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 57A3F1CFBC; Sun, 20 Jul 2025 17:17:00 +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=1753031820; cv=none; b=VKuScW9/7cfNRimwg755TPoR08xIpKEHDO0nxEXbSaMWdUEuXAtXCx6YTGhXCIUOQSWXnSHAeM+iDirLgVpxm7ul8VeKwYQTZJXbqEqzpukATYnUKfPPWHZbD+w7SKws0LP4DgNzrB1fZLmyspbLttVJsCXwQZGcuU1vElLrfDw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753031820; c=relaxed/simple; bh=BVyAzLCX6KSwysObZ8ul7hmIo/e9lFQwzRApis7bbiI=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=gb50s3mRJPwCoK7yQKey094/oZtQRzywNwQnNn475JEdVi2bdhat5hu8pRXN/SHieKjIPQOp1k9CdgTpRD0ys/xZRY1xDp56D34KR3BJOidKtO00a+0jaKEWWYTXRCIlHnQGZv8Or3EoQxpGbRny4bXRz6H9bwPv5CEnxhFXnzw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ulFZUcOD; 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="ulFZUcOD" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BA392C4CEEB; Sun, 20 Jul 2025 17:16:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1753031819; bh=BVyAzLCX6KSwysObZ8ul7hmIo/e9lFQwzRApis7bbiI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ulFZUcODLpOMEYtvJpC61dzm4lP1iy1rSRQhLhR0nEwW63Pvw5d3uofFF+LMgYtCS zFrxo2XGaM9YHjZEnffrS6jGX4DAXMLW7F1soW1I3lqNqzX91N3Qz4xuyTY4UfTk5+ RzfXFLHZxDzpCW1GAgRoL35C2b5rCbMfUTc/RB1oe64DwakaIJKj0yVYb3zM76Fp5+ b4cM1cz585DVySH/gGJsFIqlcLKsZx7C3erhl8dlUUC0eXnIE1equ4t7bxnRWy7JvH P9nMtXUFYmHlj/m5JGmZR2+Qr8Wwyz7WqU9zqRT7NJ7of8QiBfhJg9xigc7KqZ+E/y GJS1lI8pFRgvQ== 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 03/22] selftests/damon/_damon_sysfs: support monitoring intervals goal setup Date: Sun, 20 Jul 2025 10:16:33 -0700 Message-Id: <20250720171652.92309-4-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 the monitoring intervals auto-tune goal setup for more tests. Signed-off-by: SeongJae Park --- tools/testing/selftests/damon/_damon_sysfs.py | 43 ++++++++++++++++++- 1 file changed, 42 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/damon/_damon_sysfs.py b/tools/testing/= selftests/damon/_damon_sysfs.py index f853af6ad926..ec6230929d36 100644 --- a/tools/testing/selftests/damon/_damon_sysfs.py +++ b/tools/testing/selftests/damon/_damon_sysfs.py @@ -405,18 +405,56 @@ class DamonTarget: return write_file( os.path.join(self.sysfs_dir(), 'pid_target'), self.pid) =20 +class IntervalsGoal: + access_bp =3D None + aggrs =3D None + min_sample_us =3D None + max_sample_us =3D None + attrs =3D None # owner DamonAttrs + + def __init__(self, access_bp=3D0, aggrs=3D0, min_sample_us=3D0, max_sa= mple_us=3D0): + self.access_bp =3D access_bp + self.aggrs =3D aggrs + self.min_sample_us =3D min_sample_us + self.max_sample_us =3D max_sample_us + + def sysfs_dir(self): + return os.path.join(self.attrs.interval_sysfs_dir(), 'intervals_go= al') + + def stage(self): + err =3D write_file( + os.path.join(self.sysfs_dir(), 'access_bp'), self.access_b= p) + if err is not None: + return err + err =3D write_file(os.path.join(self.sysfs_dir(), 'aggrs'), self.a= ggrs) + if err is not None: + return err + err =3D write_file(os.path.join(self.sysfs_dir(), 'min_sample_us'), + self.min_sample_us) + if err is not None: + return err + err =3D write_file(os.path.join(self.sysfs_dir(), 'max_sample_us'), + self.max_sample_us) + if err is not None: + return err + return None + class DamonAttrs: sample_us =3D None aggr_us =3D None + intervals_goal =3D None update_us =3D None min_nr_regions =3D None max_nr_regions =3D None context =3D None =20 - def __init__(self, sample_us=3D5000, aggr_us=3D100000, update_us=3D100= 0000, + def __init__(self, sample_us=3D5000, aggr_us=3D100000, + intervals_goal=3DIntervalsGoal(), update_us=3D1000000, min_nr_regions=3D10, max_nr_regions=3D1000): self.sample_us =3D sample_us self.aggr_us =3D aggr_us + self.intervals_goal =3D intervals_goal + self.intervals_goal.attrs =3D self self.update_us =3D update_us self.min_nr_regions =3D min_nr_regions self.max_nr_regions =3D max_nr_regions @@ -436,6 +474,9 @@ class DamonAttrs: return err err =3D write_file(os.path.join(self.interval_sysfs_dir(), 'aggr_u= s'), self.aggr_us) + if err is not None: + return err + err =3D self.intervals_goal.stage() if err is not None: return err err =3D write_file(os.path.join(self.interval_sysfs_dir(), 'update= _us'), --=20 2.39.5