== sanity test 398c: run fio to test AIO ================= 05:23:15 (1784280195) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.458173 s, 91.5 MB/s osc.lustre-OST0000-osc-ffff9bf78ae9c800.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=150380: Fri Jul 17 05:25:08 2026 write: IOPS=24, BW=98.5KiB/s (101kB/s)(10.0MiB/103936msec); 0 zone resets slat (usec): min=36, max=12492, avg=268.64, stdev=604.94 clat (msec): min=203, max=1210, avg=648.95, stdev=141.40 lat (msec): min=204, max=1210, avg=649.22, stdev=141.37 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 435], 10.00th=[ 481], 20.00th=[ 542], | 30.00th=[ 584], 40.00th=[ 617], 50.00th=[ 651], 60.00th=[ 676], | 70.00th=[ 709], 80.00th=[ 751], 90.00th=[ 827], 95.00th=[ 885], | 99.00th=[ 1003], 99.50th=[ 1150], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1217] bw ( KiB/s): min= 8, max= 223, per=25.20%, avg=99.05, stdev=27.69, samples=204 iops : min= 2, max= 55, avg=24.34, stdev= 6.93, samples=204 lat (msec) : 250=0.70%, 500=12.62%, 750=66.80%, 1000=18.83%, 2000=1.05% cpu : usr=0.07%, sys=0.41%, ctx=2495, 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=150381: Fri Jul 17 05:25:08 2026 write: IOPS=24, BW=98.5KiB/s (101kB/s)(10.0MiB/104004msec); 0 zone resets slat (usec): min=37, max=12853, avg=285.53, stdev=735.18 clat (msec): min=187, max=1171, avg=648.70, stdev=136.30 lat (msec): min=188, max=1171, avg=648.99, stdev=136.29 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 435], 10.00th=[ 485], 20.00th=[ 542], | 30.00th=[ 575], 40.00th=[ 617], 50.00th=[ 651], 60.00th=[ 676], | 70.00th=[ 709], 80.00th=[ 751], 90.00th=[ 827], 95.00th=[ 877], | 99.00th=[ 986], 99.50th=[ 1062], 99.90th=[ 1133], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 15, max= 253, per=25.35%, avg=99.63, stdev=29.48, samples=203 iops : min= 3, max= 63, avg=24.49, stdev= 7.43, samples=203 lat (msec) : 250=0.70%, 500=10.98%, 750=67.93%, 1000=19.65%, 2000=0.74% cpu : usr=0.08%, sys=0.41%, ctx=2450, 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=150382: Fri Jul 17 05:25:08 2026 write: IOPS=24, BW=98.5KiB/s (101kB/s)(10.0MiB/103984msec); 0 zone resets slat (usec): min=37, max=19619, avg=275.35, stdev=740.15 clat (msec): min=66, max=1131, avg=648.28, stdev=134.61 lat (msec): min=66, max=1131, avg=648.56, stdev=134.58 clat percentiles (msec): | 1.00th=[ 347], 5.00th=[ 426], 10.00th=[ 485], 20.00th=[ 542], | 30.00th=[ 584], 40.00th=[ 617], 50.00th=[ 642], 60.00th=[ 676], | 70.00th=[ 718], 80.00th=[ 751], 90.00th=[ 818], 95.00th=[ 877], | 99.00th=[ 969], 99.50th=[ 1028], 99.90th=[ 1133], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 23, max= 215, per=24.86%, avg=97.70, stdev=27.65, samples=207 iops : min= 5, max= 53, avg=24.00, stdev= 6.92, samples=207 lat (msec) : 100=0.08%, 250=0.27%, 500=12.77%, 750=66.48%, 1000=19.69% lat (msec) : 2000=0.70% cpu : usr=0.07%, sys=0.43%, ctx=2806, 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=150383: Fri Jul 17 05:25:08 2026 write: IOPS=24, BW=98.5KiB/s (101kB/s)(10.0MiB/103999msec); 0 zone resets slat (usec): min=36, max=12464, avg=254.35, stdev=597.57 clat (msec): min=204, max=1139, avg=648.29, stdev=132.20 lat (msec): min=204, max=1139, avg=648.55, stdev=132.20 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 435], 10.00th=[ 485], 20.00th=[ 542], | 30.00th=[ 584], 40.00th=[ 617], 50.00th=[ 651], 60.00th=[ 676], | 70.00th=[ 709], 80.00th=[ 751], 90.00th=[ 818], 95.00th=[ 877], | 99.00th=[ 995], 99.50th=[ 1028], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1133] bw ( KiB/s): min= 16, max= 254, per=24.98%, avg=98.16, stdev=29.86, samples=206 iops : min= 4, max= 63, avg=24.12, stdev= 7.47, samples=206 lat (msec) : 250=0.04%, 500=12.15%, 750=68.05%, 1000=18.91%, 2000=0.86% cpu : usr=0.05%, sys=0.40%, ctx=2465, 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=394KiB/s (403kB/s), 98.5KiB/s-98.5KiB/s (101kB/s-101kB/s), io=40.0MiB (41.9MB), run=103936-104004msec 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=150407: Fri Jul 17 05:26:10 2026 read: IOPS=22, BW=89.7KiB/s (91.9kB/s)(5048KiB/56252msec) slat (usec): min=63, max=34315, avg=7743.00, stdev=4003.04 clat (msec): min=6, max=721, avg=219.15, stdev=58.28 lat (msec): min=13, max=729, avg=226.90, stdev=59.27 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 136], 10.00th=[ 153], 20.00th=[ 174], | 30.00th=[ 190], 40.00th=[ 203], 50.00th=[ 215], 60.00th=[ 228], | 70.00th=[ 243], 80.00th=[ 259], 90.00th=[ 288], 95.00th=[ 317], | 99.00th=[ 376], 99.50th=[ 401], 99.90th=[ 600], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 16, max= 184, per=25.18%, avg=89.66, stdev=33.22, samples=111 iops : min= 4, max= 46, avg=22.06, stdev= 8.33, samples=111 write: IOPS=23, BW=92.3KiB/s (94.5kB/s)(5192KiB/56252msec); 0 zone resets slat (usec): min=48, max=12707, avg=310.11, stdev=656.04 clat (msec): min=94, max=924, avg=471.86, stdev=120.01 lat (msec): min=94, max=924, avg=472.17, stdev=120.02 clat percentiles (msec): | 1.00th=[ 222], 5.00th=[ 271], 10.00th=[ 321], 20.00th=[ 376], | 30.00th=[ 414], 40.00th=[ 443], 50.00th=[ 468], 60.00th=[ 498], | 70.00th=[ 527], 80.00th=[ 567], 90.00th=[ 625], 95.00th=[ 684], | 99.00th=[ 802], 99.50th=[ 835], 99.90th=[ 860], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 39, max= 160, per=24.87%, avg=92.04, stdev=25.46, samples=111 iops : min= 9, max= 40, avg=22.67, stdev= 6.48, samples=111 lat (msec) : 10=0.04%, 50=0.20%, 100=0.23%, 250=37.38%, 500=42.50% lat (msec) : 750=18.67%, 1000=0.98% cpu : usr=0.12%, sys=1.04%, ctx=5109, 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=150408: Fri Jul 17 05:26:10 2026 read: IOPS=22, BW=88.6KiB/s (90.7kB/s)(4976KiB/56175msec) slat (usec): min=1984, max=27141, avg=7647.88, stdev=3894.55 clat (msec): min=13, max=770, avg=219.80, stdev=61.26 lat (msec): min=23, max=775, avg=227.45, stdev=61.85 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 140], 10.00th=[ 157], 20.00th=[ 174], | 30.00th=[ 190], 40.00th=[ 205], 50.00th=[ 215], 60.00th=[ 230], | 70.00th=[ 245], 80.00th=[ 262], 90.00th=[ 284], 95.00th=[ 313], | 99.00th=[ 372], 99.50th=[ 518], 99.90th=[ 726], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 23, max= 166, per=24.86%, avg=88.50, stdev=31.24, samples=111 iops : min= 5, max= 41, avg=21.77, stdev= 7.93, samples=111 write: IOPS=23, BW=93.7KiB/s (95.0kB/s)(5264KiB/56175msec); 0 zone resets slat (usec): min=36, max=11050, avg=300.34, stdev=653.80 clat (msec): min=82, max=993, avg=466.22, stdev=122.62 lat (msec): min=87, max=993, avg=466.52, stdev=122.61 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 271], 10.00th=[ 313], 20.00th=[ 372], | 30.00th=[ 405], 40.00th=[ 439], 50.00th=[ 460], 60.00th=[ 485], | 70.00th=[ 518], 80.00th=[ 558], 90.00th=[ 625], 95.00th=[ 667], | 99.00th=[ 776], 99.50th=[ 835], 99.90th=[ 995], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 39, max= 160, per=25.28%, avg=93.53, stdev=27.08, samples=111 iops : min= 9, max= 40, avg=23.04, stdev= 6.83, samples=111 lat (msec) : 20=0.08%, 50=0.31%, 100=0.16%, 250=37.11%, 500=43.71% lat (msec) : 750=17.54%, 1000=1.09% cpu : usr=0.16%, sys=1.09%, ctx=5259, 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=150409: Fri Jul 17 05:26:10 2026 read: IOPS=22, BW=88.5KiB/s (90.6kB/s)(4984KiB/56331msec) slat (usec): min=1894, max=35499, avg=7991.36, stdev=4142.91 clat (msec): min=11, max=435, avg=219.34, stdev=52.81 lat (msec): min=27, max=438, avg=227.34, stdev=53.74 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 144], 10.00th=[ 159], 20.00th=[ 176], | 30.00th=[ 190], 40.00th=[ 205], 50.00th=[ 218], 60.00th=[ 228], | 70.00th=[ 243], 80.00th=[ 262], 90.00th=[ 288], 95.00th=[ 313], | 99.00th=[ 363], 99.50th=[ 372], 99.90th=[ 384], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 31, max= 176, per=24.71%, avg=87.98, stdev=32.23, samples=112 iops : min= 7, max= 44, avg=21.65, stdev= 8.12, samples=112 write: IOPS=23, BW=93.3KiB/s (95.5kB/s)(5256KiB/56331msec); 0 zone resets slat (usec): min=44, max=5568, avg=282.46, stdev=459.90 clat (msec): min=66, max=868, avg=468.52, stdev=122.65 lat (msec): min=67, max=869, avg=468.81, stdev=122.64 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 268], 10.00th=[ 313], 20.00th=[ 372], | 30.00th=[ 409], 40.00th=[ 439], 50.00th=[ 464], 60.00th=[ 489], | 70.00th=[ 523], 80.00th=[ 558], 90.00th=[ 634], 95.00th=[ 693], | 99.00th=[ 802], 99.50th=[ 835], 99.90th=[ 844], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 40, max= 159, per=25.00%, avg=92.50, stdev=22.91, samples=112 iops : min= 10, max= 39, avg=22.79, stdev= 5.81, samples=112 lat (msec) : 20=0.04%, 50=0.27%, 100=0.31%, 250=37.11%, 500=43.71% lat (msec) : 750=17.42%, 1000=1.13% cpu : usr=0.13%, sys=1.02%, ctx=5154, 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=150410: Fri Jul 17 05:26:10 2026 read: IOPS=22, BW=89.9KiB/s (92.1kB/s)(5060KiB/56259msec) slat (usec): min=2117, max=26140, avg=7745.45, stdev=3891.39 clat (msec): min=7, max=631, avg=217.59, stdev=57.46 lat (msec): min=14, max=637, avg=225.34, stdev=58.25 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 138], 10.00th=[ 157], 20.00th=[ 174], | 30.00th=[ 186], 40.00th=[ 203], 50.00th=[ 215], 60.00th=[ 228], | 70.00th=[ 243], 80.00th=[ 257], 90.00th=[ 288], 95.00th=[ 313], | 99.00th=[ 372], 99.50th=[ 384], 99.90th=[ 625], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 15, max= 168, per=25.27%, avg=89.96, stdev=32.31, samples=111 iops : min= 3, max= 42, avg=22.14, stdev= 8.15, samples=111 write: IOPS=23, BW=92.1KiB/s (94.3kB/s)(5180KiB/56259msec); 0 zone resets slat (usec): min=54, max=7754, avg=260.39, stdev=408.96 clat (msec): min=201, max=933, avg=472.85, stdev=119.26 lat (msec): min=201, max=933, avg=473.11, stdev=119.27 clat percentiles (msec): | 1.00th=[ 228], 5.00th=[ 284], 10.00th=[ 330], 20.00th=[ 376], | 30.00th=[ 409], 40.00th=[ 439], 50.00th=[ 464], 60.00th=[ 489], | 70.00th=[ 518], 80.00th=[ 567], 90.00th=[ 642], 95.00th=[ 693], | 99.00th=[ 776], 99.50th=[ 810], 99.90th=[ 911], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 39, max= 167, per=24.79%, avg=91.74, stdev=23.82, samples=111 iops : min= 9, max= 41, avg=22.59, stdev= 6.02, samples=111 lat (msec) : 10=0.04%, 20=0.16%, 50=0.16%, 100=0.08%, 250=37.66% lat (msec) : 500=43.59%, 750=17.30%, 1000=1.02% cpu : usr=0.15%, sys=1.06%, ctx=5461, 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=356KiB/s (365kB/s), 88.5KiB/s-89.9KiB/s (90.6kB/s-92.1kB/s), io=19.6MiB (20.5MB), run=56175-56331msec WRITE: bw=371KiB/s (380kB/s), 92.1KiB/s-93.7KiB/s (94.3kB/s-95.0kB/s), io=20.4MiB (21.4MB), run=56175-56331msec 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=150422: Fri Jul 17 05:26:15 2026 read: IOPS=3, BW=144MiB/s (151MB/s)(40.0MiB/277msec) slat (nsec): min=19996k, max=19996k, avg=19996169.00, stdev= 0.00 clat (nsec): min=247134k, max=247134k, avg=247134284.00, stdev= 0.00 lat (nsec): min=267135k, max=267135k, avg=267135081.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 247], 5.00th=[ 247], 10.00th=[ 247], 20.00th=[ 247], | 30.00th=[ 247], 40.00th=[ 247], 50.00th=[ 247], 60.00th=[ 247], | 70.00th=[ 247], 80.00th=[ 247], 90.00th=[ 247], 95.00th=[ 247], | 99.00th=[ 247], 99.50th=[ 247], 99.90th=[ 247], 99.95th=[ 247], | 99.99th=[ 247] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=2.54%, ctx=42, 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=144MiB/s (151MB/s), 144MiB/s-144MiB/s (151MB/s-151MB/s), io=40.0MiB (41.9MB), run=277-277msec 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