project-base/server-skynet-source-3rd-jemalloc
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Switch atomic uint64_ts in arena_stats_t to C11 atomics

Browse Source 
I expect this to be the trickiest conversion we will see, since we want atomics
on 64-bit platforms, but are also always able to piggyback on some sort of
external synchronization on non-64 bit platforms.
This commit is contained in:
David Goldblatt
2017-03-08 15:56:31 -08:00
committed by David Goldblatt
parent 26d23da6cd
commit 4fc2acf5ae
3 changed files with 119 additions and 54 deletions
Download Patch File Download Diff File Expand all files Collapse all files

33
include/jemalloc/internal/stats_structs.h
View File

@@ -1,6 +1,13 @@
#ifndef JEMALLOC_INTERNAL_STATS_STRUCTS_H
#define JEMALLOC_INTERNAL_STATS_STRUCTS_H
#ifdef JEMALLOC_ATOMIC_U64
typedef atomic_u64_t arena_stats_u64_t;
#else
/* Must hold the arena stats mutex while reading atomically. */
typedef uint64_t arena_stats_u64_t;
#endif
struct tcache_bin_stats_s {
/*
* Number of allocation requests that corresponded to the size of this
@@ -56,15 +63,15 @@ struct malloc_large_stats_s {
* Total number of allocation/deallocation requests served directly by
* the arena.
*/
uint64_t nmalloc;
uint64_t ndalloc;
arena_stats_u64_t nmalloc;
arena_stats_u64_t ndalloc;
/*
* Number of allocation requests that correspond to this size class.
* This includes requests served by tcache, though tcache only
* periodically merges into this counter.
*/
uint64_t nrequests; /* Partially derived. */
arena_stats_u64_t nrequests; /* Partially derived. */
/* Current number of allocations of this size class. */
size_t curlextents; /* Derived. */
@@ -96,18 +103,18 @@ struct arena_stats_s {
* and total pages purged in order to keep dirty unused memory under
* control.
*/
uint64_t npurge;
uint64_t nmadvise;
uint64_t purged;
arena_stats_u64_t npurge;
arena_stats_u64_t nmadvise;
arena_stats_u64_t purged;
size_t base; /* Derived. */
size_t internal;
size_t resident; /* Derived. */
size_t base; /* Derived. */
size_t internal;
size_t resident; /* Derived. */
size_t allocated_large; /* Derived. */
uint64_t nmalloc_large; /* Derived. */
uint64_t ndalloc_large; /* Derived. */
uint64_t nrequests_large; /* Derived. */
size_t allocated_large; /* Derived. */
arena_stats_u64_t nmalloc_large; /* Derived. */
arena_stats_u64_t ndalloc_large; /* Derived. */
arena_stats_u64_t nrequests_large; /* Derived. */
/* Number of bytes cached in tcache associated with this arena. */
size_t tcache_bytes; /* Derived. */