== sanity test 398c: run fio to test AIO ================= 00:39:42 (1783139982) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.459514 s, 91.3 MB/s osc.lustre-OST0000-osc-ffff8dff3a4ad800.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=145364: Sat Jul 4 00:42:50 2026 write: IOPS=14, BW=57.9KiB/s (59.3kB/s)(10.0MiB/176758msec); 0 zone resets slat (usec): min=38, max=20345, avg=334.74, stdev=872.04 clat (msec): min=165, max=2327, avg=1103.29, stdev=306.19 lat (msec): min=165, max=2327, avg=1103.63, stdev=306.16 clat percentiles (msec): | 1.00th=[ 468], 5.00th=[ 676], 10.00th=[ 760], 20.00th=[ 844], | 30.00th=[ 919], 40.00th=[ 1003], 50.00th=[ 1070], 60.00th=[ 1133], | 70.00th=[ 1234], 80.00th=[ 1351], 90.00th=[ 1502], 95.00th=[ 1687], | 99.00th=[ 2005], 99.50th=[ 2123], 99.90th=[ 2333], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 7, max= 135, per=25.33%, avg=58.51, stdev=30.96, samples=344 iops : min= 1, max= 33, avg=14.14, stdev= 7.76, samples=344 lat (msec) : 250=0.08%, 500=1.05%, 750=8.24%, 1000=30.47%, 2000=59.10% lat (msec) : >=2000=1.05% cpu : usr=0.05%, sys=0.28%, ctx=1934, 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=145365: Sat Jul 4 00:42:50 2026 write: IOPS=14, BW=58.0KiB/s (59.4kB/s)(10.0MiB/176474msec); 0 zone resets slat (usec): min=47, max=28111, avg=357.05, stdev=1104.33 clat (msec): min=132, max=2357, avg=1101.40, stdev=315.67 lat (msec): min=132, max=2358, avg=1101.76, stdev=315.70 clat percentiles (msec): | 1.00th=[ 518], 5.00th=[ 676], 10.00th=[ 760], 20.00th=[ 835], | 30.00th=[ 919], 40.00th=[ 995], 50.00th=[ 1070], 60.00th=[ 1133], | 70.00th=[ 1234], 80.00th=[ 1351], 90.00th=[ 1519], 95.00th=[ 1703], | 99.00th=[ 2022], 99.50th=[ 2140], 99.90th=[ 2333], 99.95th=[ 2333], | 99.99th=[ 2366] bw ( KiB/s): min= 7, max= 128, per=25.09%, avg=57.97, stdev=26.55, samples=347 iops : min= 1, max= 32, avg=14.01, stdev= 6.64, samples=347 lat (msec) : 250=0.62%, 500=0.23%, 750=8.36%, 1000=31.33%, 2000=58.12% lat (msec) : >=2000=1.33% cpu : usr=0.04%, sys=0.29%, ctx=1749, 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=145366: Sat Jul 4 00:42:50 2026 write: IOPS=14, BW=58.2KiB/s (59.6kB/s)(10.0MiB/175803msec); 0 zone resets slat (usec): min=39, max=17259, avg=375.69, stdev=1008.70 clat (msec): min=112, max=2356, avg=1097.88, stdev=318.69 lat (msec): min=113, max=2356, avg=1098.26, stdev=318.69 clat percentiles (msec): | 1.00th=[ 456], 5.00th=[ 659], 10.00th=[ 751], 20.00th=[ 844], | 30.00th=[ 911], 40.00th=[ 1003], 50.00th=[ 1062], 60.00th=[ 1133], | 70.00th=[ 1217], 80.00th=[ 1351], 90.00th=[ 1519], 95.00th=[ 1703], | 99.00th=[ 2039], 99.50th=[ 2165], 99.90th=[ 2232], 99.95th=[ 2232], | 99.99th=[ 2366] bw ( KiB/s): min= 7, max= 150, per=25.16%, avg=58.13, stdev=26.34, samples=346 iops : min= 1, max= 37, avg=14.04, stdev= 6.60, samples=346 lat (msec) : 250=0.78%, 500=0.43%, 750=8.91%, 1000=30.08%, 2000=58.52% lat (msec) : >=2000=1.29% cpu : usr=0.04%, sys=0.29%, ctx=2212, 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=145367: Sat Jul 4 00:42:50 2026 write: IOPS=14, BW=58.0KiB/s (59.4kB/s)(10.0MiB/176550msec); 0 zone resets slat (usec): min=38, max=18646, avg=374.50, stdev=980.33 clat (msec): min=132, max=2432, avg=1101.76, stdev=319.19 lat (msec): min=133, max=2432, avg=1102.14, stdev=319.20 clat percentiles (msec): | 1.00th=[ 542], 5.00th=[ 667], 10.00th=[ 751], 20.00th=[ 844], | 30.00th=[ 919], 40.00th=[ 1003], 50.00th=[ 1070], 60.00th=[ 1133], | 70.00th=[ 1234], 80.00th=[ 1351], 90.00th=[ 1519], 95.00th=[ 1653], | 99.00th=[ 2089], 99.50th=[ 2165], 99.90th=[ 2400], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 7, max= 128, per=25.32%, avg=58.48, stdev=28.44, samples=344 iops : min= 1, max= 32, avg=14.13, stdev= 7.11, samples=344 lat (msec) : 250=0.62%, 500=0.16%, 750=9.10%, 1000=30.39%, 2000=58.28% lat (msec) : >=2000=1.45% cpu : usr=0.04%, sys=0.30%, ctx=2284, 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=232KiB/s (237kB/s), 57.9KiB/s-58.2KiB/s (59.3kB/s-59.6kB/s), io=40.0MiB (41.9MB), run=175803-176758msec 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=145402: Sat Jul 4 00:45:06 2026 read: IOPS=9, BW=39.5KiB/s (40.5kB/s)(5048KiB/127689msec) slat (usec): min=58, max=64500, avg=16136.72, stdev=8886.28 clat (msec): min=10, max=1696, avg=495.82, stdev=159.87 lat (msec): min=14, max=1704, avg=511.97, stdev=161.79 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 296], 10.00th=[ 330], 20.00th=[ 376], | 30.00th=[ 414], 40.00th=[ 447], 50.00th=[ 477], 60.00th=[ 514], | 70.00th=[ 550], 80.00th=[ 600], 90.00th=[ 684], 95.00th=[ 776], | 99.00th=[ 961], 99.50th=[ 1070], 99.90th=[ 1569], 99.95th=[ 1703], | 99.99th=[ 1703] bw ( KiB/s): min= 7, max= 112, per=25.28%, avg=39.44, stdev=20.32, samples=250 iops : min= 1, max= 28, avg= 9.33, stdev= 5.12, samples=250 write: IOPS=10, BW=40.7KiB/s (41.6kB/s)(5192KiB/127689msec); 0 zone resets slat (usec): min=53, max=11774, avg=417.63, stdev=922.22 clat (msec): min=120, max=2766, avg=1074.70, stdev=347.84 lat (msec): min=120, max=2767, avg=1075.12, stdev=347.81 clat percentiles (msec): | 1.00th=[ 347], 5.00th=[ 558], 10.00th=[ 667], 20.00th=[ 818], | 30.00th=[ 902], 40.00th=[ 986], 50.00th=[ 1045], 60.00th=[ 1116], | 70.00th=[ 1183], 80.00th=[ 1301], 90.00th=[ 1536], 95.00th=[ 1703], | 99.00th=[ 2106], 99.50th=[ 2333], 99.90th=[ 2769], 99.95th=[ 2769], | 99.99th=[ 2769] bw ( KiB/s): min= 7, max= 122, per=24.80%, avg=40.43, stdev=19.94, samples=250 iops : min= 1, max= 30, avg= 9.57, stdev= 4.99, samples=250 lat (msec) : 20=0.08%, 50=0.12%, 100=0.08%, 250=1.21%, 500=28.32% lat (msec) : 750=23.44%, 1000=17.03%, 2000=28.91%, >=2000=0.82% cpu : usr=0.10%, sys=0.68%, ctx=4930, 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=145403: Sat Jul 4 00:45:06 2026 read: IOPS=9, BW=38.8KiB/s (39.8kB/s)(4976KiB/128123msec) slat (usec): min=2969, max=60563, avg=16548.18, stdev=8620.90 clat (msec): min=20, max=1056, avg=497.75, stdev=138.68 lat (msec): min=35, max=1095, avg=514.31, stdev=140.47 clat percentiles (msec): | 1.00th=[ 232], 5.00th=[ 309], 10.00th=[ 342], 20.00th=[ 384], | 30.00th=[ 418], 40.00th=[ 447], 50.00th=[ 481], 60.00th=[ 514], | 70.00th=[ 558], 80.00th=[ 600], 90.00th=[ 693], 95.00th=[ 768], | 99.00th=[ 877], 99.50th=[ 902], 99.90th=[ 1003], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 7, max= 120, per=24.53%, avg=38.27, stdev=20.02, samples=252 iops : min= 1, max= 30, avg= 9.03, stdev= 5.04, samples=252 write: IOPS=10, BW=41.1KiB/s (42.1kB/s)(5264KiB/128123msec); 0 zone resets slat (usec): min=56, max=29424, avg=488.29, stdev=1501.58 clat (msec): min=121, max=2337, avg=1069.34, stdev=339.08 lat (msec): min=129, max=2338, avg=1069.83, stdev=339.10 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 535], 10.00th=[ 659], 20.00th=[ 802], | 30.00th=[ 894], 40.00th=[ 978], 50.00th=[ 1036], 60.00th=[ 1116], | 70.00th=[ 1200], 80.00th=[ 1318], 90.00th=[ 1519], 95.00th=[ 1687], | 99.00th=[ 1972], 99.50th=[ 2123], 99.90th=[ 2333], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 7, max= 111, per=24.90%, avg=40.58, stdev=20.62, samples=252 iops : min= 1, max= 27, avg= 9.60, stdev= 5.19, samples=252 lat (msec) : 50=0.04%, 100=0.08%, 250=0.86%, 500=28.24%, 750=24.65% lat (msec) : 1000=16.68%, 2000=28.95%, >=2000=0.51% cpu : usr=0.09%, sys=0.70%, ctx=4700, 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=145404: Sat Jul 4 00:45:06 2026 read: IOPS=9, BW=38.9KiB/s (39.9kB/s)(4984KiB/128034msec) slat (usec): min=3213, max=62332, avg=16335.08, stdev=8270.47 clat (msec): min=8, max=1078, avg=493.53, stdev=139.52 lat (msec): min=19, max=1107, avg=509.88, stdev=141.44 clat percentiles (msec): | 1.00th=[ 209], 5.00th=[ 305], 10.00th=[ 338], 20.00th=[ 384], | 30.00th=[ 418], 40.00th=[ 443], 50.00th=[ 472], 60.00th=[ 510], | 70.00th=[ 550], 80.00th=[ 600], 90.00th=[ 684], 95.00th=[ 760], | 99.00th=[ 869], 99.50th=[ 911], 99.90th=[ 1003], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7, max= 102, per=25.08%, avg=39.12, stdev=19.76, samples=249 iops : min= 1, max= 25, avg= 9.25, stdev= 5.00, samples=249 write: IOPS=10, BW=41.1KiB/s (42.0kB/s)(5256KiB/128034msec); 0 zone resets slat (usec): min=39, max=16045, avg=457.76, stdev=1164.79 clat (msec): min=128, max=2326, avg=1073.22, stdev=341.34 lat (msec): min=128, max=2326, avg=1073.68, stdev=341.39 clat percentiles (msec): | 1.00th=[ 338], 5.00th=[ 542], 10.00th=[ 659], 20.00th=[ 802], | 30.00th=[ 902], 40.00th=[ 978], 50.00th=[ 1045], 60.00th=[ 1116], | 70.00th=[ 1200], 80.00th=[ 1318], 90.00th=[ 1536], 95.00th=[ 1720], | 99.00th=[ 1989], 99.50th=[ 2106], 99.90th=[ 2299], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 7, max= 96, per=25.11%, avg=40.93, stdev=17.83, samples=250 iops : min= 1, max= 24, avg= 9.69, stdev= 4.49, samples=250 lat (msec) : 10=0.04%, 100=0.16%, 250=0.82%, 500=28.67%, 750=24.34% lat (msec) : 1000=16.99%, 2000=28.48%, >=2000=0.51% cpu : usr=0.10%, sys=0.69%, ctx=4683, 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=145405: Sat Jul 4 00:45:06 2026 read: IOPS=9, BW=39.8KiB/s (40.7kB/s)(5060KiB/127272msec) slat (usec): min=3371, max=59424, avg=16188.15, stdev=8537.34 clat (msec): min=14, max=1748, avg=494.90, stdev=151.79 lat (msec): min=28, max=1775, avg=511.10, stdev=153.32 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 300], 10.00th=[ 338], 20.00th=[ 380], | 30.00th=[ 418], 40.00th=[ 447], 50.00th=[ 472], 60.00th=[ 510], | 70.00th=[ 550], 80.00th=[ 592], 90.00th=[ 676], 95.00th=[ 768], | 99.00th=[ 894], 99.50th=[ 1020], 99.90th=[ 1603], 99.95th=[ 1754], | 99.99th=[ 1754] bw ( KiB/s): min= 7, max= 103, per=26.35%, avg=41.10, stdev=19.65, samples=241 iops : min= 1, max= 25, avg= 9.74, stdev= 4.93, samples=241 write: IOPS=10, BW=40.7KiB/s (41.7kB/s)(5180KiB/127272msec); 0 zone resets slat (usec): min=52, max=13317, avg=427.45, stdev=908.68 clat (msec): min=151, max=2873, avg=1070.40, stdev=349.48 lat (msec): min=151, max=2873, avg=1070.83, stdev=349.44 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 567], 10.00th=[ 684], 20.00th=[ 810], | 30.00th=[ 885], 40.00th=[ 969], 50.00th=[ 1036], 60.00th=[ 1099], | 70.00th=[ 1183], 80.00th=[ 1284], 90.00th=[ 1519], 95.00th=[ 1737], | 99.00th=[ 2140], 99.50th=[ 2500], 99.90th=[ 2702], 99.95th=[ 2869], | 99.99th=[ 2869] bw ( KiB/s): min= 7, max= 120, per=25.25%, avg=41.16, stdev=19.70, samples=245 iops : min= 1, max= 30, avg= 9.75, stdev= 4.94, samples=245 lat (msec) : 20=0.08%, 50=0.20%, 100=0.12%, 250=0.82%, 500=28.28% lat (msec) : 750=24.18%, 1000=18.01%, 2000=27.50%, >=2000=0.82% cpu : usr=0.11%, sys=0.69%, ctx=4838, 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=157KiB/s (160kB/s), 38.8KiB/s-39.8KiB/s (39.8kB/s-40.7kB/s), io=19.6MiB (20.5MB), run=127272-128123msec WRITE: bw=163KiB/s (167kB/s), 40.7KiB/s-41.1KiB/s (41.6kB/s-42.1kB/s), io=20.4MiB (21.4MB), run=127272-128123msec 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=145429: Sat Jul 4 00:45:19 2026 read: IOPS=1, BW=76.5MiB/s (80.2MB/s)(40.0MiB/523msec) slat (nsec): min=53787k, max=53787k, avg=53787296.00, stdev= 0.00 clat (nsec): min=442477k, max=442477k, avg=442477102.00, stdev= 0.00 lat (nsec): min=496270k, max=496270k, avg=496270285.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 443], 10.00th=[ 443], 20.00th=[ 443], | 30.00th=[ 443], 40.00th=[ 443], 50.00th=[ 443], 60.00th=[ 443], | 70.00th=[ 443], 80.00th=[ 443], 90.00th=[ 443], 95.00th=[ 443], | 99.00th=[ 443], 99.50th=[ 443], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] lat (msec) : 500=100.00% cpu : usr=0.19%, sys=3.07%, ctx=32, 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=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=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