== sanity test 398c: run fio to test AIO ================= 21:23:51 (1790731431) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.457761 s, 91.6 MB/s osc.lustre-OST0000-osc-ffff8a318f749800.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=146668: Tue Sep 29 21:26:16 2026 write: IOPS=18, BW=75.5KiB/s (77.3kB/s)(10.0MiB/135673msec); 0 zone resets slat (usec): min=25, max=11052, avg=244.63, stdev=665.41 clat (msec): min=78, max=1540, avg=847.02, stdev=201.59 lat (msec): min=78, max=1540, avg=847.26, stdev=201.60 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 531], 10.00th=[ 625], 20.00th=[ 701], | 30.00th=[ 751], 40.00th=[ 802], 50.00th=[ 852], 60.00th=[ 894], | 70.00th=[ 936], 80.00th=[ 995], 90.00th=[ 1099], 95.00th=[ 1183], | 99.00th=[ 1351], 99.50th=[ 1435], 99.90th=[ 1536], 99.95th=[ 1536], | 99.99th=[ 1536] bw ( KiB/s): min= 15, max= 207, per=25.00%, avg=75.25, stdev=28.17, samples=268 iops : min= 3, max= 51, avg=18.34, stdev= 7.04, samples=268 lat (msec) : 100=0.04%, 250=0.23%, 500=4.10%, 750=25.12%, 1000=50.82% lat (msec) : 2000=19.69% cpu : usr=0.05%, sys=0.28%, ctx=2083, 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=146669: Tue Sep 29 21:26:16 2026 write: IOPS=18, BW=75.4KiB/s (77.3kB/s)(10.0MiB/135732msec); 0 zone resets slat (usec): min=28, max=13002, avg=270.44, stdev=754.70 clat (msec): min=229, max=1533, avg=847.26, stdev=198.36 lat (msec): min=231, max=1542, avg=847.53, stdev=198.38 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 531], 10.00th=[ 609], 20.00th=[ 701], | 30.00th=[ 751], 40.00th=[ 802], 50.00th=[ 844], 60.00th=[ 885], | 70.00th=[ 944], 80.00th=[ 995], 90.00th=[ 1099], 95.00th=[ 1183], | 99.00th=[ 1334], 99.50th=[ 1418], 99.90th=[ 1536], 99.95th=[ 1536], | 99.99th=[ 1536] bw ( KiB/s): min= 16, max= 208, per=24.82%, avg=74.70, stdev=25.51, samples=270 iops : min= 4, max= 52, avg=18.20, stdev= 6.39, samples=270 lat (msec) : 250=0.47%, 500=3.52%, 750=26.25%, 1000=50.20%, 2000=19.57% cpu : usr=0.04%, sys=0.29%, ctx=2153, 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=146670: Tue Sep 29 21:26:16 2026 write: IOPS=18, BW=75.5KiB/s (77.3kB/s)(10.0MiB/135627msec); 0 zone resets slat (usec): min=23, max=18289, avg=268.51, stdev=750.35 clat (msec): min=190, max=1488, avg=846.98, stdev=202.94 lat (msec): min=190, max=1492, avg=847.25, stdev=202.97 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 514], 10.00th=[ 634], 20.00th=[ 701], | 30.00th=[ 751], 40.00th=[ 802], 50.00th=[ 844], 60.00th=[ 885], | 70.00th=[ 936], 80.00th=[ 1011], 90.00th=[ 1116], 95.00th=[ 1183], | 99.00th=[ 1351], 99.50th=[ 1385], 99.90th=[ 1485], 99.95th=[ 1485], | 99.99th=[ 1485] bw ( KiB/s): min= 7, max= 255, per=25.48%, avg=76.70, stdev=30.33, samples=263 iops : min= 1, max= 63, avg=18.70, stdev= 7.58, samples=263 lat (msec) : 250=1.25%, 500=3.71%, 750=24.73%, 1000=49.57%, 2000=20.74% cpu : usr=0.05%, sys=0.28%, ctx=1910, 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=146671: Tue Sep 29 21:26:16 2026 write: IOPS=18, BW=75.5KiB/s (77.3kB/s)(10.0MiB/135712msec); 0 zone resets slat (usec): min=27, max=14230, avg=290.59, stdev=805.86 clat (msec): min=232, max=1539, avg=846.88, stdev=196.11 lat (msec): min=232, max=1542, avg=847.17, stdev=196.11 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 523], 10.00th=[ 617], 20.00th=[ 701], | 30.00th=[ 760], 40.00th=[ 802], 50.00th=[ 844], 60.00th=[ 885], | 70.00th=[ 936], 80.00th=[ 995], 90.00th=[ 1099], 95.00th=[ 1167], | 99.00th=[ 1318], 99.50th=[ 1351], 99.90th=[ 1435], 99.95th=[ 1536], | 99.99th=[ 1536] bw ( KiB/s): min= 7, max= 184, per=24.82%, avg=74.71, stdev=27.50, samples=270 iops : min= 1, max= 46, avg=18.20, stdev= 6.87, samples=270 lat (msec) : 250=0.35%, 500=3.95%, 750=24.49%, 1000=51.60%, 2000=19.61% cpu : usr=0.06%, sys=0.32%, ctx=2417, 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=302KiB/s (309kB/s), 75.4KiB/s-75.5KiB/s (77.3kB/s-77.3kB/s), io=40.0MiB (41.9MB), run=135627-135732msec 7% of I/O are 1-page (PAGE_SIZE=4096), max 50% 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=146700: Tue Sep 29 21:28:02 2026 read: IOPS=12, BW=50.5KiB/s (51.8kB/s)(5048KiB/99861msec) slat (usec): min=2512, max=86377, avg=13466.61, stdev=7007.66 clat (msec): min=23, max=1422, avg=388.47, stdev=110.44 lat (msec): min=29, max=1441, avg=401.95, stdev=111.52 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 249], 10.00th=[ 275], 20.00th=[ 305], | 30.00th=[ 334], 40.00th=[ 359], 50.00th=[ 384], 60.00th=[ 405], | 70.00th=[ 430], 80.00th=[ 464], 90.00th=[ 510], 95.00th=[ 550], | 99.00th=[ 651], 99.50th=[ 709], 99.90th=[ 1250], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 7, max= 119, per=25.26%, avg=50.53, stdev=21.67, samples=196 iops : min= 1, max= 29, avg=12.13, stdev= 5.41, samples=196 write: IOPS=12, BW=51.0KiB/s (53.2kB/s)(5192KiB/99861msec); 0 zone resets slat (usec): min=37, max=22799, avg=337.00, stdev=1060.17 clat (msec): min=133, max=2034, avg=837.78, stdev=226.26 lat (msec): min=134, max=2034, avg=838.12, stdev=226.25 clat percentiles (msec): | 1.00th=[ 259], 5.00th=[ 502], 10.00th=[ 575], 20.00th=[ 659], | 30.00th=[ 718], 40.00th=[ 776], 50.00th=[ 827], 60.00th=[ 885], | 70.00th=[ 944], 80.00th=[ 1020], 90.00th=[ 1116], 95.00th=[ 1200], | 99.00th=[ 1401], 99.50th=[ 1536], 99.90th=[ 2039], 99.95th=[ 2039], | 99.99th=[ 2039] bw ( KiB/s): min= 7, max= 119, per=24.77%, avg=51.77, stdev=19.20, samples=196 iops : min= 1, max= 29, avg=12.43, stdev= 4.83, samples=196 lat (msec) : 50=0.16%, 100=0.23%, 250=2.50%, 500=43.12%, 750=21.21% lat (msec) : 1000=20.78%, 2000=11.88%, >=2000=0.12% cpu : usr=0.14%, sys=0.87%, ctx=5161, 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=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=146701: Tue Sep 29 21:28:02 2026 read: IOPS=12, BW=49.8KiB/s (50.0kB/s)(4976KiB/99931msec) slat (usec): min=2775, max=51191, avg=13247.58, stdev=6770.27 clat (msec): min=14, max=699, avg=384.07, stdev=94.59 lat (msec): min=23, max=709, avg=397.33, stdev=95.83 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 243], 10.00th=[ 271], 20.00th=[ 309], | 30.00th=[ 334], 40.00th=[ 359], 50.00th=[ 384], 60.00th=[ 401], | 70.00th=[ 426], 80.00th=[ 464], 90.00th=[ 502], 95.00th=[ 531], | 99.00th=[ 642], 99.50th=[ 676], 99.90th=[ 693], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 7, max= 111, per=24.77%, avg=49.55, stdev=21.07, samples=197 iops : min= 1, max= 27, avg=11.89, stdev= 5.32, samples=197 write: IOPS=13, BW=52.7KiB/s (53.9kB/s)(5264KiB/99931msec); 0 zone resets slat (usec): min=33, max=16166, avg=399.01, stdev=1192.76 clat (msec): min=132, max=1668, avg=837.63, stdev=226.36 lat (msec): min=132, max=1668, avg=838.04, stdev=226.42 clat percentiles (msec): | 1.00th=[ 239], 5.00th=[ 493], 10.00th=[ 567], 20.00th=[ 651], | 30.00th=[ 718], 40.00th=[ 776], 50.00th=[ 835], 60.00th=[ 894], | 70.00th=[ 953], 80.00th=[ 1028], 90.00th=[ 1133], 95.00th=[ 1217], | 99.00th=[ 1351], 99.50th=[ 1418], 99.90th=[ 1670], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 7, max= 130, per=24.84%, avg=51.91, stdev=20.33, samples=198 iops : min= 1, max= 32, avg=12.47, stdev= 5.13, samples=198 lat (msec) : 20=0.04%, 50=0.12%, 100=0.08%, 250=3.32%, 500=42.85% lat (msec) : 750=20.20%, 1000=20.98%, 2000=12.42% cpu : usr=0.14%, sys=0.83%, ctx=4789, majf=0, minf=15 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=146702: Tue Sep 29 21:28:02 2026 read: IOPS=12, BW=49.9KiB/s (51.1kB/s)(4984KiB/99861msec) slat (usec): min=56, max=58290, avg=13278.06, stdev=6972.77 clat (msec): min=12, max=1661, avg=385.14, stdev=108.06 lat (msec): min=13, max=1670, avg=398.43, stdev=109.15 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 239], 10.00th=[ 271], 20.00th=[ 309], | 30.00th=[ 330], 40.00th=[ 359], 50.00th=[ 384], 60.00th=[ 409], | 70.00th=[ 430], 80.00th=[ 460], 90.00th=[ 502], 95.00th=[ 542], | 99.00th=[ 642], 99.50th=[ 676], 99.90th=[ 1519], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 7, max= 143, per=24.96%, avg=49.93, stdev=22.61, samples=196 iops : min= 1, max= 35, avg=11.98, stdev= 5.66, samples=196 write: IOPS=13, BW=52.6KiB/s (53.9kB/s)(5256KiB/99861msec); 0 zone resets slat (usec): min=31, max=18285, avg=413.80, stdev=1145.56 clat (msec): min=69, max=2297, avg=836.47, stdev=240.82 lat (msec): min=69, max=2297, avg=836.89, stdev=240.83 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 493], 10.00th=[ 550], 20.00th=[ 659], | 30.00th=[ 726], 40.00th=[ 776], 50.00th=[ 827], 60.00th=[ 885], | 70.00th=[ 953], 80.00th=[ 1020], 90.00th=[ 1116], 95.00th=[ 1200], | 99.00th=[ 1435], 99.50th=[ 1804], 99.90th=[ 2140], 99.95th=[ 2299], | 99.99th=[ 2299] bw ( KiB/s): min= 7, max= 143, per=24.88%, avg=51.99, stdev=21.92, samples=197 iops : min= 1, max= 35, avg=12.49, stdev= 5.49, samples=197 lat (msec) : 20=0.08%, 50=0.12%, 100=0.23%, 250=3.40%, 500=42.77% lat (msec) : 750=19.84%, 1000=21.84%, 2000=11.52%, >=2000=0.20% cpu : usr=0.13%, sys=0.81%, ctx=5222, 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=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=146703: Tue Sep 29 21:28:02 2026 read: IOPS=12, BW=50.7KiB/s (51.9kB/s)(5060KiB/99858msec) slat (usec): min=2772, max=56356, avg=13053.70, stdev=6609.63 clat (msec): min=13, max=1026, avg=384.63, stdev=100.34 lat (msec): min=25, max=1057, avg=397.69, stdev=101.78 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 247], 10.00th=[ 271], 20.00th=[ 309], | 30.00th=[ 330], 40.00th=[ 355], 50.00th=[ 376], 60.00th=[ 405], | 70.00th=[ 430], 80.00th=[ 460], 90.00th=[ 510], 95.00th=[ 550], | 99.00th=[ 642], 99.50th=[ 667], 99.90th=[ 1011], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 7, max= 112, per=25.63%, avg=51.26, stdev=21.65, samples=194 iops : min= 1, max= 28, avg=12.31, stdev= 5.44, samples=194 write: IOPS=12, BW=51.9KiB/s (53.1kB/s)(5180KiB/99858msec); 0 zone resets slat (usec): min=36, max=11245, avg=369.12, stdev=834.39 clat (msec): min=132, max=2119, avg=842.90, stdev=234.83 lat (msec): min=132, max=2119, avg=843.27, stdev=234.83 clat percentiles (msec): | 1.00th=[ 251], 5.00th=[ 498], 10.00th=[ 584], 20.00th=[ 659], | 30.00th=[ 718], 40.00th=[ 776], 50.00th=[ 835], 60.00th=[ 885], | 70.00th=[ 953], 80.00th=[ 1028], 90.00th=[ 1116], 95.00th=[ 1200], | 99.00th=[ 1401], 99.50th=[ 1804], 99.90th=[ 2123], 99.95th=[ 2123], | 99.99th=[ 2123] bw ( KiB/s): min= 7, max= 104, per=24.55%, avg=51.30, stdev=18.13, samples=197 iops : min= 1, max= 26, avg=12.32, stdev= 4.58, samples=197 lat (msec) : 20=0.04%, 50=0.12%, 100=0.12%, 250=3.09%, 500=42.70% lat (msec) : 750=20.98%, 1000=20.66%, 2000=12.11%, >=2000=0.20% cpu : usr=0.12%, sys=0.79%, ctx=4876, majf=0, minf=15 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=201KiB/s (206kB/s), 49.8KiB/s-50.7KiB/s (50.0kB/s-51.9kB/s), io=19.6MiB (20.5MB), run=99858-99931msec WRITE: bw=209KiB/s (214kB/s), 51.9KiB/s-52.7KiB/s (53.1kB/s-53.9kB/s), io=20.4MiB (21.4MB), run=99858-99931msec 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=146722: Tue Sep 29 21:28:10 2026 read: IOPS=2, BW=90.1MiB/s (94.5MB/s)(40.0MiB/444msec) slat (nsec): min=32687k, max=32687k, avg=32687420.00, stdev= 0.00 clat (nsec): min=391641k, max=391641k, avg=391641003.00, stdev= 0.00 lat (nsec): min=424333k, max=424333k, avg=424332516.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 393], 10.00th=[ 393], 20.00th=[ 393], | 30.00th=[ 393], 40.00th=[ 393], 50.00th=[ 393], 60.00th=[ 393], | 70.00th=[ 393], 80.00th=[ 393], 90.00th=[ 393], 95.00th=[ 393], | 99.00th=[ 393], 99.50th=[ 393], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.93%, ctx=42, majf=0, minf=7 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=90.1MiB/s (94.5MB/s), 90.1MiB/s-90.1MiB/s (94.5MB/s-94.5MB/s), io=40.0MiB (41.9MB), run=444-444msec 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