== sanity test 398c: run fio to test AIO ================= 19:33:26 (1786404806) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.814525 s, 51.5 MB/s osc.lustre-OST0000-osc-ffff903e8957a800.rpc_stats=clear writing 40M to OST0 by fio with 4 jobs... rand-write: (g=0): rw=randwrite, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=16 ... fio-3.19 Starting 4 processes rand-write: (groupid=0, jobs=1): err= 0: pid=144843: Mon Aug 10 19:36:54 2026 write: IOPS=13, BW=52.2KiB/s (53.5kB/s)(10.0MiB/196088msec); 0 zone resets slat (usec): min=38, max=25580, avg=380.46, stdev=1324.83 clat (msec): min=112, max=2732, avg=1224.55, stdev=373.63 lat (msec): min=112, max=2732, avg=1224.93, stdev=373.60 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 726], 10.00th=[ 802], 20.00th=[ 919], | 30.00th=[ 995], 40.00th=[ 1099], 50.00th=[ 1183], 60.00th=[ 1284], | 70.00th=[ 1385], 80.00th=[ 1485], 90.00th=[ 1703], 95.00th=[ 1871], | 99.00th=[ 2366], 99.50th=[ 2534], 99.90th=[ 2702], 99.95th=[ 2735], | 99.99th=[ 2735] bw ( KiB/s): min= 7, max= 142, per=24.91%, avg=51.81, stdev=25.34, samples=386 iops : min= 1, max= 35, avg=12.40, stdev= 6.37, samples=386 lat (msec) : 250=0.43%, 500=0.94%, 750=4.92%, 1000=23.83%, 2000=66.45% lat (msec) : >=2000=3.44% cpu : usr=0.04%, sys=0.29%, ctx=1941, majf=0, minf=8 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-write: (groupid=0, jobs=1): err= 0: pid=144844: Mon Aug 10 19:36:54 2026 write: IOPS=13, BW=52.2KiB/s (53.4kB/s)(10.0MiB/196304msec); 0 zone resets slat (usec): min=35, max=26799, avg=406.62, stdev=1396.36 clat (msec): min=161, max=2633, avg=1225.30, stdev=369.66 lat (msec): min=162, max=2633, avg=1225.71, stdev=369.62 clat percentiles (msec): | 1.00th=[ 372], 5.00th=[ 726], 10.00th=[ 818], 20.00th=[ 919], | 30.00th=[ 1003], 40.00th=[ 1116], 50.00th=[ 1183], 60.00th=[ 1284], | 70.00th=[ 1368], 80.00th=[ 1485], 90.00th=[ 1670], 95.00th=[ 1888], | 99.00th=[ 2467], 99.50th=[ 2567], 99.90th=[ 2635], 99.95th=[ 2635], | 99.99th=[ 2635] bw ( KiB/s): min= 7, max= 127, per=25.75%, avg=53.57, stdev=28.63, samples=374 iops : min= 1, max= 31, avg=12.84, stdev= 7.17, samples=374 lat (msec) : 250=0.66%, 500=0.47%, 750=4.88%, 1000=23.63%, 2000=66.76% lat (msec) : >=2000=3.59% cpu : usr=0.04%, sys=0.27%, ctx=1959, majf=0, minf=9 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-write: (groupid=0, jobs=1): err= 0: pid=144845: Mon Aug 10 19:36:54 2026 write: IOPS=13, BW=52.2KiB/s (53.4kB/s)(10.0MiB/196309msec); 0 zone resets slat (usec): min=35, max=31554, avg=384.47, stdev=1438.86 clat (msec): min=276, max=2703, avg=1225.69, stdev=363.92 lat (msec): min=276, max=2703, avg=1226.08, stdev=363.90 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 726], 10.00th=[ 835], 20.00th=[ 919], | 30.00th=[ 1003], 40.00th=[ 1099], 50.00th=[ 1183], 60.00th=[ 1284], | 70.00th=[ 1385], 80.00th=[ 1485], 90.00th=[ 1687], 95.00th=[ 1854], | 99.00th=[ 2333], 99.50th=[ 2500], 99.90th=[ 2702], 99.95th=[ 2702], | 99.99th=[ 2702] bw ( KiB/s): min= 7, max= 128, per=25.89%, avg=53.85, stdev=27.13, samples=372 iops : min= 1, max= 32, avg=12.91, stdev= 6.82, samples=372 lat (msec) : 500=1.37%, 750=4.77%, 1000=23.28%, 2000=67.50%, >=2000=3.09% cpu : usr=0.04%, sys=0.27%, ctx=2006, majf=0, minf=8 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-write: (groupid=0, jobs=1): err= 0: pid=144846: Mon Aug 10 19:36:54 2026 write: IOPS=13, BW=52.2KiB/s (53.4kB/s)(10.0MiB/196198msec); 0 zone resets slat (usec): min=37, max=21659, avg=405.46, stdev=1305.90 clat (msec): min=225, max=2667, avg=1224.48, stdev=368.73 lat (msec): min=226, max=2667, avg=1224.89, stdev=368.76 clat percentiles (msec): | 1.00th=[ 575], 5.00th=[ 709], 10.00th=[ 802], 20.00th=[ 919], | 30.00th=[ 1011], 40.00th=[ 1099], 50.00th=[ 1200], 60.00th=[ 1284], | 70.00th=[ 1385], 80.00th=[ 1485], 90.00th=[ 1687], 95.00th=[ 1838], | 99.00th=[ 2333], 99.50th=[ 2433], 99.90th=[ 2635], 99.95th=[ 2668], | 99.99th=[ 2668] bw ( KiB/s): min= 7, max= 128, per=26.32%, avg=54.74, stdev=27.76, samples=366 iops : min= 1, max= 32, avg=13.14, stdev= 6.95, samples=366 lat (msec) : 250=0.62%, 500=0.12%, 750=6.60%, 1000=22.11%, 2000=66.91% lat (msec) : >=2000=3.63% cpu : usr=0.05%, sys=0.27%, ctx=2067, majf=0, minf=9 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): WRITE: bw=209KiB/s (214kB/s), 52.2KiB/s-52.2KiB/s (53.4kB/s-53.5kB/s), io=40.0MiB (41.9MB), run=196088-196309msec mix rw 40M to OST0 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=144886: Mon Aug 10 19:39:34 2026 read: IOPS=8, BW=34.2KiB/s (34.0kB/s)(5048KiB/147799msec) slat (msec): min=3, max=124, avg=18.97, stdev=11.13 clat (msec): min=19, max=1411, avg=570.32, stdev=196.01 lat (msec): min=32, max=1453, avg=589.30, stdev=199.11 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 296], 10.00th=[ 351], 20.00th=[ 418], | 30.00th=[ 460], 40.00th=[ 498], 50.00th=[ 542], 60.00th=[ 592], | 70.00th=[ 642], 80.00th=[ 718], 90.00th=[ 827], 95.00th=[ 944], | 99.00th=[ 1183], 99.50th=[ 1267], 99.90th=[ 1368], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 7, max= 103, per=25.72%, avg=34.72, stdev=19.45, samples=283 iops : min= 1, max= 25, avg= 8.14, stdev= 4.88, samples=283 write: IOPS=8, BW=35.1KiB/s (35.0kB/s)(5192KiB/147799msec); 0 zone resets slat (usec): min=38, max=23812, avg=502.09, stdev=1501.23 clat (msec): min=364, max=2856, avg=1242.35, stdev=440.67 lat (msec): min=364, max=2856, avg=1242.86, stdev=440.70 clat percentiles (msec): | 1.00th=[ 485], 5.00th=[ 642], 10.00th=[ 735], 20.00th=[ 852], | 30.00th=[ 961], 40.00th=[ 1083], 50.00th=[ 1183], 60.00th=[ 1301], | 70.00th=[ 1418], 80.00th=[ 1586], 90.00th=[ 1888], 95.00th=[ 2089], | 99.00th=[ 2433], 99.50th=[ 2500], 99.90th=[ 2769], 99.95th=[ 2869], | 99.99th=[ 2869] bw ( KiB/s): min= 7, max= 103, per=24.87%, avg=35.07, stdev=18.60, samples=288 iops : min= 1, max= 25, avg= 8.22, stdev= 4.68, samples=288 lat (msec) : 20=0.04%, 50=0.08%, 100=0.20%, 250=0.82%, 500=19.41% lat (msec) : 750=25.74%, 1000=18.52%, 2000=31.68%, >=2000=3.52% cpu : usr=0.09%, sys=0.62%, ctx=4059, majf=0, minf=12 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1262,1298,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144887: Mon Aug 10 19:39:34 2026 read: IOPS=8, BW=33.7KiB/s (34.5kB/s)(4976KiB/147680msec) slat (usec): min=88, max=71249, avg=18892.47, stdev=10507.43 clat (msec): min=14, max=1397, avg=579.03, stdev=206.54 lat (msec): min=25, max=1432, avg=597.93, stdev=209.29 clat percentiles (msec): | 1.00th=[ 205], 5.00th=[ 305], 10.00th=[ 355], 20.00th=[ 409], | 30.00th=[ 456], 40.00th=[ 502], 50.00th=[ 542], 60.00th=[ 600], | 70.00th=[ 659], 80.00th=[ 743], 90.00th=[ 860], 95.00th=[ 961], | 99.00th=[ 1183], 99.50th=[ 1318], 99.90th=[ 1385], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 7, max= 119, per=25.22%, avg=34.05, stdev=20.28, samples=284 iops : min= 1, max= 29, avg= 7.97, stdev= 5.08, samples=284 write: IOPS=8, BW=35.6KiB/s (36.5kB/s)(5264KiB/147680msec); 0 zone resets slat (usec): min=38, max=29970, avg=496.02, stdev=1764.56 clat (msec): min=346, max=2854, avg=1228.69, stdev=440.93 lat (msec): min=346, max=2854, avg=1229.19, stdev=441.03 clat percentiles (msec): | 1.00th=[ 472], 5.00th=[ 634], 10.00th=[ 735], 20.00th=[ 860], | 30.00th=[ 953], 40.00th=[ 1053], 50.00th=[ 1167], 60.00th=[ 1267], | 70.00th=[ 1385], 80.00th=[ 1552], 90.00th=[ 1854], 95.00th=[ 2123], | 99.00th=[ 2433], 99.50th=[ 2567], 99.90th=[ 2836], 99.95th=[ 2869], | 99.99th=[ 2869] bw ( KiB/s): min= 7, max= 111, per=25.18%, avg=35.50, stdev=19.32, samples=288 iops : min= 1, max= 27, avg= 8.33, stdev= 4.85, samples=288 lat (msec) : 20=0.08%, 50=0.04%, 100=0.16%, 250=0.90%, 500=19.10% lat (msec) : 750=24.73%, 1000=20.23%, 2000=31.21%, >=2000=3.55% cpu : usr=0.09%, sys=0.65%, ctx=4237, majf=0, minf=14 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1244,1316,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144888: Mon Aug 10 19:39:34 2026 read: IOPS=8, BW=33.7KiB/s (34.5kB/s)(4984KiB/147903msec) slat (usec): min=3031, max=74900, avg=19332.42, stdev=10726.07 clat (msec): min=16, max=1368, avg=580.57, stdev=206.29 lat (msec): min=23, max=1405, avg=599.91, stdev=209.17 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 296], 10.00th=[ 351], 20.00th=[ 418], | 30.00th=[ 460], 40.00th=[ 502], 50.00th=[ 550], 60.00th=[ 609], | 70.00th=[ 667], 80.00th=[ 726], 90.00th=[ 860], 95.00th=[ 969], | 99.00th=[ 1234], 99.50th=[ 1284], 99.90th=[ 1368], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min= 7, max= 96, per=25.57%, avg=34.52, stdev=18.16, samples=281 iops : min= 1, max= 24, avg= 8.09, stdev= 4.60, samples=281 write: IOPS=8, BW=35.5KiB/s (36.4kB/s)(5256KiB/147903msec); 0 zone resets slat (usec): min=42, max=36506, avg=460.25, stdev=1514.98 clat (msec): min=285, max=2876, avg=1227.29, stdev=447.69 lat (msec): min=291, max=2877, avg=1227.75, stdev=447.66 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 609], 10.00th=[ 709], 20.00th=[ 852], | 30.00th=[ 953], 40.00th=[ 1053], 50.00th=[ 1167], 60.00th=[ 1284], | 70.00th=[ 1385], 80.00th=[ 1586], 90.00th=[ 1854], 95.00th=[ 2140], | 99.00th=[ 2366], 99.50th=[ 2500], 99.90th=[ 2836], 99.95th=[ 2869], | 99.99th=[ 2869] bw ( KiB/s): min= 7, max= 119, per=25.43%, avg=35.85, stdev=19.84, samples=284 iops : min= 1, max= 29, avg= 8.42, stdev= 4.95, samples=284 lat (msec) : 20=0.04%, 50=0.04%, 100=0.12%, 250=0.90%, 500=19.26% lat (msec) : 750=25.62%, 1000=19.06%, 2000=31.21%, >=2000=3.75% cpu : usr=0.07%, sys=0.63%, ctx=4214, majf=0, minf=12 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1246,1314,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144889: Mon Aug 10 19:39:34 2026 read: IOPS=8, BW=34.4KiB/s (35.2kB/s)(5060KiB/147099msec) slat (usec): min=2936, max=93361, avg=18805.16, stdev=10700.03 clat (msec): min=18, max=1414, avg=563.76, stdev=198.54 lat (msec): min=26, max=1441, avg=582.58, stdev=201.66 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 296], 10.00th=[ 342], 20.00th=[ 405], | 30.00th=[ 439], 40.00th=[ 489], 50.00th=[ 531], 60.00th=[ 575], | 70.00th=[ 642], 80.00th=[ 726], 90.00th=[ 827], 95.00th=[ 944], | 99.00th=[ 1116], 99.50th=[ 1250], 99.90th=[ 1318], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 7, max= 104, per=26.17%, avg=35.33, stdev=20.13, samples=280 iops : min= 1, max= 26, avg= 8.28, stdev= 5.09, samples=280 write: IOPS=8, BW=35.2KiB/s (36.1kB/s)(5180KiB/147099msec); 0 zone resets slat (usec): min=40, max=21317, avg=442.97, stdev=1204.99 clat (msec): min=388, max=2815, avg=1242.51, stdev=447.42 lat (msec): min=388, max=2816, avg=1242.95, stdev=447.38 clat percentiles (msec): | 1.00th=[ 485], 5.00th=[ 634], 10.00th=[ 726], 20.00th=[ 877], | 30.00th=[ 961], 40.00th=[ 1062], 50.00th=[ 1167], 60.00th=[ 1284], | 70.00th=[ 1401], 80.00th=[ 1603], 90.00th=[ 1888], 95.00th=[ 2165], | 99.00th=[ 2467], 99.50th=[ 2567], 99.90th=[ 2802], 99.95th=[ 2802], | 99.99th=[ 2802] bw ( KiB/s): min= 7, max= 103, per=25.07%, avg=35.35, stdev=19.74, samples=284 iops : min= 1, max= 25, avg= 8.29, stdev= 4.96, samples=284 lat (msec) : 20=0.04%, 50=0.08%, 100=0.04%, 250=0.90%, 500=20.47% lat (msec) : 750=24.65%, 1000=19.34%, 2000=30.62%, >=2000=3.87% cpu : usr=0.09%, sys=0.61%, ctx=4243, majf=0, minf=13 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1265,1295,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=136KiB/s (139kB/s), 33.7KiB/s-34.4KiB/s (34.5kB/s-35.2kB/s), io=19.6MiB (20.5MB), run=147099-147903msec WRITE: bw=141KiB/s (145kB/s), 35.1KiB/s-35.6KiB/s (35.0kB/s-36.5kB/s), io=20.4MiB (21.4MB), run=147099-147903msec AIO with large block size 40M rand-rw: (g=0): rw=randrw, bs=(R) 40.0MiB-40.0MiB, (W) 40.0MiB-40.0MiB, (T) 40.0MiB-40.0MiB, ioengine=libaio, iodepth=16 fio-3.19 Starting 1 process rand-rw: (groupid=0, jobs=1): err= 0: pid=144915: Mon Aug 10 19:39:48 2026 read: IOPS=1, BW=41.1MiB/s (43.1MB/s)(40.0MiB/973msec) slat (nsec): min=47174k, max=47174k, avg=47173842.00, stdev= 0.00 clat (nsec): min=891694k, max=891694k, avg=891694184.00, stdev= 0.00 lat (nsec): min=938873k, max=938873k, avg=938872911.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 894], 5.00th=[ 894], 10.00th=[ 894], 20.00th=[ 894], | 30.00th=[ 894], 40.00th=[ 894], 50.00th=[ 894], 60.00th=[ 894], | 70.00th=[ 894], 80.00th=[ 894], 90.00th=[ 894], 95.00th=[ 894], | 99.00th=[ 894], 99.50th=[ 894], 99.90th=[ 894], 99.95th=[ 894], | 99.99th=[ 894] lat (msec) : 1000=100.00% cpu : usr=0.00%, sys=1.34%, ctx=6, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=41.1MiB/s (43.1MB/s), 41.1MiB/s-41.1MiB/s (43.1MB/s-43.1MB/s), io=40.0MiB (41.9MB), run=973-973msec debug=trace inode super iotrace malloc cache info ioctl neterror net warning buffs other dentry nettrace page dlmtrace error emerg ha rpctrace vfstrace reada mmap config console quota sec lfsck hsm snapshot layout