== sanity test 398c: run fio to test AIO ================= 19:19:57 (1787872797) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.664256 s, 63.1 MB/s osc.lustre-OST0000-osc-ffff9e31fa08c000.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=145459: Thu Aug 27 19:22:59 2026 write: IOPS=14, BW=59.7KiB/s (61.2kB/s)(10.0MiB/171404msec); 0 zone resets slat (usec): min=25, max=31659, avg=291.25, stdev=1328.41 clat (msec): min=227, max=2359, avg=1070.40, stdev=307.25 lat (msec): min=227, max=2360, avg=1070.70, stdev=307.38 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 684], 10.00th=[ 751], 20.00th=[ 844], | 30.00th=[ 919], 40.00th=[ 969], 50.00th=[ 1028], 60.00th=[ 1083], | 70.00th=[ 1167], 80.00th=[ 1250], 90.00th=[ 1401], 95.00th=[ 1670], | 99.00th=[ 2123], 99.50th=[ 2198], 99.90th=[ 2366], 99.95th=[ 2366], | 99.99th=[ 2366] bw ( KiB/s): min= 7, max= 255, per=25.93%, avg=61.71, stdev=31.20, samples=326 iops : min= 1, max= 63, avg=14.94, stdev= 7.82, samples=326 lat (msec) : 250=0.62%, 500=1.25%, 750=8.16%, 1000=35.23%, 2000=52.97% lat (msec) : >=2000=1.76% cpu : usr=0.05%, sys=0.23%, ctx=1601, 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=145460: Thu Aug 27 19:22:59 2026 write: IOPS=14, BW=59.7KiB/s (61.1kB/s)(10.0MiB/171642msec); 0 zone resets slat (usec): min=23, max=13942, avg=246.20, stdev=800.03 clat (msec): min=206, max=2345, avg=1071.64, stdev=299.64 lat (msec): min=206, max=2355, avg=1071.89, stdev=299.66 clat percentiles (msec): | 1.00th=[ 414], 5.00th=[ 684], 10.00th=[ 760], 20.00th=[ 844], | 30.00th=[ 911], 40.00th=[ 978], 50.00th=[ 1036], 60.00th=[ 1099], | 70.00th=[ 1167], 80.00th=[ 1267], 90.00th=[ 1418], 95.00th=[ 1603], | 99.00th=[ 2106], 99.50th=[ 2198], 99.90th=[ 2299], 99.95th=[ 2299], | 99.99th=[ 2333] bw ( KiB/s): min= 7, max= 135, per=24.78%, avg=58.98, stdev=24.02, samples=341 iops : min= 1, max= 33, avg=14.26, stdev= 6.01, samples=341 lat (msec) : 250=0.04%, 500=1.56%, 750=8.01%, 1000=35.31%, 2000=53.44% lat (msec) : >=2000=1.64% cpu : usr=0.05%, sys=0.22%, ctx=1816, 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=145461: Thu Aug 27 19:22:59 2026 write: IOPS=14, BW=59.7KiB/s (61.1kB/s)(10.0MiB/171532msec); 0 zone resets slat (usec): min=28, max=21450, avg=256.68, stdev=878.24 clat (msec): min=326, max=2360, avg=1070.44, stdev=300.58 lat (msec): min=326, max=2361, avg=1070.70, stdev=300.57 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 684], 10.00th=[ 751], 20.00th=[ 844], | 30.00th=[ 902], 40.00th=[ 969], 50.00th=[ 1036], 60.00th=[ 1099], | 70.00th=[ 1183], 80.00th=[ 1267], 90.00th=[ 1401], 95.00th=[ 1620], | 99.00th=[ 2123], 99.50th=[ 2198], 99.90th=[ 2299], 99.95th=[ 2299], | 99.99th=[ 2366] bw ( KiB/s): min= 7, max= 128, per=25.54%, avg=60.77, stdev=29.40, samples=331 iops : min= 1, max= 32, avg=14.71, stdev= 7.37, samples=331 lat (msec) : 500=1.25%, 750=8.63%, 1000=35.47%, 2000=52.85%, >=2000=1.80% cpu : usr=0.04%, sys=0.22%, ctx=1644, 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=145462: Thu Aug 27 19:22:59 2026 write: IOPS=14, BW=59.8KiB/s (61.2kB/s)(10.0MiB/171316msec); 0 zone resets slat (usec): min=29, max=31108, avg=272.18, stdev=1053.24 clat (msec): min=90, max=2365, avg=1069.23, stdev=307.32 lat (msec): min=90, max=2365, avg=1069.50, stdev=307.38 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 676], 10.00th=[ 751], 20.00th=[ 844], | 30.00th=[ 902], 40.00th=[ 961], 50.00th=[ 1028], 60.00th=[ 1099], | 70.00th=[ 1167], 80.00th=[ 1267], 90.00th=[ 1418], 95.00th=[ 1670], | 99.00th=[ 2123], 99.50th=[ 2198], 99.90th=[ 2299], 99.95th=[ 2366], | 99.99th=[ 2366] bw ( KiB/s): min= 7, max= 135, per=25.31%, avg=60.23, stdev=25.35, samples=334 iops : min= 1, max= 33, avg=14.57, stdev= 6.36, samples=334 lat (msec) : 100=0.04%, 250=0.04%, 500=1.84%, 750=8.71%, 1000=35.82% lat (msec) : 2000=51.91%, >=2000=1.64% cpu : usr=0.05%, sys=0.25%, ctx=2001, 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 Run status group 0 (all jobs): WRITE: bw=239KiB/s (244kB/s), 59.7KiB/s-59.8KiB/s (61.1kB/s-61.2kB/s), io=40.0MiB (41.9MB), run=171316-171642msec 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=145496: Thu Aug 27 19:25:03 2026 read: IOPS=10, BW=43.6KiB/s (44.7kB/s)(5048KiB/115701msec) slat (usec): min=2890, max=71646, avg=14934.53, stdev=8606.17 clat (msec): min=7, max=955, avg=441.62, stdev=125.06 lat (msec): min=13, max=994, avg=456.56, stdev=126.53 clat percentiles (msec): | 1.00th=[ 194], 5.00th=[ 275], 10.00th=[ 300], 20.00th=[ 342], | 30.00th=[ 380], 40.00th=[ 405], 50.00th=[ 430], 60.00th=[ 460], | 70.00th=[ 485], 80.00th=[ 531], 90.00th=[ 592], 95.00th=[ 667], | 99.00th=[ 835], 99.50th=[ 894], 99.90th=[ 927], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 7, max= 127, per=25.08%, avg=43.39, stdev=21.55, samples=228 iops : min= 1, max= 31, avg=10.35, stdev= 5.44, samples=228 write: IOPS=11, BW=44.9KiB/s (45.0kB/s)(5192KiB/115701msec); 0 zone resets slat (usec): min=31, max=13338, avg=284.32, stdev=739.04 clat (msec): min=271, max=1933, avg=979.64, stdev=266.92 lat (msec): min=271, max=1933, avg=979.93, stdev=266.93 clat percentiles (msec): | 1.00th=[ 489], 5.00th=[ 609], 10.00th=[ 667], 20.00th=[ 760], | 30.00th=[ 818], 40.00th=[ 869], 50.00th=[ 944], 60.00th=[ 1011], | 70.00th=[ 1099], 80.00th=[ 1183], 90.00th=[ 1334], 95.00th=[ 1485], | 99.00th=[ 1703], 99.50th=[ 1754], 99.90th=[ 1905], 99.95th=[ 1938], | 99.99th=[ 1938] bw ( KiB/s): min= 7, max= 112, per=24.62%, avg=44.31, stdev=19.66, samples=229 iops : min= 1, max= 28, avg=10.58, stdev= 4.95, samples=229 lat (msec) : 10=0.04%, 50=0.20%, 100=0.12%, 250=1.25%, 500=35.27% lat (msec) : 750=20.86%, 1000=20.78%, 2000=21.48% cpu : usr=0.11%, sys=0.67%, ctx=4644, 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=145497: Thu Aug 27 19:25:03 2026 read: IOPS=10, BW=43.0KiB/s (44.1kB/s)(4976KiB/115651msec) slat (usec): min=2730, max=69721, avg=14875.87, stdev=8290.91 clat (msec): min=26, max=1031, avg=446.24, stdev=130.12 lat (msec): min=38, max=1063, avg=461.12, stdev=130.99 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 268], 10.00th=[ 300], 20.00th=[ 342], | 30.00th=[ 380], 40.00th=[ 405], 50.00th=[ 435], 60.00th=[ 468], | 70.00th=[ 498], 80.00th=[ 542], 90.00th=[ 617], 95.00th=[ 676], | 99.00th=[ 818], 99.50th=[ 860], 99.90th=[ 1020], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 7, max= 110, per=24.68%, avg=42.70, stdev=19.24, samples=228 iops : min= 1, max= 27, avg=10.17, stdev= 4.83, samples=228 write: IOPS=11, BW=45.5KiB/s (46.6kB/s)(5264KiB/115651msec); 0 zone resets slat (usec): min=28, max=18329, avg=346.79, stdev=1019.57 clat (msec): min=223, max=1905, avg=968.30, stdev=272.07 lat (msec): min=223, max=1905, avg=968.65, stdev=272.06 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 567], 10.00th=[ 651], 20.00th=[ 743], | 30.00th=[ 818], 40.00th=[ 877], 50.00th=[ 944], 60.00th=[ 1003], | 70.00th=[ 1083], 80.00th=[ 1183], 90.00th=[ 1318], 95.00th=[ 1485], | 99.00th=[ 1703], 99.50th=[ 1770], 99.90th=[ 1888], 99.95th=[ 1905], | 99.99th=[ 1905] bw ( KiB/s): min= 7, max= 96, per=24.88%, avg=44.78, stdev=19.41, samples=230 iops : min= 1, max= 24, avg=10.70, stdev= 4.90, samples=230 lat (msec) : 50=0.23%, 100=0.20%, 250=1.52%, 500=33.52%, 750=23.12% lat (msec) : 1000=20.12%, 2000=21.29% cpu : usr=0.11%, sys=0.65%, ctx=4692, 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=145498: Thu Aug 27 19:25:03 2026 read: IOPS=10, BW=43.1KiB/s (44.2kB/s)(4984KiB/115506msec) slat (usec): min=35, max=72456, avg=14684.99, stdev=8301.50 clat (msec): min=22, max=1008, avg=445.85, stdev=126.52 lat (msec): min=38, max=1032, avg=460.54, stdev=128.14 clat percentiles (msec): | 1.00th=[ 192], 5.00th=[ 268], 10.00th=[ 305], 20.00th=[ 347], | 30.00th=[ 376], 40.00th=[ 409], 50.00th=[ 430], 60.00th=[ 464], | 70.00th=[ 493], 80.00th=[ 535], 90.00th=[ 600], 95.00th=[ 676], | 99.00th=[ 844], 99.50th=[ 911], 99.90th=[ 1003], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 7, max= 104, per=24.80%, avg=42.91, stdev=20.11, samples=228 iops : min= 1, max= 26, avg=10.23, stdev= 5.04, samples=228 write: IOPS=11, BW=45.5KiB/s (46.6kB/s)(5256KiB/115506msec); 0 zone resets slat (usec): min=34, max=21178, avg=351.15, stdev=1088.38 clat (msec): min=142, max=1940, avg=968.64, stdev=269.48 lat (msec): min=142, max=1940, avg=969.00, stdev=269.53 clat percentiles (msec): | 1.00th=[ 447], 5.00th=[ 584], 10.00th=[ 651], 20.00th=[ 751], | 30.00th=[ 835], 40.00th=[ 885], 50.00th=[ 944], 60.00th=[ 1011], | 70.00th=[ 1083], 80.00th=[ 1183], 90.00th=[ 1301], 95.00th=[ 1469], | 99.00th=[ 1703], 99.50th=[ 1804], 99.90th=[ 1905], 99.95th=[ 1938], | 99.99th=[ 1938] bw ( KiB/s): min= 7, max= 103, per=25.10%, avg=45.18, stdev=19.91, samples=227 iops : min= 1, max= 25, avg=10.80, stdev= 5.00, samples=227 lat (msec) : 50=0.16%, 250=1.45%, 500=34.30%, 750=21.88%, 1000=21.05% lat (msec) : 2000=21.17% cpu : usr=0.11%, sys=0.62%, ctx=4366, 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=145499: Thu Aug 27 19:25:03 2026 read: IOPS=10, BW=43.8KiB/s (44.8kB/s)(5060KiB/115603msec) slat (usec): min=2895, max=67691, avg=14523.09, stdev=8302.18 clat (msec): min=20, max=1020, avg=449.03, stdev=123.80 lat (msec): min=25, max=1043, avg=463.56, stdev=124.92 clat percentiles (msec): | 1.00th=[ 209], 5.00th=[ 279], 10.00th=[ 309], 20.00th=[ 347], | 30.00th=[ 384], 40.00th=[ 414], 50.00th=[ 439], 60.00th=[ 464], | 70.00th=[ 493], 80.00th=[ 542], 90.00th=[ 600], 95.00th=[ 676], | 99.00th=[ 844], 99.50th=[ 911], 99.90th=[ 1003], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 7, max= 111, per=25.47%, avg=44.06, stdev=18.46, samples=225 iops : min= 1, max= 27, avg=10.51, stdev= 4.67, samples=225 write: IOPS=11, BW=44.8KiB/s (45.9kB/s)(5180KiB/115603msec); 0 zone resets slat (usec): min=33, max=20498, avg=325.49, stdev=995.29 clat (msec): min=130, max=1936, avg=973.06, stdev=266.66 lat (msec): min=133, max=1936, avg=973.38, stdev=266.68 clat percentiles (msec): | 1.00th=[ 477], 5.00th=[ 600], 10.00th=[ 667], 20.00th=[ 743], | 30.00th=[ 818], 40.00th=[ 877], 50.00th=[ 944], 60.00th=[ 1011], | 70.00th=[ 1083], 80.00th=[ 1183], 90.00th=[ 1318], 95.00th=[ 1502], | 99.00th=[ 1703], 99.50th=[ 1720], 99.90th=[ 1888], 99.95th=[ 1938], | 99.99th=[ 1938] bw ( KiB/s): min= 7, max= 120, per=24.67%, avg=44.40, stdev=20.62, samples=228 iops : min= 1, max= 30, avg=10.61, stdev= 5.19, samples=228 lat (msec) : 50=0.08%, 100=0.04%, 250=0.98%, 500=34.69%, 750=23.16% lat (msec) : 1000=19.84%, 2000=21.21% cpu : usr=0.11%, sys=0.62%, ctx=4555, 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=173KiB/s (178kB/s), 43.0KiB/s-43.8KiB/s (44.1kB/s-44.8kB/s), io=19.6MiB (20.5MB), run=115506-115701msec WRITE: bw=181KiB/s (185kB/s), 44.8KiB/s-45.5KiB/s (45.9kB/s-46.6kB/s), io=20.4MiB (21.4MB), run=115506-115701msec 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=145520: Thu Aug 27 19:25:13 2026 read: IOPS=1, BW=77.5MiB/s (81.3MB/s)(40.0MiB/516msec) slat (nsec): min=22130k, max=22130k, avg=22129850.00, stdev= 0.00 clat (nsec): min=476007k, max=476007k, avg=476006951.00, stdev= 0.00 lat (nsec): min=498141k, max=498141k, avg=498140988.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 477], 5.00th=[ 477], 10.00th=[ 477], 20.00th=[ 477], | 30.00th=[ 477], 40.00th=[ 477], 50.00th=[ 477], 60.00th=[ 477], | 70.00th=[ 477], 80.00th=[ 477], 90.00th=[ 477], 95.00th=[ 477], | 99.00th=[ 477], 99.50th=[ 477], 99.90th=[ 477], 99.95th=[ 477], | 99.99th=[ 477] lat (msec) : 500=100.00% cpu : usr=0.19%, sys=2.52%, ctx=7, 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=77.5MiB/s (81.3MB/s), 77.5MiB/s-77.5MiB/s (81.3MB/s-81.3MB/s), io=40.0MiB (41.9MB), run=516-516msec 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