== sanity test 398c: run fio to test AIO ================= 12:13:28 (1788538408) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.444096 s, 94.4 MB/s osc.lustre-OST0000-osc-ffff989eb1893000.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=145332: Fri Sep 4 12:16:47 2026 write: IOPS=13, BW=54.3KiB/s (55.6kB/s)(10.0MiB/188573msec); 0 zone resets slat (usec): min=23, max=13906, avg=254.93, stdev=851.56 clat (msec): min=207, max=2819, avg=1177.92, stdev=421.70 lat (msec): min=207, max=2819, avg=1178.18, stdev=421.68 clat percentiles (msec): | 1.00th=[ 313], 5.00th=[ 651], 10.00th=[ 743], 20.00th=[ 835], | 30.00th=[ 936], 40.00th=[ 1020], 50.00th=[ 1099], 60.00th=[ 1200], | 70.00th=[ 1334], 80.00th=[ 1502], 90.00th=[ 1787], 95.00th=[ 1955], | 99.00th=[ 2500], 99.50th=[ 2635], 99.90th=[ 2802], 99.95th=[ 2836], | 99.99th=[ 2836] bw ( KiB/s): min= 7, max= 216, per=25.12%, avg=54.25, stdev=27.09, samples=370 iops : min= 1, max= 54, avg=13.08, stdev= 6.83, samples=370 lat (msec) : 250=0.74%, 500=2.58%, 750=7.70%, 1000=26.56%, 2000=58.40% lat (msec) : >=2000=4.02% cpu : usr=0.04%, sys=0.21%, ctx=1999, 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=145333: Fri Sep 4 12:16:47 2026 write: IOPS=13, BW=54.2KiB/s (55.5kB/s)(10.0MiB/188869msec); 0 zone resets slat (usec): min=30, max=10868, avg=242.41, stdev=733.83 clat (msec): min=263, max=2928, avg=1179.43, stdev=417.99 lat (msec): min=263, max=2928, avg=1179.68, stdev=417.95 clat percentiles (msec): | 1.00th=[ 359], 5.00th=[ 667], 10.00th=[ 751], 20.00th=[ 844], | 30.00th=[ 936], 40.00th=[ 1020], 50.00th=[ 1099], 60.00th=[ 1200], | 70.00th=[ 1318], 80.00th=[ 1502], 90.00th=[ 1787], 95.00th=[ 1955], | 99.00th=[ 2366], 99.50th=[ 2668], 99.90th=[ 2802], 99.95th=[ 2937], | 99.99th=[ 2937] bw ( KiB/s): min= 7, max= 152, per=25.85%, avg=55.84, stdev=27.49, samples=360 iops : min= 1, max= 38, avg=13.48, stdev= 6.90, samples=360 lat (msec) : 500=3.05%, 750=7.07%, 1000=28.28%, 2000=57.34%, >=2000=4.26% cpu : usr=0.04%, sys=0.19%, ctx=1822, 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=145334: Fri Sep 4 12:16:47 2026 write: IOPS=13, BW=54.3KiB/s (55.6kB/s)(10.0MiB/188692msec); 0 zone resets slat (usec): min=29, max=15592, avg=236.03, stdev=903.23 clat (msec): min=213, max=2903, avg=1178.78, stdev=423.73 lat (msec): min=213, max=2903, avg=1179.02, stdev=423.69 clat percentiles (msec): | 1.00th=[ 313], 5.00th=[ 659], 10.00th=[ 743], 20.00th=[ 835], | 30.00th=[ 927], 40.00th=[ 1011], 50.00th=[ 1099], 60.00th=[ 1217], | 70.00th=[ 1334], 80.00th=[ 1502], 90.00th=[ 1770], 95.00th=[ 1955], | 99.00th=[ 2500], 99.50th=[ 2635], 99.90th=[ 2869], 99.95th=[ 2903], | 99.99th=[ 2903] bw ( KiB/s): min= 7, max= 219, per=26.05%, avg=56.26, stdev=30.50, samples=357 iops : min= 1, max= 54, avg=13.58, stdev= 7.68, samples=357 lat (msec) : 250=0.62%, 500=2.66%, 750=7.27%, 1000=28.16%, 2000=56.99% lat (msec) : >=2000=4.30% cpu : usr=0.05%, sys=0.18%, ctx=1618, 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=145335: Fri Sep 4 12:16:47 2026 write: IOPS=13, BW=54.2KiB/s (55.5kB/s)(10.0MiB/188783msec); 0 zone resets slat (usec): min=24, max=19607, avg=275.40, stdev=1033.04 clat (msec): min=84, max=2842, avg=1179.15, stdev=428.63 lat (msec): min=85, max=2843, avg=1179.43, stdev=428.60 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 659], 10.00th=[ 726], 20.00th=[ 835], | 30.00th=[ 936], 40.00th=[ 1011], 50.00th=[ 1099], 60.00th=[ 1200], | 70.00th=[ 1318], 80.00th=[ 1502], 90.00th=[ 1804], 95.00th=[ 1972], | 99.00th=[ 2500], 99.50th=[ 2668], 99.90th=[ 2802], 99.95th=[ 2836], | 99.99th=[ 2836] bw ( KiB/s): min= 7, max= 206, per=25.82%, avg=55.78, stdev=28.47, samples=360 iops : min= 1, max= 51, avg=13.46, stdev= 7.16, samples=360 lat (msec) : 100=0.04%, 250=0.39%, 500=3.01%, 750=7.89%, 1000=26.72% lat (msec) : 2000=57.34%, >=2000=4.61% cpu : usr=0.04%, sys=0.20%, ctx=2084, 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=217KiB/s (222kB/s), 54.2KiB/s-54.3KiB/s (55.5kB/s-55.6kB/s), io=40.0MiB (41.9MB), run=188573-188869msec 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=145372: Fri Sep 4 12:18:41 2026 read: IOPS=11, BW=46.7KiB/s (47.9kB/s)(5048KiB/107982msec) slat (usec): min=26, max=63937, avg=13977.74, stdev=7646.43 clat (msec): min=50, max=1092, avg=428.64, stdev=114.99 lat (msec): min=61, max=1097, avg=442.63, stdev=116.16 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 275], 10.00th=[ 305], 20.00th=[ 342], | 30.00th=[ 368], 40.00th=[ 393], 50.00th=[ 418], 60.00th=[ 443], | 70.00th=[ 472], 80.00th=[ 514], 90.00th=[ 567], 95.00th=[ 625], | 99.00th=[ 768], 99.50th=[ 860], 99.90th=[ 986], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 7, max= 112, per=25.37%, avg=46.68, stdev=21.12, samples=212 iops : min= 1, max= 28, avg=11.19, stdev= 5.35, samples=212 write: IOPS=12, BW=48.1KiB/s (49.2kB/s)(5192KiB/107982msec); 0 zone resets slat (usec): min=31, max=18285, avg=348.81, stdev=982.87 clat (msec): min=156, max=1736, avg=899.51, stdev=241.77 lat (msec): min=156, max=1736, avg=899.87, stdev=241.74 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 558], 10.00th=[ 625], 20.00th=[ 701], | 30.00th=[ 768], 40.00th=[ 818], 50.00th=[ 869], 60.00th=[ 927], | 70.00th=[ 995], 80.00th=[ 1070], 90.00th=[ 1250], 95.00th=[ 1385], | 99.00th=[ 1569], 99.50th=[ 1670], 99.90th=[ 1720], 99.95th=[ 1737], | 99.99th=[ 1737] bw ( KiB/s): min= 7, max= 111, per=24.86%, avg=47.72, stdev=19.08, samples=213 iops : min= 1, max= 27, avg=11.46, stdev= 4.82, samples=213 lat (msec) : 100=0.27%, 250=1.25%, 500=38.01%, 750=22.89%, 1000=22.42% lat (msec) : 2000=15.16% cpu : usr=0.10%, sys=0.68%, ctx=4544, 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=145373: Fri Sep 4 12:18:41 2026 read: IOPS=11, BW=45.8KiB/s (46.9kB/s)(4976KiB/108688msec) slat (usec): min=2964, max=71739, avg=14163.53, stdev=7653.99 clat (msec): min=21, max=836, avg=428.25, stdev=110.59 lat (msec): min=26, max=860, avg=442.42, stdev=111.69 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 275], 10.00th=[ 305], 20.00th=[ 347], | 30.00th=[ 372], 40.00th=[ 397], 50.00th=[ 418], 60.00th=[ 439], | 70.00th=[ 477], 80.00th=[ 514], 90.00th=[ 567], 95.00th=[ 617], | 99.00th=[ 768], 99.50th=[ 785], 99.90th=[ 835], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 7, max= 111, per=24.70%, avg=45.45, stdev=21.38, samples=214 iops : min= 1, max= 27, avg=10.88, stdev= 5.38, samples=214 write: IOPS=12, BW=48.4KiB/s (49.6kB/s)(5264KiB/108688msec); 0 zone resets slat (usec): min=33, max=23757, avg=308.95, stdev=1017.27 clat (msec): min=117, max=1699, avg=900.99, stdev=241.64 lat (msec): min=117, max=1699, avg=901.30, stdev=241.65 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 550], 10.00th=[ 617], 20.00th=[ 709], | 30.00th=[ 768], 40.00th=[ 827], 50.00th=[ 877], 60.00th=[ 936], | 70.00th=[ 1003], 80.00th=[ 1070], 90.00th=[ 1234], 95.00th=[ 1385], | 99.00th=[ 1586], 99.50th=[ 1620], 99.90th=[ 1670], 99.95th=[ 1703], | 99.99th=[ 1703] bw ( KiB/s): min= 7, max= 104, per=24.93%, avg=47.86, stdev=19.40, samples=216 iops : min= 1, max= 26, avg=11.48, stdev= 4.90, samples=216 lat (msec) : 50=0.12%, 100=0.31%, 250=0.98%, 500=37.30%, 750=22.97% lat (msec) : 1000=23.05%, 2000=15.27% cpu : usr=0.11%, sys=0.64%, ctx=4601, 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=145374: Fri Sep 4 12:18:41 2026 read: IOPS=11, BW=45.9KiB/s (46.0kB/s)(4984KiB/108606msec) slat (usec): min=3041, max=74666, avg=14398.60, stdev=8003.86 clat (msec): min=22, max=824, avg=425.33, stdev=105.96 lat (msec): min=35, max=844, avg=439.74, stdev=107.54 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 275], 10.00th=[ 305], 20.00th=[ 342], | 30.00th=[ 368], 40.00th=[ 397], 50.00th=[ 418], 60.00th=[ 439], | 70.00th=[ 468], 80.00th=[ 506], 90.00th=[ 558], 95.00th=[ 609], | 99.00th=[ 743], 99.50th=[ 785], 99.90th=[ 818], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 7, max= 135, per=24.64%, avg=45.33, stdev=22.80, samples=216 iops : min= 1, max= 33, avg=10.85, stdev= 5.71, samples=216 write: IOPS=12, BW=48.4KiB/s (49.6kB/s)(5256KiB/108606msec); 0 zone resets slat (usec): min=38, max=15282, avg=326.27, stdev=975.21 clat (msec): min=215, max=1675, avg=902.76, stdev=240.84 lat (msec): min=215, max=1675, avg=903.09, stdev=240.87 clat percentiles (msec): | 1.00th=[ 489], 5.00th=[ 558], 10.00th=[ 617], 20.00th=[ 709], | 30.00th=[ 760], 40.00th=[ 818], 50.00th=[ 860], 60.00th=[ 927], | 70.00th=[ 1003], 80.00th=[ 1083], 90.00th=[ 1234], 95.00th=[ 1401], | 99.00th=[ 1586], 99.50th=[ 1636], 99.90th=[ 1670], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 7, max= 103, per=24.91%, avg=47.82, stdev=17.63, samples=215 iops : min= 1, max= 25, avg=11.47, stdev= 4.44, samples=215 lat (msec) : 50=0.12%, 100=0.16%, 250=1.13%, 500=37.46%, 750=23.44% lat (msec) : 1000=22.42%, 2000=15.27% cpu : usr=0.11%, sys=0.70%, ctx=4592, 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=145375: Fri Sep 4 12:18:41 2026 read: IOPS=11, BW=46.8KiB/s (47.9kB/s)(5060KiB/108202msec) slat (usec): min=2908, max=57252, avg=14228.09, stdev=7893.33 clat (msec): min=41, max=990, avg=428.47, stdev=112.83 lat (msec): min=50, max=1009, avg=442.71, stdev=114.07 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 279], 10.00th=[ 313], 20.00th=[ 342], | 30.00th=[ 368], 40.00th=[ 388], 50.00th=[ 414], 60.00th=[ 439], | 70.00th=[ 472], 80.00th=[ 510], 90.00th=[ 567], 95.00th=[ 625], | 99.00th=[ 802], 99.50th=[ 818], 99.90th=[ 919], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 7, max= 119, per=25.33%, avg=46.61, stdev=22.11, samples=213 iops : min= 1, max= 29, avg=11.17, stdev= 5.57, samples=213 write: IOPS=11, BW=47.9KiB/s (49.0kB/s)(5180KiB/108202msec); 0 zone resets slat (usec): min=31, max=14213, avg=283.02, stdev=651.83 clat (msec): min=114, max=1813, avg=901.71, stdev=242.97 lat (msec): min=115, max=1815, avg=902.00, stdev=242.96 clat percentiles (msec): | 1.00th=[ 472], 5.00th=[ 567], 10.00th=[ 634], 20.00th=[ 701], | 30.00th=[ 760], 40.00th=[ 810], 50.00th=[ 869], 60.00th=[ 919], | 70.00th=[ 995], 80.00th=[ 1083], 90.00th=[ 1217], 95.00th=[ 1368], | 99.00th=[ 1586], 99.50th=[ 1670], 99.90th=[ 1737], 99.95th=[ 1821], | 99.99th=[ 1821] bw ( KiB/s): min= 7, max= 119, per=24.57%, avg=47.17, stdev=19.91, samples=215 iops : min= 1, max= 29, avg=11.31, stdev= 5.01, samples=215 lat (msec) : 50=0.04%, 100=0.31%, 250=1.13%, 500=37.46%, 750=23.67% lat (msec) : 1000=22.42%, 2000=14.96% cpu : usr=0.10%, sys=0.64%, ctx=4591, 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=185KiB/s (189kB/s), 45.8KiB/s-46.8KiB/s (46.9kB/s-47.9kB/s), io=19.6MiB (20.5MB), run=107982-108688msec WRITE: bw=192KiB/s (197kB/s), 47.9KiB/s-48.4KiB/s (49.0kB/s-49.6kB/s), io=20.4MiB (21.4MB), run=107982-108688msec 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=145396: Fri Sep 4 12:18:56 2026 read: IOPS=1, BW=60.6MiB/s (63.6MB/s)(40.0MiB/660msec) slat (nsec): min=48988k, max=48988k, avg=48988284.00, stdev= 0.00 clat (nsec): min=579021k, max=579021k, avg=579020804.00, stdev= 0.00 lat (nsec): min=628014k, max=628014k, avg=628013722.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 584], 5.00th=[ 584], 10.00th=[ 584], 20.00th=[ 584], | 30.00th=[ 584], 40.00th=[ 584], 50.00th=[ 584], 60.00th=[ 584], | 70.00th=[ 584], 80.00th=[ 584], 90.00th=[ 584], 95.00th=[ 584], | 99.00th=[ 584], 99.50th=[ 584], 99.90th=[ 584], 99.95th=[ 584], | 99.99th=[ 584] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.67%, ctx=43, 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=60.6MiB/s (63.6MB/s), 60.6MiB/s-60.6MiB/s (63.6MB/s-63.6MB/s), io=40.0MiB (41.9MB), run=660-660msec 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