From nobody Mon Oct 6 15:12:21 2025 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 177AA221D9E; Sun, 20 Jul 2025 17:16:59 +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=1753031819; cv=none; b=Fg60uX5pERqgorDrvkp6cHYnKfSp0r5snZX7p/W4DlBQpwz4iEEkhHLH3qcyu2Klu3TkFxNwUCe4dIvP+hpp0S0xMc5WrKVWwxHEl5irPtupiHMKmvWANxiHrxwYyfbGDu3ZRy2YZ2BPcoMXbMN90bb+j8M8nfkUXrVgRSMwJ1M= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753031819; c=relaxed/simple; bh=8wvSMyV6CHpOMSi+h6VFlcgrNrlLEQXoEfGY0Ixxzx4=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=Pn9jpbC76FYNqv45btQxPPFhuNSCdXpWCQN7djTgV0wIXllfE9SA2Fbzya1DsR/7tIbtQu2UDAHvnRFNT1L5lqR/GWLoIqrQph0c5mCwLEy1OBeASFlPDdDo+6SJbBdTw12F32r5K0uBQysvlO9OYMjL2RXzwSWgYpw05YIqutk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ksnNqjLw; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="ksnNqjLw" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BBD02C4CEFB; Sun, 20 Jul 2025 17:16:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1753031818; bh=8wvSMyV6CHpOMSi+h6VFlcgrNrlLEQXoEfGY0Ixxzx4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ksnNqjLwmIBv9cprB+iVdxapHXYRWuHIv7lBatBbzqJAR6RM6AdrgVAKxmzKW6x4Z fW42gGK6CTUxsEtYi0Xky7soUz555ekLZ+gRTDqvnqrkXDm+QAJHLCaj9R16A2CwYk n1Glu/83kOe/MbdFwXxcXRY5uBWf2jCLfy/1eAMJaNrKAMqKHLwYJhTCBrIgbNp7IA UUDryw9tzehM2o5YHjVkxvGX/poiaqb+/8zOIhLeLp3aWCHLHPotLSU0YEe4K61uRm Pg9w4l7EY2fmUfyqZyiUUqqUmm2osn93UsKCiAWeOww+rU4va9Fi19dogD19FDzq2S /qR8vqVBB3rzg== From: SeongJae Park To: Andrew Morton Cc: SeongJae Park , Shuah Khan , damon@lists.linux.dev, kernel-team@meta.com, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 02/22] selftests/damon/_damon_sysfs: support DAMOS filters setup Date: Sun, 20 Jul 2025 10:16:32 -0700 Message-Id: <20250720171652.92309-3-sj@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250720171652.92309-1-sj@kernel.org> References: <20250720171652.92309-1-sj@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" _damon_sysfs.py contains code for test-purpose DAMON sysfs interface control. Add support of DAMOS filters setup for more tests. Signed-off-by: SeongJae Park --- tools/testing/selftests/damon/_damon_sysfs.py | 115 +++++++++++++++++- 1 file changed, 111 insertions(+), 4 deletions(-) diff --git a/tools/testing/selftests/damon/_damon_sysfs.py b/tools/testing/= selftests/damon/_damon_sysfs.py index d81aa11e3d32..f853af6ad926 100644 --- a/tools/testing/selftests/damon/_damon_sysfs.py +++ b/tools/testing/selftests/damon/_damon_sysfs.py @@ -201,6 +201,96 @@ class DamosWatermarks: if err is not None: return err =20 +class DamosFilter: + type_ =3D None + matching =3D None + allow =3D None + memcg_path =3D None + addr_start =3D None + addr_end =3D None + target_idx =3D None + min_ =3D None + max_ =3D None + idx =3D None + filters =3D None # owner filters + + def __init__(self, type_=3D'anon', matching=3DFalse, allow=3DFalse, + memcg_path=3D'', addr_start=3D0, addr_end=3D0, target_idx= =3D0, min_=3D0, + max_=3D0): + self.type_ =3D type_ + self.matching =3D matching + self.allow =3D allow + self.memcg_path =3D memcg_path, + self.addr_start =3D addr_start + self.addr_end =3D addr_end + self.target_idx =3D target_idx + self.min_ =3D min_ + self.max_ =3D max_ + + def sysfs_dir(self): + return os.path.join(self.filters.sysfs_dir(), '%d' % self.idx) + + def stage(self): + err =3D write_file(os.path.join(self.sysfs_dir(), 'type'), self.ty= pe_) + if err is not None: + return err + err =3D write_file(os.path.join(self.sysfs_dir(), 'matching'), + self.matching) + if err is not None: + return err + err =3D write_file(os.path.join(self.sysfs_dir(), 'allow'), self.a= llow) + if err is not None: + return err + err =3D write_file(os.path.join(self.sysfs_dir(), 'memcg_path'), + self.memcg_path) + if err is not None: + return err + err =3D write_file(os.path.join(self.sysfs_dir(), 'addr_start'), + self.addr_start) + if err is not None: + return err + err =3D write_file(os.path.join(self.sysfs_dir(), 'addr_end'), + self.addr_end) + if err is not None: + return err + err =3D write_file(os.path.join(self.sysfs_dir(), 'damon_target_id= x'), + self.target_idx) + if err is not None: + return err + err =3D write_file(os.path.join(self.sysfs_dir(), 'min'), self.min= _) + if err is not None: + return err + err =3D write_file(os.path.join(self.sysfs_dir(), 'max'), self.max= _) + if err is not None: + return err + return None + +class DamosFilters: + name =3D None + filters =3D None + scheme =3D None # owner scheme + + def __init__(self, name, filters=3D[]): + self.name =3D name + self.filters =3D filters + for idx, filter_ in enumerate(self.filters): + filter_.idx =3D idx + filter_.filters =3D self + + def sysfs_dir(self): + return os.path.join(self.scheme.sysfs_dir(), self.name) + + def stage(self): + err =3D write_file(os.path.join(self.sysfs_dir(), 'nr_filters'), + len(self.filters)) + if err is not None: + return err + for filter_ in self.filters: + err =3D filter_.stage() + if err is not None: + return err + return None + class DamosStats: nr_tried =3D None sz_tried =3D None @@ -227,8 +317,10 @@ class Damos: access_pattern =3D None quota =3D None watermarks =3D None + core_filters =3D None + ops_filters =3D None + filters =3D None apply_interval_us =3D None - # todo: Support watermarks, stats idx =3D None context =3D None tried_bytes =3D None @@ -237,6 +329,7 @@ class Damos: =20 def __init__(self, action=3D'stat', access_pattern=3DDamosAccessPatter= n(), quota=3DDamosQuota(), watermarks=3DDamosWatermarks(), + core_filters=3D[], ops_filters=3D[], filters=3D[], apply_interval_us=3D0): self.action =3D action self.access_pattern =3D access_pattern @@ -245,6 +338,16 @@ class Damos: self.quota.scheme =3D self self.watermarks =3D watermarks self.watermarks.scheme =3D self + + self.core_filters =3D DamosFilters(name=3D'core_filters', + filters=3Dcore_filters) + self.core_filters.scheme =3D self + self.ops_filters =3D DamosFilters(name=3D'ops_filters', + filters=3Dops_filters) + self.ops_filters.scheme =3D self + self.filters =3D DamosFilters(name=3D'filters', filters=3Dfilters) + self.filters.scheme =3D self + self.apply_interval_us =3D apply_interval_us =20 def sysfs_dir(self): @@ -271,9 +374,13 @@ class Damos: if err is not None: return err =20 - # disable filters - err =3D write_file( - os.path.join(self.sysfs_dir(), 'filters', 'nr_filters'), '= 0') + err =3D self.core_filters.stage() + if err is not None: + return err + err =3D self.ops_filters.stage() + if err is not None: + return err + err =3D self.filters.stage() if err is not None: return err =20 --=20 2.39.5