diff options
| author | Jason Evans <je@fb.com> | 2012-02-13 22:30:52 (GMT) |
|---|---|---|
| committer | Jason Evans <je@fb.com> | 2012-02-13 23:03:59 (GMT) |
| commit | ef8897b4b938111fcc9b54725067f1dbb33a4c20 (patch) | |
| tree | 46e59a294ec4b435432de0f2bd9412f5caaec9b7 /src/ctl.c | |
| parent | 0fee70d718b9846cfab04225dc86a4b4216b963f (diff) | |
| download | jemalloc-ef8897b4b938111fcc9b54725067f1dbb33a4c20.zip jemalloc-ef8897b4b938111fcc9b54725067f1dbb33a4c20.tar.gz jemalloc-ef8897b4b938111fcc9b54725067f1dbb33a4c20.tar.bz2 | |
Make 8-byte tiny size class non-optional.
When tiny size class support was first added, it was intended to support
truly tiny size classes (even 2 bytes). However, this wasn't very
useful in practice, so the minimum tiny size class has been limited to
sizeof(void *) for a long time now. This is too small to be standards
compliant, but other commonly used malloc implementations do not even
bother using a 16-byte quantum on systems with vector units (SSE2+,
AltiVEC, etc.). As such, it is safe in practice to support an 8-byte
tiny size class on 64-bit systems that support 16-byte types.
Diffstat (limited to 'src/ctl.c')
| -rw-r--r-- | src/ctl.c | 9 |
1 files changed, 2 insertions, 7 deletions
@@ -56,7 +56,6 @@ CTL_PROTO(config_prof_libunwind) CTL_PROTO(config_stats) CTL_PROTO(config_sysv) CTL_PROTO(config_tcache) -CTL_PROTO(config_tiny) CTL_PROTO(config_tls) CTL_PROTO(config_xmalloc) CTL_PROTO(opt_abort) @@ -199,7 +198,6 @@ static const ctl_node_t config_node[] = { {NAME("stats"), CTL(config_stats)}, {NAME("sysv"), CTL(config_sysv)}, {NAME("tcache"), CTL(config_tcache)}, - {NAME("tiny"), CTL(config_tiny)}, {NAME("tls"), CTL(config_tls)}, {NAME("xmalloc"), CTL(config_xmalloc)} }; @@ -993,8 +991,6 @@ n##_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, \ int ret; \ bool oldval; \ \ - if (n == false) \ - return (ENOENT); \ READONLY(); \ oldval = n; \ READ(oldval, bool); \ @@ -1115,7 +1111,6 @@ CTL_RO_BOOL_CONFIG_GEN(config_prof_libunwind) CTL_RO_BOOL_CONFIG_GEN(config_stats) CTL_RO_BOOL_CONFIG_GEN(config_sysv) CTL_RO_BOOL_CONFIG_GEN(config_tcache) -CTL_RO_BOOL_CONFIG_GEN(config_tiny) CTL_RO_BOOL_CONFIG_GEN(config_tls) CTL_RO_BOOL_CONFIG_GEN(config_xmalloc) @@ -1203,8 +1198,8 @@ CTL_RO_NL_GEN(arenas_cacheline, CACHELINE, size_t) CTL_RO_NL_GEN(arenas_subpage, SUBPAGE, size_t) CTL_RO_NL_GEN(arenas_pagesize, PAGE_SIZE, size_t) CTL_RO_NL_GEN(arenas_chunksize, chunksize, size_t) -CTL_RO_NL_CGEN(config_tiny, arenas_tspace_min, (1U << LG_TINY_MIN), size_t) -CTL_RO_NL_CGEN(config_tiny, arenas_tspace_max, (qspace_min >> 1), size_t) +CTL_RO_NL_GEN(arenas_tspace_min, TINY_MIN, size_t) +CTL_RO_NL_GEN(arenas_tspace_max, (qspace_min >> 1), size_t) CTL_RO_NL_GEN(arenas_qspace_min, qspace_min, size_t) CTL_RO_NL_GEN(arenas_qspace_max, qspace_max, size_t) CTL_RO_NL_GEN(arenas_cspace_min, cspace_min, size_t) |