== sanity test 398c: run fio to test AIO ================= 14:31:08 (1783967468) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.479348 s, 87.5 MB/s osc.lustre-OST0000-osc-ffff8d76456ad000.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=144599: Mon Jul 13 14:33:51 2026 write: IOPS=16, BW=67.2KiB/s (68.8kB/s)(10.0MiB/152341msec); 0 zone resets slat (usec): min=35, max=18470, avg=274.48, stdev=887.10 clat (msec): min=135, max=2092, avg=950.79, stdev=306.17 lat (msec): min=135, max=2092, avg=951.07, stdev=306.21 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 567], 10.00th=[ 651], 20.00th=[ 743], | 30.00th=[ 802], 40.00th=[ 860], 50.00th=[ 911], 60.00th=[ 961], | 70.00th=[ 1036], 80.00th=[ 1150], 90.00th=[ 1351], 95.00th=[ 1569], | 99.00th=[ 1871], 99.50th=[ 2056], 99.90th=[ 2089], 99.95th=[ 2089], | 99.99th=[ 2089] bw ( KiB/s): min= 7, max= 253, per=24.88%, avg=66.69, stdev=29.42, samples=302 iops : min= 1, max= 63, avg=16.22, stdev= 7.38, samples=302 lat (msec) : 250=1.88%, 500=2.30%, 750=17.42%, 1000=44.49%, 2000=33.28% lat (msec) : >=2000=0.62% cpu : usr=0.04%, sys=0.29%, ctx=2225, 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=144600: Mon Jul 13 14:33:51 2026 write: IOPS=16, BW=67.3KiB/s (68.9kB/s)(10.0MiB/152095msec); 0 zone resets slat (usec): min=39, max=10603, avg=230.70, stdev=617.77 clat (msec): min=143, max=2653, avg=948.85, stdev=313.99 lat (msec): min=143, max=2654, avg=949.09, stdev=314.01 clat percentiles (msec): | 1.00th=[ 180], 5.00th=[ 542], 10.00th=[ 651], 20.00th=[ 735], | 30.00th=[ 802], 40.00th=[ 852], 50.00th=[ 911], 60.00th=[ 961], | 70.00th=[ 1036], 80.00th=[ 1150], 90.00th=[ 1351], 95.00th=[ 1552], | 99.00th=[ 1888], 99.50th=[ 2056], 99.90th=[ 2467], 99.95th=[ 2467], | 99.99th=[ 2668] bw ( KiB/s): min= 7, max= 253, per=25.31%, avg=67.82, stdev=30.73, samples=297 iops : min= 1, max= 63, avg=16.51, stdev= 7.71, samples=297 lat (msec) : 250=2.50%, 500=1.91%, 750=17.97%, 1000=42.42%, 2000=34.61% lat (msec) : >=2000=0.59% cpu : usr=0.05%, sys=0.27%, ctx=2236, 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=144601: Mon Jul 13 14:33:51 2026 write: IOPS=16, BW=67.3KiB/s (68.9kB/s)(10.0MiB/152094msec); 0 zone resets slat (usec): min=36, max=16776, avg=225.90, stdev=631.81 clat (msec): min=123, max=2651, avg=948.81, stdev=312.37 lat (msec): min=123, max=2654, avg=949.03, stdev=312.37 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 567], 10.00th=[ 659], 20.00th=[ 735], | 30.00th=[ 793], 40.00th=[ 852], 50.00th=[ 894], 60.00th=[ 961], | 70.00th=[ 1036], 80.00th=[ 1150], 90.00th=[ 1368], 95.00th=[ 1552], | 99.00th=[ 1905], 99.50th=[ 2039], 99.90th=[ 2467], 99.95th=[ 2567], | 99.99th=[ 2668] bw ( KiB/s): min= 15, max= 253, per=25.05%, avg=67.14, stdev=30.39, samples=300 iops : min= 3, max= 63, avg=16.33, stdev= 7.64, samples=300 lat (msec) : 250=2.50%, 500=1.76%, 750=18.01%, 1000=43.63%, 2000=33.59% lat (msec) : >=2000=0.51% cpu : usr=0.04%, sys=0.28%, ctx=2140, 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=144602: Mon Jul 13 14:33:51 2026 write: IOPS=16, BW=67.5KiB/s (69.1kB/s)(10.0MiB/151770msec); 0 zone resets slat (usec): min=35, max=18518, avg=251.86, stdev=808.03 clat (msec): min=94, max=2385, avg=947.58, stdev=310.63 lat (msec): min=95, max=2386, avg=947.84, stdev=310.66 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 558], 10.00th=[ 651], 20.00th=[ 735], | 30.00th=[ 802], 40.00th=[ 852], 50.00th=[ 902], 60.00th=[ 969], | 70.00th=[ 1036], 80.00th=[ 1167], 90.00th=[ 1334], 95.00th=[ 1552], | 99.00th=[ 1905], 99.50th=[ 2005], 99.90th=[ 2333], 99.95th=[ 2333], | 99.99th=[ 2400] bw ( KiB/s): min= 7, max= 253, per=25.04%, avg=67.12, stdev=30.10, samples=300 iops : min= 1, max= 63, avg=16.33, stdev= 7.54, samples=300 lat (msec) : 100=0.12%, 250=2.27%, 500=2.15%, 750=17.93%, 1000=43.05% lat (msec) : 2000=33.87%, >=2000=0.62% cpu : usr=0.05%, sys=0.27%, ctx=2355, 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=269KiB/s (275kB/s), 67.2KiB/s-67.5KiB/s (68.8kB/s-69.1kB/s), io=40.0MiB (41.9MB), run=151770-152341msec 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=144634: Mon Jul 13 14:35:53 2026 read: IOPS=11, BW=46.1KiB/s (47.2kB/s)(5048KiB/109549msec) slat (usec): min=3208, max=63811, avg=14740.18, stdev=7941.36 clat (msec): min=23, max=919, avg=421.91, stdev=105.78 lat (msec): min=30, max=950, avg=436.65, stdev=106.51 clat percentiles (msec): | 1.00th=[ 228], 5.00th=[ 284], 10.00th=[ 309], 20.00th=[ 338], | 30.00th=[ 359], 40.00th=[ 384], 50.00th=[ 414], 60.00th=[ 435], | 70.00th=[ 460], 80.00th=[ 498], 90.00th=[ 550], 95.00th=[ 617], | 99.00th=[ 751], 99.50th=[ 785], 99.90th=[ 869], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 7, max= 111, per=25.01%, avg=45.77, stdev=20.70, samples=216 iops : min= 1, max= 27, avg=10.93, stdev= 5.20, samples=216 write: IOPS=11, BW=47.4KiB/s (48.5kB/s)(5192KiB/109549msec); 0 zone resets slat (usec): min=52, max=24739, avg=339.76, stdev=1084.92 clat (msec): min=303, max=1662, avg=922.05, stdev=235.04 lat (msec): min=303, max=1662, avg=922.39, stdev=235.02 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 567], 10.00th=[ 642], 20.00th=[ 726], | 30.00th=[ 785], 40.00th=[ 835], 50.00th=[ 894], 60.00th=[ 953], | 70.00th=[ 1036], 80.00th=[ 1133], 90.00th=[ 1267], 95.00th=[ 1351], | 99.00th=[ 1485], 99.50th=[ 1536], 99.90th=[ 1620], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 6, max= 111, per=24.63%, avg=46.79, stdev=19.85, samples=217 iops : min= 1, max= 27, avg=11.18, stdev= 4.95, samples=217 lat (msec) : 50=0.12%, 100=0.04%, 250=0.86%, 500=40.27%, 750=19.96% lat (msec) : 1000=21.21%, 2000=17.54% cpu : usr=0.10%, sys=0.70%, ctx=4797, 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=144635: Mon Jul 13 14:35:53 2026 read: IOPS=11, BW=45.4KiB/s (46.5kB/s)(4976KiB/109625msec) slat (usec): min=2971, max=56511, avg=14824.19, stdev=7987.48 clat (msec): min=12, max=921, avg=418.68, stdev=106.03 lat (msec): min=26, max=956, avg=433.51, stdev=107.03 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 275], 10.00th=[ 300], 20.00th=[ 334], | 30.00th=[ 359], 40.00th=[ 388], 50.00th=[ 409], 60.00th=[ 430], | 70.00th=[ 460], 80.00th=[ 498], 90.00th=[ 558], 95.00th=[ 600], | 99.00th=[ 735], 99.50th=[ 785], 99.90th=[ 827], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 7, max= 103, per=24.69%, avg=45.18, stdev=20.66, samples=215 iops : min= 1, max= 25, avg=10.78, stdev= 5.19, samples=215 write: IOPS=12, BW=48.0KiB/s (49.2kB/s)(5264KiB/109625msec); 0 zone resets slat (usec): min=43, max=24274, avg=418.16, stdev=1544.75 clat (msec): min=387, max=1603, avg=919.27, stdev=238.39 lat (msec): min=387, max=1604, avg=919.69, stdev=238.41 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 550], 10.00th=[ 617], 20.00th=[ 726], | 30.00th=[ 793], 40.00th=[ 844], 50.00th=[ 894], 60.00th=[ 953], | 70.00th=[ 1028], 80.00th=[ 1116], 90.00th=[ 1267], 95.00th=[ 1351], | 99.00th=[ 1502], 99.50th=[ 1569], 99.90th=[ 1603], 99.95th=[ 1603], | 99.99th=[ 1603] bw ( KiB/s): min= 7, max= 126, per=25.11%, avg=47.72, stdev=20.18, samples=216 iops : min= 1, max= 31, avg=11.42, stdev= 5.05, samples=216 lat (msec) : 20=0.04%, 50=0.12%, 100=0.12%, 250=0.94%, 500=39.69% lat (msec) : 750=19.77%, 1000=21.91%, 2000=17.42% cpu : usr=0.10%, sys=0.69%, ctx=4742, 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=144636: Mon Jul 13 14:35:53 2026 read: IOPS=11, BW=45.5KiB/s (46.6kB/s)(4984KiB/109553msec) slat (usec): min=3012, max=59943, avg=14275.54, stdev=7738.50 clat (msec): min=29, max=941, avg=419.43, stdev=107.63 lat (msec): min=36, max=964, avg=433.72, stdev=108.25 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 284], 10.00th=[ 305], 20.00th=[ 342], | 30.00th=[ 363], 40.00th=[ 388], 50.00th=[ 409], 60.00th=[ 430], | 70.00th=[ 456], 80.00th=[ 485], 90.00th=[ 558], 95.00th=[ 609], | 99.00th=[ 743], 99.50th=[ 818], 99.90th=[ 936], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 7, max= 143, per=24.74%, avg=45.27, stdev=21.56, samples=216 iops : min= 1, max= 35, avg=10.80, stdev= 5.40, samples=216 write: IOPS=11, BW=47.0KiB/s (49.1kB/s)(5256KiB/109553msec); 0 zone resets slat (usec): min=49, max=21474, avg=361.38, stdev=1184.59 clat (msec): min=340, max=1692, avg=919.14, stdev=233.53 lat (msec): min=340, max=1693, avg=919.50, stdev=233.54 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 558], 10.00th=[ 634], 20.00th=[ 735], | 30.00th=[ 785], 40.00th=[ 844], 50.00th=[ 894], 60.00th=[ 961], | 70.00th=[ 1028], 80.00th=[ 1099], 90.00th=[ 1234], 95.00th=[ 1351], | 99.00th=[ 1536], 99.50th=[ 1603], 99.90th=[ 1636], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 7, max= 104, per=25.12%, avg=47.73, stdev=19.95, samples=215 iops : min= 1, max= 26, avg=11.42, stdev= 5.01, samples=215 lat (msec) : 50=0.31%, 100=0.16%, 250=0.35%, 500=41.05%, 750=17.93% lat (msec) : 1000=23.20%, 2000=16.99% cpu : usr=0.09%, sys=0.68%, ctx=4574, 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=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=144637: Mon Jul 13 14:35:53 2026 read: IOPS=11, BW=46.6KiB/s (47.7kB/s)(5060KiB/108588msec) slat (usec): min=75, max=66810, avg=14519.90, stdev=8239.77 clat (msec): min=17, max=1084, avg=416.54, stdev=112.94 lat (msec): min=20, max=1095, avg=431.07, stdev=113.96 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 271], 10.00th=[ 296], 20.00th=[ 334], | 30.00th=[ 359], 40.00th=[ 380], 50.00th=[ 405], 60.00th=[ 430], | 70.00th=[ 460], 80.00th=[ 493], 90.00th=[ 558], 95.00th=[ 609], | 99.00th=[ 776], 99.50th=[ 852], 99.90th=[ 1062], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7, max= 104, per=25.33%, avg=46.35, stdev=20.39, samples=214 iops : min= 1, max= 26, avg=11.07, stdev= 5.13, samples=214 write: IOPS=11, BW=47.7KiB/s (48.8kB/s)(5180KiB/108588msec); 0 zone resets slat (usec): min=40, max=25879, avg=336.02, stdev=1230.65 clat (msec): min=179, max=1689, avg=919.28, stdev=243.87 lat (msec): min=179, max=1689, avg=919.62, stdev=243.88 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 558], 10.00th=[ 634], 20.00th=[ 726], | 30.00th=[ 785], 40.00th=[ 835], 50.00th=[ 894], 60.00th=[ 953], | 70.00th=[ 1028], 80.00th=[ 1116], 90.00th=[ 1267], 95.00th=[ 1351], | 99.00th=[ 1552], 99.50th=[ 1603], 99.90th=[ 1636], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 7, max= 104, per=24.85%, avg=47.21, stdev=20.09, samples=214 iops : min= 1, max= 26, avg=11.29, stdev= 5.03, samples=214 lat (msec) : 20=0.08%, 50=0.12%, 100=0.31%, 250=0.86%, 500=40.82% lat (msec) : 750=18.95%, 1000=21.56%, 2000=17.30% cpu : usr=0.11%, sys=0.70%, ctx=4643, 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=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=183KiB/s (187kB/s), 45.4KiB/s-46.6KiB/s (46.5kB/s-47.7kB/s), io=19.6MiB (20.5MB), run=108588-109625msec WRITE: bw=191KiB/s (195kB/s), 47.4KiB/s-48.0KiB/s (48.5kB/s-49.2kB/s), io=20.4MiB (21.4MB), run=108588-109625msec 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=144658: Mon Jul 13 14:36:04 2026 read: IOPS=1, BW=67.9MiB/s (71.2MB/s)(40.0MiB/589msec) slat (nsec): min=26649k, max=26649k, avg=26649106.00, stdev= 0.00 clat (nsec): min=550841k, max=550841k, avg=550841319.00, stdev= 0.00 lat (nsec): min=577521k, max=577521k, avg=577520650.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 550], 5.00th=[ 550], 10.00th=[ 550], 20.00th=[ 550], | 30.00th=[ 550], 40.00th=[ 550], 50.00th=[ 550], 60.00th=[ 550], | 70.00th=[ 550], 80.00th=[ 550], 90.00th=[ 550], 95.00th=[ 550], | 99.00th=[ 550], 99.50th=[ 550], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.38%, ctx=5, 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=67.9MiB/s (71.2MB/s), 67.9MiB/s-67.9MiB/s (71.2MB/s-71.2MB/s), io=40.0MiB (41.9MB), run=589-589msec 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