== sanity test 398c: run fio to test AIO ================= 05:55:08 (1788515708) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.581113 s, 72.2 MB/s osc.lustre-OST0000-osc-ffff9d7a83c3d000.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=146346: Fri Sep 4 05:58:01 2026 write: IOPS=15, BW=63.7KiB/s (65.2kB/s)(10.0MiB/160860msec); 0 zone resets slat (usec): min=27, max=23657, avg=215.86, stdev=970.76 clat (msec): min=70, max=2276, avg=1004.74, stdev=303.28 lat (msec): min=70, max=2276, avg=1004.96, stdev=303.27 clat percentiles (msec): | 1.00th=[ 253], 5.00th=[ 634], 10.00th=[ 709], 20.00th=[ 785], | 30.00th=[ 852], 40.00th=[ 902], 50.00th=[ 969], 60.00th=[ 1028], | 70.00th=[ 1099], 80.00th=[ 1200], 90.00th=[ 1351], 95.00th=[ 1536], | 99.00th=[ 2089], 99.50th=[ 2198], 99.90th=[ 2265], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 7, max= 231, per=24.94%, avg=63.34, stdev=28.66, samples=318 iops : min= 1, max= 57, avg=15.41, stdev= 7.18, samples=318 lat (msec) : 100=0.04%, 250=0.70%, 500=1.99%, 750=11.56%, 1000=41.76% lat (msec) : 2000=42.42%, >=2000=1.52% cpu : usr=0.04%, sys=0.19%, ctx=1705, 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=146347: Fri Sep 4 05:58:01 2026 write: IOPS=15, BW=63.5KiB/s (65.0kB/s)(10.0MiB/161227msec); 0 zone resets slat (usec): min=28, max=23664, avg=193.58, stdev=764.76 clat (msec): min=170, max=2257, avg=1006.53, stdev=301.10 lat (msec): min=170, max=2257, avg=1006.72, stdev=301.12 clat percentiles (msec): | 1.00th=[ 253], 5.00th=[ 642], 10.00th=[ 693], 20.00th=[ 785], | 30.00th=[ 844], 40.00th=[ 919], 50.00th=[ 969], 60.00th=[ 1028], | 70.00th=[ 1099], 80.00th=[ 1200], 90.00th=[ 1385], 95.00th=[ 1536], | 99.00th=[ 2022], 99.50th=[ 2123], 99.90th=[ 2232], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 7, max= 232, per=24.93%, avg=63.33, stdev=31.60, samples=318 iops : min= 1, max= 58, avg=15.41, stdev= 7.92, samples=318 lat (msec) : 250=0.62%, 500=1.91%, 750=13.05%, 1000=39.14%, 2000=43.98% lat (msec) : >=2000=1.29% cpu : usr=0.03%, sys=0.22%, ctx=1832, 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=146348: Fri Sep 4 05:58:01 2026 write: IOPS=15, BW=63.6KiB/s (65.1kB/s)(10.0MiB/161034msec); 0 zone resets slat (usec): min=27, max=10359, avg=149.77, stdev=471.63 clat (msec): min=155, max=2244, avg=1005.25, stdev=299.56 lat (msec): min=155, max=2244, avg=1005.40, stdev=299.57 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 642], 10.00th=[ 701], 20.00th=[ 785], | 30.00th=[ 852], 40.00th=[ 919], 50.00th=[ 969], 60.00th=[ 1028], | 70.00th=[ 1099], 80.00th=[ 1200], 90.00th=[ 1351], 95.00th=[ 1536], | 99.00th=[ 2005], 99.50th=[ 2140], 99.90th=[ 2232], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 7, max= 191, per=25.76%, avg=65.43, stdev=29.41, samples=308 iops : min= 1, max= 47, avg=15.94, stdev= 7.36, samples=308 lat (msec) : 250=0.62%, 500=1.95%, 750=12.73%, 1000=40.43%, 2000=42.85% lat (msec) : >=2000=1.41% cpu : usr=0.03%, sys=0.18%, ctx=1533, 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=146349: Fri Sep 4 05:58:01 2026 write: IOPS=15, BW=63.5KiB/s (65.0kB/s)(10.0MiB/161236msec); 0 zone resets slat (usec): min=28, max=14859, avg=185.59, stdev=744.57 clat (msec): min=197, max=2251, avg=1006.50, stdev=296.52 lat (msec): min=197, max=2251, avg=1006.69, stdev=296.53 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 642], 10.00th=[ 709], 20.00th=[ 785], | 30.00th=[ 852], 40.00th=[ 911], 50.00th=[ 969], 60.00th=[ 1028], | 70.00th=[ 1099], 80.00th=[ 1200], 90.00th=[ 1385], 95.00th=[ 1519], | 99.00th=[ 2089], 99.50th=[ 2140], 99.90th=[ 2232], 99.95th=[ 2232], | 99.99th=[ 2265] bw ( KiB/s): min= 7, max= 255, per=25.19%, avg=63.98, stdev=29.83, samples=315 iops : min= 1, max= 63, avg=15.57, stdev= 7.47, samples=315 lat (msec) : 250=0.62%, 500=1.95%, 750=12.70%, 1000=40.55%, 2000=42.77% lat (msec) : >=2000=1.41% cpu : usr=0.03%, sys=0.18%, ctx=1618, 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=254KiB/s (260kB/s), 63.5KiB/s-63.7KiB/s (65.0kB/s-65.2kB/s), io=40.0MiB (41.9MB), run=160860-161236msec 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=146382: Fri Sep 4 05:59:57 2026 read: IOPS=11, BW=46.8KiB/s (47.0kB/s)(5048KiB/107763msec) slat (usec): min=2523, max=69117, avg=13723.81, stdev=7659.32 clat (msec): min=15, max=990, avg=416.57, stdev=109.94 lat (msec): min=32, max=1019, avg=430.30, stdev=111.18 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 271], 10.00th=[ 296], 20.00th=[ 326], | 30.00th=[ 351], 40.00th=[ 376], 50.00th=[ 405], 60.00th=[ 426], | 70.00th=[ 460], 80.00th=[ 498], 90.00th=[ 567], 95.00th=[ 634], | 99.00th=[ 718], 99.50th=[ 768], 99.90th=[ 852], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 7, max= 135, per=25.09%, avg=46.66, stdev=20.97, samples=212 iops : min= 1, max= 33, avg=11.21, stdev= 5.20, samples=212 write: IOPS=12, BW=48.2KiB/s (49.3kB/s)(5192KiB/107763msec); 0 zone resets slat (usec): min=37, max=12743, avg=252.83, stdev=779.12 clat (msec): min=322, max=1880, avg=906.68, stdev=233.94 lat (msec): min=323, max=1880, avg=906.94, stdev=233.95 clat percentiles (msec): | 1.00th=[ 426], 5.00th=[ 542], 10.00th=[ 634], 20.00th=[ 718], | 30.00th=[ 776], 40.00th=[ 844], 50.00th=[ 885], 60.00th=[ 936], | 70.00th=[ 1003], 80.00th=[ 1083], 90.00th=[ 1217], 95.00th=[ 1334], | 99.00th=[ 1552], 99.50th=[ 1737], 99.90th=[ 1871], 99.95th=[ 1888], | 99.99th=[ 1888] bw ( KiB/s): min= 7, max= 112, per=24.81%, avg=47.89, stdev=20.24, samples=213 iops : min= 1, max= 28, avg=11.52, stdev= 5.08, samples=213 lat (msec) : 20=0.04%, 50=0.08%, 100=0.04%, 250=1.45%, 500=39.49% lat (msec) : 750=20.62%, 1000=22.66%, 2000=15.62% cpu : usr=0.08%, sys=0.57%, ctx=4967, 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=146383: Fri Sep 4 05:59:57 2026 read: IOPS=11, BW=46.2KiB/s (47.3kB/s)(4976KiB/107755msec) slat (usec): min=2887, max=60888, avg=13915.11, stdev=7563.10 clat (msec): min=19, max=916, avg=412.46, stdev=108.18 lat (msec): min=31, max=939, avg=426.39, stdev=109.40 clat percentiles (msec): | 1.00th=[ 205], 5.00th=[ 271], 10.00th=[ 292], 20.00th=[ 330], | 30.00th=[ 351], 40.00th=[ 376], 50.00th=[ 401], 60.00th=[ 426], | 70.00th=[ 456], 80.00th=[ 489], 90.00th=[ 558], 95.00th=[ 617], | 99.00th=[ 709], 99.50th=[ 751], 99.90th=[ 802], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 7, max= 104, per=24.58%, avg=45.72, stdev=20.25, samples=213 iops : min= 1, max= 26, avg=10.98, stdev= 5.04, samples=213 write: IOPS=12, BW=48.9KiB/s (50.0kB/s)(5264KiB/107755msec); 0 zone resets slat (usec): min=32, max=17357, avg=241.32, stdev=824.54 clat (msec): min=324, max=1876, avg=904.75, stdev=244.76 lat (msec): min=324, max=1876, avg=904.99, stdev=244.75 clat percentiles (msec): | 1.00th=[ 426], 5.00th=[ 523], 10.00th=[ 600], 20.00th=[ 693], | 30.00th=[ 776], 40.00th=[ 835], 50.00th=[ 885], 60.00th=[ 944], | 70.00th=[ 1011], 80.00th=[ 1099], 90.00th=[ 1217], 95.00th=[ 1318], | 99.00th=[ 1552], 99.50th=[ 1821], 99.90th=[ 1871], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 7, max= 95, per=25.06%, avg=48.36, stdev=20.35, samples=214 iops : min= 1, max= 23, avg=11.64, stdev= 5.09, samples=214 lat (msec) : 20=0.04%, 50=0.12%, 100=0.16%, 250=0.98%, 500=40.47% lat (msec) : 750=19.84%, 1000=22.15%, 2000=16.25% cpu : usr=0.11%, sys=0.60%, ctx=4802, 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=146384: Fri Sep 4 05:59:57 2026 read: IOPS=11, BW=46.3KiB/s (47.4kB/s)(4984KiB/107759msec) slat (usec): min=2347, max=59130, avg=13358.05, stdev=7204.09 clat (msec): min=11, max=990, avg=411.65, stdev=111.55 lat (msec): min=23, max=1017, avg=425.02, stdev=112.54 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 271], 10.00th=[ 296], 20.00th=[ 326], | 30.00th=[ 355], 40.00th=[ 376], 50.00th=[ 401], 60.00th=[ 422], | 70.00th=[ 447], 80.00th=[ 493], 90.00th=[ 558], 95.00th=[ 625], | 99.00th=[ 718], 99.50th=[ 760], 99.90th=[ 827], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 7, max= 111, per=24.87%, avg=46.25, stdev=21.29, samples=212 iops : min= 1, max= 27, avg=11.11, stdev= 5.31, samples=212 write: IOPS=12, BW=48.8KiB/s (49.9kB/s)(5256KiB/107759msec); 0 zone resets slat (usec): min=31, max=10338, avg=242.40, stdev=678.60 clat (msec): min=357, max=1880, avg=905.98, stdev=239.58 lat (msec): min=357, max=1880, avg=906.23, stdev=239.57 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 531], 10.00th=[ 634], 20.00th=[ 709], | 30.00th=[ 768], 40.00th=[ 835], 50.00th=[ 894], 60.00th=[ 944], | 70.00th=[ 1003], 80.00th=[ 1083], 90.00th=[ 1217], 95.00th=[ 1351], | 99.00th=[ 1536], 99.50th=[ 1821], 99.90th=[ 1871], 99.95th=[ 1888], | 99.99th=[ 1888] bw ( KiB/s): min= 8, max= 112, per=25.02%, avg=48.29, stdev=20.64, samples=213 iops : min= 2, max= 28, avg=11.62, stdev= 5.20, samples=213 lat (msec) : 20=0.16%, 50=0.12%, 100=0.23%, 250=1.05%, 500=39.96% lat (msec) : 750=20.31%, 1000=22.15%, 2000=16.02% cpu : usr=0.09%, sys=0.58%, ctx=4361, 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=146385: Fri Sep 4 05:59:57 2026 read: IOPS=11, BW=47.2KiB/s (48.3kB/s)(5060KiB/107166msec) slat (usec): min=54, max=70236, avg=13686.92, stdev=7725.92 clat (msec): min=15, max=1349, avg=411.65, stdev=123.36 lat (msec): min=29, max=1372, avg=425.35, stdev=124.62 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 266], 10.00th=[ 296], 20.00th=[ 326], | 30.00th=[ 347], 40.00th=[ 368], 50.00th=[ 397], 60.00th=[ 426], | 70.00th=[ 456], 80.00th=[ 493], 90.00th=[ 550], 95.00th=[ 625], | 99.00th=[ 760], 99.50th=[ 911], 99.90th=[ 1267], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 8, max= 111, per=26.11%, avg=48.56, stdev=19.41, samples=205 iops : min= 2, max= 27, avg=11.68, stdev= 4.84, samples=205 write: IOPS=12, BW=48.3KiB/s (49.5kB/s)(5180KiB/107166msec); 0 zone resets slat (usec): min=30, max=15508, avg=281.02, stdev=886.72 clat (msec): min=212, max=2218, avg=907.01, stdev=256.80 lat (msec): min=212, max=2218, avg=907.30, stdev=256.80 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 523], 10.00th=[ 625], 20.00th=[ 709], | 30.00th=[ 768], 40.00th=[ 827], 50.00th=[ 885], 60.00th=[ 944], | 70.00th=[ 1003], 80.00th=[ 1099], 90.00th=[ 1217], 95.00th=[ 1368], | 99.00th=[ 1787], 99.50th=[ 1871], 99.90th=[ 2140], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 7, max= 103, per=24.76%, avg=47.78, stdev=19.25, samples=212 iops : min= 1, max= 25, avg=11.50, stdev= 4.78, samples=212 lat (msec) : 20=0.08%, 50=0.43%, 100=0.20%, 250=1.13%, 500=40.59% lat (msec) : 750=20.04%, 1000=22.07%, 2000=15.23%, >=2000=0.23% cpu : usr=0.10%, sys=0.61%, ctx=4767, 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=186KiB/s (191kB/s), 46.2KiB/s-47.2KiB/s (47.3kB/s-48.3kB/s), io=19.6MiB (20.5MB), run=107166-107763msec WRITE: bw=194KiB/s (199kB/s), 48.2KiB/s-48.9KiB/s (49.3kB/s-50.0kB/s), io=20.4MiB (21.4MB), run=107166-107763msec 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=146406: Fri Sep 4 06:00:08 2026 read: IOPS=1, BW=75.3MiB/s (78.0MB/s)(40.0MiB/531msec) slat (nsec): min=46781k, max=46781k, avg=46781476.00, stdev= 0.00 clat (nsec): min=464384k, max=464384k, avg=464384313.00, stdev= 0.00 lat (nsec): min=511170k, max=511170k, avg=511169544.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 464], 5.00th=[ 464], 10.00th=[ 464], 20.00th=[ 464], | 30.00th=[ 464], 40.00th=[ 464], 50.00th=[ 464], 60.00th=[ 464], | 70.00th=[ 464], 80.00th=[ 464], 90.00th=[ 464], 95.00th=[ 464], | 99.00th=[ 464], 99.50th=[ 464], 99.90th=[ 464], 99.95th=[ 464], | 99.99th=[ 464] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.45%, ctx=15, 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=75.3MiB/s (78.0MB/s), 75.3MiB/s-75.3MiB/s (78.0MB/s-78.0MB/s), io=40.0MiB (41.9MB), run=531-531msec 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