linux-kernel - [PATCH v2 2/2] selftests: mm: add KSM_MERGE

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Message-ID: <20230728171942.4683-1-ayush.jain3@amd.com>
Date:   Fri, 28 Jul 2023 22:49:42 +0530
From:   Ayush Jain <ayush.jain3@....com>
To:     <akpm@...ux-foundation.org>, <shuah@...nel.org>,
        <pasha.tatashin@...een.com>, <zhansayabagdaulet@...il.com>,
        <tyhicks@...ux.microsoft.com>, <shr@...kernel.io>,
        <raghavendra.kt@....com>
CC:     <linux-mm@...ck.org>, <linux-kselftest@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <Narasimhan.V@....com>,
        <Santosh.Shukla@....com>, Ayush Jain <ayush.jain3@....com>,
        David Hildenbrand <david@...hat.com>
Subject: [PATCH v2 2/2] selftests: mm: add KSM_MERGE_TIME tests

add KSM_MERGE_TIME and KSM_MERGE_TIME_HUGE_PAGES tests with
size of 100.

./run_vmtests.sh -t ksm
-----------------------------
running ./ksm_tests -H -s 100
-----------------------------
Number of normal pages:    0
Number of huge pages:    50
Total size:    100 MiB
Total time:    0.399844662 s
Average speed:  250.097 MiB/s
[PASS]
-----------------------------
running ./ksm_tests -P -s 100
-----------------------------
Total size:    100 MiB
Total time:    0.451931496 s
Average speed:  221.272 MiB/s
[PASS]

Signed-off-by: Ayush Jain <ayush.jain3@....com>
Reviewed-by: David Hildenbrand <david@...hat.com>
---
v1 -> v2
collect Reviewed-by from David

 tools/testing/selftests/mm/run_vmtests.sh | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/testing/selftests/mm/run_vmtests.sh b/tools/testing/selftests/mm/run_vmtests.sh
index 3f26f6e15b2a..ca3738e042c2 100755
--- a/tools/testing/selftests/mm/run_vmtests.sh
+++ b/tools/testing/selftests/mm/run_vmtests.sh
@@ -262,6 +262,10 @@ CATEGORY="madv_populate" run_test ./madv_populate
 
 CATEGORY="memfd_secret" run_test ./memfd_secret
 
+# KSM KSM_MERGE_TIME_HUGE_PAGES test with size of 100
+CATEGORY="ksm" run_test ./ksm_tests -H -s 100
+# KSM KSM_MERGE_TIME test with size of 100
+CATEGORY="ksm" run_test ./ksm_tests -P -s 100
 # KSM MADV_MERGEABLE test with 10 identical pages
 CATEGORY="ksm" run_test ./ksm_tests -M -p 10
 # KSM unmerge test
-- 
2.34.1