== sanity test 398c: run fio to test AIO ================= 05:12:06 (1784193126) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.424772 s, 98.7 MB/s osc.lustre-OST0000-osc-ffff92b2c5147000.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=180262: Thu Jul 16 05:12:55 2026 write: IOPS=66, BW=266KiB/s (272kB/s)(10.0MiB/38484msec); 0 zone resets slat (usec): min=43, max=29551, avg=437.83, stdev=1475.47 clat (msec): min=22, max=780, avg=239.87, stdev=110.58 lat (msec): min=22, max=781, avg=240.31, stdev=110.68 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 94], 10.00th=[ 118], 20.00th=[ 155], | 30.00th=[ 178], 40.00th=[ 203], 50.00th=[ 218], 60.00th=[ 236], | 70.00th=[ 271], 80.00th=[ 321], 90.00th=[ 380], 95.00th=[ 481], | 99.00th=[ 550], 99.50th=[ 760], 99.90th=[ 785], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 95, max= 752, per=25.16%, avg=265.41, stdev=117.41, samples=76 iops : min= 23, max= 188, avg=65.89, stdev=29.42, samples=76 lat (msec) : 50=0.12%, 100=5.70%, 250=57.85%, 500=32.46%, 750=3.36% lat (msec) : 1000=0.51% cpu : usr=0.18%, sys=1.12%, ctx=2700, 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=180263: Thu Jul 16 05:12:55 2026 write: IOPS=65, BW=264KiB/s (270kB/s)(10.0MiB/38801msec); 0 zone resets slat (usec): min=35, max=34305, avg=411.80, stdev=1509.56 clat (msec): min=42, max=809, avg=240.86, stdev=108.84 lat (msec): min=43, max=809, avg=241.28, stdev=108.92 clat percentiles (msec): | 1.00th=[ 68], 5.00th=[ 92], 10.00th=[ 121], 20.00th=[ 157], | 30.00th=[ 180], 40.00th=[ 205], 50.00th=[ 222], 60.00th=[ 239], | 70.00th=[ 275], 80.00th=[ 317], 90.00th=[ 384], 95.00th=[ 464], | 99.00th=[ 535], 99.50th=[ 584], 99.90th=[ 810], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 71, max= 768, per=24.94%, avg=263.12, stdev=115.99, samples=76 iops : min= 17, max= 192, avg=65.33, stdev=29.07, samples=76 lat (msec) : 50=0.08%, 100=5.82%, 250=57.38%, 500=33.36%, 750=3.12% lat (msec) : 1000=0.23% cpu : usr=0.18%, sys=1.00%, ctx=2547, 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=180264: Thu Jul 16 05:12:55 2026 write: IOPS=66, BW=264KiB/s (270kB/s)(10.0MiB/38778msec); 0 zone resets slat (usec): min=46, max=42820, avg=421.39, stdev=1508.23 clat (msec): min=12, max=782, avg=240.60, stdev=108.82 lat (msec): min=13, max=782, avg=241.02, stdev=108.90 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 92], 10.00th=[ 125], 20.00th=[ 159], | 30.00th=[ 180], 40.00th=[ 201], 50.00th=[ 218], 60.00th=[ 241], | 70.00th=[ 271], 80.00th=[ 326], 90.00th=[ 380], 95.00th=[ 472], | 99.00th=[ 558], 99.50th=[ 584], 99.90th=[ 760], 99.95th=[ 760], | 99.99th=[ 785] bw ( KiB/s): min= 119, max= 696, per=24.93%, avg=263.01, stdev=112.39, samples=76 iops : min= 29, max= 174, avg=65.32, stdev=28.19, samples=76 lat (msec) : 20=0.04%, 50=0.12%, 100=5.78%, 250=56.99%, 500=34.10% lat (msec) : 750=2.77%, 1000=0.20% cpu : usr=0.14%, sys=1.06%, ctx=2859, 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 rand-write: (groupid=0, jobs=1): err= 0: pid=180265: Thu Jul 16 05:12:55 2026 write: IOPS=65, BW=264KiB/s (270kB/s)(10.0MiB/38796msec); 0 zone resets slat (usec): min=33, max=17271, avg=326.20, stdev=968.57 clat (msec): min=61, max=730, avg=241.14, stdev=107.49 lat (msec): min=61, max=734, avg=241.47, stdev=107.51 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 97], 10.00th=[ 125], 20.00th=[ 155], | 30.00th=[ 178], 40.00th=[ 207], 50.00th=[ 222], 60.00th=[ 243], | 70.00th=[ 275], 80.00th=[ 321], 90.00th=[ 388], 95.00th=[ 468], | 99.00th=[ 527], 99.50th=[ 617], 99.90th=[ 735], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 119, max= 768, per=24.92%, avg=262.88, stdev=120.37, samples=76 iops : min= 29, max= 192, avg=65.29, stdev=30.18, samples=76 lat (msec) : 100=5.04%, 250=57.97%, 500=34.45%, 750=2.54% cpu : usr=0.12%, sys=0.95%, ctx=2045, 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 Run status group 0 (all jobs): WRITE: bw=1056KiB/s (1081kB/s), 264KiB/s-266KiB/s (270kB/s-272kB/s), io=40.0MiB (41.9MB), run=38484-38801msec 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=180282: Thu Jul 16 05:13:44 2026 read: IOPS=34, BW=138KiB/s (142kB/s)(5048KiB/36512msec) slat (usec): min=2832, max=79416, avg=16592.37, stdev=11468.97 clat (msec): min=58, max=535, avg=212.94, stdev=84.07 lat (msec): min=71, max=593, avg=229.55, stdev=89.55 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 105], 10.00th=[ 117], 20.00th=[ 142], | 30.00th=[ 161], 40.00th=[ 180], 50.00th=[ 201], 60.00th=[ 220], | 70.00th=[ 245], 80.00th=[ 275], 90.00th=[ 334], 95.00th=[ 384], | 99.00th=[ 464], 99.50th=[ 481], 99.90th=[ 531], 99.95th=[ 535], | 99.99th=[ 535] bw ( KiB/s): min= 38, max= 279, per=25.10%, avg=137.79, stdev=55.29, samples=71 iops : min= 9, max= 69, avg=33.96, stdev=13.85, samples=71 write: IOPS=35, BW=142KiB/s (146kB/s)(5192KiB/36512msec); 0 zone resets slat (usec): min=40, max=19692, avg=428.25, stdev=1170.13 clat (msec): min=48, max=532, avg=221.36, stdev=82.50 lat (msec): min=53, max=532, avg=221.79, stdev=82.46 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 114], 10.00th=[ 126], 20.00th=[ 144], | 30.00th=[ 171], 40.00th=[ 190], 50.00th=[ 209], 60.00th=[ 226], | 70.00th=[ 253], 80.00th=[ 284], 90.00th=[ 347], 95.00th=[ 388], | 99.00th=[ 439], 99.50th=[ 460], 99.90th=[ 514], 99.95th=[ 535], | 99.99th=[ 535] bw ( KiB/s): min= 32, max= 256, per=24.81%, avg=141.93, stdev=53.15, samples=71 iops : min= 8, max= 64, avg=34.99, stdev=13.32, samples=71 lat (msec) : 50=0.04%, 100=2.73%, 250=68.24%, 500=28.75%, 750=0.23% cpu : usr=0.29%, sys=2.24%, ctx=4147, 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=180283: Thu Jul 16 05:13:44 2026 read: IOPS=34, BW=136KiB/s (140kB/s)(4976KiB/36508msec) slat (usec): min=2292, max=81636, avg=16854.87, stdev=11227.43 clat (msec): min=39, max=506, avg=214.89, stdev=83.07 lat (msec): min=82, max=560, avg=231.76, stdev=87.94 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 106], 10.00th=[ 118], 20.00th=[ 142], | 30.00th=[ 165], 40.00th=[ 184], 50.00th=[ 203], 60.00th=[ 222], | 70.00th=[ 243], 80.00th=[ 279], 90.00th=[ 338], 95.00th=[ 384], | 99.00th=[ 443], 99.50th=[ 460], 99.90th=[ 502], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 39, max= 279, per=24.76%, avg=135.94, stdev=51.82, samples=71 iops : min= 9, max= 69, avg=33.48, stdev=13.03, samples=71 write: IOPS=36, BW=144KiB/s (148kB/s)(5264KiB/36508msec); 0 zone resets slat (usec): min=43, max=26170, avg=414.63, stdev=1299.50 clat (msec): min=83, max=560, avg=221.43, stdev=82.73 lat (msec): min=83, max=560, avg=221.85, stdev=82.72 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 114], 10.00th=[ 129], 20.00th=[ 148], | 30.00th=[ 169], 40.00th=[ 188], 50.00th=[ 205], 60.00th=[ 230], | 70.00th=[ 257], 80.00th=[ 284], 90.00th=[ 338], 95.00th=[ 388], | 99.00th=[ 451], 99.50th=[ 489], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 48, max= 318, per=25.25%, avg=144.45, stdev=56.10, samples=71 iops : min= 12, max= 79, avg=35.65, stdev=14.07, samples=71 lat (msec) : 50=0.04%, 100=2.38%, 250=67.81%, 500=29.49%, 750=0.27% cpu : usr=0.32%, sys=2.25%, ctx=4344, 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=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=180284: Thu Jul 16 05:13:44 2026 read: IOPS=34, BW=137KiB/s (140kB/s)(4984KiB/36461msec) slat (usec): min=3031, max=81928, avg=16936.55, stdev=11223.93 clat (msec): min=23, max=609, avg=215.61, stdev=84.67 lat (msec): min=56, max=628, avg=232.56, stdev=89.65 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 107], 10.00th=[ 121], 20.00th=[ 142], | 30.00th=[ 161], 40.00th=[ 182], 50.00th=[ 201], 60.00th=[ 224], | 70.00th=[ 247], 80.00th=[ 284], 90.00th=[ 334], 95.00th=[ 384], | 99.00th=[ 443], 99.50th=[ 472], 99.90th=[ 592], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 43, max= 271, per=24.96%, avg=137.06, stdev=51.30, samples=71 iops : min= 10, max= 67, avg=33.73, stdev=12.87, samples=71 write: IOPS=36, BW=144KiB/s (148kB/s)(5256KiB/36461msec); 0 zone resets slat (usec): min=37, max=26610, avg=462.23, stdev=1555.00 clat (msec): min=88, max=545, avg=219.07, stdev=83.31 lat (msec): min=88, max=545, avg=219.53, stdev=83.30 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 113], 10.00th=[ 126], 20.00th=[ 148], | 30.00th=[ 167], 40.00th=[ 186], 50.00th=[ 205], 60.00th=[ 224], | 70.00th=[ 249], 80.00th=[ 279], 90.00th=[ 338], 95.00th=[ 388], | 99.00th=[ 477], 99.50th=[ 498], 99.90th=[ 531], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 38, max= 358, per=25.13%, avg=143.76, stdev=60.90, samples=71 iops : min= 9, max= 89, avg=35.44, stdev=15.29, samples=71 lat (msec) : 50=0.04%, 100=2.42%, 250=68.55%, 500=28.55%, 750=0.43% cpu : usr=0.27%, sys=2.00%, ctx=4324, 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=180285: Thu Jul 16 05:13:44 2026 read: IOPS=34, BW=139KiB/s (143kB/s)(5060KiB/36285msec) slat (usec): min=57, max=95602, avg=16705.48, stdev=11472.91 clat (msec): min=11, max=514, avg=216.14, stdev=87.49 lat (msec): min=31, max=541, avg=232.85, stdev=92.36 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 102], 10.00th=[ 115], 20.00th=[ 144], | 30.00th=[ 163], 40.00th=[ 180], 50.00th=[ 201], 60.00th=[ 224], | 70.00th=[ 247], 80.00th=[ 279], 90.00th=[ 342], 95.00th=[ 397], | 99.00th=[ 489], 99.50th=[ 498], 99.90th=[ 514], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 61, max= 294, per=25.39%, avg=139.39, stdev=48.89, samples=71 iops : min= 15, max= 73, avg=34.37, stdev=12.27, samples=71 write: IOPS=35, BW=143KiB/s (146kB/s)(5180KiB/36285msec); 0 zone resets slat (usec): min=40, max=26703, avg=441.21, stdev=1419.99 clat (msec): min=39, max=535, avg=219.81, stdev=81.76 lat (msec): min=39, max=535, avg=220.25, stdev=81.79 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 111], 10.00th=[ 125], 20.00th=[ 148], | 30.00th=[ 169], 40.00th=[ 186], 50.00th=[ 207], 60.00th=[ 226], | 70.00th=[ 251], 80.00th=[ 284], 90.00th=[ 342], 95.00th=[ 380], | 99.00th=[ 460], 99.50th=[ 485], 99.90th=[ 510], 99.95th=[ 535], | 99.99th=[ 535] bw ( KiB/s): min= 39, max= 294, per=24.95%, avg=142.73, stdev=57.98, samples=71 iops : min= 9, max= 73, avg=35.18, stdev=14.55, samples=71 lat (msec) : 20=0.04%, 50=0.08%, 100=3.09%, 250=66.84%, 500=29.61% lat (msec) : 750=0.35% cpu : usr=0.27%, sys=2.12%, ctx=4320, 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=550KiB/s (563kB/s), 136KiB/s-139KiB/s (140kB/s-143kB/s), io=19.6MiB (20.5MB), run=36285-36512msec WRITE: bw=572KiB/s (586kB/s), 142KiB/s-144KiB/s (146kB/s-148kB/s), io=20.4MiB (21.4MB), run=36285-36512msec 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=180294: Thu Jul 16 05:13:55 2026 read: IOPS=2, BW=86.0MiB/s (91.2MB/s)(40.0MiB/460msec) slat (nsec): min=36577k, max=36577k, avg=36577173.00, stdev= 0.00 clat (nsec): min=393529k, max=393529k, avg=393528714.00, stdev= 0.00 lat (nsec): min=430155k, max=430155k, avg=430155090.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 393], 10.00th=[ 393], 20.00th=[ 393], | 30.00th=[ 393], 40.00th=[ 393], 50.00th=[ 393], 60.00th=[ 393], | 70.00th=[ 393], 80.00th=[ 393], 90.00th=[ 393], 95.00th=[ 393], | 99.00th=[ 393], 99.50th=[ 393], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.61%, ctx=14, 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=86.0MiB/s (91.2MB/s), 86.0MiB/s-86.0MiB/s (91.2MB/s-91.2MB/s), io=40.0MiB (41.9MB), run=460-460msec 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