== sanity test 398c: run fio to test AIO ================= 10:07:15 (1790777235) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.587429 s, 71.4 MB/s osc.lustre-OST0000-osc-ffff999a62795000.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=145429: Wed Sep 30 10:10:16 2026 write: IOPS=15, BW=60.0KiB/s (62.4kB/s)(10.0MiB/167922msec); 0 zone resets slat (usec): min=24, max=17427, avg=239.82, stdev=940.99 clat (msec): min=166, max=2155, avg=1048.92, stdev=330.24 lat (msec): min=166, max=2156, avg=1049.16, stdev=330.25 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 600], 10.00th=[ 693], 20.00th=[ 785], | 30.00th=[ 869], 40.00th=[ 919], 50.00th=[ 1003], 60.00th=[ 1083], | 70.00th=[ 1183], 80.00th=[ 1301], 90.00th=[ 1502], 95.00th=[ 1670], | 99.00th=[ 1972], 99.50th=[ 2072], 99.90th=[ 2165], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 7, max= 254, per=25.47%, avg=61.90, stdev=32.47, samples=325 iops : min= 1, max= 63, avg=15.00, stdev= 8.14, samples=325 lat (msec) : 250=0.62%, 500=2.66%, 750=13.05%, 1000=32.73%, 2000=50.23% lat (msec) : >=2000=0.70% cpu : usr=0.05%, sys=0.22%, ctx=1772, majf=0, minf=8 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=145430: Wed Sep 30 10:10:16 2026 write: IOPS=15, BW=60.9KiB/s (62.3kB/s)(10.0MiB/168215msec); 0 zone resets slat (usec): min=25, max=22248, avg=258.15, stdev=1024.29 clat (msec): min=104, max=2102, avg=1050.00, stdev=328.28 lat (msec): min=105, max=2102, avg=1050.26, stdev=328.28 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 625], 10.00th=[ 693], 20.00th=[ 785], | 30.00th=[ 869], 40.00th=[ 944], 50.00th=[ 1003], 60.00th=[ 1083], | 70.00th=[ 1167], 80.00th=[ 1284], 90.00th=[ 1485], 95.00th=[ 1687], | 99.00th=[ 1989], 99.50th=[ 2039], 99.90th=[ 2072], 99.95th=[ 2089], | 99.99th=[ 2106] bw ( KiB/s): min= 7, max= 135, per=25.00%, avg=60.76, stdev=30.20, samples=331 iops : min= 1, max= 33, avg=14.71, stdev= 7.61, samples=331 lat (msec) : 250=0.62%, 500=3.28%, 750=12.93%, 1000=32.54%, 2000=49.69% lat (msec) : >=2000=0.94% cpu : usr=0.05%, sys=0.24%, ctx=1878, 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=145431: Wed Sep 30 10:10:16 2026 write: IOPS=15, BW=60.9KiB/s (62.4kB/s)(10.0MiB/168036msec); 0 zone resets slat (usec): min=24, max=21996, avg=226.91, stdev=917.80 clat (msec): min=113, max=2094, avg=1049.34, stdev=327.93 lat (msec): min=113, max=2094, avg=1049.57, stdev=327.94 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 600], 10.00th=[ 684], 20.00th=[ 776], | 30.00th=[ 860], 40.00th=[ 927], 50.00th=[ 1003], 60.00th=[ 1083], | 70.00th=[ 1183], 80.00th=[ 1318], 90.00th=[ 1502], 95.00th=[ 1653], | 99.00th=[ 1972], 99.50th=[ 2039], 99.90th=[ 2089], 99.95th=[ 2089], | 99.99th=[ 2089] bw ( KiB/s): min= 7, max= 166, per=25.09%, avg=60.96, stdev=28.51, samples=330 iops : min= 1, max= 41, avg=14.76, stdev= 7.17, samples=330 lat (msec) : 250=0.35%, 500=3.24%, 750=12.89%, 1000=32.58%, 2000=50.31% lat (msec) : >=2000=0.62% cpu : usr=0.04%, sys=0.25%, ctx=1703, majf=0, minf=8 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=145432: Wed Sep 30 10:10:16 2026 write: IOPS=15, BW=60.9KiB/s (62.3kB/s)(10.0MiB/168218msec); 0 zone resets slat (usec): min=25, max=18643, avg=246.34, stdev=982.02 clat (msec): min=223, max=2155, avg=1049.93, stdev=327.94 lat (msec): min=224, max=2155, avg=1050.17, stdev=327.94 clat percentiles (msec): | 1.00th=[ 426], 5.00th=[ 600], 10.00th=[ 693], 20.00th=[ 776], | 30.00th=[ 869], 40.00th=[ 927], 50.00th=[ 1003], 60.00th=[ 1083], | 70.00th=[ 1183], 80.00th=[ 1284], 90.00th=[ 1519], 95.00th=[ 1670], | 99.00th=[ 1938], 99.50th=[ 1989], 99.90th=[ 2106], 99.95th=[ 2123], | 99.99th=[ 2165] bw ( KiB/s): min= 7, max= 128, per=26.05%, avg=63.29, stdev=28.89, samples=318 iops : min= 1, max= 32, avg=15.35, stdev= 7.27, samples=318 lat (msec) : 250=0.62%, 500=1.88%, 750=14.30%, 1000=32.81%, 2000=50.00% lat (msec) : >=2000=0.39% cpu : usr=0.05%, sys=0.22%, 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 Run status group 0 (all jobs): WRITE: bw=243KiB/s (249kB/s), 60.9KiB/s-60.0KiB/s (62.3kB/s-62.4kB/s), io=40.0MiB (41.9MB), run=167922-168218msec 6% of I/O are 1-page (PAGE_SIZE=4096), max 50% 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=145467: Wed Sep 30 10:12:14 2026 read: IOPS=11, BW=46.1KiB/s (47.2kB/s)(5048KiB/109614msec) slat (usec): min=2946, max=72235, avg=15897.88, stdev=9449.56 clat (msec): min=22, max=1072, avg=422.48, stdev=133.67 lat (msec): min=29, max=1088, avg=438.39, stdev=136.03 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 253], 10.00th=[ 284], 20.00th=[ 321], | 30.00th=[ 351], 40.00th=[ 380], 50.00th=[ 405], 60.00th=[ 430], | 70.00th=[ 460], 80.00th=[ 506], 90.00th=[ 592], 95.00th=[ 684], | 99.00th=[ 877], 99.50th=[ 902], 99.90th=[ 1053], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 7, max= 112, per=25.18%, avg=45.58, stdev=20.96, samples=217 iops : min= 1, max= 28, avg=10.88, stdev= 5.29, samples=217 write: IOPS=11, BW=47.4KiB/s (48.5kB/s)(5192KiB/109614msec); 0 zone resets slat (usec): min=35, max=13345, avg=322.29, stdev=858.80 clat (msec): min=254, max=1866, avg=922.46, stdev=262.21 lat (msec): min=254, max=1866, avg=922.78, stdev=262.25 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 523], 10.00th=[ 600], 20.00th=[ 693], | 30.00th=[ 768], 40.00th=[ 835], 50.00th=[ 902], 60.00th=[ 969], | 70.00th=[ 1045], 80.00th=[ 1150], 90.00th=[ 1284], 95.00th=[ 1385], | 99.00th=[ 1552], 99.50th=[ 1670], 99.90th=[ 1770], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 7, max= 119, per=24.84%, avg=46.95, stdev=20.55, samples=216 iops : min= 1, max= 29, avg=11.24, stdev= 5.19, samples=216 lat (msec) : 50=0.08%, 100=0.27%, 250=2.11%, 500=38.59%, 750=20.94% lat (msec) : 1000=19.88%, 2000=18.12% cpu : usr=0.13%, sys=0.73%, ctx=4670, 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=145468: Wed Sep 30 10:12:14 2026 read: IOPS=11, BW=45.1KiB/s (46.1kB/s)(4976KiB/110447msec) slat (usec): min=2783, max=92205, avg=15664.29, stdev=9320.94 clat (msec): min=14, max=960, avg=428.43, stdev=138.23 lat (msec): min=25, max=976, avg=444.10, stdev=140.27 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 257], 10.00th=[ 292], 20.00th=[ 326], | 30.00th=[ 351], 40.00th=[ 376], 50.00th=[ 401], 60.00th=[ 439], | 70.00th=[ 472], 80.00th=[ 518], 90.00th=[ 600], 95.00th=[ 676], | 99.00th=[ 885], 99.50th=[ 919], 99.90th=[ 936], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 7, max= 104, per=25.09%, avg=45.42, stdev=21.33, samples=214 iops : min= 1, max= 26, avg=10.85, stdev= 5.39, samples=214 write: IOPS=11, BW=47.7KiB/s (48.8kB/s)(5264KiB/110447msec); 0 zone resets slat (usec): min=31, max=21806, avg=349.88, stdev=1164.49 clat (msec): min=74, max=1876, avg=921.33, stdev=261.06 lat (msec): min=74, max=1876, avg=921.68, stdev=261.10 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 542], 10.00th=[ 600], 20.00th=[ 693], | 30.00th=[ 768], 40.00th=[ 835], 50.00th=[ 911], 60.00th=[ 978], | 70.00th=[ 1053], 80.00th=[ 1133], 90.00th=[ 1267], 95.00th=[ 1368], | 99.00th=[ 1552], 99.50th=[ 1620], 99.90th=[ 1770], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 7, max= 96, per=25.02%, avg=47.29, stdev=19.86, samples=218 iops : min= 1, max= 24, avg=11.31, stdev= 5.00, samples=218 lat (msec) : 20=0.04%, 50=0.16%, 100=0.20%, 250=1.84%, 500=36.45% lat (msec) : 750=21.88%, 1000=20.31%, 2000=19.14% cpu : usr=0.13%, sys=0.76%, ctx=4703, 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=145469: Wed Sep 30 10:12:14 2026 read: IOPS=11, BW=45.2KiB/s (46.2kB/s)(4984KiB/110386msec) slat (usec): min=2199, max=96496, avg=15909.85, stdev=9315.14 clat (msec): min=29, max=934, avg=431.70, stdev=130.75 lat (msec): min=47, max=954, avg=447.62, stdev=132.88 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 264], 10.00th=[ 296], 20.00th=[ 330], | 30.00th=[ 359], 40.00th=[ 384], 50.00th=[ 409], 60.00th=[ 443], | 70.00th=[ 477], 80.00th=[ 518], 90.00th=[ 609], 95.00th=[ 693], | 99.00th=[ 835], 99.50th=[ 869], 99.90th=[ 919], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 7, max= 120, per=24.84%, avg=44.95, stdev=21.12, samples=217 iops : min= 1, max= 30, avg=10.73, stdev= 5.29, samples=217 write: IOPS=11, BW=47.6KiB/s (48.8kB/s)(5256KiB/110386msec); 0 zone resets slat (usec): min=28, max=12002, avg=332.22, stdev=873.97 clat (msec): min=178, max=1922, avg=917.61, stdev=273.65 lat (msec): min=178, max=1922, avg=917.94, stdev=273.67 clat percentiles (msec): | 1.00th=[ 321], 5.00th=[ 518], 10.00th=[ 584], 20.00th=[ 676], | 30.00th=[ 760], 40.00th=[ 827], 50.00th=[ 902], 60.00th=[ 969], | 70.00th=[ 1053], 80.00th=[ 1150], 90.00th=[ 1267], 95.00th=[ 1401], | 99.00th=[ 1653], 99.50th=[ 1720], 99.90th=[ 1888], 99.95th=[ 1921], | 99.99th=[ 1921] bw ( KiB/s): min= 7, max= 111, per=24.82%, avg=46.91, stdev=20.93, samples=219 iops : min= 1, max= 27, avg=11.22, stdev= 5.27, samples=219 lat (msec) : 50=0.08%, 100=0.27%, 250=1.91%, 500=37.58%, 750=22.34% lat (msec) : 1000=19.30%, 2000=18.52% cpu : usr=0.13%, sys=0.81%, ctx=4766, 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=145470: Wed Sep 30 10:12:14 2026 read: IOPS=11, BW=46.2KiB/s (47.3kB/s)(5060KiB/109611msec) slat (usec): min=34, max=90718, avg=15551.61, stdev=9214.66 clat (msec): min=23, max=1018, avg=428.75, stdev=134.85 lat (msec): min=43, max=1029, avg=444.32, stdev=137.15 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 257], 10.00th=[ 288], 20.00th=[ 330], | 30.00th=[ 355], 40.00th=[ 384], 50.00th=[ 409], 60.00th=[ 435], | 70.00th=[ 472], 80.00th=[ 518], 90.00th=[ 592], 95.00th=[ 676], | 99.00th=[ 902], 99.50th=[ 936], 99.90th=[ 1011], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 7, max= 128, per=25.21%, avg=45.62, stdev=21.60, samples=217 iops : min= 1, max= 32, avg=10.90, stdev= 5.44, samples=217 write: IOPS=11, BW=47.3KiB/s (48.4kB/s)(5180KiB/109611msec); 0 zone resets slat (usec): min=28, max=20616, avg=408.19, stdev=1421.45 clat (msec): min=53, max=1864, avg=919.28, stdev=264.35 lat (msec): min=53, max=1864, avg=919.69, stdev=264.40 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 523], 10.00th=[ 600], 20.00th=[ 684], | 30.00th=[ 776], 40.00th=[ 844], 50.00th=[ 911], 60.00th=[ 978], | 70.00th=[ 1045], 80.00th=[ 1116], 90.00th=[ 1284], 95.00th=[ 1401], | 99.00th=[ 1603], 99.50th=[ 1687], 99.90th=[ 1770], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 7, max= 104, per=24.79%, avg=46.86, stdev=19.09, samples=216 iops : min= 1, max= 26, avg=11.21, stdev= 4.83, samples=216 lat (msec) : 50=0.12%, 100=0.08%, 250=2.42%, 500=37.23%, 750=21.56% lat (msec) : 1000=20.55%, 2000=18.05% cpu : usr=0.11%, sys=0.74%, ctx=4188, 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=182KiB/s (186kB/s), 45.1KiB/s-46.2KiB/s (46.1kB/s-47.3kB/s), io=19.6MiB (20.5MB), run=109611-110447msec WRITE: bw=189KiB/s (194kB/s), 47.3KiB/s-47.7KiB/s (48.4kB/s-48.8kB/s), io=20.4MiB (21.4MB), run=109611-110447msec 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=145490: Wed Sep 30 10:12:26 2026 read: IOPS=2, BW=81.8MiB/s (85.8MB/s)(40.0MiB/489msec) slat (nsec): min=14587k, max=14587k, avg=14587006.00, stdev= 0.00 clat (nsec): min=450792k, max=450792k, avg=450791831.00, stdev= 0.00 lat (nsec): min=465384k, max=465384k, avg=465383634.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 451], 5.00th=[ 451], 10.00th=[ 451], 20.00th=[ 451], | 30.00th=[ 451], 40.00th=[ 451], 50.00th=[ 451], 60.00th=[ 451], | 70.00th=[ 451], 80.00th=[ 451], 90.00th=[ 451], 95.00th=[ 451], | 99.00th=[ 451], 99.50th=[ 451], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.46%, ctx=5, 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=81.8MiB/s (85.8MB/s), 81.8MiB/s-81.8MiB/s (85.8MB/s-85.8MB/s), io=40.0MiB (41.9MB), run=489-489msec 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