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authorQuincey Koziol <koziol@hdfgroup.org>2004-04-29 14:44:00 (GMT)
committerQuincey Koziol <koziol@hdfgroup.org>2004-04-29 14:44:00 (GMT)
commit15af61fcc763db88811daf0d9c6b2e9641167793 (patch)
tree53aa0658bd19f91605690a1aa9820a0721ae2c5f /src/H5Distore.c
parent2da3744374d4701a303c53339934c9d56dec6d50 (diff)
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[svn-r8434] Purpose:
Code optimization. Description: Use free-list pool of blocks for allocating chunk buffers, when there are no filters in the pipeline. The avoids calling malloc/free so much. Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.9 (sleipnir) too minor to require h5committest
Diffstat (limited to 'src/H5Distore.c')
-rw-r--r--src/H5Distore.c106
1 files changed, 89 insertions, 17 deletions
diff --git a/src/H5Distore.c b/src/H5Distore.c
index 54c6041..dd5064a 100644
--- a/src/H5Distore.c
+++ b/src/H5Distore.c
@@ -120,6 +120,8 @@ typedef H5F_rdcc_ent_t *H5F_rdcc_ent_ptr_t; /* For free lists */
/* Private prototypes */
static haddr_t H5F_istore_get_addr(H5F_t *f, hid_t dxpl_id, const H5O_layout_t *layout,
const hssize_t offset[]);
+static void *H5F_istore_chunk_alloc(size_t size, const H5O_pline_t *pline);
+static void *H5F_istore_chunk_xfree(void *chk, const H5O_pline_t *pline);
/* B-tree iterator callbacks */
static int H5F_istore_iter_allocated(H5F_t *f, hid_t dxpl_id, void *left_key, haddr_t addr,
@@ -215,6 +217,9 @@ H5FL_DEFINE_STATIC(H5F_rdcc_ent_t);
/* Declare a free list to manage the H5F_rdcc_ent_ptr_t sequence information */
H5FL_SEQ_DEFINE_STATIC(H5F_rdcc_ent_ptr_t);
+/* Declare a free list to manage the chunk sequence information */
+H5FL_BLK_DEFINE_STATIC(chunk);
+
/*-------------------------------------------------------------------------
* Function: H5F_istore_sizeof_rkey
@@ -947,10 +952,8 @@ H5F_istore_flush_entry(H5F_t *f, const H5D_dxpl_cache_t *dxpl_cache,
* for later.
*/
alloc = ent->chunk_size;
- if (NULL==(buf = H5MM_malloc(alloc))) {
- HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL,
- "memory allocation failed for pipeline");
- }
+ if (NULL==(buf = H5MM_malloc(alloc)))
+ HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for pipeline");
HDmemcpy(buf, ent->chunk, ent->chunk_size);
} else {
/*
@@ -988,10 +991,10 @@ H5F_istore_flush_entry(H5F_t *f, const H5D_dxpl_cache_t *dxpl_cache,
if (reset) {
point_of_no_return = FALSE;
ent->layout = H5O_free(H5O_LAYOUT_ID, ent->layout);
- ent->pline = H5O_free(H5O_PLINE_ID, ent->pline);
if (buf==ent->chunk) buf = NULL;
if(ent->chunk!=NULL)
- ent->chunk = H5MM_xfree(ent->chunk);
+ ent->chunk = H5F_istore_chunk_xfree(ent->chunk,ent->pline);
+ ent->pline = H5O_free(H5O_PLINE_ID, ent->pline);
}
done:
@@ -1007,9 +1010,9 @@ done:
*/
if (ret_value<0 && point_of_no_return) {
ent->layout = H5O_free(H5O_LAYOUT_ID, ent->layout);
- ent->pline = H5O_free(H5O_PLINE_ID, ent->pline);
if(ent->chunk)
- ent->chunk = H5MM_xfree(ent->chunk);
+ ent->chunk = H5F_istore_chunk_xfree(ent->chunk,ent->pline);
+ ent->pline = H5O_free(H5O_PLINE_ID, ent->pline);
}
FUNC_LEAVE_NOAPI(ret_value);
}
@@ -1054,9 +1057,9 @@ H5F_istore_preempt(H5F_t *f, const H5D_dxpl_cache_t *dxpl_cache, hid_t dxpl_id,
else {
/* Don't flush, just free chunk */
ent->layout = H5O_free(H5O_LAYOUT_ID, ent->layout);
- ent->pline = H5O_free(H5O_PLINE_ID, ent->pline);
if(ent->chunk != NULL)
- ent->chunk = H5MM_xfree(ent->chunk);
+ ent->chunk = H5F_istore_chunk_xfree(ent->chunk,ent->pline);
+ ent->pline = H5O_free(H5O_PLINE_ID, ent->pline);
}
/* Unlink from list */
@@ -1404,7 +1407,7 @@ H5F_istore_lock(H5F_t *f, const H5D_dxpl_cache_t *dxpl_cache, hid_t dxpl_id, con
rdcc->nhits++;
assert(layout->chunk_size>0);
H5_ASSIGN_OVERFLOW(chunk_size,layout->chunk_size,hsize_t,size_t);
- if (NULL==(chunk=H5MM_malloc (chunk_size)))
+ if (NULL==(chunk=H5F_istore_chunk_alloc (chunk_size,pline)))
HGOTO_ERROR (H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed for raw data chunk");
} else {
@@ -1431,7 +1434,7 @@ H5F_istore_lock(H5F_t *f, const H5D_dxpl_cache_t *dxpl_cache, hid_t dxpl_id, con
/* Chunk size on disk isn't [likely] the same size as the final chunk
* size in memory, so allocate memory big enough. */
chunk_alloc = udata.key.nbytes;
- if (NULL==(chunk = H5MM_malloc (chunk_alloc)))
+ if (NULL==(chunk = H5F_istore_chunk_alloc (chunk_alloc,pline)))
HGOTO_ERROR (H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed for raw data chunk");
if (H5F_block_read(f, H5FD_MEM_DRAW, udata.addr, udata.key.nbytes, dxpl_id, chunk)<0)
HGOTO_ERROR (H5E_IO, H5E_READERROR, NULL, "unable to read raw data chunk");
@@ -1448,7 +1451,7 @@ H5F_istore_lock(H5F_t *f, const H5D_dxpl_cache_t *dxpl_cache, hid_t dxpl_id, con
/* Chunk size on disk isn't [likely] the same size as the final chunk
* size in memory, so allocate memory big enough. */
- if (NULL==(chunk = H5MM_malloc (chunk_size)))
+ if (NULL==(chunk = H5F_istore_chunk_alloc (chunk_size,pline)))
HGOTO_ERROR (H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed for raw data chunk");
if (H5P_is_fill_value_defined(fill, &fill_status) < 0)
@@ -1574,7 +1577,7 @@ H5F_istore_lock(H5F_t *f, const H5D_dxpl_cache_t *dxpl_cache, hid_t dxpl_id, con
done:
if (!ret_value)
if(chunk)
- H5MM_xfree (chunk);
+ H5F_istore_chunk_xfree (chunk,pline);
FUNC_LEAVE_NOAPI(ret_value);
}
@@ -1652,7 +1655,7 @@ H5F_istore_unlock(H5F_t *f, const H5D_dxpl_cache_t *dxpl_cache, hid_t dxpl_id,
H5F_istore_flush_entry (f, dxpl_cache, dxpl_id, &x, TRUE);
} else {
if(chunk)
- H5MM_xfree (chunk);
+ H5F_istore_chunk_xfree (chunk,pline);
}
} else {
/*
@@ -2045,6 +2048,75 @@ done:
/*-------------------------------------------------------------------------
+ * Function: H5F_istore_chunk_alloc
+ *
+ * Purpose: Allocate space for a chunk in memory. This routine allocates
+ * memory space for non-filtered chunks from a block free list
+ * and uses malloc()/free() for filtered chunks.
+ *
+ * Return: Pointer to memory for chunk on success/NULL on failure
+ *
+ * Programmer: Quincey Koziol
+ * April 22, 2004
+ *
+ * Modifications:
+ *
+ *-------------------------------------------------------------------------
+ */
+static void *
+H5F_istore_chunk_alloc(size_t size, const H5O_pline_t *pline)
+{
+ void *ret_value=NULL; /* Return value */
+
+ FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5F_istore_chunk_alloc);
+
+ assert(size);
+ assert(pline);
+
+ if(pline->nused>0)
+ ret_value=H5MM_malloc(size);
+ else
+ ret_value=H5FL_BLK_MALLOC(chunk,size);
+
+ FUNC_LEAVE_NOAPI(ret_value);
+} /* H5F_istore_chunk_alloc() */
+
+
+/*-------------------------------------------------------------------------
+ * Function: H5F_istore_chunk_xfree
+ *
+ * Purpose: Free space for a chunk in memory. This routine allocates
+ * memory space for non-filtered chunks from a block free list
+ * and uses malloc()/free() for filtered chunks.
+ *
+ * Return: NULL (never fails)
+ *
+ * Programmer: Quincey Koziol
+ * April 22, 2004
+ *
+ * Modifications:
+ *
+ *-------------------------------------------------------------------------
+ */
+static void *
+H5F_istore_chunk_xfree(void *chk, const H5O_pline_t *pline)
+{
+ FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5F_istore_chunk_xfree);
+
+ assert(pline);
+
+ if(chk) {
+ if(pline->nused>0)
+ H5MM_xfree(chk);
+ else
+ H5FL_BLK_FREE(chunk,chk);
+ } /* end if */
+
+ FUNC_LEAVE_NOAPI(NULL);
+} /* H5F_istore_chunk_xfree() */
+
+
+/*-------------------------------------------------------------------------
* Function: H5F_istore_allocate
*
* Purpose: Allocate file space for all chunks that are not allocated yet.
@@ -2183,7 +2255,7 @@ H5F_istore_allocate(H5F_t *f, hid_t dxpl_id, const H5O_layout_t *layout,
if(should_fill) {
/* Allocate chunk buffer for processes to use when writing fill values */
H5_CHECK_OVERFLOW(chunk_size,hsize_t,size_t);
- if (NULL==(chunk = H5MM_malloc((size_t)chunk_size)))
+ if (NULL==(chunk = H5F_istore_chunk_alloc((size_t)chunk_size,&pline)))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for chunk");
/* Fill the chunk with the proper values */
@@ -2308,7 +2380,7 @@ H5F_istore_allocate(H5F_t *f, hid_t dxpl_id, const H5O_layout_t *layout,
done:
/* Free the chunk for fill values */
if(chunk!=NULL)
- H5MM_xfree(chunk);
+ H5F_istore_chunk_xfree(chunk,&pline);
FUNC_LEAVE_NOAPI(ret_value);
}