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a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1751126676; bh=miTM6A3QV73RUDWnpfCOrpusoocXXvQwskQZDbdPk1E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kYU/71lJwh92l6aB/jcxuGPjkDyUhJHP2n6X2qLYacnBgfxpk8Xd0zT96ptt7ggg9 1IB8R6GUq/YVcrTd+Ij2w9a9VbPK1a50qs9o7bk5ioR6UTZGTnUj2si86Y+PeBx+fE tX2BW/34/4AOSzVFgh/l7DpSUkPkw/3N+M5FxhcWwqIdcVPi+NltK7PBN4pv4drmIN xSNnAp/WKZ7LVqXOdyiJP7HZbWz20/ftu+23XSUtbt5SwrqiNqo2LTq6fJPtIVYRNL U/hNrqf5QrHkY+Sj3GWOzwR4/tiZK1LlsY6TziYppW+D7NxAbfE7UQALuS2uhLxLoB f8rzMNWQaX93g== 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 4/6] selftests/damon/sysfs.py: test monitoring attribute parameters Date: Sat, 28 Jun 2025 09:04:26 -0700 Message-Id: <20250628160428.53115-5-sj@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250628160428.53115-1-sj@kernel.org> References: <20250628160428.53115-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Stat-Signature: kdaj31xrb6xb1tuh6ouf9kra15ar8c56 X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: 757A4100008 X-Rspam-User: X-HE-Tag: 1751126677-495014 X-HE-Meta: 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 2TPrK39M FmNj6GbymMVS4IlJJWW8qvGbf3Lb/kesEhkYYAF3vDzF64wmOsp/jP+5iC/wHe25f4k8v5Jp4Q53PCW1YAmFzYM8ueaBJ/nbf79pWHGTF7xzTf+hmB42eHzGHsAmB/boJdA9ZwSYngpOXlWeYcT+tiK8GmHKBOSuoX9G9xILphV2+dS6HVt8jYFXt21Ozle6syPyH6duQrWnkP2wlHdwbN2VPfceHU7q/xk2S0x8aCwbkQ+c= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Add DAMON sysfs interface functionality tests for DAMON monitoring attribute parameters, including intervals, intervals tuning goals, and min/max number of regions. Signed-off-by: SeongJae Park --- tools/testing/selftests/damon/sysfs.py | 34 ++++++++++++++++++++++++-- 1 file changed, 32 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/damon/sysfs.py b/tools/testing/selftests/damon/sysfs.py index 4ff99db0d247..a721901a880d 100755 --- a/tools/testing/selftests/damon/sysfs.py +++ b/tools/testing/selftests/damon/sysfs.py @@ -20,6 +20,11 @@ def dump_damon_status_dict(pid): except Exception as e: return None, 'json.load fail (%s)' % e +def fail(expectation, status): + print('unexpected %s' % expectation) + print(json.dumps(status, indent=4)) + exit(1) + def main(): kdamonds = _damon_sysfs.Kdamonds( [_damon_sysfs.Kdamond(contexts=[_damon_sysfs.DamonCtx()])]) @@ -34,8 +39,33 @@ def main(): exit(1) if len(status['contexts']) != 1: - print('number of contexts: %d' % len(status['contexts'])) - exit(1) + fail('number of contexts', status) + + ctx = status['contexts'][0] + attrs = ctx['attrs'] + if attrs['sample_interval'] != 5000: + fail('sample interval', status) + if attrs['aggr_interval'] != 100000: + fail('aggr interval', status) + if attrs['ops_update_interval'] != 1000000: + fail('ops updte interval', status) + + if attrs['intervals_goal'] != { + 'access_bp': 0, 'aggrs': 0, + 'min_sample_us': 0, 'max_sample_us': 0}: + fail('intervals goal') + + if attrs['min_nr_regions'] != 10: + fail('min_nr_regions') + if attrs['max_nr_regions'] != 1000: + fail('max_nr_regions') + + if ctx['adaptive_targets'] != []: + fail('adaptive_targets') + + if ctx['schemes'] != []: + fail('schemes') + kdamonds.stop() if __name__ == '__main__': -- 2.39.5