On 20.06.24 03:53, Huang, Ying wrote:
Barry Song <21cnbao@xxxxxxxxx> writes:
From: Barry Song <v-songbaohua@xxxxxxxx>
Both Ryan and Chris have been utilizing the small test program to aid
in debugging and identifying issues with swap entry allocation. While
a real or intricate workload might be more suitable for assessing the
correctness and effectiveness of the swap allocation policy, a small
test program presents a simpler means of understanding the problem and
initially verifying the improvements being made.
Let's endeavor to integrate it into the self-test suite. Although it
presently only accommodates 64KB and 4KB, I'm optimistic that we can
expand its capabilities to support multiple sizes and simulate more
complex systems in the future as required.
IIUC, this is a performance test program instead of functionality test
program. Does it match the purpose of the kernel selftest?
We do have the similar tests at least for ksm (ksm_tests.c) and probably
others:
$ git grep -l clock_gettime
ksm_tests.c
migration.c
mremap_test.c
transhuge-stress.c
I recall that gup_test.c also measures performance things.
--
Cheers,
David / dhildenb
