== sanity test 398c: run fio to test AIO ================= 11:39:45 (1776181185) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.543557 s, 77.2 MB/s osc.lustre-OST0000-osc-ffff8b384c3f5000.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=123309: Tue Apr 14 11:41:49 2026 write: IOPS=22, BW=88.6KiB/s (90.7kB/s)(10.0MiB/115639msec); 0 zone resets slat (usec): min=19, max=16023, avg=224.81, stdev=820.92 clat (msec): min=168, max=1782, avg=722.25, stdev=199.52 lat (msec): min=168, max=1782, avg=722.47, stdev=199.53 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 414], 10.00th=[ 489], 20.00th=[ 567], | 30.00th=[ 625], 40.00th=[ 667], 50.00th=[ 709], 60.00th=[ 751], | 70.00th=[ 802], 80.00th=[ 860], 90.00th=[ 969], 95.00th=[ 1053], | 99.00th=[ 1301], 99.50th=[ 1452], 99.90th=[ 1754], 99.95th=[ 1787], | 99.99th=[ 1787] bw ( KiB/s): min= 7, max= 214, per=25.07%, avg=88.50, stdev=30.85, samples=228 iops : min= 1, max= 53, avg=21.69, stdev= 7.76, samples=228 lat (msec) : 250=0.66%, 500=11.05%, 750=48.28%, 1000=32.27%, 2000=7.73% cpu : usr=0.06%, sys=0.33%, ctx=1892, 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=123310: Tue Apr 14 11:41:49 2026 write: IOPS=22, BW=88.4KiB/s (90.5kB/s)(10.0MiB/115827msec); 0 zone resets slat (usec): min=20, max=16438, avg=248.79, stdev=927.84 clat (msec): min=308, max=1602, avg=723.28, stdev=193.46 lat (msec): min=308, max=1603, avg=723.54, stdev=193.48 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 430], 10.00th=[ 481], 20.00th=[ 567], | 30.00th=[ 617], 40.00th=[ 676], 50.00th=[ 718], 60.00th=[ 751], | 70.00th=[ 793], 80.00th=[ 860], 90.00th=[ 961], 95.00th=[ 1062], | 99.00th=[ 1385], 99.50th=[ 1452], 99.90th=[ 1519], 99.95th=[ 1552], | 99.99th=[ 1603] bw ( KiB/s): min= 7, max= 255, per=25.78%, avg=90.99, stdev=35.89, samples=222 iops : min= 1, max= 63, avg=22.31, stdev= 8.95, samples=222 lat (msec) : 500=11.91%, 750=46.88%, 1000=34.14%, 2000=7.07% cpu : usr=0.07%, sys=0.28%, ctx=1564, majf=0, minf=10 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=123311: Tue Apr 14 11:41:49 2026 write: IOPS=22, BW=88.5KiB/s (90.6kB/s)(10.0MiB/115746msec); 0 zone resets slat (usec): min=20, max=14529, avg=236.19, stdev=862.33 clat (msec): min=72, max=1755, avg=722.97, stdev=201.31 lat (msec): min=72, max=1755, avg=723.21, stdev=201.30 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 430], 10.00th=[ 493], 20.00th=[ 567], | 30.00th=[ 625], 40.00th=[ 667], 50.00th=[ 709], 60.00th=[ 751], | 70.00th=[ 802], 80.00th=[ 860], 90.00th=[ 969], 95.00th=[ 1062], | 99.00th=[ 1334], 99.50th=[ 1552], 99.90th=[ 1687], 99.95th=[ 1754], | 99.99th=[ 1754] bw ( KiB/s): min= 23, max= 216, per=24.85%, avg=87.73, stdev=29.65, samples=230 iops : min= 5, max= 54, avg=21.50, stdev= 7.43, samples=230 lat (msec) : 100=0.20%, 250=0.31%, 500=10.78%, 750=48.20%, 1000=32.42% lat (msec) : 2000=8.09% cpu : usr=0.06%, sys=0.37%, ctx=1917, majf=0, minf=10 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=123312: Tue Apr 14 11:41:49 2026 write: IOPS=22, BW=88.4KiB/s (90.5kB/s)(10.0MiB/115831msec); 0 zone resets slat (usec): min=19, max=15275, avg=259.23, stdev=839.25 clat (msec): min=56, max=1690, avg=723.40, stdev=198.48 lat (msec): min=57, max=1690, avg=723.66, stdev=198.48 clat percentiles (msec): | 1.00th=[ 359], 5.00th=[ 435], 10.00th=[ 489], 20.00th=[ 558], | 30.00th=[ 625], 40.00th=[ 667], 50.00th=[ 709], 60.00th=[ 751], | 70.00th=[ 802], 80.00th=[ 869], 90.00th=[ 969], 95.00th=[ 1053], | 99.00th=[ 1334], 99.50th=[ 1519], 99.90th=[ 1620], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 15, max= 223, per=25.07%, avg=88.51, stdev=32.33, samples=228 iops : min= 3, max= 55, avg=21.69, stdev= 8.09, samples=228 lat (msec) : 100=0.04%, 250=0.04%, 500=11.95%, 750=47.23%, 1000=32.97% lat (msec) : 2000=7.77% cpu : usr=0.08%, sys=0.31%, ctx=1827, majf=0, minf=11 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=354KiB/s (362kB/s), 88.4KiB/s-88.6KiB/s (90.5kB/s-90.7kB/s), io=40.0MiB (41.9MB), run=115639-115831msec 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=123338: Tue Apr 14 11:43:13 2026 read: IOPS=16, BW=64.4KiB/s (65.9kB/s)(5048KiB/78427msec) slat (usec): min=34, max=44442, avg=9750.52, stdev=6280.30 clat (msec): min=20, max=713, avg=320.03, stdev=103.54 lat (msec): min=31, max=744, avg=329.78, stdev=104.84 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 182], 10.00th=[ 209], 20.00th=[ 239], | 30.00th=[ 266], 40.00th=[ 288], 50.00th=[ 309], 60.00th=[ 330], | 70.00th=[ 355], 80.00th=[ 393], 90.00th=[ 456], 95.00th=[ 518], | 99.00th=[ 617], 99.50th=[ 659], 99.90th=[ 701], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 7, max= 152, per=25.12%, avg=64.06, stdev=27.20, samples=155 iops : min= 1, max= 38, avg=15.57, stdev= 6.81, samples=155 write: IOPS=16, BW=66.2KiB/s (67.8kB/s)(5192KiB/78427msec); 0 zone resets slat (usec): min=24, max=16904, avg=271.95, stdev=1053.65 clat (msec): min=147, max=1238, avg=645.11, stdev=200.61 lat (msec): min=147, max=1238, avg=645.38, stdev=200.62 clat percentiles (msec): | 1.00th=[ 253], 5.00th=[ 351], 10.00th=[ 393], 20.00th=[ 477], | 30.00th=[ 527], 40.00th=[ 567], 50.00th=[ 617], 60.00th=[ 684], | 70.00th=[ 735], 80.00th=[ 827], 90.00th=[ 944], 95.00th=[ 1020], | 99.00th=[ 1083], 99.50th=[ 1116], 99.90th=[ 1183], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 8, max= 133, per=25.03%, avg=66.33, stdev=25.95, samples=153 iops : min= 2, max= 33, avg=16.14, stdev= 6.53, samples=153 lat (msec) : 50=0.27%, 100=0.27%, 250=12.11%, 500=45.90%, 750=27.73% lat (msec) : 1000=10.70%, 2000=3.01% cpu : usr=0.11%, sys=0.84%, ctx=3137, 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=123339: Tue Apr 14 11:43:13 2026 read: IOPS=15, BW=63.3KiB/s (64.8kB/s)(4976KiB/78582msec) slat (usec): min=1407, max=53791, avg=9944.76, stdev=6332.06 clat (msec): min=25, max=692, avg=314.22, stdev=97.89 lat (msec): min=36, max=696, avg=324.17, stdev=99.08 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 180], 10.00th=[ 201], 20.00th=[ 236], | 30.00th=[ 259], 40.00th=[ 284], 50.00th=[ 305], 60.00th=[ 326], | 70.00th=[ 351], 80.00th=[ 380], 90.00th=[ 443], 95.00th=[ 510], | 99.00th=[ 600], 99.50th=[ 617], 99.90th=[ 676], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 7, max= 159, per=24.56%, avg=62.63, stdev=29.71, samples=156 iops : min= 1, max= 39, avg=15.22, stdev= 7.47, samples=156 write: IOPS=16, BW=66.0KiB/s (68.6kB/s)(5264KiB/78582msec); 0 zone resets slat (usec): min=21, max=25151, avg=302.94, stdev=1195.10 clat (msec): min=90, max=1270, avg=647.59, stdev=201.88 lat (msec): min=90, max=1270, avg=647.89, stdev=201.89 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 359], 10.00th=[ 405], 20.00th=[ 472], | 30.00th=[ 523], 40.00th=[ 567], 50.00th=[ 625], 60.00th=[ 684], | 70.00th=[ 735], 80.00th=[ 844], 90.00th=[ 944], 95.00th=[ 1020], | 99.00th=[ 1083], 99.50th=[ 1133], 99.90th=[ 1234], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 15, max= 136, per=25.03%, avg=66.33, stdev=25.11, samples=156 iops : min= 3, max= 34, avg=16.14, stdev= 6.30, samples=156 lat (msec) : 50=0.08%, 100=0.12%, 250=13.01%, 500=46.05%, 750=26.33% lat (msec) : 1000=11.29%, 2000=3.12% cpu : usr=0.12%, sys=0.80%, ctx=3381, 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=123340: Tue Apr 14 11:43:13 2026 read: IOPS=15, BW=63.5KiB/s (65.0kB/s)(4984KiB/78495msec) slat (usec): min=66, max=42827, avg=10066.23, stdev=6273.78 clat (msec): min=11, max=706, avg=316.22, stdev=101.05 lat (msec): min=15, max=724, avg=326.29, stdev=102.24 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 180], 10.00th=[ 207], 20.00th=[ 239], | 30.00th=[ 262], 40.00th=[ 279], 50.00th=[ 300], 60.00th=[ 326], | 70.00th=[ 359], 80.00th=[ 393], 90.00th=[ 451], 95.00th=[ 506], | 99.00th=[ 600], 99.50th=[ 651], 99.90th=[ 684], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 7, max= 143, per=24.71%, avg=63.01, stdev=28.69, samples=156 iops : min= 1, max= 35, avg=15.31, stdev= 7.20, samples=156 write: IOPS=16, BW=66.0KiB/s (68.6kB/s)(5256KiB/78495msec); 0 zone resets slat (usec): min=26, max=14883, avg=229.68, stdev=758.02 clat (msec): min=67, max=1204, avg=645.61, stdev=207.14 lat (msec): min=68, max=1205, avg=645.84, stdev=207.14 clat percentiles (msec): | 1.00th=[ 243], 5.00th=[ 351], 10.00th=[ 401], 20.00th=[ 468], | 30.00th=[ 518], 40.00th=[ 567], 50.00th=[ 617], 60.00th=[ 684], | 70.00th=[ 735], 80.00th=[ 844], 90.00th=[ 961], 95.00th=[ 1020], | 99.00th=[ 1099], 99.50th=[ 1116], 99.90th=[ 1167], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 7, max= 136, per=24.88%, avg=65.93, stdev=25.86, samples=156 iops : min= 1, max= 34, avg=16.03, stdev= 6.48, samples=156 lat (msec) : 20=0.16%, 50=0.16%, 100=0.39%, 250=12.03%, 500=46.64% lat (msec) : 750=26.09%, 1000=11.09%, 2000=3.44% cpu : usr=0.12%, sys=0.78%, ctx=3351, 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=123341: Tue Apr 14 11:43:13 2026 read: IOPS=16, BW=64.4KiB/s (65.9kB/s)(5060KiB/78578msec) slat (usec): min=1891, max=49451, avg=10062.26, stdev=6488.63 clat (msec): min=19, max=716, avg=318.39, stdev=100.37 lat (msec): min=25, max=739, avg=328.45, stdev=101.53 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 186], 10.00th=[ 205], 20.00th=[ 234], | 30.00th=[ 262], 40.00th=[ 288], 50.00th=[ 305], 60.00th=[ 326], | 70.00th=[ 355], 80.00th=[ 388], 90.00th=[ 456], 95.00th=[ 518], | 99.00th=[ 617], 99.50th=[ 642], 99.90th=[ 709], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 7, max= 207, per=25.18%, avg=64.22, stdev=27.08, samples=155 iops : min= 1, max= 51, avg=15.61, stdev= 6.82, samples=155 write: IOPS=16, BW=65.9KiB/s (67.5kB/s)(5180KiB/78578msec); 0 zone resets slat (usec): min=21, max=11634, avg=242.13, stdev=759.46 clat (msec): min=65, max=1230, avg=648.25, stdev=200.40 lat (msec): min=66, max=1230, avg=648.49, stdev=200.41 clat percentiles (msec): | 1.00th=[ 257], 5.00th=[ 372], 10.00th=[ 409], 20.00th=[ 464], | 30.00th=[ 527], 40.00th=[ 567], 50.00th=[ 625], 60.00th=[ 684], | 70.00th=[ 743], 80.00th=[ 835], 90.00th=[ 953], 95.00th=[ 1020], | 99.00th=[ 1099], 99.50th=[ 1116], 99.90th=[ 1217], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 15, max= 127, per=24.63%, avg=65.28, stdev=23.11, samples=156 iops : min= 3, max= 31, avg=15.87, stdev= 5.81, samples=156 lat (msec) : 20=0.04%, 50=0.04%, 100=0.08%, 250=12.85%, 500=46.52% lat (msec) : 750=25.86%, 1000=11.52%, 2000=3.09% cpu : usr=0.13%, sys=0.76%, ctx=3223, 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=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=255KiB/s (262kB/s), 63.3KiB/s-64.4KiB/s (64.8kB/s-65.9kB/s), io=19.6MiB (20.5MB), run=78427-78582msec WRITE: bw=266KiB/s (272kB/s), 65.9KiB/s-66.0KiB/s (67.5kB/s-68.6kB/s), io=20.4MiB (21.4MB), run=78427-78582msec 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=123356: Tue Apr 14 11:43:24 2026 read: IOPS=1, BW=76.5MiB/s (80.2MB/s)(40.0MiB/523msec) slat (nsec): min=23669k, max=23669k, avg=23668813.00, stdev= 0.00 clat (nsec): min=484470k, max=484470k, avg=484470177.00, stdev= 0.00 lat (nsec): min=508144k, max=508144k, avg=508143775.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 485], 5.00th=[ 485], 10.00th=[ 485], 20.00th=[ 485], | 30.00th=[ 485], 40.00th=[ 485], 50.00th=[ 485], 60.00th=[ 485], | 70.00th=[ 485], 80.00th=[ 485], 90.00th=[ 485], 95.00th=[ 485], | 99.00th=[ 485], 99.50th=[ 485], 99.90th=[ 485], 99.95th=[ 485], | 99.99th=[ 485] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.87%, ctx=2, majf=0, minf=8 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=76.5MiB/s (80.2MB/s), 76.5MiB/s-76.5MiB/s (80.2MB/s-80.2MB/s), io=40.0MiB (41.9MB), run=523-523msec debug=super ioctl neterror warning dlmtrace error emerg ha rpctrace vfstrace config console lfsck