1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
|
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<meta name="generator" content="Doxygen 1.10.0"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title>HDF5: H5AC_cache_config_t Struct Reference</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<link href="navtree.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="resize.js"></script>
<script type="text/javascript" src="navtreedata.js"></script>
<script type="text/javascript" src="navtree.js"></script>
<script type="text/javascript" src="cookie.js"></script>
<link href="search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="search/searchdata.js"></script>
<script type="text/javascript" src="search/search.js"></script>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&dn=expat.txt MIT */
$(function() { init_search(); });
/* @license-end */
</script>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
<link href="hdf5doxy.css" rel="stylesheet" type="text/css">
<!-- <link href="hdf5doxy.css" rel="stylesheet" type="text/css"/>
-->
<script type="text/javascript" src="hdf5_navtree_hacks.js"></script>
</head>
<body>
<div style="background:#FFDDDD;font-size:120%;text-align:center;margin:0;padding:5px">Please, help us to better serve our user community by answering the following short survey: <a href="https://www.hdfgroup.org/website-survey/">https://www.hdfgroup.org/website-survey/</a></div>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
<tbody>
<tr style="height: 56px;">
<td id="projectlogo"><img alt="Logo" src="HDFG-logo.png"/></td>
<td id="projectalign" style="padding-left: 0.5em;">
<div id="projectname"><a href="https://www.hdfgroup.org">HDF5</a>
 <span id="projectnumber">1.15.0.2908dd1</span>
</div>
<div id="projectbrief">API Reference</div>
</td>
<td> <div id="MSearchBox" class="MSearchBoxInactive">
<span class="left">
<span id="MSearchSelect" onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()"> </span>
<input type="text" id="MSearchField" value="" placeholder="Search" accesskey="S"
onfocus="searchBox.OnSearchFieldFocus(true)"
onblur="searchBox.OnSearchFieldFocus(false)"
onkeyup="searchBox.OnSearchFieldChange(event)"/>
</span><span class="right">
<a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.svg" alt=""/></a>
</span>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.10.0 -->
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&dn=expat.txt MIT */
var searchBox = new SearchBox("searchBox", "search/",'.html');
/* @license-end */
</script>
</div><!-- top -->
<div id="side-nav" class="ui-resizable side-nav-resizable">
<div id="nav-tree">
<div id="nav-tree-contents">
<div id="nav-sync" class="sync"></div>
</div>
</div>
<div id="splitbar" style="-moz-user-select:none;"
class="ui-resizable-handle">
</div>
</div>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&dn=expat.txt MIT */
$(function(){initNavTree('struct_h5_a_c__cache__config__t.html',''); initResizable(); });
/* @license-end */
</script>
<div id="doc-content">
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
onkeydown="return searchBox.OnSearchSelectKey(event)">
</div>
<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<div id="MSearchResults">
<div class="SRPage">
<div id="SRIndex">
<div id="SRResults"></div>
<div class="SRStatus" id="Loading">Loading...</div>
<div class="SRStatus" id="Searching">Searching...</div>
<div class="SRStatus" id="NoMatches">No Matches</div>
</div>
</div>
</div>
</div>
<div class="header">
<div class="summary">
<a href="#pub-attribs">Data Fields</a> </div>
<div class="headertitle"><div class="title">H5AC_cache_config_t Struct Reference</div></div>
</div><!--header-->
<div class="contents">
<p><code>#include <src/H5ACpublic.h></code></p>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p><a class="el" href="struct_h5_a_c__cache__config__t.html">H5AC_cache_config_t</a> is a public structure intended for use in public APIs. At least in its initial incarnation, it is basically a copy of <code>struct</code> <code>H5C_auto_size_ctl_t</code>, minus the <code>report_fcn</code> field, and plus the <code>dirty_bytes_threshold</code> field.</p>
<p>The <code>report_fcn</code> field is omitted, as including it would require us to make <code>H5C_t</code> structure public.</p>
<p>The <code>dirty_bytes_threshold</code> field does not appear in <code>H5C_auto_size_ctl_t</code>, as synchronization between caches on different processes is handled at the <code>H5AC</code> level, not at the level of <code>H5C</code>. Note however that there is considerable interaction between this value and the other fields in this structure.</p>
<p>Similarly, the <code>open_trace_file</code>, <code>close_trace_file</code>, and <code>trace_file_name</code> fields do not appear in <code>H5C_auto_size_ctl_t</code>, as most trace file issues are handled at the <code>H5AC</code> level. The one exception is storage of the pointer to the trace file, which is handled by <code>H5C</code>.</p>
<p>The structure is in <a class="el" href="_h5_a_cpublic_8h.html">H5ACpublic.h</a> as we may wish to allow different configuration options for metadata and raw data caches. </p>
</div><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="pub-attribs" name="pub-attribs"></a>
Data Fields</h2></td></tr>
<tr class="memitem:aad880fc4455c253781e8968f2239d56f" id="r_aad880fc4455c253781e8968f2239d56f"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="#aad880fc4455c253781e8968f2239d56f">version</a></td></tr>
<tr class="separator:aad880fc4455c253781e8968f2239d56f"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aab04b3e770d1c2decc03f6fd94b64b17" id="r_aab04b3e770d1c2decc03f6fd94b64b17"><td class="memItemLeft" align="right" valign="top"><a class="el" href="_h5public_8h.html#ad470b00eccd2115c707c02de5fa1120d">hbool_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="#aab04b3e770d1c2decc03f6fd94b64b17">rpt_fcn_enabled</a></td></tr>
<tr class="separator:aab04b3e770d1c2decc03f6fd94b64b17"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a6c03d051d5efb0e64bdca5d0b354a8b1" id="r_a6c03d051d5efb0e64bdca5d0b354a8b1"><td class="memItemLeft" align="right" valign="top"><a class="el" href="_h5public_8h.html#ad470b00eccd2115c707c02de5fa1120d">hbool_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="#a6c03d051d5efb0e64bdca5d0b354a8b1">open_trace_file</a></td></tr>
<tr class="separator:a6c03d051d5efb0e64bdca5d0b354a8b1"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aced3486ae892a53209b7aae069a34be9" id="r_aced3486ae892a53209b7aae069a34be9"><td class="memItemLeft" align="right" valign="top"><a class="el" href="_h5public_8h.html#ad470b00eccd2115c707c02de5fa1120d">hbool_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="#aced3486ae892a53209b7aae069a34be9">close_trace_file</a></td></tr>
<tr class="separator:aced3486ae892a53209b7aae069a34be9"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a92e7d20eb2b7b353961c64558ddac080" id="r_a92e7d20eb2b7b353961c64558ddac080"><td class="memItemLeft" align="right" valign="top">char </td><td class="memItemRight" valign="bottom"><a class="el" href="#a92e7d20eb2b7b353961c64558ddac080">trace_file_name</a> [1024+1]</td></tr>
<tr class="separator:a92e7d20eb2b7b353961c64558ddac080"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a3d6e32c7a9bf8f65848c6840e1de8c6e" id="r_a3d6e32c7a9bf8f65848c6840e1de8c6e"><td class="memItemLeft" align="right" valign="top"><a class="el" href="_h5public_8h.html#ad470b00eccd2115c707c02de5fa1120d">hbool_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="#a3d6e32c7a9bf8f65848c6840e1de8c6e">evictions_enabled</a></td></tr>
<tr class="separator:a3d6e32c7a9bf8f65848c6840e1de8c6e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a707198a337ece01a37dfec6e01275d82" id="r_a707198a337ece01a37dfec6e01275d82"><td class="memItemLeft" align="right" valign="top"><a class="el" href="_h5public_8h.html#ad470b00eccd2115c707c02de5fa1120d">hbool_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="#a707198a337ece01a37dfec6e01275d82">set_initial_size</a></td></tr>
<tr class="separator:a707198a337ece01a37dfec6e01275d82"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a649236e7dd714855a50f122aa5caca9f" id="r_a649236e7dd714855a50f122aa5caca9f"><td class="memItemLeft" align="right" valign="top">size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="#a649236e7dd714855a50f122aa5caca9f">initial_size</a></td></tr>
<tr class="separator:a649236e7dd714855a50f122aa5caca9f"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:abd805b98f873c1720f34a0ce937838fd" id="r_abd805b98f873c1720f34a0ce937838fd"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="#abd805b98f873c1720f34a0ce937838fd">min_clean_fraction</a></td></tr>
<tr class="separator:abd805b98f873c1720f34a0ce937838fd"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:af4728438dee601cb2554d9bf18d78a43" id="r_af4728438dee601cb2554d9bf18d78a43"><td class="memItemLeft" align="right" valign="top">size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="#af4728438dee601cb2554d9bf18d78a43">max_size</a></td></tr>
<tr class="separator:af4728438dee601cb2554d9bf18d78a43"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:af99ca22b80e05fd5b3603806348ab647" id="r_af99ca22b80e05fd5b3603806348ab647"><td class="memItemLeft" align="right" valign="top">size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="#af99ca22b80e05fd5b3603806348ab647">min_size</a></td></tr>
<tr class="separator:af99ca22b80e05fd5b3603806348ab647"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac998e51b01e0eef09d9a29c43f97e4bf" id="r_ac998e51b01e0eef09d9a29c43f97e4bf"><td class="memItemLeft" align="right" valign="top">long int </td><td class="memItemRight" valign="bottom"><a class="el" href="#ac998e51b01e0eef09d9a29c43f97e4bf">epoch_length</a></td></tr>
<tr class="separator:ac998e51b01e0eef09d9a29c43f97e4bf"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae825aaf759060239e92170d20eb97d26" id="r_ae825aaf759060239e92170d20eb97d26"><td class="memItemLeft" align="right" valign="top">enum <a class="el" href="_h5_cpublic_8h.html#a040d488146ff1ca0a82209e9af3918fa">H5C_cache_incr_mode</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="#ae825aaf759060239e92170d20eb97d26">incr_mode</a></td></tr>
<tr class="separator:ae825aaf759060239e92170d20eb97d26"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a20f323fcb4747fc7228d2d74bb965586" id="r_a20f323fcb4747fc7228d2d74bb965586"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="#a20f323fcb4747fc7228d2d74bb965586">lower_hr_threshold</a></td></tr>
<tr class="separator:a20f323fcb4747fc7228d2d74bb965586"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac504dff76b24ab9f15536c51aec9fbbb" id="r_ac504dff76b24ab9f15536c51aec9fbbb"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="#ac504dff76b24ab9f15536c51aec9fbbb">increment</a></td></tr>
<tr class="separator:ac504dff76b24ab9f15536c51aec9fbbb"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a322f2a955e71ab7ede483e991e76f806" id="r_a322f2a955e71ab7ede483e991e76f806"><td class="memItemLeft" align="right" valign="top"><a class="el" href="_h5public_8h.html#ad470b00eccd2115c707c02de5fa1120d">hbool_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="#a322f2a955e71ab7ede483e991e76f806">apply_max_increment</a></td></tr>
<tr class="separator:a322f2a955e71ab7ede483e991e76f806"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ad5a729f1d611f2780679a35b3524052c" id="r_ad5a729f1d611f2780679a35b3524052c"><td class="memItemLeft" align="right" valign="top">size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="#ad5a729f1d611f2780679a35b3524052c">max_increment</a></td></tr>
<tr class="separator:ad5a729f1d611f2780679a35b3524052c"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a0e25a1dc2c695bea335df0e23ed6363c" id="r_a0e25a1dc2c695bea335df0e23ed6363c"><td class="memItemLeft" align="right" valign="top">enum <a class="el" href="_h5_cpublic_8h.html#aaaa13ca7756d135b7df6d5a6779ee908">H5C_cache_flash_incr_mode</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="#a0e25a1dc2c695bea335df0e23ed6363c">flash_incr_mode</a></td></tr>
<tr class="separator:a0e25a1dc2c695bea335df0e23ed6363c"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a77b1812e0407c9122db524462a5c9633" id="r_a77b1812e0407c9122db524462a5c9633"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="#a77b1812e0407c9122db524462a5c9633">flash_multiple</a></td></tr>
<tr class="separator:a77b1812e0407c9122db524462a5c9633"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a95fb1e03a77ef5c109d0c851416ced55" id="r_a95fb1e03a77ef5c109d0c851416ced55"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="#a95fb1e03a77ef5c109d0c851416ced55">flash_threshold</a></td></tr>
<tr class="separator:a95fb1e03a77ef5c109d0c851416ced55"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a5df68196b281c19d8ab7da0788566aec" id="r_a5df68196b281c19d8ab7da0788566aec"><td class="memItemLeft" align="right" valign="top">enum <a class="el" href="_h5_cpublic_8h.html#a4f8534794ad9a977185a5d608c0af04f">H5C_cache_decr_mode</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="#a5df68196b281c19d8ab7da0788566aec">decr_mode</a></td></tr>
<tr class="separator:a5df68196b281c19d8ab7da0788566aec"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a84a5ff4ac69196aa27c14f6f796db596" id="r_a84a5ff4ac69196aa27c14f6f796db596"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="#a84a5ff4ac69196aa27c14f6f796db596">upper_hr_threshold</a></td></tr>
<tr class="separator:a84a5ff4ac69196aa27c14f6f796db596"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a54007d3f2afb718b437f499a5c8b46d9" id="r_a54007d3f2afb718b437f499a5c8b46d9"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="#a54007d3f2afb718b437f499a5c8b46d9">decrement</a></td></tr>
<tr class="separator:a54007d3f2afb718b437f499a5c8b46d9"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac2c89a735413e4c36d6f463c4890ab42" id="r_ac2c89a735413e4c36d6f463c4890ab42"><td class="memItemLeft" align="right" valign="top"><a class="el" href="_h5public_8h.html#ad470b00eccd2115c707c02de5fa1120d">hbool_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="#ac2c89a735413e4c36d6f463c4890ab42">apply_max_decrement</a></td></tr>
<tr class="separator:ac2c89a735413e4c36d6f463c4890ab42"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a75e875a61c9da7f82482d0f6fe6e7152" id="r_a75e875a61c9da7f82482d0f6fe6e7152"><td class="memItemLeft" align="right" valign="top">size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="#a75e875a61c9da7f82482d0f6fe6e7152">max_decrement</a></td></tr>
<tr class="separator:a75e875a61c9da7f82482d0f6fe6e7152"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a7ac41e345300bdecd9943e855d55b71b" id="r_a7ac41e345300bdecd9943e855d55b71b"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="#a7ac41e345300bdecd9943e855d55b71b">epochs_before_eviction</a></td></tr>
<tr class="separator:a7ac41e345300bdecd9943e855d55b71b"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a6c5cff8e8a21230cc7f21859d8d6bd22" id="r_a6c5cff8e8a21230cc7f21859d8d6bd22"><td class="memItemLeft" align="right" valign="top"><a class="el" href="_h5public_8h.html#ad470b00eccd2115c707c02de5fa1120d">hbool_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="#a6c5cff8e8a21230cc7f21859d8d6bd22">apply_empty_reserve</a></td></tr>
<tr class="separator:a6c5cff8e8a21230cc7f21859d8d6bd22"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a9c1ae995513b55737aad09e11beff733" id="r_a9c1ae995513b55737aad09e11beff733"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="#a9c1ae995513b55737aad09e11beff733">empty_reserve</a></td></tr>
<tr class="separator:a9c1ae995513b55737aad09e11beff733"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a8e3c2a2d300b7a8f8d3705fc5e59a3c1" id="r_a8e3c2a2d300b7a8f8d3705fc5e59a3c1"><td class="memItemLeft" align="right" valign="top">size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="#a8e3c2a2d300b7a8f8d3705fc5e59a3c1">dirty_bytes_threshold</a></td></tr>
<tr class="separator:a8e3c2a2d300b7a8f8d3705fc5e59a3c1"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a83a536128dbb7785b2553c294f33d1fe" id="r_a83a536128dbb7785b2553c294f33d1fe"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="#a83a536128dbb7785b2553c294f33d1fe">metadata_write_strategy</a></td></tr>
<tr class="separator:a83a536128dbb7785b2553c294f33d1fe"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<h2 class="groupheader">Field Documentation</h2>
<a id="a6c5cff8e8a21230cc7f21859d8d6bd22" name="a6c5cff8e8a21230cc7f21859d8d6bd22"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a6c5cff8e8a21230cc7f21859d8d6bd22">◆ </a></span>apply_empty_reserve</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="_h5public_8h.html#ad470b00eccd2115c707c02de5fa1120d">hbool_t</a> apply_empty_reserve</td>
</tr>
</table>
</div><div class="memdoc">
<p>Boolean flag indicating whether the ageout based decrement algorithms will maintain a empty reserve when decreasing cache size. </p>
</div>
</div>
<a id="ac2c89a735413e4c36d6f463c4890ab42" name="ac2c89a735413e4c36d6f463c4890ab42"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ac2c89a735413e4c36d6f463c4890ab42">◆ </a></span>apply_max_decrement</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="_h5public_8h.html#ad470b00eccd2115c707c02de5fa1120d">hbool_t</a> apply_max_decrement</td>
</tr>
</table>
</div><div class="memdoc">
<p>Boolean flag indicating ether an upper limit should be applied to the size of cache size decreases. </p>
</div>
</div>
<a id="a322f2a955e71ab7ede483e991e76f806" name="a322f2a955e71ab7ede483e991e76f806"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a322f2a955e71ab7ede483e991e76f806">◆ </a></span>apply_max_increment</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="_h5public_8h.html#ad470b00eccd2115c707c02de5fa1120d">hbool_t</a> apply_max_increment</td>
</tr>
</table>
</div><div class="memdoc">
<p>Boolean flag indicating whether an upper limit should be applied to the size of cache size increases. </p>
</div>
</div>
<a id="aced3486ae892a53209b7aae069a34be9" name="aced3486ae892a53209b7aae069a34be9"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aced3486ae892a53209b7aae069a34be9">◆ </a></span>close_trace_file</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="_h5public_8h.html#ad470b00eccd2115c707c02de5fa1120d">hbool_t</a> close_trace_file</td>
</tr>
</table>
</div><div class="memdoc">
<p>Boolean field indicating whether the current trace file (if any) should be closed.<br />
See the above comments on the <a class="el" href="#a6c03d051d5efb0e64bdca5d0b354a8b1">open_trace_file</a> field. This field should be set to 0 unless there is an open trace file on the cache that you wish to close.<br />
The trace file feature is unsupported unless used at the direction of The HDF Group. It is intended to allow The HDF Group to collect a trace of cache activity in cases of occult failures and/or poor performance seen in the field, so as to aid in reproduction in the lab. If you use it absent the direction of The HDF Group, you are on your own. </p>
</div>
</div>
<a id="a5df68196b281c19d8ab7da0788566aec" name="a5df68196b281c19d8ab7da0788566aec"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a5df68196b281c19d8ab7da0788566aec">◆ </a></span>decr_mode</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">enum <a class="el" href="_h5_cpublic_8h.html#a4f8534794ad9a977185a5d608c0af04f">H5C_cache_decr_mode</a> decr_mode</td>
</tr>
</table>
</div><div class="memdoc">
<p>Enumerated value indicating the operational mode of the tomatic cache size decrease code. At present, the values listed in <a class="el" href="_h5_cpublic_8h.html#a4f8534794ad9a977185a5d608c0af04f">H5C_cache_decr_mode</a> are legal. </p>
</div>
</div>
<a id="a54007d3f2afb718b437f499a5c8b46d9" name="a54007d3f2afb718b437f499a5c8b46d9"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a54007d3f2afb718b437f499a5c8b46d9">◆ </a></span>decrement</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">double decrement</td>
</tr>
</table>
</div><div class="memdoc">
<p>In the hit rate threshold cache size decrease algorithm, this parameter contains the factor by which the current max cache size is multiplied to produce a tentative new cache size.<br />
The actual cache size decrease will be clipped to satisfy the <a class="el" href="#af99ca22b80e05fd5b3603806348ab647">min_size</a> specified in the general configuration, and possibly <a class="el" href="#a75e875a61c9da7f82482d0f6fe6e7152">max_decrement</a>.<br />
The parameter must be be in the interval [0.0, 1.0].<br />
If you set it to 1.0, you will effectively disable cache size decreases. 0.9 is a reasonable starting point. </p>
</div>
</div>
<a id="a8e3c2a2d300b7a8f8d3705fc5e59a3c1" name="a8e3c2a2d300b7a8f8d3705fc5e59a3c1"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a8e3c2a2d300b7a8f8d3705fc5e59a3c1">◆ </a></span>dirty_bytes_threshold</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">size_t dirty_bytes_threshold</td>
</tr>
</table>
</div><div class="memdoc">
<p>Threshold number of bytes of dirty metadata generation for triggering synchronizations of the metadata caches serving the target file in the parallel case.<br />
Synchronization occurs whenever the number of bytes of dirty metadata created since the last synchronization exceeds this limit.<br />
This field only applies to the parallel case. While it is ignored elsewhere, it can still draw a value out of bounds error.<br />
It must be consistent across all caches on any given file.<br />
By default, this field is set to 256 KB. It shouldn't be more than half the current max cache size times the min clean fraction. </p>
</div>
</div>
<a id="a9c1ae995513b55737aad09e11beff733" name="a9c1ae995513b55737aad09e11beff733"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a9c1ae995513b55737aad09e11beff733">◆ </a></span>empty_reserve</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">double empty_reserve</td>
</tr>
</table>
</div><div class="memdoc">
<p>Empty reserve as a fraction maximum cache size if applicable.<br />
When so directed, the ageout based algorithms will not decrease the maximum cache size unless the empty reserve can be met.<br />
The parameter must lie in the interval [0.0, 1.0]. 0.1 or 0.05 is a good place to start. </p>
</div>
</div>
<a id="ac998e51b01e0eef09d9a29c43f97e4bf" name="ac998e51b01e0eef09d9a29c43f97e4bf"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ac998e51b01e0eef09d9a29c43f97e4bf">◆ </a></span>epoch_length</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">long int epoch_length</td>
</tr>
</table>
</div><div class="memdoc">
<p>Number of cache accesses between runs of the adaptive cache resize code. 50,000 is a good starting number. </p>
</div>
</div>
<a id="a7ac41e345300bdecd9943e855d55b71b" name="a7ac41e345300bdecd9943e855d55b71b"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a7ac41e345300bdecd9943e855d55b71b">◆ </a></span>epochs_before_eviction</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int epochs_before_eviction</td>
</tr>
</table>
</div><div class="memdoc">
<p>In the ageout based cache size reduction algorithms, this field contains the minimum number of epochs an entry must remain unaccessed in cache before the cache size reduction algorithm tries to evict it. 3 is a reasonable value. </p>
</div>
</div>
<a id="a3d6e32c7a9bf8f65848c6840e1de8c6e" name="a3d6e32c7a9bf8f65848c6840e1de8c6e"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a3d6e32c7a9bf8f65848c6840e1de8c6e">◆ </a></span>evictions_enabled</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="_h5public_8h.html#ad470b00eccd2115c707c02de5fa1120d">hbool_t</a> evictions_enabled</td>
</tr>
</table>
</div><div class="memdoc">
<p>A boolean flag indicating whether evictions from the metadata cache are enabled. This flag is initially set to enabled (1).<br />
In rare circumstances, the raw data throughput quirements may be so high that the user wishes to postpone metadata writes so as to reserve I/O throughput for raw data. The <code>evictions_enabled</code> field exists to allow this. However, this is an extreme step, and you have no business doing it unless you have read the User Guide section on metadata caching, and have considered all other options carefully.<br />
The <code>evictions_enabled</code> field may not be set to disabled (0) unless all adaptive cache resizing code is disabled via the <a class="el" href="#ae825aaf759060239e92170d20eb97d26">incr_mode</a>, <a class="el" href="#a0e25a1dc2c695bea335df0e23ed6363c">flash_incr_mode</a>, <a class="el" href="#a5df68196b281c19d8ab7da0788566aec">decr_mode</a> fields.<br />
When this flag is set to disabled (<code>0</code>), the metadata cache will not attempt to evict entries to make space for new entries, and thus will grow without bound.<br />
Evictions will be re-enabled when this field is set back to <code>1</code>. This should be done as soon as possible. </p>
</div>
</div>
<a id="a0e25a1dc2c695bea335df0e23ed6363c" name="a0e25a1dc2c695bea335df0e23ed6363c"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a0e25a1dc2c695bea335df0e23ed6363c">◆ </a></span>flash_incr_mode</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">enum <a class="el" href="_h5_cpublic_8h.html#aaaa13ca7756d135b7df6d5a6779ee908">H5C_cache_flash_incr_mode</a> flash_incr_mode</td>
</tr>
</table>
</div><div class="memdoc">
<p>Enumerated value indicating the operational mode of the flash cache size increase code. At present, only two listed values in <a class="el" href="_h5_cpublic_8h.html#aaaa13ca7756d135b7df6d5a6779ee908">H5C_cache_flash_incr_mode</a> are legal. </p>
</div>
</div>
<a id="a77b1812e0407c9122db524462a5c9633" name="a77b1812e0407c9122db524462a5c9633"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a77b1812e0407c9122db524462a5c9633">◆ </a></span>flash_multiple</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">double flash_multiple</td>
</tr>
</table>
</div><div class="memdoc">
<p>The factor by which the size of the triggering entry / entry size increase is multiplied to obtain the initial cache size increment. This increment may be reduced to reflect existing free space in the cache and the <code>max_size</code> field above.<br />
The parameter must lie in the interval [0.0, 1.0]. 0.1 or 0.05 is a good place to start.<br />
At present, this field must lie in the range [0.1, 10.0]. </p>
</div>
</div>
<a id="a95fb1e03a77ef5c109d0c851416ced55" name="a95fb1e03a77ef5c109d0c851416ced55"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a95fb1e03a77ef5c109d0c851416ced55">◆ </a></span>flash_threshold</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">double flash_threshold</td>
</tr>
</table>
</div><div class="memdoc">
<p>The factor by which the current maximum cache size is multiplied to obtain the minimum size entry / entry size increase which may trigger a flash cache size increase. <br />
At present, this value must lie in the range [0.1, 1.0]. </p>
</div>
</div>
<a id="ae825aaf759060239e92170d20eb97d26" name="ae825aaf759060239e92170d20eb97d26"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ae825aaf759060239e92170d20eb97d26">◆ </a></span>incr_mode</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">enum <a class="el" href="_h5_cpublic_8h.html#a040d488146ff1ca0a82209e9af3918fa">H5C_cache_incr_mode</a> incr_mode</td>
</tr>
</table>
</div><div class="memdoc">
<p>Enumerated value indicating the operational mode of the automatic cache size increase code. At present, only two values listed in <a class="el" href="_h5_cpublic_8h.html#a040d488146ff1ca0a82209e9af3918fa">H5C_cache_incr_mode</a> are legal. </p>
</div>
</div>
<a id="ac504dff76b24ab9f15536c51aec9fbbb" name="ac504dff76b24ab9f15536c51aec9fbbb"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ac504dff76b24ab9f15536c51aec9fbbb">◆ </a></span>increment</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">double increment</td>
</tr>
</table>
</div><div class="memdoc">
<p>Factor by which the hit rate threshold cache size increment algorithm multiplies the current cache max size to obtain a tentative new cache size.<br />
The actual cache size increase will be clipped to satisfy the <code>max_size</code> specified in the general configuration, and possibly max_increment below.<br />
The parameter must be greater than or equal to 1.0 – 2.0 is a reasonable value.<br />
If you set it to 1.0, you will effectively disable cache size increases. </p>
</div>
</div>
<a id="a649236e7dd714855a50f122aa5caca9f" name="a649236e7dd714855a50f122aa5caca9f"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a649236e7dd714855a50f122aa5caca9f">◆ </a></span>initial_size</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">size_t initial_size</td>
</tr>
</table>
</div><div class="memdoc">
<p>If <a class="el" href="#a707198a337ece01a37dfec6e01275d82">set_initial_size</a> is set to 1, <code>initial_size</code> must contain he desired initial size in bytes. This value must lie in the closed interval [ <code>min_size</code>, <code>max_size</code> ]. (see below) </p>
</div>
</div>
<a id="a20f323fcb4747fc7228d2d74bb965586" name="a20f323fcb4747fc7228d2d74bb965586"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a20f323fcb4747fc7228d2d74bb965586">◆ </a></span>lower_hr_threshold</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">double lower_hr_threshold</td>
</tr>
</table>
</div><div class="memdoc">
<p>Hit rate threshold used by the hit rate threshold cache size increment algorithm.<br />
When the hit rate over an epoch is below this threshold and the cache is full, the maximum size of the cache is multiplied by increment (below), and then clipped as necessary to stay within <code>max_size</code>, and possibly <code>max_increment</code>.<br />
This field must lie in the interval [0.0, 1.0]. 0.8 or 0.9 is a good place to start. </p>
</div>
</div>
<a id="a75e875a61c9da7f82482d0f6fe6e7152" name="a75e875a61c9da7f82482d0f6fe6e7152"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a75e875a61c9da7f82482d0f6fe6e7152">◆ </a></span>max_decrement</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">size_t max_decrement</td>
</tr>
</table>
</div><div class="memdoc">
<p>Maximum number of bytes by which the maximum cache size can be decreased in any single step – if applicable. </p>
</div>
</div>
<a id="ad5a729f1d611f2780679a35b3524052c" name="ad5a729f1d611f2780679a35b3524052c"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ad5a729f1d611f2780679a35b3524052c">◆ </a></span>max_increment</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">size_t max_increment</td>
</tr>
</table>
</div><div class="memdoc">
<p>Maximum number of bytes by which cache size can be increased in a single step – if applicable. </p>
</div>
</div>
<a id="af4728438dee601cb2554d9bf18d78a43" name="af4728438dee601cb2554d9bf18d78a43"></a>
<h2 class="memtitle"><span class="permalink"><a href="#af4728438dee601cb2554d9bf18d78a43">◆ </a></span>max_size</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">size_t max_size</td>
</tr>
</table>
</div><div class="memdoc">
<p>Upper bound (in bytes) on the range of values that the adaptive cache resize code can select as the maximum cache size. </p>
</div>
</div>
<a id="a83a536128dbb7785b2553c294f33d1fe" name="a83a536128dbb7785b2553c294f33d1fe"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a83a536128dbb7785b2553c294f33d1fe">◆ </a></span>metadata_write_strategy</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int metadata_write_strategy</td>
</tr>
</table>
</div><div class="memdoc">
<p>Desired metadata write strategy. The valid values for this field are:<br />
<a class="el" href="_h5_a_cpublic_8h.html#a5ef1a23a562608db819d7e805f490404">H5AC_METADATA_WRITE_STRATEGY__PROCESS_0_ONLY</a>: Specifies the only process zero is allowed to write dirty metadata to disk.<br />
<a class="el" href="_h5_a_cpublic_8h.html#af7cea0f4927dfafa3017a34e2b84cce3">H5AC_METADATA_WRITE_STRATEGY__DISTRIBUTED</a>: Specifies that process zero still makes the decisions as to what entries should be flushed, but the actual flushes are distributed across the processes in the computation to the extent possible.<br />
The <a class="el" href="_h5_a_cpublic_8h.html">src/H5ACpublic.h</a> include file in the HDF5 library has detailed information on each strategy. </p>
</div>
</div>
<a id="abd805b98f873c1720f34a0ce937838fd" name="abd805b98f873c1720f34a0ce937838fd"></a>
<h2 class="memtitle"><span class="permalink"><a href="#abd805b98f873c1720f34a0ce937838fd">◆ </a></span>min_clean_fraction</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">double min_clean_fraction</td>
</tr>
</table>
</div><div class="memdoc">
<p>This field specifies the minimum fraction of the cache that must be kept either clean or empty.<br />
The value must lie in the interval [0.0, 1.0]. 0.01 is a good place to start in the serial case. In the parallel case, a larger value is needed – see the overview of the metadata cache in the “Metadata Caching in HDF5” section of the – <em><a class="el" href="_u_g.html">HDF5 User Guide</a></em> for details. </p>
</div>
</div>
<a id="af99ca22b80e05fd5b3603806348ab647" name="af99ca22b80e05fd5b3603806348ab647"></a>
<h2 class="memtitle"><span class="permalink"><a href="#af99ca22b80e05fd5b3603806348ab647">◆ </a></span>min_size</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">size_t min_size</td>
</tr>
</table>
</div><div class="memdoc">
<p>Lower bound (in bytes) on the range of values that the adaptive cache resize code can select as the minimum cache * size. </p>
</div>
</div>
<a id="a6c03d051d5efb0e64bdca5d0b354a8b1" name="a6c03d051d5efb0e64bdca5d0b354a8b1"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a6c03d051d5efb0e64bdca5d0b354a8b1">◆ </a></span>open_trace_file</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="_h5public_8h.html#ad470b00eccd2115c707c02de5fa1120d">hbool_t</a> open_trace_file</td>
</tr>
</table>
</div><div class="memdoc">
<p>Boolean field indicating whether the <a class="el" href="#a92e7d20eb2b7b353961c64558ddac080">trace_file_name</a> field should be used to open a trace file for the cache.<br />
The trace file is a debugging feature that allows the capture of top level metadata cache requests for purposes of debugging and/or optimization. This field should normally be set to 0, as trace file collection imposes considerable overhead.<br />
This field should only be set to 1 when the <a class="el" href="#a92e7d20eb2b7b353961c64558ddac080">trace_file_name</a> contains the full path of the desired trace file, and either there is no open trace file on the cache, or the <a class="el" href="#aced3486ae892a53209b7aae069a34be9">close_trace_file</a> field is also 1.<br />
The trace file feature is unsupported unless used at the direction of The HDF Group. It is intended to allow The HDF Group to collect a trace of cache activity in cases of occult failures and/or poor performance seen in the field, so as to aid in reproduction in the lab. If you use it absent the direction of The HDF Group, you are on your own. </p>
</div>
</div>
<a id="aab04b3e770d1c2decc03f6fd94b64b17" name="aab04b3e770d1c2decc03f6fd94b64b17"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aab04b3e770d1c2decc03f6fd94b64b17">◆ </a></span>rpt_fcn_enabled</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="_h5public_8h.html#ad470b00eccd2115c707c02de5fa1120d">hbool_t</a> rpt_fcn_enabled</td>
</tr>
</table>
</div><div class="memdoc">
<p>Boolean flag indicating whether the adaptive cache resize report function is enabled. This field should almost always be set to disabled (0). Since resize algorithm activity is reported via stdout, it MUST be set to disabled (0) on Windows machines.<br />
The report function is not supported code, and can be expected to change between versions of the library. Use it at your own risk. </p>
</div>
</div>
<a id="a707198a337ece01a37dfec6e01275d82" name="a707198a337ece01a37dfec6e01275d82"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a707198a337ece01a37dfec6e01275d82">◆ </a></span>set_initial_size</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="_h5public_8h.html#ad470b00eccd2115c707c02de5fa1120d">hbool_t</a> set_initial_size</td>
</tr>
</table>
</div><div class="memdoc">
<p>Boolean flag indicating whether the cache should be created with a user specified initial size. </p>
</div>
</div>
<a id="a92e7d20eb2b7b353961c64558ddac080" name="a92e7d20eb2b7b353961c64558ddac080"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a92e7d20eb2b7b353961c64558ddac080">◆ </a></span>trace_file_name</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">char trace_file_name[1024+1]</td>
</tr>
</table>
</div><div class="memdoc">
<p>Full path of the trace file to be opened if the <a class="el" href="#a6c03d051d5efb0e64bdca5d0b354a8b1">open_trace_file</a> field is set to 1.<br />
In the parallel case, an ascii representation of the MPI rank of the process will be appended to the file name to yield a unique trace file name for each process.<br />
The length of the path must not exceed <a class="el" href="_h5_a_cpublic_8h.html#a717f1f3545cfc3d1b2208c96cc0c3bd3">H5AC__MAX_TRACE_FILE_NAME_LEN</a> characters.<br />
The trace file feature is unsupported unless used at the direction of The HDF Group. It is intended to allow The HDF Group to collect a trace of cache activity in cases of occult failures and/or poor performance seen in the field, so as to aid in reproduction in the lab. If you use it absent the direction of The HDF Group, you are on your own. </p>
</div>
</div>
<a id="a84a5ff4ac69196aa27c14f6f796db596" name="a84a5ff4ac69196aa27c14f6f796db596"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a84a5ff4ac69196aa27c14f6f796db596">◆ </a></span>upper_hr_threshold</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">double upper_hr_threshold</td>
</tr>
</table>
</div><div class="memdoc">
<p>Hit rate threshold for the hit rate threshold and ageout with hit rate threshold cache size decrement algorithms.<br />
When <code>decr_mode</code> is <a class="el" href="_h5_cpublic_8h.html#a4f8534794ad9a977185a5d608c0af04fa7a646a7d80a674a72c25713eb0e6944a">H5C_decr__threshold</a>, and the hit rate over a given epoch exceeds the supplied threshold, the current maximum cache size is multiplied by decrement to obtain a tentative new (and smaller) maximum cache size.<br />
When <code>decr_mode</code> is <a class="el" href="_h5_cpublic_8h.html#a4f8534794ad9a977185a5d608c0af04fae833c5cd6228580992471c1c16ad54d2">H5C_decr__age_out_with_threshold</a>, there is no attempt to find and evict aged out entries unless the hit rate in the previous epoch exceeded the supplied threshold.<br />
This field must lie in the interval [0.0, 1.0].<br />
For <a class="el" href="_h5_cpublic_8h.html#a040d488146ff1ca0a82209e9af3918faa7b5e2f56b49e6b10c9e0ba88b3ebb894">H5C_incr__threshold</a>, .9995 or .99995 is a good place to start.<br />
For <a class="el" href="_h5_cpublic_8h.html#a4f8534794ad9a977185a5d608c0af04fae833c5cd6228580992471c1c16ad54d2">H5C_decr__age_out_with_threshold</a>, .999 might be more useful. </p>
</div>
</div>
<a id="aad880fc4455c253781e8968f2239d56f" name="aad880fc4455c253781e8968f2239d56f"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aad880fc4455c253781e8968f2239d56f">◆ </a></span>version</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int version</td>
</tr>
</table>
</div><div class="memdoc">
<p>Integer field indicating the version of the <a class="el" href="struct_h5_a_c__cache__config__t.html">H5AC_cache_config_t</a> in use. This field should be set to <a class="el" href="_h5_a_cpublic_8h.html#a3f9ce24b57f5ff1b5a1a301f47f89799">H5AC__CURR_CACHE_CONFIG_VERSION</a> (defined in <a class="el" href="_h5_a_cpublic_8h.html">H5ACpublic.h</a>). </p>
</div>
</div>
<hr/>The documentation for this struct was generated from the following file:<ul>
<li>src/<a class="el" href="_h5_a_cpublic_8h.html">H5ACpublic.h</a></li>
</ul>
</div><!-- contents -->
</div><!-- doc-content -->
<!-- start footer part -->
<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
<ul>
<li class="navelem"><a class="el" href="struct_h5_a_c__cache__config__t.html">H5AC_cache_config_t</a></li>
<li class="footer">Generated by
<a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.10.0 </li>
</ul>
</div>
</body>
</html>
|
