== sanity test 398c: run fio to test AIO ================= 12:25:06 (1776183906) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.457672 s, 91.6 MB/s osc.lustre-OST0000-osc-ffff920e46776000.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=148054: Tue Apr 14 12:25:36 2026 write: IOPS=114, BW=460KiB/s (471kB/s)(10.0MiB/22272msec); 0 zone resets slat (usec): min=22, max=12761, avg=252.22, stdev=804.19 clat (msec): min=20, max=279, avg=138.67, stdev=35.07 lat (msec): min=20, max=279, avg=138.93, stdev=35.09 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 90], 10.00th=[ 99], 20.00th=[ 109], | 30.00th=[ 118], 40.00th=[ 128], 50.00th=[ 136], 60.00th=[ 144], | 70.00th=[ 155], 80.00th=[ 167], 90.00th=[ 182], 95.00th=[ 199], | 99.00th=[ 236], 99.50th=[ 275], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 288, max= 650, per=24.93%, avg=458.30, stdev=89.58, samples=44 iops : min= 72, max= 162, avg=114.23, stdev=22.41, samples=44 lat (msec) : 50=0.35%, 100=12.03%, 250=86.84%, 500=0.78% cpu : usr=0.30%, sys=1.43%, ctx=1530, 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=148055: Tue Apr 14 12:25:36 2026 write: IOPS=114, BW=460KiB/s (471kB/s)(10.0MiB/22283msec); 0 zone resets slat (usec): min=22, max=12753, avg=231.26, stdev=735.32 clat (msec): min=14, max=261, avg=138.67, stdev=32.13 lat (msec): min=14, max=262, avg=138.91, stdev=32.12 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 93], 10.00th=[ 101], 20.00th=[ 111], | 30.00th=[ 118], 40.00th=[ 128], 50.00th=[ 138], 60.00th=[ 146], | 70.00th=[ 157], 80.00th=[ 167], 90.00th=[ 182], 95.00th=[ 197], | 99.00th=[ 222], 99.50th=[ 230], 99.90th=[ 239], 99.95th=[ 239], | 99.99th=[ 262] bw ( KiB/s): min= 310, max= 638, per=24.95%, avg=458.55, stdev=71.85, samples=44 iops : min= 77, max= 159, avg=114.30, stdev=18.03, samples=44 lat (msec) : 20=0.04%, 50=0.04%, 100=10.20%, 250=89.69%, 500=0.04% cpu : usr=0.26%, sys=1.34%, ctx=1379, 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=148056: Tue Apr 14 12:25:36 2026 write: IOPS=114, BW=460KiB/s (471kB/s)(10.0MiB/22272msec); 0 zone resets slat (usec): min=22, max=12525, avg=196.97, stdev=633.87 clat (msec): min=19, max=292, avg=138.65, stdev=32.81 lat (msec): min=19, max=292, avg=138.85, stdev=32.80 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 91], 10.00th=[ 99], 20.00th=[ 111], | 30.00th=[ 118], 40.00th=[ 127], 50.00th=[ 136], 60.00th=[ 146], | 70.00th=[ 157], 80.00th=[ 167], 90.00th=[ 180], 95.00th=[ 197], | 99.00th=[ 224], 99.50th=[ 234], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 294, max= 638, per=24.96%, avg=458.73, stdev=82.50, samples=44 iops : min= 73, max= 159, avg=114.32, stdev=20.70, samples=44 lat (msec) : 20=0.04%, 50=0.08%, 100=11.05%, 250=88.67%, 500=0.16% cpu : usr=0.24%, sys=1.14%, ctx=1190, 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=148057: Tue Apr 14 12:25:36 2026 write: IOPS=115, BW=464KiB/s (475kB/s)(10.0MiB/22088msec); 0 zone resets slat (usec): min=22, max=13315, avg=223.41, stdev=707.71 clat (msec): min=13, max=277, avg=137.68, stdev=34.70 lat (msec): min=13, max=277, avg=137.91, stdev=34.67 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 87], 10.00th=[ 97], 20.00th=[ 109], | 30.00th=[ 118], 40.00th=[ 128], 50.00th=[ 136], 60.00th=[ 146], | 70.00th=[ 155], 80.00th=[ 165], 90.00th=[ 182], 95.00th=[ 199], | 99.00th=[ 230], 99.50th=[ 232], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 271, max= 662, per=25.25%, avg=464.14, stdev=89.18, samples=43 iops : min= 67, max= 165, avg=115.67, stdev=22.36, samples=43 lat (msec) : 20=0.12%, 50=0.66%, 100=11.95%, 250=86.99%, 500=0.27% cpu : usr=0.24%, sys=1.17%, ctx=1269, 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=1838KiB/s (1882kB/s), 460KiB/s-464KiB/s (471kB/s-475kB/s), io=40.0MiB (41.9MB), run=22088-22283msec 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=148070: Tue Apr 14 12:26:02 2026 read: IOPS=70, BW=282KiB/s (288kB/s)(5048KiB/17921msec) slat (usec): min=36, max=30201, avg=7772.79, stdev=4088.10 clat (msec): min=15, max=195, avg=105.49, stdev=24.37 lat (msec): min=15, max=205, avg=113.27, stdev=25.42 clat percentiles (msec): | 1.00th=[ 60], 5.00th=[ 72], 10.00th=[ 78], 20.00th=[ 86], | 30.00th=[ 92], 40.00th=[ 97], 50.00th=[ 103], 60.00th=[ 110], | 70.00th=[ 116], 80.00th=[ 126], 90.00th=[ 138], 95.00th=[ 148], | 99.00th=[ 176], 99.50th=[ 180], 99.90th=[ 192], 99.95th=[ 197], | 99.99th=[ 197] bw ( KiB/s): min= 184, max= 342, per=25.20%, avg=280.49, stdev=46.14, samples=35 iops : min= 46, max= 85, avg=69.86, stdev=11.47, samples=35 write: IOPS=72, BW=290KiB/s (297kB/s)(5192KiB/17921msec); 0 zone resets slat (usec): min=27, max=11342, avg=243.14, stdev=700.09 clat (msec): min=24, max=193, avg=110.25, stdev=23.06 lat (msec): min=25, max=193, avg=110.50, stdev=23.06 clat percentiles (msec): | 1.00th=[ 68], 5.00th=[ 79], 10.00th=[ 84], 20.00th=[ 91], | 30.00th=[ 97], 40.00th=[ 103], 50.00th=[ 107], 60.00th=[ 113], | 70.00th=[ 121], 80.00th=[ 130], 90.00th=[ 142], 95.00th=[ 153], | 99.00th=[ 176], 99.50th=[ 182], 99.90th=[ 190], 99.95th=[ 194], | 99.99th=[ 194] bw ( KiB/s): min= 215, max= 368, per=24.99%, avg=289.63, stdev=42.71, samples=35 iops : min= 53, max= 92, avg=72.11, stdev=10.65, samples=35 lat (msec) : 20=0.23%, 50=0.16%, 100=39.96%, 250=59.65% cpu : usr=0.36%, sys=2.54%, ctx=2285, majf=0, minf=15 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=148071: Tue Apr 14 12:26:02 2026 read: IOPS=69, BW=278KiB/s (285kB/s)(4976KiB/17895msec) slat (usec): min=65, max=35003, avg=7702.82, stdev=4106.08 clat (msec): min=6, max=193, avg=104.90, stdev=23.10 lat (msec): min=6, max=201, avg=112.61, stdev=24.17 clat percentiles (msec): | 1.00th=[ 63], 5.00th=[ 71], 10.00th=[ 79], 20.00th=[ 86], | 30.00th=[ 92], 40.00th=[ 97], 50.00th=[ 103], 60.00th=[ 108], | 70.00th=[ 114], 80.00th=[ 123], 90.00th=[ 136], 95.00th=[ 148], | 99.00th=[ 169], 99.50th=[ 180], 99.90th=[ 192], 99.95th=[ 194], | 99.99th=[ 194] bw ( KiB/s): min= 200, max= 376, per=24.86%, avg=276.74, stdev=40.25, samples=35 iops : min= 50, max= 94, avg=68.89, stdev=10.07, samples=35 write: IOPS=73, BW=294KiB/s (301kB/s)(5264KiB/17895msec); 0 zone resets slat (usec): min=20, max=6945, avg=213.04, stdev=533.54 clat (msec): min=16, max=191, avg=110.48, stdev=23.46 lat (msec): min=17, max=191, avg=110.69, stdev=23.44 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 79], 10.00th=[ 84], 20.00th=[ 91], | 30.00th=[ 96], 40.00th=[ 102], 50.00th=[ 108], 60.00th=[ 113], | 70.00th=[ 120], 80.00th=[ 130], 90.00th=[ 144], 95.00th=[ 157], | 99.00th=[ 176], 99.50th=[ 182], 99.90th=[ 188], 99.95th=[ 192], | 99.99th=[ 192] bw ( KiB/s): min= 191, max= 384, per=25.43%, avg=294.77, stdev=50.91, samples=35 iops : min= 47, max= 96, avg=73.43, stdev=12.67, samples=35 lat (msec) : 10=0.04%, 20=0.04%, 100=41.13%, 250=58.79% cpu : usr=0.36%, sys=2.65%, ctx=2296, majf=0, minf=15 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=148072: Tue Apr 14 12:26:02 2026 read: IOPS=69, BW=277KiB/s (283kB/s)(4984KiB/18017msec) slat (usec): min=1874, max=38667, avg=7935.51, stdev=4254.71 clat (msec): min=27, max=211, avg=106.20, stdev=23.12 lat (msec): min=35, max=220, avg=114.14, stdev=23.97 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 73], 10.00th=[ 81], 20.00th=[ 88], | 30.00th=[ 93], 40.00th=[ 100], 50.00th=[ 104], 60.00th=[ 110], | 70.00th=[ 116], 80.00th=[ 124], 90.00th=[ 136], 95.00th=[ 148], | 99.00th=[ 174], 99.50th=[ 186], 99.90th=[ 209], 99.95th=[ 213], | 99.99th=[ 213] bw ( KiB/s): min= 176, max= 383, per=24.88%, avg=276.94, stdev=53.67, samples=35 iops : min= 44, max= 95, avg=68.97, stdev=13.39, samples=35 write: IOPS=72, BW=292KiB/s (299kB/s)(5256KiB/18017msec); 0 zone resets slat (usec): min=20, max=8046, avg=251.37, stdev=635.50 clat (msec): min=27, max=201, avg=109.97, stdev=23.10 lat (msec): min=27, max=204, avg=110.22, stdev=23.12 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 80], 10.00th=[ 85], 20.00th=[ 91], | 30.00th=[ 96], 40.00th=[ 102], 50.00th=[ 108], 60.00th=[ 113], | 70.00th=[ 120], 80.00th=[ 129], 90.00th=[ 142], 95.00th=[ 155], | 99.00th=[ 176], 99.50th=[ 186], 99.90th=[ 201], 99.95th=[ 203], | 99.99th=[ 203] bw ( KiB/s): min= 184, max= 374, per=25.08%, avg=290.71, stdev=47.75, samples=35 iops : min= 46, max= 93, avg=72.43, stdev=11.93, samples=35 lat (msec) : 50=0.08%, 100=40.27%, 250=59.65% cpu : usr=0.38%, sys=2.73%, ctx=2402, majf=0, minf=15 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=148073: Tue Apr 14 12:26:02 2026 read: IOPS=70, BW=281KiB/s (287kB/s)(5060KiB/18023msec) slat (usec): min=1876, max=35847, avg=7812.29, stdev=4120.45 clat (msec): min=52, max=189, avg=105.01, stdev=22.68 lat (msec): min=62, max=196, avg=112.83, stdev=23.56 clat percentiles (msec): | 1.00th=[ 63], 5.00th=[ 72], 10.00th=[ 80], 20.00th=[ 87], | 30.00th=[ 93], 40.00th=[ 97], 50.00th=[ 103], 60.00th=[ 108], | 70.00th=[ 114], 80.00th=[ 123], 90.00th=[ 136], 95.00th=[ 148], | 99.00th=[ 167], 99.50th=[ 174], 99.90th=[ 186], 99.95th=[ 190], | 99.99th=[ 190] bw ( KiB/s): min= 152, max= 376, per=25.18%, avg=280.29, stdev=52.48, samples=35 iops : min= 38, max= 94, avg=69.83, stdev=13.07, samples=35 write: IOPS=71, BW=287KiB/s (294kB/s)(5180KiB/18023msec); 0 zone resets slat (usec): min=25, max=9849, avg=225.18, stdev=582.53 clat (msec): min=23, max=191, avg=111.46, stdev=23.19 lat (msec): min=23, max=191, avg=111.69, stdev=23.17 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 80], 10.00th=[ 86], 20.00th=[ 91], | 30.00th=[ 97], 40.00th=[ 103], 50.00th=[ 109], 60.00th=[ 114], | 70.00th=[ 122], 80.00th=[ 132], 90.00th=[ 144], 95.00th=[ 155], | 99.00th=[ 176], 99.50th=[ 180], 99.90th=[ 190], 99.95th=[ 192], | 99.99th=[ 192] bw ( KiB/s): min= 208, max= 359, per=24.66%, avg=285.83, stdev=42.45, samples=35 iops : min= 52, max= 89, avg=71.17, stdev=10.64, samples=35 lat (msec) : 50=0.04%, 100=40.90%, 250=59.06% cpu : usr=0.39%, sys=2.68%, ctx=2290, majf=0, minf=16 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=1113KiB/s (1140kB/s), 277KiB/s-282KiB/s (283kB/s-288kB/s), io=19.6MiB (20.5MB), run=17895-18023msec WRITE: bw=1159KiB/s (1187kB/s), 287KiB/s-294KiB/s (294kB/s-301kB/s), io=20.4MiB (21.4MB), run=17895-18023msec 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=148080: Tue Apr 14 12:26:10 2026 read: IOPS=2, BW=84.7MiB/s (88.9MB/s)(40.0MiB/472msec) slat (nsec): min=24678k, max=24678k, avg=24677585.00, stdev= 0.00 clat (nsec): min=415646k, max=415646k, avg=415646211.00, stdev= 0.00 lat (nsec): min=440328k, max=440328k, avg=440327944.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 418], 10.00th=[ 418], 20.00th=[ 418], | 30.00th=[ 418], 40.00th=[ 418], 50.00th=[ 418], 60.00th=[ 418], | 70.00th=[ 418], 80.00th=[ 418], 90.00th=[ 418], 95.00th=[ 418], | 99.00th=[ 418], 99.50th=[ 418], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 418] lat (msec) : 500=100.00% cpu : usr=0.21%, sys=3.18%, ctx=2, 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=84.7MiB/s (88.9MB/s), 84.7MiB/s-84.7MiB/s (88.9MB/s-88.9MB/s), io=40.0MiB (41.9MB), run=472-472msec debug=super ioctl neterror warning dlmtrace error emerg ha rpctrace vfstrace config console lfsck