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ignore reset_decommits option in the 2.x / dev-slice version

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This commit is contained in:
Daan 2022-01-10 12:10:18 -08:00
parent 0842004b61
commit f317225a70
3 changed files with 9 additions and 10 deletions
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2
include/mimalloc-internal.h
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@ -83,7 +83,7 @@ bool _mi_os_unprotect(void* addr, size_t size);
bool _mi_os_commit(void* addr, size_t size, bool* is_zero, mi_stats_t* stats);
bool _mi_os_decommit(void* p, size_t size, mi_stats_t* stats);
bool _mi_os_reset(void* p, size_t size, mi_stats_t* stats);
bool _mi_os_unreset(void* p, size_t size, bool* is_zero, mi_stats_t* stats);
// bool _mi_os_unreset(void* p, size_t size, bool* is_zero, mi_stats_t* stats);
size_t _mi_os_good_alloc_size(size_t size);
bool _mi_os_has_overcommit(void);

2
src/options.c
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@ -72,7 +72,7 @@ static mi_option_desc_t options[_mi_option_last] =
{ 0, UNINIT, MI_OPTION(reset_decommits) }, // reset decommits memory
#else
{ 1, UNINIT, MI_OPTION(eager_region_commit) },
{ 0, UNINIT, MI_OPTION(reset_decommits) }, // reset uses MADV_FREE/MADV_DONTNEED
{ 0, UNINIT, MI_OPTION(reset_decommits) }, // legacy; ignored now and reset always uses MADV_FREE/MADV_DONTNEED (issue #518)
#endif
{ 0, UNINIT, MI_OPTION(large_os_pages) }, // use large OS pages, use only with eager commit to prevent fragmentation of VMA's
{ 0, UNINIT, MI_OPTION(reserve_huge_os_pages) }, // per 1GiB huge pages

15
src/os.c
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@ -938,9 +938,12 @@ bool _mi_os_decommit(void* addr, size_t size, mi_stats_t* tld_stats) {
return mi_os_commitx(addr, size, false, true /* conservative */, &is_zero, stats);
}
/*
static bool mi_os_commit_unreset(void* addr, size_t size, bool* is_zero, mi_stats_t* stats) {
return mi_os_commitx(addr, size, true, true /* conservative */, is_zero, stats);
return mi_os_commitx(addr, size, true, true // conservative
, is_zero, stats);
}
*/
// Signal to the OS that the address range is no longer in use
// but may be used later again. This will release physical memory
@ -1003,14 +1006,10 @@ static bool mi_os_resetx(void* addr, size_t size, bool reset, mi_stats_t* stats)
bool _mi_os_reset(void* addr, size_t size, mi_stats_t* tld_stats) {
MI_UNUSED(tld_stats);
mi_stats_t* stats = &_mi_stats_main;
if (mi_option_is_enabled(mi_option_reset_decommits)) {
return _mi_os_decommit(addr, size, stats);
}
else {
return mi_os_resetx(addr, size, true, stats);
}
return mi_os_resetx(addr, size, true, stats);
}
/*
bool _mi_os_unreset(void* addr, size_t size, bool* is_zero, mi_stats_t* tld_stats) {
MI_UNUSED(tld_stats);
mi_stats_t* stats = &_mi_stats_main;
@ -1022,7 +1021,7 @@ bool _mi_os_unreset(void* addr, size_t size, bool* is_zero, mi_stats_t* tld_stat
return mi_os_resetx(addr, size, false, stats);
}
}
*/
// Protect a region in memory to be not accessible.
static bool mi_os_protectx(void* addr, size_t size, bool protect) {