From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 695C617C23D for ; Tue, 25 Jun 2024 19:08:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719342482; cv=none; b=GpDsH7Mqw8gwefnndQhEa1/zalwq3mkThtz4ryVLab/3QPBC5m9o2/3DmeDRj9lmIdFpC0uk9P3z5HZiIv+uW4w4iMgYVeediYTNx1DKzK0qfQaeiCrWFrrZ1bIA8reM9ttpYWyXUH0/9zHwqZA8davhpY3BlNMjiLq5yvadbtA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719342482; c=relaxed/simple; bh=DIhCTzqxZbpGNXwBrC+vSh97viUCcux/A1y1v0Bsb5o=; h=Date:To:From:Subject:Message-Id; b=boeVGuJzKMv6bbr8FV69eLDoNMH3X1qDTDTO2trtNmVEWMFmpgkkOs3YIQlxXvCGIH8DJAha9D8c1ZJXHWwIcc4rQUY/jgX8goLagHPKFaCoeY9q/0RTIhRZvTSyVQ9HlGxLADpXYiacnNigydwGWF3NvdBDJOI1HbVv2OcQCPw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=tERp5IIS; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="tERp5IIS" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E387EC32781; Tue, 25 Jun 2024 19:08:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1719342482; bh=DIhCTzqxZbpGNXwBrC+vSh97viUCcux/A1y1v0Bsb5o=; h=Date:To:From:Subject:From; b=tERp5IIS5MeR2hbsheMR0IwTlcvGBckVx75DEWULddvAsH+jmTQSZIoYAV2o/OQOI l2weKn9e5p2BTwj57XzJZrr+XcDd2HVM/3u6079I4WcJARfVeU2dOrVqSXlah48tGx nS242Ikxdju5687YlfYKPfmWpS+sujRemu8ujY24= Date: Tue, 25 Jun 2024 12:08:01 -0700 To: mm-commits@vger.kernel.org,shuah@kernel.org,sj@kernel.org,akpm@linux-foundation.org From: Andrew Morton Subject: + selftests-damon-access_memory-use-user-defined-region-size.patch added to mm-unstable branch Message-Id: <20240625190801.E387EC32781@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The patch titled Subject: selftests/damon/access_memory: use user-defined region size has been added to the -mm mm-unstable branch. Its filename is selftests-damon-access_memory-use-user-defined-region-size.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/selftests-damon-access_memory-use-user-defined-region-size.patch This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: SeongJae Park Subject: selftests/damon/access_memory: use user-defined region size Date: Tue, 25 Jun 2024 11:05:31 -0700 Patch series "selftests/damon: test DAMOS tried regions and {min,max}_nr_regions". This patch series fix a minor issue in a program for DAMON selftest, and implement new functionality selftests for DAMOS tried regions and {min,max}_nr_regions. The test for max_nr_regions also test the recovery from online tuning-caused limit violation, which was fixed by a previous patch [1] titled "mm/damon/core: merge regions aggressively when max_nr_regions is unmet". The first patch fixes a minor problem in the articial memory access pattern generator for tests. Following 3 patches (2-4) implement schemes tried regions test. Then a couple of patches (5-6) implementing static setup based {min,max}_nr_regions functionality test follows. Final two patches (7-8) implement dynamic max_nr_regions update test. [1] https://lore.kernel.org/20240624210650.53960C2BBFC@smtp.kernel.org This patch (of 8): 'access_memory' is an artificial memory access pattern generator for DAMON tests. It creates and accesses memory regions that the user specified the number and size via the command line. However, real access part of the program ignores the user-specified size of each region. Instead, it uses a hard-coded value, 10 MiB. Fix it to use user-defined size. Note that all existing 'access_memory' users are setting the region size as 10 MiB. Hence no real problem has happened so far. Link: https://lkml.kernel.org/r/20240625180538.73134-1-sj@kernel.org Link: https://lkml.kernel.org/r/20240625180538.73134-2-sj@kernel.org Fixes: b5906f5f7359 ("selftests/damon: add a test for update_schemes_tried_regions sysfs command") Signed-off-by: SeongJae Park Cc: Shuah Khan Signed-off-by: Andrew Morton --- tools/testing/selftests/damon/access_memory.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/tools/testing/selftests/damon/access_memory.c~selftests-damon-access_memory-use-user-defined-region-size +++ a/tools/testing/selftests/damon/access_memory.c @@ -35,7 +35,7 @@ int main(int argc, char *argv[]) start_clock = clock(); while ((clock() - start_clock) * 1000 / CLOCKS_PER_SEC < access_time_ms) - memset(regions[i], i, 1024 * 1024 * 10); + memset(regions[i], i, sz_region); } return 0; } _ Patches currently in -mm which might be from sj@kernel.org are mm-damon-core-merge-regions-aggressively-when-max_nr_regions-is-unmet.patch docs-mm-damon-maintainer-profile-introduce-hackermail.patch docs-mm-damon-maintainer-profile-document-damon-community-meetups.patch selftests-damon-access_memory-use-user-defined-region-size.patch selftests-damon-_damon_sysfs-support-schemes_update_tried_regions.patch selftests-damon-implement-a-program-for-even-numbered-memory-regions-access.patch selftests-damon-implement-damos-tried-regions-test.patch selftests-damon-_damon_sysfs-implement-kdamonds-stop-function.patch selftests-damon-implement-test-for-min-max_nr_regions.patch _damon_sysfs-implement-commit-for-online-parameters-update.patch selftests-damon-damon_nr_regions-test-online-tuned-max_nr_regions.patch