== sanity test 398c: run fio to test AIO ================= 11:36:29 (1788363389) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.1844 s, 227 MB/s osc.lustre-OST0000-osc-ffff8b35d0646800.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=148193: Wed Sep 2 11:37:39 2026 write: IOPS=39, BW=157KiB/s (161kB/s)(10.0MiB/65184msec); 0 zone resets slat (usec): min=34, max=6807, avg=242.90, stdev=336.70 clat (msec): min=121, max=732, avg=406.60, stdev=96.27 lat (msec): min=121, max=732, avg=406.84, stdev=96.29 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 241], 10.00th=[ 284], 20.00th=[ 326], | 30.00th=[ 363], 40.00th=[ 388], 50.00th=[ 414], 60.00th=[ 435], | 70.00th=[ 460], 80.00th=[ 489], 90.00th=[ 523], 95.00th=[ 558], | 99.00th=[ 625], 99.50th=[ 634], 99.90th=[ 667], 99.95th=[ 701], | 99.99th=[ 735] bw ( KiB/s): min= 87, max= 310, per=24.95%, avg=156.67, stdev=35.90, samples=129 iops : min= 21, max= 77, avg=38.88, stdev= 9.04, samples=129 lat (msec) : 250=5.74%, 500=77.66%, 750=16.60% cpu : usr=0.06%, sys=0.60%, ctx=3169, majf=0, minf=8 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=148194: Wed Sep 2 11:37:39 2026 write: IOPS=39, BW=157KiB/s (161kB/s)(10.0MiB/65209msec); 0 zone resets slat (usec): min=36, max=4059, avg=233.61, stdev=279.11 clat (msec): min=37, max=839, avg=406.81, stdev=97.01 lat (msec): min=37, max=839, avg=407.05, stdev=97.01 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 247], 10.00th=[ 288], 20.00th=[ 326], | 30.00th=[ 359], 40.00th=[ 388], 50.00th=[ 414], 60.00th=[ 435], | 70.00th=[ 460], 80.00th=[ 485], 90.00th=[ 527], 95.00th=[ 558], | 99.00th=[ 617], 99.50th=[ 651], 99.90th=[ 844], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 87, max= 323, per=24.92%, avg=156.52, stdev=36.24, samples=129 iops : min= 21, max= 80, avg=38.84, stdev= 9.10, samples=129 lat (msec) : 50=0.08%, 250=5.23%, 500=79.69%, 750=14.84%, 1000=0.16% cpu : usr=0.08%, sys=0.59%, ctx=3069, 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=148195: Wed Sep 2 11:37:39 2026 write: IOPS=39, BW=157KiB/s (161kB/s)(10.0MiB/65185msec); 0 zone resets slat (usec): min=39, max=6051, avg=224.67, stdev=285.44 clat (msec): min=139, max=786, avg=406.57, stdev=95.31 lat (msec): min=139, max=786, avg=406.80, stdev=95.31 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 247], 10.00th=[ 288], 20.00th=[ 330], | 30.00th=[ 359], 40.00th=[ 388], 50.00th=[ 414], 60.00th=[ 435], | 70.00th=[ 460], 80.00th=[ 489], 90.00th=[ 523], 95.00th=[ 558], | 99.00th=[ 609], 99.50th=[ 634], 99.90th=[ 735], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 87, max= 310, per=24.94%, avg=156.60, stdev=37.30, samples=129 iops : min= 21, max= 77, avg=38.87, stdev= 9.36, samples=129 lat (msec) : 250=5.51%, 500=78.44%, 750=15.98%, 1000=0.08% cpu : usr=0.06%, sys=0.58%, ctx=3012, majf=0, minf=8 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=148196: Wed Sep 2 11:37:39 2026 write: IOPS=39, BW=157KiB/s (161kB/s)(10.0MiB/65185msec); 0 zone resets slat (usec): min=51, max=6745, avg=245.40, stdev=327.17 clat (msec): min=93, max=696, avg=406.93, stdev=95.72 lat (msec): min=93, max=696, avg=407.18, stdev=95.72 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 239], 10.00th=[ 288], 20.00th=[ 330], | 30.00th=[ 359], 40.00th=[ 388], 50.00th=[ 414], 60.00th=[ 435], | 70.00th=[ 460], 80.00th=[ 485], 90.00th=[ 523], 95.00th=[ 558], | 99.00th=[ 625], 99.50th=[ 659], 99.90th=[ 667], 99.95th=[ 684], | 99.99th=[ 701] bw ( KiB/s): min= 79, max= 375, per=24.94%, avg=156.60, stdev=42.96, samples=129 iops : min= 19, max= 93, avg=38.87, stdev=10.78, samples=129 lat (msec) : 100=0.04%, 250=5.62%, 500=78.44%, 750=15.90% cpu : usr=0.08%, sys=0.58%, ctx=3274, 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 Run status group 0 (all jobs): WRITE: bw=628KiB/s (643kB/s), 157KiB/s-157KiB/s (161kB/s-161kB/s), io=40.0MiB (41.9MB), run=65184-65209msec 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=148218: Wed Sep 2 11:38:34 2026 read: IOPS=24, BW=98.1KiB/s (100kB/s)(5048KiB/51441msec) slat (usec): min=2097, max=28155, avg=6297.82, stdev=2656.44 clat (msec): min=7, max=475, avg=202.89, stdev=44.11 lat (msec): min=14, max=483, avg=209.19, stdev=44.45 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 142], 10.00th=[ 155], 20.00th=[ 169], | 30.00th=[ 182], 40.00th=[ 192], 50.00th=[ 203], 60.00th=[ 209], | 70.00th=[ 222], 80.00th=[ 239], 90.00th=[ 255], 95.00th=[ 275], | 99.00th=[ 305], 99.50th=[ 351], 99.90th=[ 435], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 23, max= 208, per=25.09%, avg=97.59, stdev=34.54, samples=102 iops : min= 5, max= 52, avg=24.07, stdev= 8.70, samples=102 write: IOPS=25, BW=101KiB/s (103kB/s)(5192KiB/51441msec); 0 zone resets slat (usec): min=40, max=5986, avg=284.74, stdev=444.48 clat (msec): min=108, max=785, avg=429.30, stdev=101.08 lat (msec): min=108, max=785, avg=429.59, stdev=101.09 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 264], 10.00th=[ 292], 20.00th=[ 338], | 30.00th=[ 376], 40.00th=[ 409], 50.00th=[ 435], 60.00th=[ 460], | 70.00th=[ 485], 80.00th=[ 514], 90.00th=[ 558], 95.00th=[ 584], | 99.00th=[ 659], 99.50th=[ 684], 99.90th=[ 735], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 39, max= 166, per=24.85%, avg=100.64, stdev=26.27, samples=102 iops : min= 9, max= 41, avg=24.83, stdev= 6.63, samples=102 lat (msec) : 10=0.04%, 20=0.08%, 50=0.27%, 100=0.20%, 250=44.84% lat (msec) : 500=42.19%, 750=12.34%, 1000=0.04% cpu : usr=0.12%, sys=1.07%, ctx=5162, 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=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=148219: Wed Sep 2 11:38:34 2026 read: IOPS=24, BW=96.9KiB/s (99.2kB/s)(4976KiB/51355msec) slat (usec): min=1793, max=18865, avg=6294.15, stdev=2570.29 clat (msec): min=30, max=388, avg=203.94, stdev=41.33 lat (msec): min=37, max=395, avg=210.24, stdev=41.69 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 146], 10.00th=[ 157], 20.00th=[ 169], | 30.00th=[ 182], 40.00th=[ 192], 50.00th=[ 203], 60.00th=[ 211], | 70.00th=[ 224], 80.00th=[ 239], 90.00th=[ 257], 95.00th=[ 275], | 99.00th=[ 300], 99.50th=[ 317], 99.90th=[ 359], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 31, max= 200, per=24.72%, avg=96.15, stdev=32.42, samples=102 iops : min= 7, max= 50, avg=23.71, stdev= 8.15, samples=102 write: IOPS=25, BW=103KiB/s (105kB/s)(5264KiB/51355msec); 0 zone resets slat (usec): min=46, max=6050, avg=285.23, stdev=427.74 clat (msec): min=112, max=786, avg=424.44, stdev=103.79 lat (msec): min=112, max=786, avg=424.73, stdev=103.83 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 253], 10.00th=[ 288], 20.00th=[ 334], | 30.00th=[ 372], 40.00th=[ 405], 50.00th=[ 430], 60.00th=[ 456], | 70.00th=[ 481], 80.00th=[ 510], 90.00th=[ 558], 95.00th=[ 592], | 99.00th=[ 659], 99.50th=[ 693], 99.90th=[ 776], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 39, max= 192, per=25.17%, avg=101.95, stdev=25.00, samples=102 iops : min= 9, max= 48, avg=25.17, stdev= 6.34, samples=102 lat (msec) : 50=0.23%, 100=0.16%, 250=43.91%, 500=43.95%, 750=11.68% lat (msec) : 1000=0.08% cpu : usr=0.11%, sys=1.10%, ctx=5336, 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=148220: Wed Sep 2 11:38:34 2026 read: IOPS=24, BW=96.8KiB/s (99.2kB/s)(4984KiB/51471msec) slat (usec): min=1894, max=18422, avg=6429.88, stdev=2674.65 clat (msec): min=8, max=364, avg=204.67, stdev=42.03 lat (msec): min=18, max=371, avg=211.10, stdev=42.54 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 144], 10.00th=[ 157], 20.00th=[ 171], | 30.00th=[ 184], 40.00th=[ 194], 50.00th=[ 203], 60.00th=[ 211], | 70.00th=[ 226], 80.00th=[ 241], 90.00th=[ 262], 95.00th=[ 275], | 99.00th=[ 300], 99.50th=[ 309], 99.90th=[ 338], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 24, max= 208, per=24.70%, avg=96.10, stdev=35.29, samples=102 iops : min= 6, max= 52, avg=23.70, stdev= 8.90, samples=102 write: IOPS=25, BW=102KiB/s (105kB/s)(5256KiB/51471msec); 0 zone resets slat (usec): min=55, max=3633, avg=274.46, stdev=318.60 clat (msec): min=96, max=785, avg=425.24, stdev=104.86 lat (msec): min=96, max=785, avg=425.52, stdev=104.87 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 239], 10.00th=[ 292], 20.00th=[ 338], | 30.00th=[ 372], 40.00th=[ 405], 50.00th=[ 435], 60.00th=[ 456], | 70.00th=[ 481], 80.00th=[ 514], 90.00th=[ 558], 95.00th=[ 584], | 99.00th=[ 659], 99.50th=[ 693], 99.90th=[ 785], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 32, max= 168, per=24.90%, avg=100.83, stdev=26.41, samples=102 iops : min= 8, max= 42, avg=24.88, stdev= 6.69, samples=102 lat (msec) : 10=0.04%, 50=0.31%, 100=0.16%, 250=44.06%, 500=43.44% lat (msec) : 750=11.84%, 1000=0.16% cpu : usr=0.14%, sys=1.05%, ctx=5129, 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=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=148221: Wed Sep 2 11:38:34 2026 read: IOPS=24, BW=98.8KiB/s (101kB/s)(5060KiB/51218msec) slat (usec): min=97, max=19666, avg=6327.46, stdev=2598.69 clat (msec): min=7, max=535, avg=202.11, stdev=45.66 lat (msec): min=11, max=543, avg=208.44, stdev=46.16 clat percentiles (msec): | 1.00th=[ 31], 5.00th=[ 144], 10.00th=[ 155], 20.00th=[ 169], | 30.00th=[ 184], 40.00th=[ 194], 50.00th=[ 203], 60.00th=[ 211], | 70.00th=[ 224], 80.00th=[ 236], 90.00th=[ 255], 95.00th=[ 271], | 99.00th=[ 300], 99.50th=[ 317], 99.90th=[ 523], 99.95th=[ 535], | 99.99th=[ 535] bw ( KiB/s): min= 16, max= 184, per=25.46%, avg=99.05, stdev=30.67, samples=101 iops : min= 4, max= 46, avg=24.44, stdev= 7.66, samples=101 write: IOPS=25, BW=101KiB/s (104kB/s)(5180KiB/51218msec); 0 zone resets slat (usec): min=59, max=4808, avg=256.62, stdev=301.36 clat (msec): min=59, max=969, avg=428.46, stdev=111.01 lat (msec): min=59, max=969, avg=428.72, stdev=111.01 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 249], 10.00th=[ 300], 20.00th=[ 338], | 30.00th=[ 376], 40.00th=[ 405], 50.00th=[ 430], 60.00th=[ 456], | 70.00th=[ 481], 80.00th=[ 518], 90.00th=[ 567], 95.00th=[ 592], | 99.00th=[ 743], 99.50th=[ 852], 99.90th=[ 911], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 55, max= 176, per=24.83%, avg=100.55, stdev=26.51, samples=101 iops : min= 13, max= 44, avg=24.81, stdev= 6.73, samples=101 lat (msec) : 10=0.08%, 20=0.20%, 50=0.43%, 100=0.31%, 250=44.96% lat (msec) : 500=41.84%, 750=11.76%, 1000=0.43% cpu : usr=0.12%, sys=1.03%, ctx=5431, 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=390KiB/s (399kB/s), 96.8KiB/s-98.8KiB/s (99.2kB/s-101kB/s), io=19.6MiB (20.5MB), run=51218-51471msec WRITE: bw=406KiB/s (416kB/s), 101KiB/s-103KiB/s (103kB/s-105kB/s), io=20.4MiB (21.4MB), run=51218-51471msec 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=148231: Wed Sep 2 11:38:39 2026 read: IOPS=5, BW=215MiB/s (226MB/s)(40.0MiB/186msec) slat (nsec): min=13827k, max=13827k, avg=13826672.00, stdev= 0.00 clat (nsec): min=164932k, max=164932k, avg=164931561.00, stdev= 0.00 lat (nsec): min=178763k, max=178763k, avg=178762700.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 165], 10.00th=[ 165], 20.00th=[ 165], | 30.00th=[ 165], 40.00th=[ 165], 50.00th=[ 165], 60.00th=[ 165], | 70.00th=[ 165], 80.00th=[ 165], 90.00th=[ 165], 95.00th=[ 165], | 99.00th=[ 165], 99.50th=[ 165], 99.90th=[ 165], 99.95th=[ 165], | 99.99th=[ 165] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=6.49%, ctx=5, 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=215MiB/s (226MB/s), 215MiB/s-215MiB/s (226MB/s-226MB/s), io=40.0MiB (41.9MB), run=186-186msec 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