== sanity test 398c: run fio to test AIO ================= 12:18:37 (1787501917) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.577659 s, 72.6 MB/s osc.lustre-OST0000-osc-ffff9e6d53302800.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=180231: Sun Aug 23 12:19:17 2026 write: IOPS=84, BW=338KiB/s (346kB/s)(10.0MiB/30294msec); 0 zone resets slat (usec): min=29, max=16863, avg=213.10, stdev=805.09 clat (msec): min=60, max=367, avg=188.43, stdev=58.03 lat (msec): min=61, max=367, avg=188.64, stdev=58.05 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 105], 10.00th=[ 117], 20.00th=[ 142], | 30.00th=[ 157], 40.00th=[ 167], 50.00th=[ 182], 60.00th=[ 194], | 70.00th=[ 213], 80.00th=[ 236], 90.00th=[ 271], 95.00th=[ 296], | 99.00th=[ 351], 99.50th=[ 355], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 167, max= 531, per=25.11%, avg=338.93, stdev=91.91, samples=59 iops : min= 41, max= 132, avg=84.29, stdev=23.02, samples=59 lat (msec) : 100=4.26%, 250=80.78%, 500=14.96% cpu : usr=0.15%, sys=0.82%, ctx=2077, 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=180232: Sun Aug 23 12:19:17 2026 write: IOPS=84, BW=339KiB/s (347kB/s)(10.0MiB/30232msec); 0 zone resets slat (usec): min=24, max=20747, avg=277.70, stdev=1060.28 clat (msec): min=18, max=508, avg=188.14, stdev=60.59 lat (msec): min=18, max=508, avg=188.42, stdev=60.59 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 103], 10.00th=[ 115], 20.00th=[ 136], | 30.00th=[ 155], 40.00th=[ 169], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 215], 80.00th=[ 232], 90.00th=[ 275], 95.00th=[ 300], | 99.00th=[ 351], 99.50th=[ 363], 99.90th=[ 430], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 167, max= 562, per=25.14%, avg=339.42, stdev=92.04, samples=59 iops : min= 41, max= 140, avg=84.42, stdev=23.07, samples=59 lat (msec) : 20=0.04%, 50=0.16%, 100=3.67%, 250=81.05%, 500=15.00% lat (msec) : 750=0.08% cpu : usr=0.17%, sys=0.97%, ctx=2583, 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=180233: Sun Aug 23 12:19:17 2026 write: IOPS=84, BW=338KiB/s (346kB/s)(10.0MiB/30322msec); 0 zone resets slat (usec): min=30, max=27351, avg=243.69, stdev=1054.26 clat (msec): min=32, max=403, avg=188.69, stdev=58.82 lat (msec): min=32, max=403, avg=188.94, stdev=58.82 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 103], 10.00th=[ 115], 20.00th=[ 138], | 30.00th=[ 157], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 215], 80.00th=[ 232], 90.00th=[ 268], 95.00th=[ 305], | 99.00th=[ 347], 99.50th=[ 351], 99.90th=[ 380], 99.95th=[ 384], | 99.99th=[ 405] bw ( KiB/s): min= 143, max= 562, per=24.87%, avg=335.68, stdev=95.40, samples=60 iops : min= 35, max= 140, avg=83.47, stdev=23.91, samples=60 lat (msec) : 50=0.23%, 100=3.83%, 250=81.72%, 500=14.22% cpu : usr=0.18%, sys=1.00%, ctx=2509, 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=180234: Sun Aug 23 12:19:17 2026 write: IOPS=84, BW=339KiB/s (347kB/s)(10.0MiB/30177msec); 0 zone resets slat (usec): min=29, max=34938, avg=268.58, stdev=1201.45 clat (msec): min=13, max=527, avg=188.12, stdev=60.78 lat (msec): min=14, max=527, avg=188.39, stdev=60.77 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 106], 10.00th=[ 116], 20.00th=[ 133], | 30.00th=[ 155], 40.00th=[ 167], 50.00th=[ 182], 60.00th=[ 194], | 70.00th=[ 213], 80.00th=[ 232], 90.00th=[ 275], 95.00th=[ 305], | 99.00th=[ 359], 99.50th=[ 376], 99.90th=[ 451], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 175, max= 550, per=25.14%, avg=339.37, stdev=88.58, samples=59 iops : min= 43, max= 137, avg=84.39, stdev=22.20, samples=59 lat (msec) : 20=0.04%, 50=0.12%, 100=3.95%, 250=81.21%, 500=14.61% lat (msec) : 750=0.08% cpu : usr=0.25%, sys=1.12%, ctx=2730, 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=1351KiB/s (1383kB/s), 338KiB/s-339KiB/s (346kB/s-347kB/s), io=40.0MiB (41.9MB), run=30177-30322msec 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=180249: Sun Aug 23 12:20:00 2026 read: IOPS=36, BW=144KiB/s (148kB/s)(5048KiB/35023msec) slat (usec): min=2324, max=95983, avg=15741.69, stdev=8486.60 clat (msec): min=47, max=391, avg=205.11, stdev=49.91 lat (msec): min=60, max=438, avg=220.85, stdev=52.08 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 136], 10.00th=[ 146], 20.00th=[ 161], | 30.00th=[ 176], 40.00th=[ 188], 50.00th=[ 203], 60.00th=[ 213], | 70.00th=[ 228], 80.00th=[ 247], 90.00th=[ 271], 95.00th=[ 292], | 99.00th=[ 342], 99.50th=[ 359], 99.90th=[ 388], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 68, max= 227, per=25.06%, avg=143.33, stdev=34.91, samples=69 iops : min= 17, max= 56, avg=35.36, stdev= 8.74, samples=69 write: IOPS=37, BW=148KiB/s (152kB/s)(5192KiB/35023msec); 0 zone resets slat (usec): min=30, max=10109, avg=261.92, stdev=664.06 clat (msec): min=111, max=398, avg=214.22, stdev=48.36 lat (msec): min=113, max=398, avg=214.49, stdev=48.36 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 148], 10.00th=[ 161], 20.00th=[ 176], | 30.00th=[ 186], 40.00th=[ 194], 50.00th=[ 207], 60.00th=[ 218], | 70.00th=[ 234], 80.00th=[ 251], 90.00th=[ 284], 95.00th=[ 309], | 99.00th=[ 355], 99.50th=[ 363], 99.90th=[ 397], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 54, max= 216, per=24.82%, avg=147.90, stdev=37.33, samples=69 iops : min= 13, max= 54, avg=36.49, stdev= 9.34, samples=69 lat (msec) : 50=0.04%, 100=0.27%, 250=80.00%, 500=19.69% cpu : usr=0.25%, sys=1.60%, ctx=4152, 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=180250: Sun Aug 23 12:20:00 2026 read: IOPS=35, BW=143KiB/s (146kB/s)(4976KiB/34906msec) slat (usec): min=3528, max=69468, avg=15318.31, stdev=8462.23 clat (msec): min=22, max=460, avg=207.20, stdev=52.01 lat (msec): min=36, max=488, avg=222.53, stdev=54.06 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 138], 10.00th=[ 150], 20.00th=[ 163], | 30.00th=[ 176], 40.00th=[ 188], 50.00th=[ 201], 60.00th=[ 213], | 70.00th=[ 228], 80.00th=[ 249], 90.00th=[ 275], 95.00th=[ 300], | 99.00th=[ 355], 99.50th=[ 414], 99.90th=[ 451], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 68, max= 255, per=24.80%, avg=141.84, stdev=36.92, samples=69 iops : min= 17, max= 63, avg=35.00, stdev= 9.26, samples=69 write: IOPS=37, BW=151KiB/s (154kB/s)(5264KiB/34906msec); 0 zone resets slat (usec): min=32, max=25498, avg=289.31, stdev=1072.42 clat (msec): min=108, max=454, avg=212.46, stdev=49.15 lat (msec): min=108, max=455, avg=212.75, stdev=49.19 clat percentiles (msec): | 1.00th=[ 131], 5.00th=[ 144], 10.00th=[ 157], 20.00th=[ 174], | 30.00th=[ 182], 40.00th=[ 194], 50.00th=[ 207], 60.00th=[ 218], | 70.00th=[ 232], 80.00th=[ 253], 90.00th=[ 279], 95.00th=[ 300], | 99.00th=[ 359], 99.50th=[ 401], 99.90th=[ 451], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 80, max= 223, per=25.23%, avg=150.35, stdev=35.43, samples=69 iops : min= 20, max= 55, avg=37.10, stdev= 8.89, samples=69 lat (msec) : 50=0.04%, 100=0.16%, 250=79.38%, 500=20.43% cpu : usr=0.25%, sys=1.70%, ctx=4105, 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=180251: Sun Aug 23 12:20:00 2026 read: IOPS=35, BW=143KiB/s (146kB/s)(4984KiB/34969msec) slat (usec): min=39, max=71222, avg=15566.48, stdev=8417.89 clat (msec): min=11, max=441, avg=206.95, stdev=51.84 lat (msec): min=21, max=452, avg=222.52, stdev=54.42 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 134], 10.00th=[ 146], 20.00th=[ 163], | 30.00th=[ 178], 40.00th=[ 188], 50.00th=[ 203], 60.00th=[ 215], | 70.00th=[ 228], 80.00th=[ 247], 90.00th=[ 275], 95.00th=[ 296], | 99.00th=[ 363], 99.50th=[ 372], 99.90th=[ 409], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 87, max= 223, per=24.90%, avg=142.45, stdev=35.03, samples=69 iops : min= 21, max= 55, avg=35.14, stdev= 8.81, samples=69 write: IOPS=37, BW=150KiB/s (154kB/s)(5256KiB/34969msec); 0 zone resets slat (usec): min=30, max=12771, avg=259.69, stdev=867.28 clat (msec): min=42, max=441, avg=213.97, stdev=49.52 lat (msec): min=43, max=441, avg=214.23, stdev=49.55 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 146], 10.00th=[ 157], 20.00th=[ 171], | 30.00th=[ 184], 40.00th=[ 197], 50.00th=[ 207], 60.00th=[ 220], | 70.00th=[ 236], 80.00th=[ 255], 90.00th=[ 279], 95.00th=[ 305], | 99.00th=[ 342], 99.50th=[ 372], 99.90th=[ 418], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 63, max= 239, per=25.07%, avg=149.42, stdev=37.23, samples=69 iops : min= 15, max= 59, avg=36.88, stdev= 9.33, samples=69 lat (msec) : 20=0.04%, 50=0.08%, 100=0.35%, 250=79.02%, 500=20.51% cpu : usr=0.23%, sys=1.72%, ctx=4066, majf=0, minf=17 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=180252: Sun Aug 23 12:20:00 2026 read: IOPS=36, BW=145KiB/s (148kB/s)(5060KiB/34968msec) slat (usec): min=2559, max=60830, avg=15749.87, stdev=8579.41 clat (msec): min=72, max=377, avg=205.76, stdev=48.91 lat (msec): min=77, max=437, avg=221.52, stdev=51.19 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 142], 10.00th=[ 150], 20.00th=[ 165], | 30.00th=[ 178], 40.00th=[ 188], 50.00th=[ 199], 60.00th=[ 211], | 70.00th=[ 226], 80.00th=[ 243], 90.00th=[ 275], 95.00th=[ 305], | 99.00th=[ 347], 99.50th=[ 359], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 61, max= 208, per=25.24%, avg=144.38, stdev=35.88, samples=69 iops : min= 15, max= 52, avg=35.64, stdev= 9.03, samples=69 write: IOPS=37, BW=148KiB/s (152kB/s)(5180KiB/34968msec); 0 zone resets slat (usec): min=29, max=12008, avg=303.75, stdev=920.54 clat (msec): min=100, max=452, avg=213.44, stdev=49.76 lat (msec): min=100, max=452, avg=213.75, stdev=49.72 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 142], 10.00th=[ 159], 20.00th=[ 171], | 30.00th=[ 184], 40.00th=[ 194], 50.00th=[ 205], 60.00th=[ 218], | 70.00th=[ 236], 80.00th=[ 255], 90.00th=[ 284], 95.00th=[ 309], | 99.00th=[ 355], 99.50th=[ 363], 99.90th=[ 397], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 75, max= 239, per=24.73%, avg=147.39, stdev=37.59, samples=69 iops : min= 18, max= 59, avg=36.36, stdev= 9.41, samples=69 lat (msec) : 100=0.08%, 250=80.31%, 500=19.61% cpu : usr=0.29%, sys=1.79%, ctx=4335, 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=573KiB/s (587kB/s), 143KiB/s-145KiB/s (146kB/s-148kB/s), io=19.6MiB (20.5MB), run=34906-35023msec WRITE: bw=597KiB/s (611kB/s), 148KiB/s-151KiB/s (152kB/s-154kB/s), io=20.4MiB (21.4MB), run=34906-35023msec 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=180261: Sun Aug 23 12:20:10 2026 read: IOPS=2, BW=80.2MiB/s (84.1MB/s)(40.0MiB/499msec) slat (nsec): min=37606k, max=37606k, avg=37606142.00, stdev= 0.00 clat (nsec): min=445566k, max=445566k, avg=445565620.00, stdev= 0.00 lat (nsec): min=483176k, max=483176k, avg=483176267.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 447], 5.00th=[ 447], 10.00th=[ 447], 20.00th=[ 447], | 30.00th=[ 447], 40.00th=[ 447], 50.00th=[ 447], 60.00th=[ 447], | 70.00th=[ 447], 80.00th=[ 447], 90.00th=[ 447], 95.00th=[ 447], | 99.00th=[ 447], 99.50th=[ 447], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.61%, ctx=7, 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=80.2MiB/s (84.1MB/s), 80.2MiB/s-80.2MiB/s (84.1MB/s-84.1MB/s), io=40.0MiB (41.9MB), run=499-499msec 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