== sanity test 398c: run fio to test AIO ================= 21:31:59 (1778290319) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.203832 s, 206 MB/s osc.lustre-OST0000-osc-ffff91101d2db800.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=150878: Fri May 8 21:32:53 2026 write: IOPS=51, BW=206KiB/s (211kB/s)(10.0MiB/49709msec); 0 zone resets slat (usec): min=35, max=3701, avg=223.24, stdev=199.85 clat (msec): min=113, max=728, avg=309.97, stdev=86.92 lat (msec): min=114, max=729, avg=310.20, stdev=86.93 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 192], 10.00th=[ 213], 20.00th=[ 236], | 30.00th=[ 259], 40.00th=[ 279], 50.00th=[ 296], 60.00th=[ 317], | 70.00th=[ 342], 80.00th=[ 380], 90.00th=[ 422], 95.00th=[ 472], | 99.00th=[ 575], 99.50th=[ 592], 99.90th=[ 667], 99.95th=[ 701], | 99.99th=[ 726] bw ( KiB/s): min= 40, max= 320, per=25.09%, avg=206.47, stdev=51.98, samples=98 iops : min= 10, max= 80, avg=51.46, stdev=13.08, samples=98 lat (msec) : 250=26.02%, 500=70.31%, 750=3.67% cpu : usr=0.11%, sys=0.84%, ctx=2634, 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=150879: Fri May 8 21:32:53 2026 write: IOPS=51, BW=206KiB/s (211kB/s)(10.0MiB/49709msec); 0 zone resets slat (usec): min=36, max=3483, avg=225.05, stdev=182.90 clat (msec): min=101, max=750, avg=310.21, stdev=87.77 lat (msec): min=101, max=750, avg=310.44, stdev=87.78 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 194], 10.00th=[ 213], 20.00th=[ 239], | 30.00th=[ 262], 40.00th=[ 275], 50.00th=[ 292], 60.00th=[ 317], | 70.00th=[ 342], 80.00th=[ 376], 90.00th=[ 422], 95.00th=[ 485], | 99.00th=[ 575], 99.50th=[ 609], 99.90th=[ 701], 99.95th=[ 726], | 99.99th=[ 751] bw ( KiB/s): min= 112, max= 312, per=25.11%, avg=206.63, stdev=51.09, samples=98 iops : min= 28, max= 78, avg=51.50, stdev=12.86, samples=98 lat (msec) : 250=24.14%, 500=72.46%, 750=3.36%, 1000=0.04% cpu : usr=0.10%, sys=0.82%, ctx=2843, 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=150880: Fri May 8 21:32:53 2026 write: IOPS=51, BW=206KiB/s (211kB/s)(10.0MiB/49758msec); 0 zone resets slat (usec): min=42, max=6932, avg=231.29, stdev=260.56 clat (msec): min=138, max=639, avg=310.32, stdev=83.49 lat (msec): min=138, max=639, avg=310.55, stdev=83.50 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 203], 10.00th=[ 215], 20.00th=[ 239], | 30.00th=[ 259], 40.00th=[ 275], 50.00th=[ 292], 60.00th=[ 317], | 70.00th=[ 342], 80.00th=[ 380], 90.00th=[ 418], 95.00th=[ 472], | 99.00th=[ 558], 99.50th=[ 592], 99.90th=[ 609], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 95, max= 312, per=24.90%, avg=204.94, stdev=48.92, samples=99 iops : min= 23, max= 78, avg=51.07, stdev=12.32, samples=99 lat (msec) : 250=24.49%, 500=72.42%, 750=3.09% cpu : usr=0.10%, sys=0.85%, ctx=2730, 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=150881: Fri May 8 21:32:53 2026 write: IOPS=51, BW=206KiB/s (211kB/s)(10.0MiB/49758msec); 0 zone resets slat (usec): min=50, max=3827, avg=222.51, stdev=184.70 clat (msec): min=43, max=634, avg=310.31, stdev=85.00 lat (msec): min=43, max=634, avg=310.53, stdev=84.99 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 197], 10.00th=[ 215], 20.00th=[ 239], | 30.00th=[ 259], 40.00th=[ 275], 50.00th=[ 296], 60.00th=[ 317], | 70.00th=[ 342], 80.00th=[ 380], 90.00th=[ 422], 95.00th=[ 472], | 99.00th=[ 558], 99.50th=[ 592], 99.90th=[ 634], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 87, max= 328, per=24.90%, avg=204.89, stdev=53.07, samples=99 iops : min= 21, max= 82, avg=51.06, stdev=13.34, samples=99 lat (msec) : 50=0.08%, 100=0.04%, 250=25.39%, 500=71.21%, 750=3.28% cpu : usr=0.10%, sys=0.86%, ctx=2758, 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=823KiB/s (843kB/s), 206KiB/s-206KiB/s (211kB/s-211kB/s), io=40.0MiB (41.9MB), run=49709-49758msec 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=150897: Fri May 8 21:33:35 2026 read: IOPS=33, BW=133KiB/s (137kB/s)(5048KiB/37834msec) slat (usec): min=92, max=15512, avg=4331.99, stdev=1861.85 clat (msec): min=5, max=356, avg=148.37, stdev=39.81 lat (msec): min=6, max=361, avg=152.70, stdev=40.30 clat percentiles (msec): | 1.00th=[ 23], 5.00th=[ 97], 10.00th=[ 107], 20.00th=[ 120], | 30.00th=[ 130], 40.00th=[ 138], 50.00th=[ 146], 60.00th=[ 155], | 70.00th=[ 165], 80.00th=[ 180], 90.00th=[ 199], 95.00th=[ 213], | 99.00th=[ 249], 99.50th=[ 284], 99.90th=[ 338], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 55, max= 240, per=25.19%, avg=133.00, stdev=43.38, samples=75 iops : min= 13, max= 60, avg=32.93, stdev=10.96, samples=75 write: IOPS=34, BW=137KiB/s (141kB/s)(5192KiB/37834msec); 0 zone resets slat (usec): min=44, max=4341, avg=239.37, stdev=261.65 clat (msec): min=47, max=663, avg=317.29, stdev=87.91 lat (msec): min=47, max=663, avg=317.53, stdev=87.92 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 192], 10.00th=[ 215], 20.00th=[ 247], | 30.00th=[ 266], 40.00th=[ 284], 50.00th=[ 305], 60.00th=[ 330], | 70.00th=[ 359], 80.00th=[ 393], 90.00th=[ 435], 95.00th=[ 477], | 99.00th=[ 567], 99.50th=[ 584], 99.90th=[ 634], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 79, max= 208, per=24.84%, avg=136.60, stdev=30.38, samples=75 iops : min= 19, max= 52, avg=33.83, stdev= 7.64, samples=75 lat (msec) : 10=0.16%, 20=0.27%, 50=0.55%, 100=2.38%, 250=56.25% lat (msec) : 500=38.83%, 750=1.56% cpu : usr=0.15%, sys=1.39%, ctx=5048, 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=150898: Fri May 8 21:33:35 2026 read: IOPS=32, BW=131KiB/s (134kB/s)(4976KiB/37941msec) slat (usec): min=1601, max=14352, avg=4432.29, stdev=1826.26 clat (msec): min=7, max=279, avg=149.60, stdev=36.46 lat (msec): min=11, max=285, avg=154.04, stdev=36.89 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 96], 10.00th=[ 109], 20.00th=[ 122], | 30.00th=[ 130], 40.00th=[ 138], 50.00th=[ 146], 60.00th=[ 157], | 70.00th=[ 165], 80.00th=[ 180], 90.00th=[ 199], 95.00th=[ 215], | 99.00th=[ 243], 99.50th=[ 249], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 39, max= 232, per=24.69%, avg=130.35, stdev=40.54, samples=75 iops : min= 9, max= 58, avg=32.27, stdev=10.13, samples=75 write: IOPS=34, BW=139KiB/s (142kB/s)(5264KiB/37941msec); 0 zone resets slat (usec): min=50, max=4606, avg=230.88, stdev=232.92 clat (msec): min=70, max=630, avg=314.79, stdev=83.03 lat (msec): min=70, max=631, avg=315.02, stdev=83.04 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 192], 10.00th=[ 213], 20.00th=[ 247], | 30.00th=[ 266], 40.00th=[ 284], 50.00th=[ 305], 60.00th=[ 326], | 70.00th=[ 355], 80.00th=[ 384], 90.00th=[ 430], 95.00th=[ 460], | 99.00th=[ 527], 99.50th=[ 575], 99.90th=[ 625], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 71, max= 216, per=25.06%, avg=137.83, stdev=33.46, samples=75 iops : min= 17, max= 54, avg=34.13, stdev= 8.46, samples=75 lat (msec) : 10=0.08%, 20=0.12%, 50=0.16%, 100=2.66%, 250=56.60% lat (msec) : 500=39.41%, 750=0.98% cpu : usr=0.14%, sys=1.33%, ctx=5101, 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=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=150899: Fri May 8 21:33:35 2026 read: IOPS=32, BW=131KiB/s (135kB/s)(4984KiB/37903msec) slat (usec): min=1521, max=17274, avg=4550.25, stdev=1819.25 clat (msec): min=8, max=294, avg=148.48, stdev=38.14 lat (msec): min=11, max=302, avg=153.03, stdev=38.62 clat percentiles (msec): | 1.00th=[ 30], 5.00th=[ 97], 10.00th=[ 107], 20.00th=[ 118], | 30.00th=[ 129], 40.00th=[ 136], 50.00th=[ 146], 60.00th=[ 155], | 70.00th=[ 165], 80.00th=[ 180], 90.00th=[ 199], 95.00th=[ 213], | 99.00th=[ 251], 99.50th=[ 275], 99.90th=[ 288], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 55, max= 240, per=24.95%, avg=131.72, stdev=40.20, samples=75 iops : min= 13, max= 60, avg=32.61, stdev=10.11, samples=75 write: IOPS=34, BW=139KiB/s (142kB/s)(5256KiB/37903msec); 0 zone resets slat (usec): min=61, max=4226, avg=243.07, stdev=254.34 clat (msec): min=137, max=688, avg=315.31, stdev=84.39 lat (msec): min=137, max=688, avg=315.56, stdev=84.39 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 190], 10.00th=[ 218], 20.00th=[ 247], | 30.00th=[ 268], 40.00th=[ 288], 50.00th=[ 305], 60.00th=[ 330], | 70.00th=[ 351], 80.00th=[ 376], 90.00th=[ 430], 95.00th=[ 468], | 99.00th=[ 575], 99.50th=[ 609], 99.90th=[ 651], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 55, max= 216, per=25.05%, avg=137.77, stdev=34.73, samples=75 iops : min= 13, max= 54, avg=34.12, stdev= 8.76, samples=75 lat (msec) : 10=0.08%, 20=0.20%, 50=0.31%, 100=2.58%, 250=55.86% lat (msec) : 500=39.65%, 750=1.33% cpu : usr=0.15%, sys=1.41%, ctx=5158, 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=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=150900: Fri May 8 21:33:35 2026 read: IOPS=33, BW=133KiB/s (137kB/s)(5060KiB/37927msec) slat (usec): min=1613, max=17164, avg=4445.07, stdev=1869.61 clat (msec): min=3, max=275, avg=149.84, stdev=38.76 lat (msec): min=7, max=283, avg=154.29, stdev=39.26 clat percentiles (msec): | 1.00th=[ 30], 5.00th=[ 99], 10.00th=[ 109], 20.00th=[ 122], | 30.00th=[ 131], 40.00th=[ 138], 50.00th=[ 146], 60.00th=[ 155], | 70.00th=[ 165], 80.00th=[ 180], 90.00th=[ 201], 95.00th=[ 218], | 99.00th=[ 253], 99.50th=[ 268], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 48, max= 248, per=25.24%, avg=133.25, stdev=43.89, samples=75 iops : min= 12, max= 62, avg=33.00, stdev=11.02, samples=75 write: IOPS=34, BW=137KiB/s (140kB/s)(5180KiB/37927msec); 0 zone resets slat (usec): min=58, max=3500, avg=231.33, stdev=223.87 clat (msec): min=138, max=629, avg=316.94, stdev=84.88 lat (msec): min=139, max=630, avg=317.18, stdev=84.89 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 190], 10.00th=[ 215], 20.00th=[ 247], | 30.00th=[ 271], 40.00th=[ 288], 50.00th=[ 305], 60.00th=[ 330], | 70.00th=[ 359], 80.00th=[ 388], 90.00th=[ 430], 95.00th=[ 464], | 99.00th=[ 567], 99.50th=[ 592], 99.90th=[ 625], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 55, max= 208, per=24.67%, avg=135.68, stdev=31.54, samples=75 iops : min= 13, max= 52, avg=33.60, stdev= 7.98, samples=75 lat (msec) : 4=0.04%, 10=0.04%, 20=0.16%, 50=0.51%, 100=2.07% lat (msec) : 250=56.72%, 500=39.26%, 750=1.21% cpu : usr=0.12%, sys=1.43%, ctx=5157, 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=529KiB/s (542kB/s), 131KiB/s-133KiB/s (134kB/s-137kB/s), io=19.6MiB (20.5MB), run=37834-37941msec WRITE: bw=551KiB/s (564kB/s), 137KiB/s-139KiB/s (140kB/s-142kB/s), io=20.4MiB (21.4MB), run=37834-37941msec 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=150909: Fri May 8 21:33:39 2026 read: IOPS=5, BW=214MiB/s (224MB/s)(40.0MiB/187msec) slat (nsec): min=13146k, max=13146k, avg=13145598.00, stdev= 0.00 clat (nsec): min=165984k, max=165984k, avg=165983827.00, stdev= 0.00 lat (nsec): min=179134k, max=179134k, avg=179134067.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 167], 10.00th=[ 167], 20.00th=[ 167], | 30.00th=[ 167], 40.00th=[ 167], 50.00th=[ 167], 60.00th=[ 167], | 70.00th=[ 167], 80.00th=[ 167], 90.00th=[ 167], 95.00th=[ 167], | 99.00th=[ 167], 99.50th=[ 167], 99.90th=[ 167], 99.95th=[ 167], | 99.99th=[ 167] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=6.45%, ctx=37, 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=214MiB/s (224MB/s), 214MiB/s-214MiB/s (224MB/s-224MB/s), io=40.0MiB (41.9MB), run=187-187msec 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