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| author | Zhansaya Bagdauletkyzy <zhansayabagdaulet@gmail.com> | 2021-09-02 15:00:45 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-09-03 09:58:18 -0700 |
| commit | 39619982c5be6ed57390f17aabee6bc11e4af37e (patch) | |
| tree | e102b59dc42a4811f7dc207e51284221b920689e /tools/io_uring/io_uring-bench.c | |
| parent | a40c80e348fac4ecff8abcc3fae31e2e84c055d6 (diff) | |
selftests: vm: add KSM zero page merging test
Add check_ksm_zero_page_merge() function to test that empty pages are
being handled properly. For this, several zero pages are allocated and
merged using madvise. If use_zero_pages is enabled, the pages must be
shared with the special kernel zero pages; otherwise, they are merged as
usual duplicate pages. The test is run as follows: ./ksm_tests -Z
Link: https://lkml.kernel.org/r/6d0caab00d4bdccf5e3791cb95cf6dfd5eb85e45.1626252248.git.zhansayabagdaulet@gmail.com
Signed-off-by: Zhansaya Bagdauletkyzy <zhansayabagdaulet@gmail.com>
Reviewed-by: Pavel Tatashin <pasha.tatashin@soleen.com>
Reviewed-by: Tyler Hicks <tyhicks@linux.microsoft.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'tools/io_uring/io_uring-bench.c')
0 files changed, 0 insertions, 0 deletions