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([2620:0:1000:8411:1d95:ca94:1cbe:1409]) by smtp.gmail.com with ESMTPSA id w11-20020a17090aea0b00b00295b93bfb24sm1834779pjy.22.2024.01.31.10.17.10 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 31 Jan 2024 10:17:11 -0800 (PST) Message-ID: Date: Wed, 31 Jan 2024 10:17:09 -0800 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [linux-next:master] [block/mq] 574e7779cf: fio.write_iops -72.9% regression Content-Language: en-US To: kernel test robot Cc: oe-lkp@lists.linux.dev, lkp@intel.com, Linux Memory Management List , Jens Axboe , Oleksandr Natalenko , Johannes Thumshirn , linux-block@vger.kernel.org, ying.huang@intel.com, feng.tang@intel.com, fengwei.yin@intel.com References: <202401312320.a335db14-oliver.sang@intel.com> From: Bart Van Assche In-Reply-To: <202401312320.a335db14-oliver.sang@intel.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspam-User: X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: 6BA80C002C X-Stat-Signature: dh99eia8rxp6exzied8xxmfsibh7yahw X-HE-Tag: 1706725033-935763 X-HE-Meta: U2FsdGVkX1+1HOn0I5kSDUzFkYwZO2OsJ87seM2GCVbC3y8KgN3mn6Xyok+N8WpQOkBRUYJuFB1/dBmIrrjH5wY+DcRXgEtiWtzld78V8A37WAB14ipeI7Q2agZpuMJnLNRWvvHA10iTC8OqCP3EvFIpHo8XgSYHf0AknmQm9lfRenxyE8fcHdUDxGaA66diConytWMvTN3iN8u6Y2dbr7rX+db1HOOIy8kH8Sxxnd8pB840VK0Mi4kH6CM6BOf7oJ3l69rFBuBBit5IrPsPkxw+AQLB182rVIIMbAg7lyIc3K9dVqKL0XOgbJLGcw4Vc0o7/FmY0IxohzqNi4TMa5U4LDv8dJ84NkUBpID4u9OGb1cVfnlVcFl3DD+1hxC8hNGR5yB/HYAwWT1RDAI2h/e3k6fgcg3zoQIk07OHIVwqgc8mL0WONzDrVJGb/ZLCf037yGhW558QGr244qo0cMuTO1xL78S4SZSqFD+gqT8lwLdPWVXIXCTIEVzjw6fnNHx2djumEJHVEDK/Rz88et7CKKtBBNI+Df1g3zsXvO6YYGBpQjRb8NEMiZqZeNXMjITcJ69ImJBeTPp5Io5xtmY9yKVI6js0kiQ+yMi63jOE7yPtNeH2a+t6YVy3PsfoFzyktqBjKm7FdiRZ7mlXgxf7qruZ/ymEFUT8H3orpMZtPlBB5TruL9UI9U/S0OpIAvPR4qPbkYBfM+tAK9vT/L3VPtUicmTfdAvN1M3gZ4146RSSUjjlVLuGvytoN1OEw7nGgJQ0bRuEuVyJQUXyaQ+HuQpQnW5vGDkVE/iaCj3FnBvEvTT4KNN9z19JLmnHlZ11B9ErfKMzSxdwDyOHkodTl+vjjEwjTIods6mDuXX6SHUFnoKTtuTD93Ld0WlRdyQc3nzPjlmUCQLl03cqL/L0DkFy+byl6G2nQ4XQplCLwmU6ffkfeyf2BKQvg0tUs6wZSq8JxUHcrSo1bEr nJRfPtV/ 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000003, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 1/31/24 07:42, kernel test robot wrote: > kernel test robot noticed a -72.9% regression of fio.write_iops on: > > > commit: 574e7779cf583171acb5bf6365047bb0941b387c ("block/mq-deadline: use separate insertion lists") > https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master > > testcase: fio-basic > test machine: 64 threads 2 sockets Intel(R) Xeon(R) Gold 6346 CPU @ 3.10GHz (Ice Lake) with 256G memory > parameters: > > runtime: 300s > disk: 1HDD > fs: xfs > nr_task: 100% > test_size: 128G > rw: write > bs: 4k > ioengine: io_uring > direct: direct > cpufreq_governor: performance The actual test is available in this file: https://download.01.org/0day-ci/archive/20240131/202401312320.a335db14-oliver.sang@intel.com/repro-script I haven't found anything in that file for disabling merging. Merging requests decreases IOPS. Does this perhaps mean that this test is broken? Thanks, Bart.