On Tue, 18 Jul 2017 23:58:03 +0800 Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> wrote: > On Fri, 14 Jul 2017 14:45:39 +0200 > "hch@xxxxxx" <hch@xxxxxx> wrote: > > > On Fri, Jul 14, 2017 at 05:56:41PM +0800, Jonathan Cameron wrote: > > > Just wondering if you had any thoughts on how we can proceed with tracking > > > down this regression? > > > > > > I'm not familiar enough with the multiqueue code to really know where > > > to start. > > > > > > If there are any other tests that would be of use, let us know. > > > > Can you send the blktrace and perf output for each of the runs? > > > > Thanks! > > Hi > > Sorry for the delay, For perf what in particular would be of use? Thanks, Jonathan > > blktrace for now (or at least the btt output based on blktrace). > All runs are 1 minute of fio with reads and iodepth of 2048 as > before. Just the summaries to keep this compact. Also 6 disks > were running but results just presented for first one. > > mq disabled, noop scheduler > > ==================== All Devices ==================== > > ALL MIN AVG MAX N > --------------- ------------- ------------- ------------- ----------- > > Q2Q 0.000003960 0.000008760 0.016291960 6849306 > Q2G 0.000000780 0.000001547 0.011354860 1420699 > G2I 0.000000660 0.000000975 0.011092540 1420699 > Q2M 0.000000340 0.000000431 0.003383260 5428608 > I2D 0.000000440 0.000196038 0.023731660 1420699 > M2D 0.000000480 0.001475398 0.023726860 5428608 > D2C 0.000022420 0.002887338 0.026416340 6849307 > Q2C 0.000025360 0.004098233 0.035045140 6849307 > > ==================== Device Overhead ==================== > > DEV | Q2G G2I Q2M I2D D2C > ---------- | --------- --------- --------- --------- --------- > ( 8, 0) | 0.0078% 0.0049% 0.0083% 0.9922% 70.4532% > ---------- | --------- --------- --------- --------- --------- > Overall | 0.0078% 0.0049% 0.0083% 0.9922% 70.4532% > > ==================== Device Merge Information ==================== > > DEV | #Q #D Ratio | BLKmin BLKavg BLKmax Total > ---------- | -------- -------- ------- | -------- -------- -------- -------- > ( 8, 0) | 6849307 1420699 4.8 | 8 38 256 54794456 > > ==================== Device Q2Q Seek Information ==================== > > DEV | NSEEKS MEAN MEDIAN | MODE > ---------- | --------------- --------------- --------------- | --------------- > ( 8, 0) | 6849307 0.0 0 | 0(6849307) > ---------- | --------------- --------------- --------------- | --------------- > Overall | NSEEKS MEAN MEDIAN | MODE > Average | 6849307 0.0 0 | 0(6849307) > > ==================== Device D2D Seek Information ==================== > > DEV | NSEEKS MEAN MEDIAN | MODE > ---------- | --------------- --------------- --------------- | --------------- > ( 8, 0) | 1420699 0.0 0 | 0(1420699) > ---------- | --------------- --------------- --------------- | --------------- > Overall | NSEEKS MEAN MEDIAN | MODE > Average | 1420699 0.0 0 | 0(1420699) > > ==================== Plug Information ==================== > > DEV | # Plugs # Timer Us | % Time Q Plugged > ---------- | ---------- ---------- | ---------------- > ( 8, 0) | 1420699( 0) | 2.231949107% > > DEV | IOs/Unp IOs/Unp(to) > ---------- | ---------- ---------- > ( 8, 0) | 1.0 0.0 > ---------- | ---------- ---------- > Overall | IOs/Unp IOs/Unp(to) > Average | 1.0 0.0 > > ==================== Active Requests At Q Information ==================== > > DEV | Avg Reqs @ Q > ---------- | ------------- > ( 8, 0) | 5.9 > > ==================== I/O Active Period Information ==================== > > DEV | # Live Avg. Act Avg. !Act % Live > ---------- | ---------- ------------- ------------- ------ > ( 8, 0) | 340 0.175645918 0.001273008 99.28 > ---------- | ---------- ------------- ------------- ------ > Total Sys | 340 0.175645918 0.001273008 99.28 > > # Total System > # Total System : q activity > 0.145330280 0.0 > 0.145330280 0.4 > 60.145690780 0.4 > 60.145690780 0.0 > > # Total System : c activity > 0.145450660 0.5 > 0.145450660 0.9 > 60.151161760 0.9 > 60.151161760 0.5 > > > MQ none scheduler > > ==================== All Devices ==================== > > ALL MIN AVG MAX N > --------------- ------------- ------------- ------------- ----------- > > Q2Q 0.000004000 0.000010185 0.011803940 5890750 > Q2G 0.000000320 0.000000763 0.011078580 1831198 > G2I 0.000001080 0.000001682 0.010839860 1831198 > Q2M 0.000000340 0.000000484 0.008391040 4059553 > I2D 0.000000560 0.000087068 0.014350600 1831198 > M2D 0.000000740 0.000874582 0.014343840 4059553 > D2C 0.000045440 0.001720173 0.022475360 5890751 > Q2C 0.000047940 0.002351043 0.027917120 5890751 > > ==================== Device Overhead ==================== > > DEV | Q2G G2I Q2M I2D D2C > ---------- | --------- --------- --------- --------- --------- > ( 8, 0) | 0.0101% 0.0222% 0.0142% 1.1512% 73.1664% > ---------- | --------- --------- --------- --------- --------- > Overall | 0.0101% 0.0222% 0.0142% 1.1512% 73.1664% > > ==================== Device Merge Information ==================== > > DEV | #Q #D Ratio | BLKmin BLKavg BLKmax Total > ---------- | -------- -------- ------- | -------- -------- -------- -------- > ( 8, 0) | 6098099 1831198 3.3 | 8 25 256 47126008 > > ==================== Device Q2Q Seek Information ==================== > > DEV | NSEEKS MEAN MEDIAN | MODE > ---------- | --------------- --------------- --------------- | --------------- > ( 8, 0) | 5890751 0.0 0 | 0(5890751) > ---------- | --------------- --------------- --------------- | --------------- > Overall | NSEEKS MEAN MEDIAN | MODE > Average | 5890751 0.0 0 | 0(5890751) > > ==================== Device D2D Seek Information ==================== > > DEV | NSEEKS MEAN MEDIAN | MODE > ---------- | --------------- --------------- --------------- | --------------- > ( 8, 0) | 1831198 14.9 0 | 0(1788470) > ---------- | --------------- --------------- --------------- | --------------- > Overall | NSEEKS MEAN MEDIAN | MODE > Average | 1831198 14.9 0 | 0(1788470) > > ==================== Plug Information ==================== > > DEV | # Plugs # Timer Us | % Time Q Plugged > ---------- | ---------- ---------- | ---------------- > ( 8, 0) | 0( 1831198) | 1.413429756% > > DEV | IOs/Unp IOs/Unp(to) > ---------- | ---------- ---------- > ( 8, 0) | 0.0 1.0 > ---------- | ---------- ---------- > Overall | IOs/Unp IOs/Unp(to) > Average | 0.0 1.0 > > ==================== Active Requests At Q Information ==================== > > DEV | Avg Reqs @ Q > ---------- | ------------- > ( 8, 0) | 103313.4 > > ==================== I/O Active Period Information ==================== > > DEV | # Live Avg. Act Avg. !Act % Live > ---------- | ---------- ------------- ------------- ------ > ( 8, 0) | 3524 0.016706167 0.000374821 97.81 > ---------- | ---------- ------------- ------------- ------ > Total Sys | 3524 0.016706167 0.000374821 97.81 > > # Total System > # Total System : q activity > 0.192011040 0.0 > 0.192011040 0.4 > 60.191890980 0.4 > 60.191890980 0.0 > > # Total System : c activity > 0.192155040 0.5 > 0.192155040 0.9 > 60.193025700 0.9 > 60.193025700 0.5 > > mq-deadline > > ==================== All Devices ==================== > > ALL MIN AVG MAX N > --------------- ------------- ------------- ------------- ----------- > > Q2Q 0.000004280 0.000021677 0.011974760 2767943 > Q2G 0.000000440 0.000000624 0.004582540 1784446 > G2I 0.000001060 0.000011345 0.010930560 1784446 > Q2M 0.000000400 0.000000497 0.000384020 983498 > I2D 0.000000840 0.005639927 1.439620540 1784446 > M2D 0.000001500 0.010220524 1.180956080 983498 > D2C 0.000062460 0.001896701 0.013208260 2767944 > Q2C 0.000066940 0.009172085 1.441107160 2767944 > > ==================== Device Overhead ==================== > > DEV | Q2G G2I Q2M I2D D2C > ---------- | --------- --------- --------- --------- --------- > ( 8, 0) | 0.0044% 0.0797% 0.0019% 39.6416% 20.6791% > ---------- | --------- --------- --------- --------- --------- > Overall | 0.0044% 0.0797% 0.0019% 39.6416% 20.6791% > > ==================== Device Merge Information ==================== > > DEV | #Q #D Ratio | BLKmin BLKavg BLKmax Total > ---------- | -------- -------- ------- | -------- -------- -------- -------- > ( 8, 0) | 6224597 1784446 3.5 | 8 12 256 22143552 > > ==================== Device Q2Q Seek Information ==================== > > DEV | NSEEKS MEAN MEDIAN | MODE > ---------- | --------------- --------------- --------------- | --------------- > ( 8, 0) | 2767944 0.0 0 | 0(2767944) > ---------- | --------------- --------------- --------------- | --------------- > Overall | NSEEKS MEAN MEDIAN | MODE > Average | 2767944 0.0 0 | 0(2767944) > > ==================== Device D2D Seek Information ==================== > > DEV | NSEEKS MEAN MEDIAN | MODE > ---------- | --------------- --------------- --------------- | --------------- > ( 8, 0) | 1784446 358.3 0 | 0(1549194) > ---------- | --------------- --------------- --------------- | --------------- > Overall | NSEEKS MEAN MEDIAN | MODE > Average | 1784446 358.3 0 | 0(1549194) > > ==================== Plug Information ==================== > > DEV | # Plugs # Timer Us | % Time Q Plugged > ---------- | ---------- ---------- | ---------------- > ( 8, 0) | 0( 1784446) | 1.244944150% > > DEV | IOs/Unp IOs/Unp(to) > ---------- | ---------- ---------- > ( 8, 0) | 0.0 1.0 > ---------- | ---------- ---------- > Overall | IOs/Unp IOs/Unp(to) > Average | 0.0 1.0 > > ==================== Active Requests At Q Information ==================== > > DEV | Avg Reqs @ Q > ---------- | ------------- > ( 8, 0) | 1731603.5 > > ==================== I/O Active Period Information ==================== > > DEV | # Live Avg. Act Avg. !Act % Live > ---------- | ---------- ------------- ------------- ------ > ( 8, 0) | 554 0.108154299 0.000462375 99.58 > ---------- | ---------- ------------- ------------- ------ > Total Sys | 554 0.108154299 0.000462375 99.58 > > # Total System > # Total System : q activity > 0.167375140 0.0 > 0.167375140 0.4 > 60.167642920 0.4 > 60.167642920 0.0 > > # Total System : c activity > 0.167503100 0.5 > 0.167503100 0.9 > 60.173175400 0.9 > 60.173175400 0.5 > > Thanks > > Jonathan > > _______________________________________________ > linuxarm mailing list > linuxarm@xxxxxxxxxx > http://rnd-openeuler.huawei.com/mailman/listinfo/linuxarm
