== sanity test 398c: run fio to test AIO ================= 02:32:30 (1787553150) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.412958 s, 102 MB/s osc.lustre-OST0000-osc-ffff8aa96d8be800.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=145245: Mon Aug 24 02:35:09 2026 write: IOPS=17, BW=68.2KiB/s (69.9kB/s)(10.0MiB/150104msec); 0 zone resets slat (usec): min=28, max=11635, avg=188.09, stdev=662.66 clat (msec): min=120, max=1652, avg=937.62, stdev=229.90 lat (msec): min=120, max=1653, avg=937.81, stdev=229.90 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 600], 10.00th=[ 676], 20.00th=[ 751], | 30.00th=[ 827], 40.00th=[ 885], 50.00th=[ 936], 60.00th=[ 995], | 70.00th=[ 1053], 80.00th=[ 1116], 90.00th=[ 1217], 95.00th=[ 1334], | 99.00th=[ 1519], 99.50th=[ 1552], 99.90th=[ 1620], 99.95th=[ 1636], | 99.99th=[ 1653] bw ( KiB/s): min= 7, max= 225, per=25.30%, avg=68.82, stdev=31.23, samples=293 iops : min= 1, max= 56, avg=16.76, stdev= 7.84, samples=293 lat (msec) : 250=0.62%, 500=3.32%, 750=15.08%, 1000=41.88%, 2000=39.10% cpu : usr=0.04%, sys=0.21%, ctx=1623, 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=145246: Mon Aug 24 02:35:09 2026 write: IOPS=17, BW=68.2KiB/s (69.8kB/s)(10.0MiB/150131msec); 0 zone resets slat (usec): min=27, max=12303, avg=186.01, stdev=646.48 clat (msec): min=179, max=1678, avg=937.64, stdev=225.79 lat (msec): min=179, max=1679, avg=937.83, stdev=225.79 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 617], 10.00th=[ 693], 20.00th=[ 760], | 30.00th=[ 818], 40.00th=[ 877], 50.00th=[ 936], 60.00th=[ 995], | 70.00th=[ 1053], 80.00th=[ 1116], 90.00th=[ 1217], 95.00th=[ 1318], | 99.00th=[ 1552], 99.50th=[ 1603], 99.90th=[ 1653], 99.95th=[ 1653], | 99.99th=[ 1687] bw ( KiB/s): min= 7, max= 256, per=25.76%, avg=70.07, stdev=35.19, samples=288 iops : min= 1, max= 64, avg=17.10, stdev= 8.85, samples=288 lat (msec) : 250=0.70%, 500=2.73%, 750=15.00%, 1000=42.50%, 2000=39.06% cpu : usr=0.04%, sys=0.20%, ctx=1639, 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=145247: Mon Aug 24 02:35:09 2026 write: IOPS=17, BW=68.2KiB/s (69.9kB/s)(10.0MiB/150105msec); 0 zone resets slat (usec): min=28, max=13373, avg=206.38, stdev=719.54 clat (msec): min=145, max=1721, avg=937.39, stdev=229.26 lat (msec): min=145, max=1721, avg=937.59, stdev=229.26 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 600], 10.00th=[ 684], 20.00th=[ 760], | 30.00th=[ 818], 40.00th=[ 869], 50.00th=[ 927], 60.00th=[ 995], | 70.00th=[ 1053], 80.00th=[ 1116], 90.00th=[ 1217], 95.00th=[ 1334], | 99.00th=[ 1552], 99.50th=[ 1569], 99.90th=[ 1687], 99.95th=[ 1687], | 99.99th=[ 1720] bw ( KiB/s): min= 15, max= 254, per=24.97%, avg=67.92, stdev=29.10, samples=297 iops : min= 3, max= 63, avg=16.55, stdev= 7.28, samples=297 lat (msec) : 250=0.62%, 500=2.58%, 750=15.35%, 1000=42.62%, 2000=38.83% cpu : usr=0.05%, sys=0.20%, ctx=2032, 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=145248: Mon Aug 24 02:35:09 2026 write: IOPS=17, BW=68.2KiB/s (69.8kB/s)(10.0MiB/150138msec); 0 zone resets slat (usec): min=28, max=15078, avg=209.52, stdev=830.22 clat (msec): min=61, max=1691, avg=937.48, stdev=229.81 lat (msec): min=62, max=1691, avg=937.69, stdev=229.80 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 584], 10.00th=[ 676], 20.00th=[ 760], | 30.00th=[ 818], 40.00th=[ 877], 50.00th=[ 936], 60.00th=[ 978], | 70.00th=[ 1045], 80.00th=[ 1116], 90.00th=[ 1217], 95.00th=[ 1334], | 99.00th=[ 1552], 99.50th=[ 1603], 99.90th=[ 1687], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 7, max= 136, per=25.67%, avg=69.82, stdev=29.27, samples=289 iops : min= 1, max= 34, avg=17.03, stdev= 7.35, samples=289 lat (msec) : 100=0.04%, 250=0.35%, 500=3.40%, 750=15.08%, 1000=44.61% lat (msec) : 2000=36.52% cpu : usr=0.04%, sys=0.22%, ctx=1855, 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=273KiB/s (279kB/s), 68.2KiB/s-68.2KiB/s (69.8kB/s-69.9kB/s), io=40.0MiB (41.9MB), run=150104-150138msec 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=145281: Mon Aug 24 02:37:10 2026 read: IOPS=11, BW=45.2KiB/s (46.3kB/s)(5048KiB/111708msec) slat (usec): min=34, max=62454, avg=13142.03, stdev=7671.66 clat (msec): min=24, max=1118, avg=431.49, stdev=151.10 lat (msec): min=29, max=1127, avg=444.64, stdev=153.38 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 271], 10.00th=[ 292], 20.00th=[ 330], | 30.00th=[ 355], 40.00th=[ 376], 50.00th=[ 401], 60.00th=[ 426], | 70.00th=[ 460], 80.00th=[ 518], 90.00th=[ 617], 95.00th=[ 768], | 99.00th=[ 944], 99.50th=[ 961], 99.90th=[ 1053], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7, max= 120, per=25.61%, avg=45.58, stdev=23.30, samples=217 iops : min= 1, max= 30, avg=10.92, stdev= 5.86, samples=217 write: IOPS=11, BW=46.5KiB/s (47.6kB/s)(5192KiB/111708msec); 0 zone resets slat (usec): min=33, max=13184, avg=280.09, stdev=948.65 clat (msec): min=80, max=2818, avg=943.56, stdev=349.21 lat (msec): min=80, max=2818, avg=943.85, stdev=349.26 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 518], 10.00th=[ 600], 20.00th=[ 701], | 30.00th=[ 776], 40.00th=[ 827], 50.00th=[ 885], 60.00th=[ 944], | 70.00th=[ 1020], 80.00th=[ 1133], 90.00th=[ 1351], 95.00th=[ 1603], | 99.00th=[ 2299], 99.50th=[ 2467], 99.90th=[ 2802], 99.95th=[ 2802], | 99.99th=[ 2802] bw ( KiB/s): min= 7, max= 111, per=24.75%, avg=45.79, stdev=22.40, samples=222 iops : min= 1, max= 27, avg=10.97, stdev= 5.62, samples=222 lat (msec) : 50=0.27%, 100=0.59%, 250=1.33%, 500=38.32%, 750=19.65% lat (msec) : 1000=23.48%, 2000=15.27%, >=2000=1.09% cpu : usr=0.12%, sys=0.55%, ctx=4586, 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=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=145282: Mon Aug 24 02:37:10 2026 read: IOPS=11, BW=44.1KiB/s (45.2kB/s)(4976KiB/112710msec) slat (usec): min=2924, max=69928, avg=13476.71, stdev=7720.20 clat (msec): min=22, max=1054, avg=423.23, stdev=130.63 lat (msec): min=29, max=1079, avg=436.71, stdev=132.70 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 271], 10.00th=[ 300], 20.00th=[ 330], | 30.00th=[ 351], 40.00th=[ 376], 50.00th=[ 397], 60.00th=[ 422], | 70.00th=[ 460], 80.00th=[ 498], 90.00th=[ 592], 95.00th=[ 684], | 99.00th=[ 860], 99.50th=[ 902], 99.90th=[ 995], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 7, max= 120, per=25.43%, avg=45.27, stdev=21.82, samples=215 iops : min= 1, max= 30, avg=10.85, stdev= 5.52, samples=215 write: IOPS=11, BW=46.7KiB/s (47.8kB/s)(5264KiB/112710msec); 0 zone resets slat (usec): min=32, max=18579, avg=251.69, stdev=1030.00 clat (msec): min=96, max=2849, avg=955.43, stdev=355.93 lat (msec): min=96, max=2850, avg=955.69, stdev=355.94 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 523], 10.00th=[ 609], 20.00th=[ 709], | 30.00th=[ 768], 40.00th=[ 835], 50.00th=[ 894], 60.00th=[ 953], | 70.00th=[ 1028], 80.00th=[ 1150], 90.00th=[ 1368], 95.00th=[ 1603], | 99.00th=[ 2366], 99.50th=[ 2534], 99.90th=[ 2802], 99.95th=[ 2836], | 99.99th=[ 2836] bw ( KiB/s): min= 7, max= 111, per=24.95%, avg=46.16, stdev=21.81, samples=224 iops : min= 1, max= 27, avg=11.06, stdev= 5.49, samples=224 lat (msec) : 50=0.16%, 100=0.35%, 250=1.05%, 500=39.49%, 750=20.12% lat (msec) : 1000=21.21%, 2000=16.64%, >=2000=0.98% cpu : usr=0.09%, sys=0.53%, ctx=4607, 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=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=145283: Mon Aug 24 02:37:10 2026 read: IOPS=11, BW=44.3KiB/s (45.3kB/s)(4984KiB/112625msec) slat (usec): min=2936, max=64646, avg=13632.20, stdev=8017.66 clat (msec): min=24, max=1045, avg=434.30, stdev=141.64 lat (msec): min=29, max=1069, avg=447.94, stdev=144.17 clat percentiles (msec): | 1.00th=[ 209], 5.00th=[ 275], 10.00th=[ 300], 20.00th=[ 334], | 30.00th=[ 355], 40.00th=[ 380], 50.00th=[ 401], 60.00th=[ 430], | 70.00th=[ 460], 80.00th=[ 514], 90.00th=[ 634], 95.00th=[ 735], | 99.00th=[ 911], 99.50th=[ 961], 99.90th=[ 1036], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 7, max= 127, per=24.88%, avg=44.29, stdev=21.28, samples=221 iops : min= 1, max= 31, avg=10.59, stdev= 5.35, samples=221 write: IOPS=11, BW=46.7KiB/s (47.8kB/s)(5256KiB/112625msec); 0 zone resets slat (usec): min=31, max=23163, avg=275.33, stdev=1161.90 clat (msec): min=244, max=2850, avg=944.50, stdev=348.67 lat (msec): min=246, max=2850, avg=944.77, stdev=348.74 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 518], 10.00th=[ 609], 20.00th=[ 701], | 30.00th=[ 768], 40.00th=[ 827], 50.00th=[ 885], 60.00th=[ 944], | 70.00th=[ 1011], 80.00th=[ 1133], 90.00th=[ 1351], 95.00th=[ 1569], | 99.00th=[ 2232], 99.50th=[ 2601], 99.90th=[ 2769], 99.95th=[ 2836], | 99.99th=[ 2836] bw ( KiB/s): min= 7, max= 103, per=24.91%, avg=46.09, stdev=21.04, samples=223 iops : min= 1, max= 25, avg=11.04, stdev= 5.31, samples=223 lat (msec) : 50=0.08%, 100=0.16%, 250=1.17%, 500=38.55%, 750=20.78% lat (msec) : 1000=22.89%, 2000=15.27%, >=2000=1.09% cpu : usr=0.09%, sys=0.51%, ctx=4431, 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=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=145284: Mon Aug 24 02:37:10 2026 read: IOPS=11, BW=45.1KiB/s (46.2kB/s)(5060KiB/112143msec) slat (usec): min=2734, max=63471, avg=13595.00, stdev=7805.51 clat (msec): min=19, max=1134, avg=433.32, stdev=144.76 lat (msec): min=25, max=1143, avg=446.92, stdev=147.36 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 275], 10.00th=[ 300], 20.00th=[ 330], | 30.00th=[ 355], 40.00th=[ 376], 50.00th=[ 401], 60.00th=[ 426], | 70.00th=[ 464], 80.00th=[ 510], 90.00th=[ 625], 95.00th=[ 743], | 99.00th=[ 936], 99.50th=[ 953], 99.90th=[ 1045], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 7, max= 120, per=25.63%, avg=45.61, stdev=20.40, samples=218 iops : min= 1, max= 30, avg=10.93, stdev= 5.14, samples=218 write: IOPS=11, BW=46.2KiB/s (47.3kB/s)(5180KiB/112143msec); 0 zone resets slat (usec): min=32, max=13303, avg=251.15, stdev=888.11 clat (msec): min=277, max=2780, avg=946.62, stdev=337.93 lat (msec): min=277, max=2780, avg=946.87, stdev=337.91 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 535], 10.00th=[ 600], 20.00th=[ 701], | 30.00th=[ 768], 40.00th=[ 835], 50.00th=[ 885], 60.00th=[ 936], | 70.00th=[ 1020], 80.00th=[ 1133], 90.00th=[ 1351], 95.00th=[ 1586], | 99.00th=[ 2232], 99.50th=[ 2534], 99.90th=[ 2668], 99.95th=[ 2769], | 99.99th=[ 2769] bw ( KiB/s): min= 7, max= 96, per=25.00%, avg=46.25, stdev=21.36, samples=219 iops : min= 1, max= 24, avg=11.09, stdev= 5.38, samples=219 lat (msec) : 20=0.04%, 50=0.31%, 100=0.12%, 250=0.47%, 500=39.22% lat (msec) : 750=20.35%, 1000=22.85%, 2000=15.66%, >=2000=0.98% cpu : usr=0.07%, sys=0.54%, ctx=4656, 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=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=178KiB/s (182kB/s), 44.1KiB/s-45.2KiB/s (45.2kB/s-46.3kB/s), io=19.6MiB (20.5MB), run=111708-112710msec WRITE: bw=185KiB/s (190kB/s), 46.2KiB/s-46.7KiB/s (47.3kB/s-47.8kB/s), io=20.4MiB (21.4MB), run=111708-112710msec 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=145304: Mon Aug 24 02:37:19 2026 read: IOPS=2, BW=103MiB/s (108MB/s)(40.0MiB/389msec) slat (nsec): min=29680k, max=29680k, avg=29679602.00, stdev= 0.00 clat (nsec): min=345482k, max=345482k, avg=345481514.00, stdev= 0.00 lat (nsec): min=375166k, max=375166k, avg=375165674.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 347], 5.00th=[ 347], 10.00th=[ 347], 20.00th=[ 347], | 30.00th=[ 347], 40.00th=[ 347], 50.00th=[ 347], 60.00th=[ 347], | 70.00th=[ 347], 80.00th=[ 347], 90.00th=[ 347], 95.00th=[ 347], | 99.00th=[ 347], 99.50th=[ 347], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.58%, ctx=26, 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=103MiB/s (108MB/s), 103MiB/s-103MiB/s (108MB/s-108MB/s), io=40.0MiB (41.9MB), run=389-389msec 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