== sanity test 398c: run fio to test AIO ================= 23:30:51 (1787196651) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.367268 s, 114 MB/s osc.lustre-OST0000-osc-ffff899c837de800.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=179778: Wed Aug 19 23:31:22 2026 write: IOPS=114, BW=458KiB/s (469kB/s)(10.0MiB/22337msec); 0 zone resets slat (usec): min=21, max=9015, avg=153.25, stdev=497.57 clat (msec): min=17, max=310, avg=138.94, stdev=36.01 lat (msec): min=18, max=310, avg=139.09, stdev=36.00 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 89], 10.00th=[ 100], 20.00th=[ 112], | 30.00th=[ 122], 40.00th=[ 127], 50.00th=[ 134], 60.00th=[ 144], | 70.00th=[ 150], 80.00th=[ 165], 90.00th=[ 188], 95.00th=[ 205], | 99.00th=[ 236], 99.50th=[ 268], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 260, max= 678, per=24.93%, avg=456.80, stdev=89.49, samples=44 iops : min= 65, max= 169, avg=113.86, stdev=22.30, samples=44 lat (msec) : 20=0.04%, 50=0.86%, 100=9.69%, 250=88.91%, 500=0.51% cpu : usr=0.27%, sys=1.20%, ctx=2671, 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=179779: Wed Aug 19 23:31:22 2026 write: IOPS=115, BW=461KiB/s (473kB/s)(10.0MiB/22189msec); 0 zone resets slat (usec): min=21, max=13160, avg=143.06, stdev=511.44 clat (msec): min=30, max=299, avg=138.40, stdev=37.49 lat (msec): min=30, max=299, avg=138.55, stdev=37.49 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 87], 10.00th=[ 100], 20.00th=[ 110], | 30.00th=[ 121], 40.00th=[ 127], 50.00th=[ 134], 60.00th=[ 142], | 70.00th=[ 153], 80.00th=[ 165], 90.00th=[ 186], 95.00th=[ 211], | 99.00th=[ 259], 99.50th=[ 259], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 300] bw ( KiB/s): min= 259, max= 795, per=25.00%, avg=458.00, stdev=99.14, samples=44 iops : min= 64, max= 198, avg=114.11, stdev=24.78, samples=44 lat (msec) : 50=1.37%, 100=9.41%, 250=88.16%, 500=1.05% cpu : usr=0.14%, sys=0.89%, ctx=2159, 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=179780: Wed Aug 19 23:31:22 2026 write: IOPS=114, BW=458KiB/s (469kB/s)(10.0MiB/22336msec); 0 zone resets slat (usec): min=21, max=10867, avg=158.53, stdev=506.14 clat (msec): min=17, max=276, avg=138.94, stdev=36.57 lat (msec): min=18, max=276, avg=139.10, stdev=36.56 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 86], 10.00th=[ 100], 20.00th=[ 110], | 30.00th=[ 121], 40.00th=[ 129], 50.00th=[ 134], 60.00th=[ 144], | 70.00th=[ 153], 80.00th=[ 165], 90.00th=[ 190], 95.00th=[ 209], | 99.00th=[ 253], 99.50th=[ 253], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 260, max= 631, per=24.81%, avg=454.45, stdev=86.96, samples=44 iops : min= 65, max= 157, avg=113.25, stdev=21.68, samples=44 lat (msec) : 20=0.04%, 50=0.51%, 100=10.12%, 250=88.32%, 500=1.02% cpu : usr=0.21%, sys=1.05%, ctx=2760, 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=179781: Wed Aug 19 23:31:22 2026 write: IOPS=114, BW=458KiB/s (469kB/s)(10.0MiB/22356msec); 0 zone resets slat (usec): min=21, max=11450, avg=131.92, stdev=529.30 clat (msec): min=25, max=299, avg=138.99, stdev=36.34 lat (msec): min=25, max=299, avg=139.13, stdev=36.33 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 89], 10.00th=[ 102], 20.00th=[ 110], | 30.00th=[ 118], 40.00th=[ 126], 50.00th=[ 136], 60.00th=[ 142], | 70.00th=[ 150], 80.00th=[ 165], 90.00th=[ 188], 95.00th=[ 211], | 99.00th=[ 259], 99.50th=[ 259], 99.90th=[ 284], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 264, max= 632, per=24.79%, avg=454.09, stdev=83.22, samples=44 iops : min= 66, max= 158, avg=113.18, stdev=20.77, samples=44 lat (msec) : 50=0.08%, 100=9.02%, 250=89.61%, 500=1.29% cpu : usr=0.14%, sys=0.87%, ctx=2113, 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=1832KiB/s (1876kB/s), 458KiB/s-461KiB/s (469kB/s-473kB/s), io=40.0MiB (41.9MB), run=22189-22356msec 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=179795: Wed Aug 19 23:32:04 2026 read: IOPS=35, BW=143KiB/s (146kB/s)(5048KiB/35328msec) slat (usec): min=82, max=92671, avg=15356.75, stdev=10644.91 clat (msec): min=28, max=514, avg=207.65, stdev=82.44 lat (msec): min=28, max=536, avg=223.01, stdev=86.89 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 96], 10.00th=[ 116], 20.00th=[ 142], | 30.00th=[ 157], 40.00th=[ 174], 50.00th=[ 192], 60.00th=[ 213], | 70.00th=[ 239], 80.00th=[ 275], 90.00th=[ 330], 95.00th=[ 368], | 99.00th=[ 439], 99.50th=[ 464], 99.90th=[ 493], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 31, max= 272, per=24.94%, avg=141.67, stdev=49.56, samples=70 iops : min= 7, max= 68, avg=34.87, stdev=12.44, samples=70 write: IOPS=36, BW=147KiB/s (150kB/s)(5192KiB/35328msec); 0 zone resets slat (usec): min=22, max=13606, avg=197.52, stdev=766.95 clat (msec): min=28, max=521, avg=216.68, stdev=85.90 lat (msec): min=28, max=521, avg=216.88, stdev=85.91 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 97], 10.00th=[ 123], 20.00th=[ 148], | 30.00th=[ 165], 40.00th=[ 184], 50.00th=[ 199], 60.00th=[ 220], | 70.00th=[ 249], 80.00th=[ 284], 90.00th=[ 351], 95.00th=[ 388], | 99.00th=[ 464], 99.50th=[ 481], 99.90th=[ 506], 99.95th=[ 523], | 99.99th=[ 523] bw ( KiB/s): min= 54, max= 272, per=24.60%, avg=145.37, stdev=53.06, samples=70 iops : min= 13, max= 68, avg=35.79, stdev=13.28, samples=70 lat (msec) : 50=0.31%, 100=5.43%, 250=66.13%, 500=28.01%, 750=0.12% cpu : usr=0.21%, sys=1.34%, ctx=3977, 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=179796: Wed Aug 19 23:32:04 2026 read: IOPS=35, BW=142KiB/s (145kB/s)(4976KiB/35028msec) slat (usec): min=46, max=80226, avg=15298.94, stdev=10301.96 clat (msec): min=8, max=503, avg=206.78, stdev=81.71 lat (msec): min=11, max=510, avg=222.09, stdev=85.50 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 97], 10.00th=[ 116], 20.00th=[ 140], | 30.00th=[ 157], 40.00th=[ 174], 50.00th=[ 192], 60.00th=[ 211], | 70.00th=[ 239], 80.00th=[ 275], 90.00th=[ 330], 95.00th=[ 363], | 99.00th=[ 430], 99.50th=[ 447], 99.90th=[ 477], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 39, max= 273, per=24.83%, avg=141.03, stdev=54.02, samples=69 iops : min= 9, max= 68, avg=34.71, stdev=13.56, samples=69 write: IOPS=37, BW=150KiB/s (154kB/s)(5264KiB/35028msec); 0 zone resets slat (usec): min=25, max=13180, avg=179.89, stdev=594.43 clat (msec): min=50, max=484, avg=215.22, stdev=84.79 lat (msec): min=50, max=484, avg=215.40, stdev=84.81 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 101], 10.00th=[ 122], 20.00th=[ 146], | 30.00th=[ 165], 40.00th=[ 184], 50.00th=[ 203], 60.00th=[ 220], | 70.00th=[ 243], 80.00th=[ 275], 90.00th=[ 342], 95.00th=[ 388], | 99.00th=[ 460], 99.50th=[ 468], 99.90th=[ 481], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 55, max= 325, per=25.38%, avg=150.01, stdev=58.79, samples=69 iops : min= 13, max= 81, avg=36.97, stdev=14.76, samples=69 lat (msec) : 10=0.04%, 20=0.04%, 50=0.08%, 100=5.04%, 250=67.85% lat (msec) : 500=26.91%, 750=0.04% cpu : usr=0.27%, sys=1.52%, ctx=4236, 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=179797: Wed Aug 19 23:32:04 2026 read: IOPS=35, BW=141KiB/s (145kB/s)(4984KiB/35250msec) slat (usec): min=2433, max=95963, avg=15727.57, stdev=11521.63 clat (msec): min=53, max=494, avg=208.03, stdev=80.66 lat (msec): min=64, max=538, avg=223.76, stdev=85.45 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 103], 10.00th=[ 121], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 171], 50.00th=[ 190], 60.00th=[ 213], | 70.00th=[ 241], 80.00th=[ 271], 90.00th=[ 330], 95.00th=[ 368], | 99.00th=[ 439], 99.50th=[ 464], 99.90th=[ 489], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 47, max= 278, per=24.79%, avg=140.83, stdev=53.38, samples=69 iops : min= 11, max= 69, avg=34.67, stdev=13.38, samples=69 write: IOPS=37, BW=149KiB/s (153kB/s)(5256KiB/35250msec); 0 zone resets slat (usec): min=25, max=17520, avg=198.17, stdev=744.22 clat (msec): min=63, max=537, avg=215.11, stdev=84.12 lat (msec): min=63, max=537, avg=215.31, stdev=84.19 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 103], 10.00th=[ 124], 20.00th=[ 146], | 30.00th=[ 165], 40.00th=[ 182], 50.00th=[ 199], 60.00th=[ 220], | 70.00th=[ 245], 80.00th=[ 279], 90.00th=[ 338], 95.00th=[ 372], | 99.00th=[ 468], 99.50th=[ 489], 99.90th=[ 531], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 31, max= 286, per=25.00%, avg=147.74, stdev=56.98, samples=69 iops : min= 7, max= 71, avg=36.38, stdev=14.32, samples=69 lat (msec) : 100=4.45%, 250=68.09%, 500=27.27%, 750=0.20% cpu : usr=0.24%, sys=1.58%, ctx=4341, 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=179798: Wed Aug 19 23:32:04 2026 read: IOPS=35, BW=144KiB/s (147kB/s)(5060KiB/35195msec) slat (usec): min=2017, max=93085, avg=15140.51, stdev=10151.32 clat (msec): min=33, max=477, avg=208.37, stdev=79.89 lat (msec): min=43, max=492, avg=223.52, stdev=83.55 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 101], 10.00th=[ 120], 20.00th=[ 142], | 30.00th=[ 159], 40.00th=[ 174], 50.00th=[ 192], 60.00th=[ 215], | 70.00th=[ 239], 80.00th=[ 275], 90.00th=[ 321], 95.00th=[ 363], | 99.00th=[ 430], 99.50th=[ 451], 99.90th=[ 468], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 39, max= 288, per=25.12%, avg=142.67, stdev=51.32, samples=69 iops : min= 9, max= 72, avg=35.12, stdev=12.89, samples=69 write: IOPS=36, BW=147KiB/s (151kB/s)(5180KiB/35195msec); 0 zone resets slat (usec): min=25, max=19904, avg=229.67, stdev=940.78 clat (msec): min=67, max=525, avg=214.62, stdev=83.86 lat (msec): min=68, max=526, avg=214.85, stdev=83.89 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 99], 10.00th=[ 123], 20.00th=[ 148], | 30.00th=[ 163], 40.00th=[ 178], 50.00th=[ 199], 60.00th=[ 218], | 70.00th=[ 245], 80.00th=[ 284], 90.00th=[ 338], 95.00th=[ 376], | 99.00th=[ 451], 99.50th=[ 464], 99.90th=[ 502], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 63, max= 310, per=24.68%, avg=145.87, stdev=53.43, samples=69 iops : min= 15, max= 77, avg=35.93, stdev=13.38, samples=69 lat (msec) : 50=0.04%, 100=4.96%, 250=67.34%, 500=27.58%, 750=0.08% cpu : usr=0.19%, sys=1.38%, ctx=4361, 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=568KiB/s (582kB/s), 141KiB/s-144KiB/s (145kB/s-147kB/s), io=19.6MiB (20.5MB), run=35028-35328msec WRITE: bw=591KiB/s (606kB/s), 147KiB/s-150KiB/s (150kB/s-154kB/s), io=20.4MiB (21.4MB), run=35028-35328msec 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=179807: Wed Aug 19 23:32:15 2026 read: IOPS=1, BW=71.3MiB/s (74.8MB/s)(40.0MiB/561msec) slat (nsec): min=42826k, max=42826k, avg=42825995.00, stdev= 0.00 clat (nsec): min=497965k, max=497965k, avg=497965013.00, stdev= 0.00 lat (nsec): min=540796k, max=540796k, avg=540795618.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 498], 5.00th=[ 498], 10.00th=[ 498], 20.00th=[ 498], | 30.00th=[ 498], 40.00th=[ 498], 50.00th=[ 498], 60.00th=[ 498], | 70.00th=[ 498], 80.00th=[ 498], 90.00th=[ 498], 95.00th=[ 498], | 99.00th=[ 498], 99.50th=[ 498], 99.90th=[ 498], 99.95th=[ 498], | 99.99th=[ 498] lat (msec) : 500=100.00% cpu : usr=0.18%, sys=2.14%, ctx=12, 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=71.3MiB/s (74.8MB/s), 71.3MiB/s-71.3MiB/s (74.8MB/s-74.8MB/s), io=40.0MiB (41.9MB), run=561-561msec 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