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98d5fcb8d0
glibc/malloc
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Adhemerval Zanella 98d5fcb8d0 malloc: Add Huge Page support for mmap 
With the morecore hook removed, there is not easy way to provide huge
pages support on with glibc allocator without resorting to transparent
huge pages.  And some users and programs do prefer to use the huge pages
directly instead of THP for multiple reasons: no splitting, re-merging
by the VM, no TLB shootdowns for running processes, fast allocation
from the reserve pool, no competition with the rest of the processes
unlike THP, no swapping all, etc.

This patch extends the 'glibc.malloc.hugetlb' tunable: the value
'2' means to use huge pages directly with the system default size,
while a positive value means and specific page size that is matched
against the supported ones by the system.

Currently only memory allocated on sysmalloc() is handled, the arenas
still uses the default system page size.

To test is a new rule is added tests-malloc-hugetlb2, which run the
addes tests with the required GLIBC_TUNABLE setting.  On systems without
a reserved huge pages pool, is just stress the mmap(MAP_HUGETLB)
allocation failure.  To improve test coverage it is required to create
a pool with some allocated pages.

Checked on x86_64-linux-gnu.

Reviewed-by: DJ Delorie <dj@redhat.com>
2021-12-15 17:35:38 -03:00
..
alloc_buffer_alloc_array.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
alloc_buffer_allocate.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
alloc_buffer_copy_bytes.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
alloc_buffer_copy_string.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
alloc_buffer_create_failure.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
arena.c malloc: Add Huge Page support for mmap 2021-12-15 17:35:38 -03:00
Depend added rt to malloc/Depend [BZ #27132] 2021-02-23 10:04:45 +01:00
dynarray_at_failure.c malloc: Sync dynarray with gnulib 2021-02-09 16:57:54 -03:00
dynarray_emplace_enlarge.c malloc: Sync dynarray with gnulib 2021-02-09 16:57:54 -03:00
dynarray_finalize.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
dynarray_resize_clear.c malloc: Sync dynarray with gnulib 2021-02-09 16:57:54 -03:00
dynarray_resize.c malloc: Sync dynarray with gnulib 2021-02-09 16:57:54 -03:00
dynarray-skeleton.c malloc: Sync dynarray with gnulib 2021-02-09 16:57:54 -03:00
dynarray.h malloc: Sync dynarray with gnulib 2021-02-09 16:57:54 -03:00
hooks.c Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
Makefile malloc: Add Huge Page support for mmap 2021-12-15 17:35:38 -03:00
malloc-check.c Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
malloc-debug.c malloc: Fix malloc debug for 2.35 onwards 2021-11-17 21:33:39 +09:00
malloc-internal.h malloc: Add madvise support for Transparent Huge Pages 2021-12-15 17:35:14 -03:00
malloc.c malloc: Add Huge Page support for mmap 2021-12-15 17:35:38 -03:00
malloc.h Add alloc_align attribute to memalign et al 2021-10-21 00:19:20 +01:00
mallocbug.c Reformat malloc to gnu style. 2014-01-02 09:40:10 +01:00
mcheck-impl.c Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
mcheck-init.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
mcheck.c Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
mcheck.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
memusage.c Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
memusage.sh Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
memusagestat.c Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
morecore.c Remove __morecore and __default_morecore 2021-07-22 18:37:57 +05:30
mtrace-impl.c Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
mtrace.c Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
mtrace.pl Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
obstack.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
obstack.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
reallocarray.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
scratch_buffer_dupfree.c malloc: Add scratch_buffer_dupfree 2021-01-05 11:33:16 -03:00
scratch_buffer_grow_preserve.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
scratch_buffer_grow.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
scratch_buffer_set_array_size.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
set-freeres.c elf: Introduce GLRO (dl_libc_freeres), called from __libc_freeres 2021-11-17 12:20:29 +01:00
thread-freeres.c dlfcn: dlerror needs to call free from the base namespace [BZ #24773] 2021-04-21 19:49:51 +02:00
tst-alloc_buffer.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-calloc.c Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
tst-compathooks-off.c Move malloc hooks into a compat DSO 2021-07-22 18:37:59 +05:30
tst-compathooks-on.c Move malloc hooks into a compat DSO 2021-07-22 18:37:59 +05:30
tst-dynarray-at-fail.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-dynarray-fail.c malloc: Sync dynarray with gnulib 2021-02-09 16:57:54 -03:00
tst-dynarray-shared.h malloc: Sync dynarray with gnulib 2021-02-09 16:57:54 -03:00
tst-dynarray.c Disable -Waggressive-loop-optimizations warnings in tst-dynarray.c 2021-10-29 14:40:45 +00:00
tst-free-errno.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-interpose-aux-nothread.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-interpose-aux-thread.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-interpose-aux.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-interpose-aux.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-interpose-nothread.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-interpose-skeleton.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-interpose-static-nothread.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-interpose-static-thread.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-interpose-thread.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-mallinfo2.c tst-mallinfo2.c: Use correct multiple for total variable 2021-05-25 16:47:01 -04:00
tst-malloc_info.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-malloc-backtrace.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-malloc-check.c Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
tst-malloc-fork-deadlock.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-malloc-stats-cancellation.c malloc: Run tst-malloc-stats-cancellation via test-driver.c 2021-04-07 02:35:50 +02:00
tst-malloc-tcache-leak.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-malloc-thread-exit.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-malloc-thread-fail.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-malloc-too-large.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-malloc-usable-tunables.c Initialize tunable list with the GLIBC_TUNABLES environment variable 2016-12-31 23:49:24 +05:30
tst-malloc-usable.c Handle NULL input to malloc_usable_size [BZ #28506] 2021-10-29 14:53:55 +05:30
tst-malloc.c Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
tst-mallocalign1.c Add a generic malloc test for MALLOC_ALIGNMENT 2021-07-09 06:39:30 -07:00
tst-mallocfork2.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-mallocfork3.c posix: Add _Fork [BZ #4737] 2021-06-28 15:55:56 -03:00
tst-mallocfork.c Fix malloc tests build with GCC 10. 2019-06-10 22:12:08 +00:00
tst-mallocstate.c Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
tst-mallopt.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-memalign.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-mtrace.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-mtrace.sh Move malloc hooks into a compat DSO 2021-07-22 18:37:59 +05:30
tst-mxfast.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-obstack.c Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
tst-posix_memalign.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-pvalloc-fortify.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-pvalloc.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-realloc.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-reallocarray.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-safe-linking.c tst-safe-linking: make false positives even more improbable 2021-07-19 08:29:25 +05:30
tst-scratch_buffer.c malloc: Add scratch_buffer_dupfree 2021-01-05 11:33:16 -03:00
tst-tcfree1.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-tcfree2.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-tcfree3.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-trim1.c * malloc/tst-trim1.c: New file. 2007-12-16 22:57:57 +00:00
tst-valloc.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
Versions Move malloc_{g,s}et_state to libc_malloc_debug 2021-07-22 18:38:10 +05:30