== sanity test 398c: run fio to test AIO ================= 05:02:07 (1785402127) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.511705 s, 82.0 MB/s osc.lustre-OST0000-osc-ffffa09631b51800.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=178419: Thu Jul 30 05:02:53 2026 write: IOPS=72, BW=290KiB/s (297kB/s)(10.0MiB/35316msec); 0 zone resets slat (usec): min=50, max=18424, avg=260.76, stdev=960.39 clat (msec): min=22, max=452, avg=219.31, stdev=71.10 lat (msec): min=22, max=452, avg=219.57, stdev=71.16 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 116], 10.00th=[ 140], 20.00th=[ 165], | 30.00th=[ 182], 40.00th=[ 192], 50.00th=[ 207], 60.00th=[ 224], | 70.00th=[ 239], 80.00th=[ 275], 90.00th=[ 330], 95.00th=[ 363], | 99.00th=[ 405], 99.50th=[ 422], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 451] bw ( KiB/s): min= 134, max= 634, per=24.93%, avg=288.89, stdev=91.51, samples=70 iops : min= 33, max= 158, avg=71.84, stdev=22.90, samples=70 lat (msec) : 50=0.20%, 100=1.84%, 250=71.29%, 500=26.68% cpu : usr=0.11%, sys=0.78%, ctx=2499, 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=178420: Thu Jul 30 05:02:53 2026 write: IOPS=72, BW=291KiB/s (298kB/s)(10.0MiB/35183msec); 0 zone resets slat (usec): min=47, max=35843, avg=236.05, stdev=1347.62 clat (msec): min=23, max=453, avg=219.46, stdev=72.82 lat (msec): min=23, max=453, avg=219.70, stdev=72.87 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 115], 10.00th=[ 140], 20.00th=[ 159], | 30.00th=[ 178], 40.00th=[ 192], 50.00th=[ 203], 60.00th=[ 222], | 70.00th=[ 243], 80.00th=[ 279], 90.00th=[ 338], 95.00th=[ 359], | 99.00th=[ 405], 99.50th=[ 430], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 126, max= 642, per=24.96%, avg=289.30, stdev=94.46, samples=70 iops : min= 31, max= 160, avg=71.94, stdev=23.60, samples=70 lat (msec) : 50=0.08%, 100=2.30%, 250=69.38%, 500=28.24% cpu : usr=0.15%, sys=0.89%, ctx=1673, 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=178421: Thu Jul 30 05:02:53 2026 write: IOPS=72, BW=291KiB/s (298kB/s)(10.0MiB/35182msec); 0 zone resets slat (usec): min=49, max=24332, avg=270.44, stdev=1175.47 clat (msec): min=23, max=430, avg=219.09, stdev=71.76 lat (msec): min=23, max=431, avg=219.36, stdev=71.76 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 112], 10.00th=[ 142], 20.00th=[ 159], | 30.00th=[ 178], 40.00th=[ 192], 50.00th=[ 207], 60.00th=[ 226], | 70.00th=[ 247], 80.00th=[ 275], 90.00th=[ 326], 95.00th=[ 363], | 99.00th=[ 401], 99.50th=[ 405], 99.90th=[ 422], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 135, max= 587, per=24.96%, avg=289.31, stdev=87.71, samples=70 iops : min= 33, max= 146, avg=71.94, stdev=21.89, samples=70 lat (msec) : 50=0.23%, 100=1.56%, 250=71.17%, 500=27.03% cpu : usr=0.11%, sys=0.88%, ctx=2263, 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=178422: Thu Jul 30 05:02:53 2026 write: IOPS=72, BW=290KiB/s (297kB/s)(10.0MiB/35325msec); 0 zone resets slat (usec): min=48, max=20924, avg=177.97, stdev=806.57 clat (msec): min=86, max=435, avg=219.37, stdev=70.26 lat (msec): min=87, max=435, avg=219.55, stdev=70.30 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 117], 10.00th=[ 140], 20.00th=[ 163], | 30.00th=[ 184], 40.00th=[ 194], 50.00th=[ 209], 60.00th=[ 222], | 70.00th=[ 241], 80.00th=[ 275], 90.00th=[ 321], 95.00th=[ 363], | 99.00th=[ 405], 99.50th=[ 422], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 125, max= 634, per=24.86%, avg=288.10, stdev=93.50, samples=70 iops : min= 31, max= 158, avg=71.64, stdev=23.36, samples=70 lat (msec) : 100=1.25%, 250=71.72%, 500=27.03% cpu : usr=0.10%, sys=0.67%, ctx=1561, 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=1160KiB/s (1187kB/s), 290KiB/s-291KiB/s (297kB/s-298kB/s), io=40.0MiB (41.9MB), run=35182-35325msec 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=178438: Thu Jul 30 05:03:57 2026 read: IOPS=24, BW=99.3KiB/s (102kB/s)(5048KiB/50832msec) slat (usec): min=62, max=117430, avg=21918.59, stdev=15150.20 clat (msec): min=14, max=612, avg=300.87, stdev=97.02 lat (msec): min=23, max=645, avg=322.79, stdev=102.33 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 153], 10.00th=[ 178], 20.00th=[ 220], | 30.00th=[ 251], 40.00th=[ 275], 50.00th=[ 300], 60.00th=[ 326], | 70.00th=[ 351], 80.00th=[ 376], 90.00th=[ 422], 95.00th=[ 464], | 99.00th=[ 558], 99.50th=[ 567], 99.90th=[ 592], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 31, max= 206, per=25.01%, avg=98.54, stdev=35.31, samples=100 iops : min= 7, max= 51, avg=24.11, stdev= 8.90, samples=100 write: IOPS=25, BW=102KiB/s (105kB/s)(5192KiB/50832msec); 0 zone resets slat (usec): min=51, max=28341, avg=316.14, stdev=1510.94 clat (msec): min=73, max=750, avg=312.05, stdev=95.38 lat (msec): min=74, max=750, avg=312.37, stdev=95.39 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 163], 10.00th=[ 186], 20.00th=[ 230], | 30.00th=[ 262], 40.00th=[ 292], 50.00th=[ 313], 60.00th=[ 334], | 70.00th=[ 363], 80.00th=[ 388], 90.00th=[ 430], 95.00th=[ 472], | 99.00th=[ 550], 99.50th=[ 600], 99.90th=[ 735], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 39, max= 199, per=24.74%, avg=101.45, stdev=36.14, samples=100 iops : min= 9, max= 49, avg=24.83, stdev= 9.10, samples=100 lat (msec) : 20=0.04%, 50=0.20%, 100=1.09%, 250=27.07%, 500=68.79% lat (msec) : 750=2.77%, 1000=0.04% cpu : usr=0.17%, sys=1.32%, ctx=4300, 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=178439: Thu Jul 30 05:03:57 2026 read: IOPS=24, BW=98.0KiB/s (100kB/s)(4976KiB/50750msec) slat (msec): min=2, max=128, avg=22.78, stdev=15.36 clat (msec): min=73, max=642, avg=305.91, stdev=97.02 lat (msec): min=79, max=694, avg=328.70, stdev=102.67 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 153], 10.00th=[ 178], 20.00th=[ 220], | 30.00th=[ 253], 40.00th=[ 279], 50.00th=[ 305], 60.00th=[ 330], | 70.00th=[ 359], 80.00th=[ 384], 90.00th=[ 430], 95.00th=[ 464], | 99.00th=[ 567], 99.50th=[ 609], 99.90th=[ 634], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 38, max= 208, per=24.66%, avg=97.15, stdev=32.47, samples=100 iops : min= 9, max= 52, avg=23.75, stdev= 8.15, samples=100 write: IOPS=25, BW=104KiB/s (106kB/s)(5264KiB/50750msec); 0 zone resets slat (usec): min=39, max=25310, avg=247.92, stdev=1258.65 clat (msec): min=77, max=669, avg=304.92, stdev=91.55 lat (msec): min=77, max=669, avg=305.17, stdev=91.55 clat percentiles (msec): | 1.00th=[ 131], 5.00th=[ 161], 10.00th=[ 184], 20.00th=[ 224], | 30.00th=[ 257], 40.00th=[ 284], 50.00th=[ 305], 60.00th=[ 326], | 70.00th=[ 347], 80.00th=[ 376], 90.00th=[ 418], 95.00th=[ 456], | 99.00th=[ 567], 99.50th=[ 609], 99.90th=[ 667], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 31, max= 239, per=25.18%, avg=103.25, stdev=40.49, samples=100 iops : min= 7, max= 59, avg=25.28, stdev=10.21, samples=100 lat (msec) : 100=0.70%, 250=27.97%, 500=68.75%, 750=2.58% cpu : usr=0.15%, sys=1.12%, ctx=3958, 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=178440: Thu Jul 30 05:03:57 2026 read: IOPS=24, BW=97.0KiB/s (100kB/s)(4984KiB/50863msec) slat (msec): min=2, max=123, avg=22.42, stdev=16.09 clat (msec): min=59, max=807, avg=304.86, stdev=98.36 lat (msec): min=97, max=829, avg=327.29, stdev=103.65 clat percentiles (msec): | 1.00th=[ 131], 5.00th=[ 157], 10.00th=[ 180], 20.00th=[ 220], | 30.00th=[ 245], 40.00th=[ 275], 50.00th=[ 305], 60.00th=[ 330], | 70.00th=[ 351], 80.00th=[ 380], 90.00th=[ 422], 95.00th=[ 456], | 99.00th=[ 609], 99.50th=[ 651], 99.90th=[ 793], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 38, max= 199, per=24.71%, avg=97.37, stdev=34.68, samples=100 iops : min= 9, max= 49, avg=23.80, stdev= 8.74, samples=100 write: IOPS=25, BW=103KiB/s (106kB/s)(5256KiB/50863msec); 0 zone resets slat (usec): min=50, max=25950, avg=275.69, stdev=1155.16 clat (msec): min=57, max=762, avg=306.51, stdev=92.18 lat (msec): min=57, max=762, avg=306.79, stdev=92.22 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 163], 10.00th=[ 184], 20.00th=[ 228], | 30.00th=[ 257], 40.00th=[ 284], 50.00th=[ 305], 60.00th=[ 326], | 70.00th=[ 355], 80.00th=[ 380], 90.00th=[ 422], 95.00th=[ 451], | 99.00th=[ 523], 99.50th=[ 625], 99.90th=[ 751], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 23, max= 238, per=24.92%, avg=102.17, stdev=39.76, samples=100 iops : min= 5, max= 59, avg=25.03, stdev= 9.99, samples=100 lat (msec) : 100=0.70%, 250=28.01%, 500=69.18%, 750=1.91%, 1000=0.20% cpu : usr=0.15%, sys=1.19%, ctx=4050, 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=178441: Thu Jul 30 05:03:57 2026 read: IOPS=24, BW=99.4KiB/s (102kB/s)(5060KiB/50929msec) slat (msec): min=2, max=129, avg=22.26, stdev=14.84 clat (msec): min=41, max=648, avg=302.63, stdev=96.24 lat (msec): min=62, max=693, avg=324.90, stdev=101.17 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 155], 10.00th=[ 176], 20.00th=[ 215], | 30.00th=[ 253], 40.00th=[ 279], 50.00th=[ 300], 60.00th=[ 326], | 70.00th=[ 351], 80.00th=[ 380], 90.00th=[ 422], 95.00th=[ 464], | 99.00th=[ 575], 99.50th=[ 617], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 39, max= 223, per=24.98%, avg=98.43, stdev=34.57, samples=101 iops : min= 9, max= 55, avg=24.07, stdev= 8.65, samples=101 write: IOPS=25, BW=102KiB/s (104kB/s)(5180KiB/50929msec); 0 zone resets slat (usec): min=52, max=27669, avg=313.91, stdev=1379.01 clat (msec): min=62, max=693, avg=310.03, stdev=95.62 lat (msec): min=62, max=693, avg=310.34, stdev=95.62 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 167], 10.00th=[ 186], 20.00th=[ 228], | 30.00th=[ 262], 40.00th=[ 284], 50.00th=[ 309], 60.00th=[ 330], | 70.00th=[ 355], 80.00th=[ 384], 90.00th=[ 430], 95.00th=[ 472], | 99.00th=[ 592], 99.50th=[ 634], 99.90th=[ 684], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 15, max= 196, per=24.58%, avg=100.79, stdev=36.19, samples=101 iops : min= 3, max= 49, avg=24.67, stdev= 9.13, samples=101 lat (msec) : 50=0.04%, 100=0.74%, 250=26.88%, 500=69.41%, 750=2.93% cpu : usr=0.16%, sys=1.14%, ctx=4146, 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=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=394KiB/s (403kB/s), 97.0KiB/s-99.4KiB/s (100kB/s-102kB/s), io=19.6MiB (20.5MB), run=50750-50929msec WRITE: bw=410KiB/s (420kB/s), 102KiB/s-104KiB/s (104kB/s-106kB/s), io=20.4MiB (21.4MB), run=50750-50929msec 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=178453: Thu Jul 30 05:04:12 2026 read: IOPS=1, BW=57.3MiB/s (60.1MB/s)(40.0MiB/698msec) slat (nsec): min=57531k, max=57531k, avg=57530604.00, stdev= 0.00 clat (nsec): min=608519k, max=608519k, avg=608518567.00, stdev= 0.00 lat (nsec): min=666053k, max=666053k, avg=666053111.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 609], 5.00th=[ 609], 10.00th=[ 609], 20.00th=[ 609], | 30.00th=[ 609], 40.00th=[ 609], 50.00th=[ 609], 60.00th=[ 609], | 70.00th=[ 609], 80.00th=[ 609], 90.00th=[ 609], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.15%, ctx=8, 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=57.3MiB/s (60.1MB/s), 57.3MiB/s-57.3MiB/s (60.1MB/s-60.1MB/s), io=40.0MiB (41.9MB), run=698-698msec 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