== sanity test 398c: run fio to test AIO ================= 19:42:43 (1786750963) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.527981 s, 79.4 MB/s osc.lustre-OST0000-osc-ffff8ece4eda8000.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=146628: Fri Aug 14 19:45:34 2026 write: IOPS=15, BW=63.5KiB/s (64.0kB/s)(10.0MiB/161356msec); 0 zone resets slat (usec): min=53, max=11265, avg=267.81, stdev=730.86 clat (msec): min=224, max=1855, avg=1007.66, stdev=257.63 lat (msec): min=224, max=1855, avg=1007.93, stdev=257.66 clat percentiles (msec): | 1.00th=[ 230], 5.00th=[ 542], 10.00th=[ 701], 20.00th=[ 810], | 30.00th=[ 902], 40.00th=[ 969], 50.00th=[ 1028], 60.00th=[ 1083], | 70.00th=[ 1150], 80.00th=[ 1217], 90.00th=[ 1318], 95.00th=[ 1385], | 99.00th=[ 1586], 99.50th=[ 1687], 99.90th=[ 1770], 99.95th=[ 1854], | 99.99th=[ 1854] bw ( KiB/s): min= 7, max= 215, per=24.77%, avg=62.66, stdev=28.66, samples=321 iops : min= 1, max= 53, avg=15.22, stdev= 7.19, samples=321 lat (msec) : 250=1.25%, 500=2.70%, 750=10.43%, 1000=31.09%, 2000=54.53% cpu : usr=0.04%, sys=0.26%, ctx=2102, 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 rand-write: (groupid=0, jobs=1): err= 0: pid=146629: Fri Aug 14 19:45:34 2026 write: IOPS=15, BW=63.5KiB/s (65.0kB/s)(10.0MiB/161288msec); 0 zone resets slat (usec): min=51, max=13246, avg=296.91, stdev=819.60 clat (msec): min=114, max=1796, avg=1006.96, stdev=257.71 lat (msec): min=114, max=1796, avg=1007.26, stdev=257.69 clat percentiles (msec): | 1.00th=[ 230], 5.00th=[ 542], 10.00th=[ 709], 20.00th=[ 818], | 30.00th=[ 894], 40.00th=[ 969], 50.00th=[ 1020], 60.00th=[ 1083], | 70.00th=[ 1150], 80.00th=[ 1234], 90.00th=[ 1301], 95.00th=[ 1368], | 99.00th=[ 1552], 99.50th=[ 1586], 99.90th=[ 1720], 99.95th=[ 1804], | 99.99th=[ 1804] bw ( KiB/s): min= 7, max= 216, per=24.85%, avg=62.86, stdev=29.14, samples=320 iops : min= 1, max= 54, avg=15.28, stdev= 7.32, samples=320 lat (msec) : 250=1.33%, 500=2.70%, 750=9.06%, 1000=32.07%, 2000=54.84% cpu : usr=0.04%, sys=0.27%, ctx=2118, 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=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=146630: Fri Aug 14 19:45:34 2026 write: IOPS=15, BW=63.6KiB/s (65.1kB/s)(10.0MiB/161000msec); 0 zone resets slat (usec): min=52, max=38167, avg=313.84, stdev=1119.17 clat (msec): min=103, max=1768, avg=1005.54, stdev=260.92 lat (msec): min=103, max=1768, avg=1005.86, stdev=260.92 clat percentiles (msec): | 1.00th=[ 234], 5.00th=[ 527], 10.00th=[ 693], 20.00th=[ 810], | 30.00th=[ 902], 40.00th=[ 961], 50.00th=[ 1020], 60.00th=[ 1083], | 70.00th=[ 1150], 80.00th=[ 1217], 90.00th=[ 1318], 95.00th=[ 1401], | 99.00th=[ 1569], 99.50th=[ 1603], 99.90th=[ 1687], 99.95th=[ 1687], | 99.99th=[ 1770] bw ( KiB/s): min= 7, max= 214, per=25.00%, avg=63.26, stdev=26.05, samples=318 iops : min= 1, max= 53, avg=15.37, stdev= 6.54, samples=318 lat (msec) : 250=1.09%, 500=3.20%, 750=9.88%, 1000=32.93%, 2000=52.89% cpu : usr=0.05%, sys=0.27%, ctx=2333, 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 rand-write: (groupid=0, jobs=1): err= 0: pid=146631: Fri Aug 14 19:45:34 2026 write: IOPS=15, BW=63.5KiB/s (65.0kB/s)(10.0MiB/161289msec); 0 zone resets slat (usec): min=51, max=18280, avg=272.17, stdev=874.03 clat (msec): min=175, max=1756, avg=1006.90, stdev=259.59 lat (msec): min=175, max=1756, avg=1007.17, stdev=259.57 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 531], 10.00th=[ 693], 20.00th=[ 818], | 30.00th=[ 902], 40.00th=[ 961], 50.00th=[ 1020], 60.00th=[ 1070], | 70.00th=[ 1150], 80.00th=[ 1234], 90.00th=[ 1318], 95.00th=[ 1385], | 99.00th=[ 1586], 99.50th=[ 1603], 99.90th=[ 1737], 99.95th=[ 1737], | 99.99th=[ 1754] bw ( KiB/s): min= 7, max= 207, per=25.02%, avg=63.31, stdev=26.12, samples=318 iops : min= 1, max= 51, avg=15.39, stdev= 6.56, samples=318 lat (msec) : 250=0.86%, 500=3.48%, 750=10.16%, 1000=32.15%, 2000=53.36% cpu : usr=0.04%, sys=0.27%, ctx=1976, 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=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=254KiB/s (260kB/s), 63.5KiB/s-63.6KiB/s (64.0kB/s-65.1kB/s), io=40.0MiB (41.9MB), run=161000-161356msec 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=146664: Fri Aug 14 19:47:28 2026 read: IOPS=12, BW=48.5KiB/s (49.7kB/s)(5048KiB/104102msec) slat (usec): min=2872, max=52502, avg=13902.12, stdev=7138.94 clat (msec): min=18, max=1248, avg=408.26, stdev=115.37 lat (msec): min=22, max=1262, avg=422.17, stdev=116.28 clat percentiles (msec): | 1.00th=[ 180], 5.00th=[ 264], 10.00th=[ 292], 20.00th=[ 321], | 30.00th=[ 347], 40.00th=[ 372], 50.00th=[ 393], 60.00th=[ 418], | 70.00th=[ 447], 80.00th=[ 485], 90.00th=[ 550], 95.00th=[ 600], | 99.00th=[ 760], 99.50th=[ 802], 99.90th=[ 1083], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 7, max= 119, per=25.06%, avg=48.12, stdev=22.76, samples=206 iops : min= 1, max= 29, avg=11.53, stdev= 5.68, samples=206 write: IOPS=12, BW=49.9KiB/s (51.1kB/s)(5192KiB/104102msec); 0 zone resets slat (usec): min=53, max=11971, avg=387.81, stdev=780.87 clat (msec): min=277, max=1746, avg=869.34, stdev=237.44 lat (msec): min=277, max=1746, avg=869.73, stdev=237.42 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 514], 10.00th=[ 558], 20.00th=[ 659], | 30.00th=[ 726], 40.00th=[ 793], 50.00th=[ 860], 60.00th=[ 936], | 70.00th=[ 1003], 80.00th=[ 1070], 90.00th=[ 1150], 95.00th=[ 1250], | 99.00th=[ 1485], 99.50th=[ 1569], 99.90th=[ 1737], 99.95th=[ 1754], | 99.99th=[ 1754] bw ( KiB/s): min= 7, max= 104, per=24.67%, avg=49.33, stdev=21.31, samples=206 iops : min= 1, max= 26, avg=11.83, stdev= 5.35, samples=206 lat (msec) : 20=0.04%, 50=0.20%, 100=0.12%, 250=1.29%, 500=41.45% lat (msec) : 750=22.23%, 1000=19.22%, 2000=15.47% cpu : usr=0.10%, sys=0.73%, ctx=4733, 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=146665: Fri Aug 14 19:47:28 2026 read: IOPS=11, BW=47.7KiB/s (48.8kB/s)(4976KiB/104401msec) slat (usec): min=3016, max=51038, avg=13650.42, stdev=7192.26 clat (msec): min=28, max=1152, avg=403.71, stdev=111.32 lat (msec): min=35, max=1161, avg=417.37, stdev=112.33 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 262], 10.00th=[ 292], 20.00th=[ 326], | 30.00th=[ 347], 40.00th=[ 372], 50.00th=[ 388], 60.00th=[ 409], | 70.00th=[ 443], 80.00th=[ 477], 90.00th=[ 531], 95.00th=[ 592], | 99.00th=[ 760], 99.50th=[ 869], 99.90th=[ 1133], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 7, max= 119, per=24.64%, avg=47.31, stdev=22.27, samples=206 iops : min= 1, max= 29, avg=11.33, stdev= 5.57, samples=206 write: IOPS=12, BW=50.4KiB/s (51.6kB/s)(5264KiB/104401msec); 0 zone resets slat (usec): min=59, max=24008, avg=432.11, stdev=1113.11 clat (msec): min=269, max=1768, avg=872.31, stdev=241.72 lat (msec): min=269, max=1768, avg=872.74, stdev=241.69 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 506], 10.00th=[ 558], 20.00th=[ 651], | 30.00th=[ 726], 40.00th=[ 802], 50.00th=[ 877], 60.00th=[ 936], | 70.00th=[ 1003], 80.00th=[ 1083], 90.00th=[ 1183], 95.00th=[ 1284], | 99.00th=[ 1452], 99.50th=[ 1519], 99.90th=[ 1770], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 7, max= 103, per=24.93%, avg=49.86, stdev=19.92, samples=207 iops : min= 1, max= 25, avg=11.97, stdev= 5.01, samples=207 lat (msec) : 50=0.16%, 100=0.12%, 250=1.52%, 500=41.95%, 750=21.76% lat (msec) : 1000=18.95%, 2000=15.55% cpu : usr=0.09%, sys=0.74%, ctx=4445, 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=146666: Fri Aug 14 19:47:28 2026 read: IOPS=11, BW=47.8KiB/s (48.0kB/s)(4984KiB/104227msec) slat (usec): min=83, max=51631, avg=13912.31, stdev=7263.82 clat (msec): min=32, max=1344, avg=407.74, stdev=114.80 lat (msec): min=32, max=1367, avg=421.67, stdev=116.00 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 255], 10.00th=[ 292], 20.00th=[ 330], | 30.00th=[ 351], 40.00th=[ 376], 50.00th=[ 397], 60.00th=[ 418], | 70.00th=[ 443], 80.00th=[ 477], 90.00th=[ 550], 95.00th=[ 600], | 99.00th=[ 751], 99.50th=[ 793], 99.90th=[ 1284], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 7, max= 127, per=24.99%, avg=47.99, stdev=21.55, samples=204 iops : min= 1, max= 31, avg=11.50, stdev= 5.41, samples=204 write: IOPS=12, BW=50.4KiB/s (51.6kB/s)(5256KiB/104227msec); 0 zone resets slat (usec): min=58, max=10566, avg=410.12, stdev=867.88 clat (msec): min=154, max=1713, avg=867.81, stdev=240.32 lat (msec): min=154, max=1714, avg=868.23, stdev=240.34 clat percentiles (msec): | 1.00th=[ 347], 5.00th=[ 502], 10.00th=[ 567], 20.00th=[ 659], | 30.00th=[ 735], 40.00th=[ 793], 50.00th=[ 852], 60.00th=[ 936], | 70.00th=[ 1003], 80.00th=[ 1070], 90.00th=[ 1183], 95.00th=[ 1284], | 99.00th=[ 1435], 99.50th=[ 1502], 99.90th=[ 1703], 99.95th=[ 1720], | 99.99th=[ 1720] bw ( KiB/s): min= 7, max= 95, per=24.94%, avg=49.88, stdev=19.86, samples=206 iops : min= 1, max= 23, avg=11.98, stdev= 4.96, samples=206 lat (msec) : 50=0.12%, 100=0.27%, 250=2.03%, 500=41.02%, 750=21.52% lat (msec) : 1000=19.65%, 2000=15.39% cpu : usr=0.11%, sys=0.67%, ctx=4425, 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=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=146667: Fri Aug 14 19:47:28 2026 read: IOPS=12, BW=48.5KiB/s (49.7kB/s)(5060KiB/104355msec) slat (usec): min=3402, max=53942, avg=14098.84, stdev=7032.12 clat (msec): min=15, max=1186, avg=411.29, stdev=111.01 lat (msec): min=23, max=1206, avg=425.40, stdev=112.01 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 271], 10.00th=[ 296], 20.00th=[ 330], | 30.00th=[ 351], 40.00th=[ 376], 50.00th=[ 393], 60.00th=[ 418], | 70.00th=[ 447], 80.00th=[ 485], 90.00th=[ 550], 95.00th=[ 600], | 99.00th=[ 743], 99.50th=[ 852], 99.90th=[ 1116], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 7, max= 112, per=25.10%, avg=48.20, stdev=22.45, samples=206 iops : min= 1, max= 28, avg=11.55, stdev= 5.63, samples=206 write: IOPS=12, BW=49.6KiB/s (50.8kB/s)(5180KiB/104355msec); 0 zone resets slat (usec): min=56, max=25565, avg=447.72, stdev=1219.78 clat (msec): min=240, max=1595, avg=870.62, stdev=237.64 lat (msec): min=241, max=1596, avg=871.07, stdev=237.70 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 498], 10.00th=[ 558], 20.00th=[ 659], | 30.00th=[ 735], 40.00th=[ 793], 50.00th=[ 860], 60.00th=[ 944], | 70.00th=[ 1003], 80.00th=[ 1070], 90.00th=[ 1183], 95.00th=[ 1267], | 99.00th=[ 1469], 99.50th=[ 1502], 99.90th=[ 1536], 99.95th=[ 1603], | 99.99th=[ 1603] bw ( KiB/s): min= 8, max= 111, per=24.50%, avg=48.99, stdev=20.24, samples=207 iops : min= 2, max= 27, avg=11.75, stdev= 5.08, samples=207 lat (msec) : 20=0.04%, 50=0.04%, 100=0.08%, 250=1.33%, 500=42.30% lat (msec) : 750=21.72%, 1000=18.91%, 2000=15.59% cpu : usr=0.09%, sys=0.73%, ctx=5240, 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=192KiB/s (197kB/s), 47.7KiB/s-48.5KiB/s (48.8kB/s-49.7kB/s), io=19.6MiB (20.5MB), run=104102-104401msec WRITE: bw=200KiB/s (205kB/s), 49.6KiB/s-50.4KiB/s (50.8kB/s-51.6kB/s), io=20.4MiB (21.4MB), run=104102-104401msec 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=146687: Fri Aug 14 19:47:39 2026 read: IOPS=1, BW=62.1MiB/s (65.1MB/s)(40.0MiB/644msec) slat (nsec): min=48583k, max=48583k, avg=48583205.00, stdev= 0.00 clat (nsec): min=563320k, max=563320k, avg=563320450.00, stdev= 0.00 lat (nsec): min=611932k, max=611932k, avg=611932078.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 567], 5.00th=[ 567], 10.00th=[ 567], 20.00th=[ 567], | 30.00th=[ 567], 40.00th=[ 567], 50.00th=[ 567], 60.00th=[ 567], | 70.00th=[ 567], 80.00th=[ 567], 90.00th=[ 567], 95.00th=[ 567], | 99.00th=[ 567], 99.50th=[ 567], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.71%, ctx=21, majf=0, minf=9 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=62.1MiB/s (65.1MB/s), 62.1MiB/s-62.1MiB/s (65.1MB/s-65.1MB/s), io=40.0MiB (41.9MB), run=644-644msec 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