== sanity test 398c: run fio to test AIO ================= 21:27:21 (1783646841) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.336901 s, 124 MB/s osc.lustre-OST0000-osc-ffff9c079ed20000.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=155674: Thu Jul 9 21:29:09 2026 write: IOPS=25, BW=101KiB/s (103kB/s)(10.0MiB/101423msec); 0 zone resets slat (usec): min=36, max=13346, avg=314.12, stdev=769.65 clat (msec): min=232, max=1389, avg=632.97, stdev=162.01 lat (msec): min=240, max=1389, avg=633.29, stdev=162.03 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 338], 10.00th=[ 439], 20.00th=[ 506], | 30.00th=[ 550], 40.00th=[ 592], 50.00th=[ 634], 60.00th=[ 667], | 70.00th=[ 709], 80.00th=[ 760], 90.00th=[ 835], 95.00th=[ 894], | 99.00th=[ 1053], 99.50th=[ 1133], 99.90th=[ 1301], 99.95th=[ 1334], | 99.99th=[ 1385] bw ( KiB/s): min= 24, max= 255, per=25.00%, avg=100.73, stdev=33.65, samples=200 iops : min= 6, max= 63, avg=24.82, stdev= 8.45, samples=200 lat (msec) : 250=0.04%, 500=18.71%, 750=59.30%, 1000=20.35%, 2000=1.60% cpu : usr=0.06%, sys=0.44%, ctx=3033, 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=155675: Thu Jul 9 21:29:09 2026 write: IOPS=25, BW=101KiB/s (104kB/s)(10.0MiB/100966msec); 0 zone resets slat (usec): min=38, max=9028, avg=252.36, stdev=506.40 clat (msec): min=96, max=1367, avg=630.49, stdev=167.98 lat (msec): min=96, max=1368, avg=630.74, stdev=167.99 clat percentiles (msec): | 1.00th=[ 264], 5.00th=[ 351], 10.00th=[ 422], 20.00th=[ 506], | 30.00th=[ 550], 40.00th=[ 592], 50.00th=[ 634], 60.00th=[ 667], | 70.00th=[ 709], 80.00th=[ 760], 90.00th=[ 835], 95.00th=[ 894], | 99.00th=[ 1053], 99.50th=[ 1167], 99.90th=[ 1334], 99.95th=[ 1334], | 99.99th=[ 1368] bw ( KiB/s): min= 8, max= 255, per=25.07%, avg=101.02, stdev=35.43, samples=200 iops : min= 2, max= 63, avg=24.89, stdev= 8.89, samples=200 lat (msec) : 100=0.62%, 250=0.04%, 500=17.85%, 750=59.57%, 1000=19.96% lat (msec) : 2000=1.95% cpu : usr=0.06%, sys=0.38%, ctx=2345, 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=155676: Thu Jul 9 21:29:09 2026 write: IOPS=25, BW=101KiB/s (103kB/s)(10.0MiB/101327msec); 0 zone resets slat (usec): min=36, max=17858, avg=258.54, stdev=670.93 clat (msec): min=93, max=1392, avg=632.49, stdev=165.19 lat (msec): min=94, max=1392, avg=632.75, stdev=165.23 clat percentiles (msec): | 1.00th=[ 284], 5.00th=[ 342], 10.00th=[ 435], 20.00th=[ 502], | 30.00th=[ 550], 40.00th=[ 592], 50.00th=[ 634], 60.00th=[ 667], | 70.00th=[ 718], 80.00th=[ 760], 90.00th=[ 827], 95.00th=[ 894], | 99.00th=[ 1070], 99.50th=[ 1183], 99.90th=[ 1368], 99.95th=[ 1368], | 99.99th=[ 1385] bw ( KiB/s): min= 24, max= 256, per=25.04%, avg=100.92, stdev=36.19, samples=200 iops : min= 6, max= 64, avg=24.86, stdev= 9.09, samples=200 lat (msec) : 100=0.62%, 250=0.04%, 500=19.22%, 750=57.38%, 1000=21.05% lat (msec) : 2000=1.68% cpu : usr=0.07%, sys=0.43%, ctx=2792, 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=155677: Thu Jul 9 21:29:09 2026 write: IOPS=25, BW=101KiB/s (104kB/s)(10.0MiB/101214msec); 0 zone resets slat (usec): min=38, max=12180, avg=290.50, stdev=630.24 clat (msec): min=154, max=1331, avg=631.66, stdev=162.91 lat (msec): min=154, max=1331, avg=631.95, stdev=162.92 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 342], 10.00th=[ 426], 20.00th=[ 506], | 30.00th=[ 550], 40.00th=[ 592], 50.00th=[ 634], 60.00th=[ 676], | 70.00th=[ 709], 80.00th=[ 760], 90.00th=[ 827], 95.00th=[ 894], | 99.00th=[ 1062], 99.50th=[ 1133], 99.90th=[ 1318], 99.95th=[ 1334], | 99.99th=[ 1334] bw ( KiB/s): min= 23, max= 247, per=24.94%, avg=100.52, stdev=31.93, samples=201 iops : min= 5, max= 61, avg=24.76, stdev= 8.01, samples=201 lat (msec) : 250=0.74%, 500=18.01%, 750=59.06%, 1000=20.55%, 2000=1.64% cpu : usr=0.06%, sys=0.42%, ctx=3171, 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 Run status group 0 (all jobs): WRITE: bw=404KiB/s (414kB/s), 101KiB/s-101KiB/s (103kB/s-104kB/s), io=40.0MiB (41.9MB), run=100966-101423msec 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=155701: Thu Jul 9 21:30:15 2026 read: IOPS=20, BW=82.4KiB/s (84.4kB/s)(5048KiB/61239msec) slat (usec): min=2226, max=37139, avg=8998.29, stdev=4724.36 clat (msec): min=12, max=449, avg=240.19, stdev=59.50 lat (msec): min=17, max=462, avg=249.20, stdev=60.52 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 153], 10.00th=[ 174], 20.00th=[ 192], | 30.00th=[ 207], 40.00th=[ 222], 50.00th=[ 234], 60.00th=[ 251], | 70.00th=[ 271], 80.00th=[ 292], 90.00th=[ 317], 95.00th=[ 342], | 99.00th=[ 388], 99.50th=[ 409], 99.90th=[ 439], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 23, max= 152, per=25.07%, avg=81.99, stdev=28.46, samples=121 iops : min= 5, max= 38, avg=20.11, stdev= 7.18, samples=121 write: IOPS=21, BW=84.8KiB/s (86.8kB/s)(5192KiB/61239msec); 0 zone resets slat (usec): min=38, max=16456, avg=291.91, stdev=670.39 clat (msec): min=167, max=884, avg=510.69, stdev=120.35 lat (msec): min=167, max=884, avg=510.98, stdev=120.35 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 330], 10.00th=[ 355], 20.00th=[ 405], | 30.00th=[ 443], 40.00th=[ 472], 50.00th=[ 502], 60.00th=[ 542], | 70.00th=[ 575], 80.00th=[ 617], 90.00th=[ 667], 95.00th=[ 718], | 99.00th=[ 818], 99.50th=[ 860], 99.90th=[ 877], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 16, max= 135, per=24.68%, avg=84.15, stdev=22.36, samples=121 iops : min= 4, max= 33, avg=20.66, stdev= 5.63, samples=121 lat (msec) : 20=0.12%, 50=0.20%, 100=0.20%, 250=29.18%, 500=44.84% lat (msec) : 750=24.14%, 1000=1.33% cpu : usr=0.12%, sys=1.07%, ctx=5226, 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=155702: Thu Jul 9 21:30:15 2026 read: IOPS=20, BW=81.3KiB/s (83.2kB/s)(4976KiB/61240msec) slat (usec): min=1744, max=37167, avg=8806.67, stdev=4758.10 clat (msec): min=11, max=464, avg=242.76, stdev=61.01 lat (msec): min=17, max=480, avg=251.57, stdev=61.96 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 161], 10.00th=[ 176], 20.00th=[ 197], | 30.00th=[ 209], 40.00th=[ 224], 50.00th=[ 236], 60.00th=[ 251], | 70.00th=[ 268], 80.00th=[ 292], 90.00th=[ 321], 95.00th=[ 351], | 99.00th=[ 401], 99.50th=[ 418], 99.90th=[ 460], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 16, max= 159, per=24.64%, avg=80.58, stdev=30.40, samples=121 iops : min= 4, max= 39, avg=19.76, stdev= 7.66, samples=121 write: IOPS=21, BW=85.0KiB/s (88.0kB/s)(5264KiB/61240msec); 0 zone resets slat (usec): min=45, max=14458, avg=269.48, stdev=576.47 clat (msec): min=167, max=868, avg=504.99, stdev=118.80 lat (msec): min=167, max=868, avg=505.26, stdev=118.77 clat percentiles (msec): | 1.00th=[ 264], 5.00th=[ 321], 10.00th=[ 359], 20.00th=[ 405], | 30.00th=[ 435], 40.00th=[ 464], 50.00th=[ 493], 60.00th=[ 535], | 70.00th=[ 567], 80.00th=[ 617], 90.00th=[ 667], 95.00th=[ 709], | 99.00th=[ 793], 99.50th=[ 827], 99.90th=[ 860], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 39, max= 159, per=25.05%, avg=85.40, stdev=23.74, samples=121 iops : min= 9, max= 39, avg=20.97, stdev= 5.96, samples=121 lat (msec) : 20=0.04%, 50=0.27%, 100=0.20%, 250=28.44%, 500=46.56% lat (msec) : 750=23.40%, 1000=1.09% cpu : usr=0.10%, sys=1.04%, ctx=5087, 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=155703: Thu Jul 9 21:30:15 2026 read: IOPS=20, BW=81.5KiB/s (83.5kB/s)(4984KiB/61147msec) slat (usec): min=51, max=39361, avg=8813.23, stdev=4673.97 clat (msec): min=5, max=510, avg=244.51, stdev=60.06 lat (msec): min=11, max=519, avg=253.33, stdev=60.91 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 157], 10.00th=[ 174], 20.00th=[ 194], | 30.00th=[ 213], 40.00th=[ 226], 50.00th=[ 241], 60.00th=[ 257], | 70.00th=[ 275], 80.00th=[ 292], 90.00th=[ 321], 95.00th=[ 342], | 99.00th=[ 401], 99.50th=[ 426], 99.90th=[ 464], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 23, max= 152, per=24.91%, avg=81.46, stdev=29.10, samples=121 iops : min= 5, max= 38, avg=19.98, stdev= 7.31, samples=121 write: IOPS=21, BW=85.0KiB/s (88.0kB/s)(5256KiB/61147msec); 0 zone resets slat (usec): min=39, max=6107, avg=271.95, stdev=456.48 clat (msec): min=114, max=868, avg=503.54, stdev=119.98 lat (msec): min=114, max=868, avg=503.82, stdev=119.98 clat percentiles (msec): | 1.00th=[ 234], 5.00th=[ 321], 10.00th=[ 368], 20.00th=[ 405], | 30.00th=[ 435], 40.00th=[ 464], 50.00th=[ 498], 60.00th=[ 531], | 70.00th=[ 567], 80.00th=[ 609], 90.00th=[ 667], 95.00th=[ 709], | 99.00th=[ 785], 99.50th=[ 827], 99.90th=[ 869], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 32, max= 152, per=24.98%, avg=85.18, stdev=23.24, samples=121 iops : min= 8, max= 38, avg=20.92, stdev= 5.86, samples=121 lat (msec) : 10=0.04%, 20=0.04%, 50=0.16%, 100=0.08%, 250=27.66% lat (msec) : 500=46.84%, 750=23.98%, 1000=1.21% cpu : usr=0.11%, sys=0.96%, ctx=5080, 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=155704: Thu Jul 9 21:30:15 2026 read: IOPS=20, BW=82.7KiB/s (84.7kB/s)(5060KiB/61200msec) slat (usec): min=1925, max=47687, avg=8811.38, stdev=4797.83 clat (msec): min=15, max=507, avg=246.47, stdev=61.19 lat (msec): min=18, max=517, avg=255.28, stdev=61.94 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 161], 10.00th=[ 174], 20.00th=[ 199], | 30.00th=[ 213], 40.00th=[ 228], 50.00th=[ 241], 60.00th=[ 255], | 70.00th=[ 275], 80.00th=[ 296], 90.00th=[ 330], 95.00th=[ 355], | 99.00th=[ 401], 99.50th=[ 409], 99.90th=[ 472], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 24, max= 159, per=25.25%, avg=82.57, stdev=27.47, samples=121 iops : min= 6, max= 39, avg=20.26, stdev= 6.88, samples=121 write: IOPS=21, BW=84.6KiB/s (86.7kB/s)(5180KiB/61200msec); 0 zone resets slat (usec): min=40, max=9736, avg=301.13, stdev=610.89 clat (msec): min=92, max=880, avg=504.83, stdev=121.06 lat (msec): min=92, max=880, avg=505.14, stdev=121.08 clat percentiles (msec): | 1.00th=[ 266], 5.00th=[ 334], 10.00th=[ 363], 20.00th=[ 397], | 30.00th=[ 430], 40.00th=[ 464], 50.00th=[ 493], 60.00th=[ 527], | 70.00th=[ 567], 80.00th=[ 609], 90.00th=[ 659], 95.00th=[ 718], | 99.00th=[ 835], 99.50th=[ 852], 99.90th=[ 877], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 15, max= 167, per=24.62%, avg=83.94, stdev=23.13, samples=121 iops : min= 3, max= 41, avg=20.60, stdev= 5.83, samples=121 lat (msec) : 20=0.08%, 50=0.35%, 100=0.12%, 250=27.50%, 500=47.81% lat (msec) : 750=22.50%, 1000=1.64% cpu : usr=0.13%, sys=0.98%, ctx=5216, 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=328KiB/s (336kB/s), 81.3KiB/s-82.7KiB/s (83.2kB/s-84.7kB/s), io=19.6MiB (20.5MB), run=61147-61240msec WRITE: bw=341KiB/s (349kB/s), 84.6KiB/s-85.0KiB/s (86.7kB/s-88.0kB/s), io=20.4MiB (21.4MB), run=61147-61240msec 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=155717: Thu Jul 9 21:30:20 2026 read: IOPS=2, BW=117MiB/s (123MB/s)(40.0MiB/341msec) slat (nsec): min=19055k, max=19055k, avg=19055106.00, stdev= 0.00 clat (nsec): min=312776k, max=312776k, avg=312776101.00, stdev= 0.00 lat (nsec): min=331835k, max=331835k, avg=331835101.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 313], 5.00th=[ 313], 10.00th=[ 313], 20.00th=[ 313], | 30.00th=[ 313], 40.00th=[ 313], 50.00th=[ 313], 60.00th=[ 313], | 70.00th=[ 313], 80.00th=[ 313], 90.00th=[ 313], 95.00th=[ 313], | 99.00th=[ 313], 99.50th=[ 313], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.94%, ctx=43, majf=0, minf=8 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=117MiB/s (123MB/s), 117MiB/s-117MiB/s (123MB/s-123MB/s), io=40.0MiB (41.9MB), run=341-341msec 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