== sanity test 398c: run fio to test AIO ================= 01:20:31 (1780809631) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.121362 s, 346 MB/s osc.lustre-OST0000-osc-ffff90dc161cd800.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=155353: Sun Jun 7 01:21:00 2026 write: IOPS=96, BW=388KiB/s (397kB/s)(10.0MiB/26422msec); 0 zone resets slat (usec): min=34, max=684, avg=195.42, stdev=92.55 clat (msec): min=66, max=303, avg=164.77, stdev=31.52 lat (msec): min=66, max=304, avg=164.96, stdev=31.53 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 115], 10.00th=[ 130], 20.00th=[ 144], | 30.00th=[ 153], 40.00th=[ 159], 50.00th=[ 165], 60.00th=[ 171], | 70.00th=[ 180], 80.00th=[ 190], 90.00th=[ 203], 95.00th=[ 213], | 99.00th=[ 239], 99.50th=[ 275], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 305] bw ( KiB/s): min= 280, max= 618, per=24.88%, avg=385.58, stdev=52.65, samples=52 iops : min= 70, max= 154, avg=96.38, stdev=13.12, samples=52 lat (msec) : 100=3.32%, 250=95.94%, 500=0.74% cpu : usr=0.15%, sys=1.52%, ctx=2784, 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=155354: Sun Jun 7 01:21:00 2026 write: IOPS=96, BW=388KiB/s (397kB/s)(10.0MiB/26413msec); 0 zone resets slat (usec): min=35, max=798, avg=197.16, stdev=93.85 clat (msec): min=36, max=285, avg=164.72, stdev=32.46 lat (msec): min=36, max=285, avg=164.92, stdev=32.47 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 115], 10.00th=[ 130], 20.00th=[ 142], | 30.00th=[ 150], 40.00th=[ 159], 50.00th=[ 165], 60.00th=[ 171], | 70.00th=[ 180], 80.00th=[ 190], 90.00th=[ 203], 95.00th=[ 218], | 99.00th=[ 247], 99.50th=[ 268], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 256, max= 663, per=24.97%, avg=387.06, stdev=59.90, samples=52 iops : min= 64, max= 165, avg=96.75, stdev=14.91, samples=52 lat (msec) : 50=0.62%, 100=2.70%, 250=95.74%, 500=0.94% cpu : usr=0.12%, sys=1.57%, ctx=2776, 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=155355: Sun Jun 7 01:21:00 2026 write: IOPS=97, BW=388KiB/s (398kB/s)(10.0MiB/26362msec); 0 zone resets slat (usec): min=35, max=1476, avg=185.29, stdev=103.68 clat (msec): min=27, max=303, avg=164.47, stdev=33.04 lat (msec): min=27, max=304, avg=164.66, stdev=33.06 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 114], 10.00th=[ 130], 20.00th=[ 142], | 30.00th=[ 150], 40.00th=[ 159], 50.00th=[ 165], 60.00th=[ 171], | 70.00th=[ 180], 80.00th=[ 190], 90.00th=[ 205], 95.00th=[ 215], | 99.00th=[ 243], 99.50th=[ 279], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 305] bw ( KiB/s): min= 264, max= 721, per=24.95%, avg=386.79, stdev=66.09, samples=52 iops : min= 66, max= 180, avg=96.69, stdev=16.50, samples=52 lat (msec) : 50=0.62%, 100=3.20%, 250=95.39%, 500=0.78% cpu : usr=0.17%, sys=1.40%, ctx=2712, 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=155356: Sun Jun 7 01:21:00 2026 write: IOPS=96, BW=388KiB/s (397kB/s)(10.0MiB/26413msec); 0 zone resets slat (usec): min=47, max=700, avg=199.40, stdev=91.00 clat (msec): min=40, max=290, avg=164.70, stdev=31.69 lat (msec): min=40, max=290, avg=164.90, stdev=31.69 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 117], 10.00th=[ 130], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 159], 50.00th=[ 165], 60.00th=[ 171], | 70.00th=[ 180], 80.00th=[ 190], 90.00th=[ 203], 95.00th=[ 215], | 99.00th=[ 243], 99.50th=[ 257], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 280, max= 650, per=24.92%, avg=386.19, stdev=56.11, samples=52 iops : min= 70, max= 162, avg=96.54, stdev=13.98, samples=52 lat (msec) : 50=0.20%, 100=3.28%, 250=95.78%, 500=0.74% cpu : usr=0.14%, sys=1.56%, ctx=2728, 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=1550KiB/s (1587kB/s), 388KiB/s-388KiB/s (397kB/s-398kB/s), io=40.0MiB (41.9MB), run=26362-26422msec 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=155370: Sun Jun 7 01:21:22 2026 read: IOPS=67, BW=271KiB/s (277kB/s)(5048KiB/18648msec) slat (usec): min=980, max=21451, avg=2300.30, stdev=929.81 clat (msec): min=3, max=177, avg=73.56, stdev=15.62 lat (msec): min=6, max=180, avg=75.86, stdev=15.73 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 54], 10.00th=[ 58], 20.00th=[ 62], | 30.00th=[ 66], 40.00th=[ 69], 50.00th=[ 73], 60.00th=[ 77], | 70.00th=[ 80], 80.00th=[ 85], 90.00th=[ 91], 95.00th=[ 97], | 99.00th=[ 126], 99.50th=[ 132], 99.90th=[ 165], 99.95th=[ 178], | 99.99th=[ 178] bw ( KiB/s): min= 160, max= 368, per=25.17%, avg=270.78, stdev=49.28, samples=36 iops : min= 40, max= 92, avg=67.67, stdev=12.30, samples=36 write: IOPS=69, BW=278KiB/s (285kB/s)(5192KiB/18648msec); 0 zone resets slat (usec): min=44, max=663, avg=177.16, stdev=89.78 clat (msec): min=53, max=323, avg=155.34, stdev=35.47 lat (msec): min=53, max=323, avg=155.52, stdev=35.48 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 102], 10.00th=[ 114], 20.00th=[ 126], | 30.00th=[ 136], 40.00th=[ 144], 50.00th=[ 155], 60.00th=[ 163], | 70.00th=[ 174], 80.00th=[ 184], 90.00th=[ 199], 95.00th=[ 211], | 99.00th=[ 268], 99.50th=[ 284], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 192, max= 352, per=24.85%, avg=278.36, stdev=40.22, samples=36 iops : min= 48, max= 88, avg=69.56, stdev=10.04, samples=36 lat (msec) : 4=0.04%, 10=0.08%, 20=0.12%, 50=1.29%, 100=48.28% lat (msec) : 250=49.41%, 500=0.78% cpu : usr=0.18%, sys=2.29%, ctx=4970, 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=155371: Sun Jun 7 01:21:22 2026 read: IOPS=66, BW=267KiB/s (273kB/s)(4976KiB/18648msec) slat (usec): min=989, max=21405, avg=2341.25, stdev=955.29 clat (msec): min=3, max=176, avg=73.40, stdev=15.66 lat (msec): min=5, max=178, avg=75.74, stdev=15.78 clat percentiles (msec): | 1.00th=[ 31], 5.00th=[ 53], 10.00th=[ 58], 20.00th=[ 63], | 30.00th=[ 67], 40.00th=[ 70], 50.00th=[ 73], 60.00th=[ 77], | 70.00th=[ 81], 80.00th=[ 84], 90.00th=[ 90], 95.00th=[ 96], | 99.00th=[ 123], 99.50th=[ 130], 99.90th=[ 174], 99.95th=[ 178], | 99.99th=[ 178] bw ( KiB/s): min= 176, max= 376, per=24.84%, avg=267.31, stdev=50.53, samples=36 iops : min= 44, max= 94, avg=66.81, stdev=12.60, samples=36 write: IOPS=70, BW=282KiB/s (289kB/s)(5264KiB/18648msec); 0 zone resets slat (usec): min=55, max=606, avg=171.71, stdev=80.96 clat (msec): min=50, max=326, avg=154.51, stdev=37.14 lat (msec): min=50, max=326, avg=154.68, stdev=37.15 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 96], 10.00th=[ 111], 20.00th=[ 125], | 30.00th=[ 136], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 163], | 70.00th=[ 174], 80.00th=[ 184], 90.00th=[ 197], 95.00th=[ 209], | 99.00th=[ 271], 99.50th=[ 300], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 184, max= 384, per=25.17%, avg=281.89, stdev=39.34, samples=36 iops : min= 46, max= 96, avg=70.44, stdev= 9.83, samples=36 lat (msec) : 4=0.12%, 10=0.08%, 20=0.16%, 50=1.25%, 100=48.95% lat (msec) : 250=48.55%, 500=0.90% cpu : usr=0.17%, sys=2.33%, ctx=4884, 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=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=155372: Sun Jun 7 01:21:22 2026 read: IOPS=66, BW=268KiB/s (274kB/s)(4984KiB/18615msec) slat (usec): min=33, max=6454, avg=2316.25, stdev=762.66 clat (usec): min=1924, max=197240, avg=72230.38, stdev=16233.10 lat (msec): min=4, max=199, avg=74.55, stdev=16.41 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 52], 10.00th=[ 57], 20.00th=[ 62], | 30.00th=[ 65], 40.00th=[ 69], 50.00th=[ 73], 60.00th=[ 77], | 70.00th=[ 80], 80.00th=[ 84], 90.00th=[ 89], 95.00th=[ 95], | 99.00th=[ 123], 99.50th=[ 128], 99.90th=[ 159], 99.95th=[ 199], | 99.99th=[ 199] bw ( KiB/s): min= 152, max= 376, per=25.05%, avg=269.56, stdev=56.43, samples=36 iops : min= 38, max= 94, avg=67.36, stdev=14.06, samples=36 write: IOPS=70, BW=282KiB/s (289kB/s)(5256KiB/18615msec); 0 zone resets slat (usec): min=35, max=1570, avg=177.12, stdev=93.78 clat (msec): min=30, max=325, avg=155.58, stdev=38.05 lat (msec): min=30, max=326, avg=155.76, stdev=38.06 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 96], 10.00th=[ 112], 20.00th=[ 127], | 30.00th=[ 136], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 165], | 70.00th=[ 174], 80.00th=[ 184], 90.00th=[ 199], 95.00th=[ 213], | 99.00th=[ 266], 99.50th=[ 305], 99.90th=[ 321], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 192, max= 336, per=25.11%, avg=281.28, stdev=36.05, samples=36 iops : min= 48, max= 84, avg=70.28, stdev= 8.97, samples=36 lat (msec) : 2=0.04%, 4=0.08%, 10=0.23%, 20=0.39%, 50=1.64% lat (msec) : 100=48.09%, 250=48.79%, 500=0.74% cpu : usr=0.22%, sys=2.27%, ctx=4937, 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=155373: Sun Jun 7 01:21:22 2026 read: IOPS=67, BW=271KiB/s (278kB/s)(5060KiB/18648msec) slat (usec): min=959, max=8410, avg=2294.21, stdev=793.93 clat (msec): min=3, max=176, avg=73.37, stdev=15.53 lat (msec): min=6, max=178, avg=75.67, stdev=15.66 clat percentiles (msec): | 1.00th=[ 34], 5.00th=[ 54], 10.00th=[ 58], 20.00th=[ 63], | 30.00th=[ 66], 40.00th=[ 70], 50.00th=[ 73], 60.00th=[ 77], | 70.00th=[ 80], 80.00th=[ 85], 90.00th=[ 90], 95.00th=[ 96], | 99.00th=[ 121], 99.50th=[ 126], 99.90th=[ 174], 99.95th=[ 176], | 99.99th=[ 176] bw ( KiB/s): min= 144, max= 384, per=25.36%, avg=272.86, stdev=53.90, samples=36 iops : min= 36, max= 96, avg=68.19, stdev=13.47, samples=36 write: IOPS=69, BW=278KiB/s (284kB/s)(5180KiB/18648msec); 0 zone resets slat (usec): min=40, max=3731, avg=179.87, stdev=140.18 clat (msec): min=31, max=314, avg=155.91, stdev=37.82 lat (msec): min=31, max=315, avg=156.09, stdev=37.83 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 97], 10.00th=[ 112], 20.00th=[ 126], | 30.00th=[ 138], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 165], | 70.00th=[ 174], 80.00th=[ 186], 90.00th=[ 201], 95.00th=[ 215], | 99.00th=[ 284], 99.50th=[ 284], 99.90th=[ 313], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 192, max= 352, per=24.73%, avg=276.94, stdev=35.81, samples=36 iops : min= 48, max= 88, avg=69.19, stdev= 8.94, samples=36 lat (msec) : 4=0.04%, 10=0.04%, 20=0.35%, 50=1.41%, 100=49.41% lat (msec) : 250=47.77%, 500=0.98% cpu : usr=0.20%, sys=2.29%, ctx=4936, 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=1076KiB/s (1102kB/s), 267KiB/s-271KiB/s (273kB/s-278kB/s), io=19.6MiB (20.5MB), run=18615-18648msec WRITE: bw=1120KiB/s (1147kB/s), 278KiB/s-282KiB/s (284kB/s-289kB/s), io=20.4MiB (21.4MB), run=18615-18648msec 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=155379: Sun Jun 7 01:21:25 2026 read: IOPS=8, BW=331MiB/s (347MB/s)(40.0MiB/121msec) slat (nsec): min=9824.1k, max=9824.1k, avg=9824140.00, stdev= 0.00 clat (nsec): min=105522k, max=105522k, avg=105522072.00, stdev= 0.00 lat (nsec): min=115352k, max=115352k, avg=115352067.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 106], 10.00th=[ 106], 20.00th=[ 106], | 30.00th=[ 106], 40.00th=[ 106], 50.00th=[ 106], 60.00th=[ 106], | 70.00th=[ 106], 80.00th=[ 106], 90.00th=[ 106], 95.00th=[ 106], | 99.00th=[ 106], 99.50th=[ 106], 99.90th=[ 106], 99.95th=[ 106], | 99.99th=[ 106] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=6.67%, ctx=40, majf=0, minf=10 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=331MiB/s (347MB/s), 331MiB/s-331MiB/s (347MB/s-347MB/s), io=40.0MiB (41.9MB), run=121-121msec 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