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authorJason Evans <je@fb.com>2012-10-11 20:53:15 (GMT)
committerJason Evans <je@fb.com>2012-10-13 01:26:16 (GMT)
commit609ae595f0358157b19311b0f9f9591db7cee705 (patch)
tree2a51758c6218f26167eb8ad2155ccc925c898c3b /src/stats.c
parentd0ffd8ed4f6aa4cf7248028eddfcb35f93247fe4 (diff)
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Add arena-specific and selective dss allocation.
Add the "arenas.extend" mallctl, so that it is possible to create new arenas that are outside the set that jemalloc automatically multiplexes threads onto. Add the ALLOCM_ARENA() flag for {,r,d}allocm(), so that it is possible to explicitly allocate from a particular arena. Add the "opt.dss" mallctl, which controls the default precedence of dss allocation relative to mmap allocation. Add the "arena.<i>.dss" mallctl, which makes it possible to set the default dss precedence on a per arena or global basis. Add the "arena.<i>.purge" mallctl, which obsoletes "arenas.purge". Add the "stats.arenas.<i>.dss" mallctl.
Diffstat (limited to 'src/stats.c')
-rw-r--r--src/stats.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/src/stats.c b/src/stats.c
index 433b80d..43f87af 100644
--- a/src/stats.c
+++ b/src/stats.c
@@ -206,6 +206,7 @@ stats_arena_print(void (*write_cb)(void *, const char *), void *cbopaque,
unsigned i, bool bins, bool large)
{
unsigned nthreads;
+ const char *dss;
size_t page, pactive, pdirty, mapped;
uint64_t npurge, nmadvise, purged;
size_t small_allocated;
@@ -218,6 +219,9 @@ stats_arena_print(void (*write_cb)(void *, const char *), void *cbopaque,
CTL_I_GET("stats.arenas.0.nthreads", &nthreads, unsigned);
malloc_cprintf(write_cb, cbopaque,
"assigned threads: %u\n", nthreads);
+ CTL_I_GET("stats.arenas.0.dss", &dss, const char *);
+ malloc_cprintf(write_cb, cbopaque, "dss allocation precedence: %s\n",
+ dss);
CTL_I_GET("stats.arenas.0.pactive", &pactive, size_t);
CTL_I_GET("stats.arenas.0.pdirty", &pdirty, size_t);
CTL_I_GET("stats.arenas.0.npurge", &npurge, uint64_t);
@@ -370,6 +374,7 @@ stats_print(void (*write_cb)(void *, const char *), void *cbopaque,
"Run-time option settings:\n");
OPT_WRITE_BOOL(abort)
OPT_WRITE_SIZE_T(lg_chunk)
+ OPT_WRITE_CHAR_P(dss)
OPT_WRITE_SIZE_T(narenas)
OPT_WRITE_SSIZE_T(lg_dirty_mult)
OPT_WRITE_BOOL(stats_print)
@@ -400,7 +405,7 @@ stats_print(void (*write_cb)(void *, const char *), void *cbopaque,
malloc_cprintf(write_cb, cbopaque, "CPUs: %u\n", ncpus);
CTL_GET("arenas.narenas", &uv, unsigned);
- malloc_cprintf(write_cb, cbopaque, "Max arenas: %u\n", uv);
+ malloc_cprintf(write_cb, cbopaque, "Arenas: %u\n", uv);
malloc_cprintf(write_cb, cbopaque, "Pointer size: %zu\n",
sizeof(void *));
@@ -472,7 +477,8 @@ stats_print(void (*write_cb)(void *, const char *), void *cbopaque,
CTL_GET("stats.chunks.current", &chunks_current, size_t);
malloc_cprintf(write_cb, cbopaque, "chunks: nchunks "
"highchunks curchunks\n");
- malloc_cprintf(write_cb, cbopaque, " %13"PRIu64"%13zu%13zu\n",
+ malloc_cprintf(write_cb, cbopaque,
+ " %13"PRIu64" %12zu %12zu\n",
chunks_total, chunks_high, chunks_current);
/* Print huge stats. */