diff options
| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2017-11-17 15:31:22 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-11-17 16:10:04 -0800 |
| commit | 64c349f4ae78723248c474531d0cbc524fc5ba77 (patch) | |
| tree | b8284ccb8224f9f4023d5b4c1caa6bc053a2c90f /mm/Makefile | |
| parent | 15df03c87983660a4d1eedb4541778592bd97684 (diff) | |
| download | linux-stable-64c349f4ae78723248c474531d0cbc524fc5ba77.tar.gz linux-stable-64c349f4ae78723248c474531d0cbc524fc5ba77.tar.bz2 linux-stable-64c349f4ae78723248c474531d0cbc524fc5ba77.zip | |
mm: add infrastructure for get_user_pages_fast() benchmarking
Performance of get_user_pages_fast() is critical for some workloads, but
it's tricky to test it directly.
This patch provides /sys/kernel/debug/gup_benchmark that helps with
testing performance of it.
See tools/testing/selftests/vm/gup_benchmark.c for userspace
counterpart.
Link: http://lkml.kernel.org/r/20170908215603.9189-2-kirill.shutemov@linux.intel.com
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thorsten Leemhuis <regressions@leemhuis.info>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Huang Ying <ying.huang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/Makefile')
| -rw-r--r-- | mm/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/Makefile b/mm/Makefile index e7ebd176fb93..e669f02c5a54 100644 --- a/mm/Makefile +++ b/mm/Makefile @@ -80,6 +80,7 @@ obj-$(CONFIG_PAGE_COUNTER) += page_counter.o obj-$(CONFIG_MEMCG) += memcontrol.o vmpressure.o obj-$(CONFIG_MEMCG_SWAP) += swap_cgroup.o obj-$(CONFIG_CGROUP_HUGETLB) += hugetlb_cgroup.o +obj-$(CONFIG_GUP_BENCHMARK) += gup_benchmark.o obj-$(CONFIG_MEMORY_FAILURE) += memory-failure.o obj-$(CONFIG_HWPOISON_INJECT) += hwpoison-inject.o obj-$(CONFIG_DEBUG_KMEMLEAK) += kmemleak.o |