== sanity test 398c: run fio to test AIO ================= 01:34:01 (1788932041) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.371551 s, 113 MB/s osc.lustre-OST0000-osc-ffff8b0551690800.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=146563: Wed Sep 9 01:36:06 2026 write: IOPS=21, BW=86.7KiB/s (88.8kB/s)(10.0MiB/118115msec); 0 zone resets slat (usec): min=21, max=11903, avg=215.59, stdev=696.28 clat (msec): min=116, max=1342, avg=737.39, stdev=186.25 lat (msec): min=116, max=1342, avg=737.61, stdev=186.27 clat percentiles (msec): | 1.00th=[ 222], 5.00th=[ 397], 10.00th=[ 510], 20.00th=[ 609], | 30.00th=[ 667], 40.00th=[ 701], 50.00th=[ 743], 60.00th=[ 793], | 70.00th=[ 835], 80.00th=[ 885], 90.00th=[ 953], 95.00th=[ 1003], | 99.00th=[ 1200], 99.50th=[ 1267], 99.90th=[ 1318], 99.95th=[ 1334], | 99.99th=[ 1351] bw ( KiB/s): min= 8, max= 256, per=24.84%, avg=85.94, stdev=32.13, samples=235 iops : min= 2, max= 64, avg=21.10, stdev= 8.10, samples=235 lat (msec) : 250=1.80%, 500=7.46%, 750=41.84%, 1000=43.63%, 2000=5.27% cpu : usr=0.04%, sys=0.29%, ctx=2394, 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=146564: Wed Sep 9 01:36:06 2026 write: IOPS=21, BW=86.7KiB/s (88.8kB/s)(10.0MiB/118072msec); 0 zone resets slat (usec): min=20, max=13885, avg=196.93, stdev=694.12 clat (msec): min=123, max=1333, avg=737.19, stdev=187.03 lat (msec): min=123, max=1333, avg=737.39, stdev=187.06 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 405], 10.00th=[ 510], 20.00th=[ 609], | 30.00th=[ 667], 40.00th=[ 709], 50.00th=[ 751], 60.00th=[ 793], | 70.00th=[ 835], 80.00th=[ 885], 90.00th=[ 944], 95.00th=[ 1003], | 99.00th=[ 1183], 99.50th=[ 1234], 99.90th=[ 1318], 99.95th=[ 1334], | 99.99th=[ 1334] bw ( KiB/s): min= 23, max= 256, per=24.84%, avg=85.94, stdev=32.48, samples=235 iops : min= 5, max= 64, avg=21.09, stdev= 8.15, samples=235 lat (msec) : 250=2.07%, 500=7.38%, 750=40.20%, 1000=45.16%, 2000=5.20% cpu : usr=0.05%, sys=0.25%, ctx=2080, 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=146565: Wed Sep 9 01:36:06 2026 write: IOPS=21, BW=87.1KiB/s (89.2kB/s)(10.0MiB/117606msec); 0 zone resets slat (usec): min=28, max=12497, avg=197.14, stdev=586.91 clat (msec): min=63, max=1418, avg=734.50, stdev=194.52 lat (msec): min=64, max=1418, avg=734.70, stdev=194.51 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 363], 10.00th=[ 502], 20.00th=[ 600], | 30.00th=[ 667], 40.00th=[ 709], 50.00th=[ 751], 60.00th=[ 793], | 70.00th=[ 844], 80.00th=[ 885], 90.00th=[ 944], 95.00th=[ 1003], | 99.00th=[ 1200], 99.50th=[ 1267], 99.90th=[ 1334], 99.95th=[ 1368], | 99.99th=[ 1418] bw ( KiB/s): min= 15, max= 288, per=25.04%, avg=86.64, stdev=33.08, samples=233 iops : min= 3, max= 72, avg=21.27, stdev= 8.32, samples=233 lat (msec) : 100=0.23%, 250=2.73%, 500=6.95%, 750=39.77%, 1000=45.35% lat (msec) : 2000=4.96% cpu : usr=0.07%, sys=0.24%, ctx=2703, 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=146566: Wed Sep 9 01:36:06 2026 write: IOPS=21, BW=86.8KiB/s (88.9kB/s)(10.0MiB/117964msec); 0 zone resets slat (usec): min=22, max=13883, avg=195.75, stdev=670.92 clat (msec): min=101, max=1342, avg=736.36, stdev=191.02 lat (msec): min=101, max=1342, avg=736.56, stdev=191.05 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 359], 10.00th=[ 510], 20.00th=[ 609], | 30.00th=[ 659], 40.00th=[ 709], 50.00th=[ 751], 60.00th=[ 785], | 70.00th=[ 835], 80.00th=[ 885], 90.00th=[ 944], 95.00th=[ 1011], | 99.00th=[ 1200], 99.50th=[ 1267], 99.90th=[ 1318], 99.95th=[ 1318], | 99.99th=[ 1351] bw ( KiB/s): min= 23, max= 256, per=24.95%, avg=86.32, stdev=34.08, samples=234 iops : min= 5, max= 64, avg=21.19, stdev= 8.58, samples=234 lat (msec) : 250=2.50%, 500=7.07%, 750=40.35%, 1000=43.98%, 2000=6.09% cpu : usr=0.05%, sys=0.25%, ctx=2245, 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=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=347KiB/s (355kB/s), 86.7KiB/s-87.1KiB/s (88.8kB/s-89.2kB/s), io=40.0MiB (41.9MB), run=117606-118115msec 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=146592: Wed Sep 9 01:37:36 2026 read: IOPS=15, BW=60.5KiB/s (61.9kB/s)(5048KiB/83441msec) slat (usec): min=35, max=511200, avg=11203.09, stdev=18008.07 clat (msec): min=21, max=1184, avg=325.66, stdev=93.04 lat (msec): min=27, max=1199, avg=336.86, stdev=96.21 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 194], 10.00th=[ 222], 20.00th=[ 257], | 30.00th=[ 279], 40.00th=[ 300], 50.00th=[ 321], 60.00th=[ 338], | 70.00th=[ 363], 80.00th=[ 393], 90.00th=[ 435], 95.00th=[ 472], | 99.00th=[ 558], 99.50th=[ 600], 99.90th=[ 1183], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 7, max= 160, per=25.22%, avg=60.52, stdev=26.15, samples=164 iops : min= 1, max= 40, avg=14.67, stdev= 6.53, samples=164 write: IOPS=15, BW=62.2KiB/s (63.7kB/s)(5192KiB/83441msec); 0 zone resets slat (usec): min=32, max=14063, avg=243.69, stdev=783.37 clat (msec): min=87, max=1794, avg=700.20, stdev=201.31 lat (msec): min=87, max=1794, avg=700.44, stdev=201.32 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 409], 10.00th=[ 472], 20.00th=[ 558], | 30.00th=[ 600], 40.00th=[ 642], 50.00th=[ 676], 60.00th=[ 718], | 70.00th=[ 768], 80.00th=[ 844], 90.00th=[ 944], 95.00th=[ 1045], | 99.00th=[ 1318], 99.50th=[ 1536], 99.90th=[ 1770], 99.95th=[ 1787], | 99.99th=[ 1787] bw ( KiB/s): min= 7, max= 119, per=24.66%, avg=61.64, stdev=22.33, samples=165 iops : min= 1, max= 29, avg=14.95, stdev= 5.69, samples=165 lat (msec) : 50=0.23%, 100=0.23%, 250=8.55%, 500=45.55%, 750=28.09% lat (msec) : 1000=13.75%, 2000=3.59% cpu : usr=0.09%, sys=0.65%, ctx=4711, 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=146593: Wed Sep 9 01:37:36 2026 read: IOPS=14, BW=59.6KiB/s (61.0kB/s)(4976KiB/83527msec) slat (msec): min=2, max=320, avg=10.96, stdev=10.63 clat (msec): min=14, max=612, avg=324.24, stdev=83.81 lat (msec): min=19, max=623, avg=335.21, stdev=84.76 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 194], 10.00th=[ 222], 20.00th=[ 255], | 30.00th=[ 279], 40.00th=[ 296], 50.00th=[ 317], 60.00th=[ 342], | 70.00th=[ 368], 80.00th=[ 397], 90.00th=[ 435], 95.00th=[ 468], | 99.00th=[ 527], 99.50th=[ 550], 99.90th=[ 592], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 7, max= 135, per=24.53%, avg=58.87, stdev=26.52, samples=166 iops : min= 1, max= 33, avg=14.25, stdev= 6.70, samples=166 write: IOPS=15, BW=63.0KiB/s (64.5kB/s)(5264KiB/83527msec); 0 zone resets slat (usec): min=35, max=11755, avg=232.90, stdev=612.13 clat (msec): min=201, max=1353, avg=696.99, stdev=179.54 lat (msec): min=202, max=1353, avg=697.22, stdev=179.51 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 401], 10.00th=[ 468], 20.00th=[ 558], | 30.00th=[ 609], 40.00th=[ 651], 50.00th=[ 693], 60.00th=[ 735], | 70.00th=[ 785], 80.00th=[ 844], 90.00th=[ 936], 95.00th=[ 1003], | 99.00th=[ 1150], 99.50th=[ 1183], 99.90th=[ 1301], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 15, max= 143, per=24.93%, avg=62.33, stdev=23.86, samples=166 iops : min= 3, max= 35, avg=15.12, stdev= 5.99, samples=166 lat (msec) : 20=0.04%, 100=0.23%, 250=9.06%, 500=44.65%, 750=26.91% lat (msec) : 1000=16.41%, 2000=2.70% cpu : usr=0.08%, sys=0.68%, ctx=4940, majf=0, minf=15 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=146594: Wed Sep 9 01:37:36 2026 read: IOPS=14, BW=59.7KiB/s (61.1kB/s)(4984KiB/83524msec) slat (usec): min=1946, max=283268, avg=11270.68, stdev=11176.77 clat (msec): min=18, max=752, avg=326.22, stdev=90.49 lat (msec): min=29, max=764, avg=337.50, stdev=91.51 clat percentiles (msec): | 1.00th=[ 65], 5.00th=[ 197], 10.00th=[ 222], 20.00th=[ 253], | 30.00th=[ 279], 40.00th=[ 305], 50.00th=[ 326], 60.00th=[ 342], | 70.00th=[ 368], 80.00th=[ 397], 90.00th=[ 439], 95.00th=[ 472], | 99.00th=[ 558], 99.50th=[ 617], 99.90th=[ 743], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 7, max= 144, per=24.82%, avg=59.56, stdev=25.46, samples=165 iops : min= 1, max= 36, avg=14.42, stdev= 6.37, samples=165 write: IOPS=15, BW=62.9KiB/s (64.4kB/s)(5256KiB/83524msec); 0 zone resets slat (usec): min=32, max=16869, avg=249.55, stdev=777.02 clat (msec): min=178, max=1322, avg=695.32, stdev=180.91 lat (msec): min=178, max=1322, avg=695.57, stdev=180.93 clat percentiles (msec): | 1.00th=[ 284], 5.00th=[ 414], 10.00th=[ 472], 20.00th=[ 550], | 30.00th=[ 600], 40.00th=[ 651], 50.00th=[ 684], 60.00th=[ 726], | 70.00th=[ 776], 80.00th=[ 852], 90.00th=[ 936], 95.00th=[ 1020], | 99.00th=[ 1167], 99.50th=[ 1217], 99.90th=[ 1301], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 23, max= 135, per=24.94%, avg=62.34, stdev=21.72, samples=165 iops : min= 5, max= 33, avg=15.12, stdev= 5.48, samples=165 lat (msec) : 20=0.04%, 50=0.31%, 100=0.27%, 250=8.63%, 500=44.69% lat (msec) : 750=28.24%, 1000=14.61%, 2000=3.20% cpu : usr=0.10%, sys=0.64%, ctx=4791, 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=146595: Wed Sep 9 01:37:36 2026 read: IOPS=15, BW=60.8KiB/s (62.3kB/s)(5060KiB/83187msec) slat (usec): min=2536, max=55088, avg=10808.61, stdev=5789.31 clat (msec): min=29, max=630, avg=325.04, stdev=82.42 lat (msec): min=38, max=648, avg=335.86, stdev=83.58 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 207], 10.00th=[ 230], 20.00th=[ 257], | 30.00th=[ 279], 40.00th=[ 300], 50.00th=[ 321], 60.00th=[ 338], | 70.00th=[ 363], 80.00th=[ 388], 90.00th=[ 435], 95.00th=[ 477], | 99.00th=[ 558], 99.50th=[ 567], 99.90th=[ 625], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 15, max= 127, per=25.35%, avg=60.83, stdev=22.38, samples=164 iops : min= 3, max= 31, avg=14.74, stdev= 5.62, samples=164 write: IOPS=15, BW=62.3KiB/s (63.8kB/s)(5180KiB/83187msec); 0 zone resets slat (usec): min=32, max=6842, avg=209.05, stdev=489.49 clat (msec): min=110, max=1346, avg=697.92, stdev=178.18 lat (msec): min=115, max=1347, avg=698.14, stdev=178.14 clat percentiles (msec): | 1.00th=[ 313], 5.00th=[ 422], 10.00th=[ 472], 20.00th=[ 550], | 30.00th=[ 600], 40.00th=[ 642], 50.00th=[ 684], 60.00th=[ 735], | 70.00th=[ 785], 80.00th=[ 844], 90.00th=[ 927], 95.00th=[ 1011], | 99.00th=[ 1167], 99.50th=[ 1183], 99.90th=[ 1318], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 7, max= 135, per=24.59%, avg=61.47, stdev=22.82, samples=165 iops : min= 1, max= 33, avg=14.90, stdev= 5.78, samples=165 lat (msec) : 50=0.16%, 100=0.12%, 250=8.48%, 500=45.90%, 750=27.15% lat (msec) : 1000=15.39%, 2000=2.81% cpu : usr=0.10%, sys=0.64%, ctx=4968, 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=240KiB/s (246kB/s), 59.6KiB/s-60.8KiB/s (61.0kB/s-62.3kB/s), io=19.6MiB (20.5MB), run=83187-83527msec WRITE: bw=250KiB/s (256kB/s), 62.2KiB/s-63.0KiB/s (63.7kB/s-64.5kB/s), io=20.4MiB (21.4MB), run=83187-83527msec 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=146611: Wed Sep 9 01:37:42 2026 read: IOPS=2, BW=92.6MiB/s (97.1MB/s)(40.0MiB/432msec) slat (nsec): min=18623k, max=18623k, avg=18622730.00, stdev= 0.00 clat (nsec): min=383664k, max=383664k, avg=383663872.00, stdev= 0.00 lat (nsec): min=402290k, max=402290k, avg=402290227.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 384], 10.00th=[ 384], 20.00th=[ 384], | 30.00th=[ 384], 40.00th=[ 384], 50.00th=[ 384], 60.00th=[ 384], | 70.00th=[ 384], 80.00th=[ 384], 90.00th=[ 384], 95.00th=[ 384], | 99.00th=[ 384], 99.50th=[ 384], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.78%, ctx=42, 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=92.6MiB/s (97.1MB/s), 92.6MiB/s-92.6MiB/s (97.1MB/s-97.1MB/s), io=40.0MiB (41.9MB), run=432-432msec 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