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authorDJ Delorie <dj@delorie.com>2017-07-06 13:37:30 -0400
committerDJ Delorie <dj@delorie.com>2017-07-06 13:37:30 -0400
commitd5c3fafc4307c9b7a4c7d5cb381fcdbfad340bcc (patch)
tree380cfbc329860434d6b29825bd02ba5f0c7d4b30 /elf
parent3cefdd7310a5d1fad45648d9346e47df9c185fdc (diff)
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Add per-thread cache to malloc
* config.make.in: Enable experimental malloc option. * configure.ac: Likewise. * configure: Regenerate. * manual/install.texi: Document it. * INSTALL: Regenerate. * malloc/Makefile: Likewise. * malloc/malloc.c: Add per-thread cache (tcache). (tcache_put): New. (tcache_get): New. (tcache_thread_freeres): New. (tcache_init): New. (__libc_malloc): Use cached chunks if available. (__libc_free): Initialize tcache if needed. (__libc_realloc): Likewise. (__libc_calloc): Likewise. (_int_malloc): Prefill tcache when appropriate. (_int_free): Likewise. (do_set_tcache_max): New. (do_set_tcache_count): New. (do_set_tcache_unsorted_limit): New. * manual/probes.texi: Document new probes. * malloc/arena.c: Add new tcache tunables. * elf/dl-tunables.list: Likewise. * manual/tunables.texi: Document them. * NEWS: Mention the per-thread cache.
Diffstat (limited to 'elf')
-rw-r--r--elf/dl-tunables.list12
1 files changed, 12 insertions, 0 deletions
diff --git a/elf/dl-tunables.list b/elf/dl-tunables.list
index df4f9622b4..c188c6ad52 100644
--- a/elf/dl-tunables.list
+++ b/elf/dl-tunables.list
@@ -76,6 +76,18 @@ glibc {
minval: 1
security_level: SXID_IGNORE
}
+ tcache_max {
+ type: SIZE_T
+ security_level: SXID_ERASE
+ }
+ tcache_count {
+ type: SIZE_T
+ security_level: SXID_ERASE
+ }
+ tcache_unsorted_limit {
+ type: SIZE_T
+ security_level: SXID_ERASE
+ }
}
tune {
hwcap_mask {