== sanity test 398c: run fio to test AIO ================= 01:15:01 (1783142101) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.27487 s, 153 MB/s osc.lustre-OST0000-osc-ffff8afec32bd800.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=181236: Sat Jul 4 01:15:29 2026 write: IOPS=118, BW=475KiB/s (487kB/s)(10.0MiB/21548msec); 0 zone resets slat (usec): min=38, max=19422, avg=305.78, stdev=765.20 clat (msec): min=8, max=261, avg=134.22, stdev=34.01 lat (msec): min=9, max=262, avg=134.53, stdev=34.04 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 84], 10.00th=[ 89], 20.00th=[ 103], | 30.00th=[ 118], 40.00th=[ 129], 50.00th=[ 136], 60.00th=[ 142], | 70.00th=[ 150], 80.00th=[ 161], 90.00th=[ 174], 95.00th=[ 188], | 99.00th=[ 245], 99.50th=[ 255], 99.90th=[ 259], 99.95th=[ 262], | 99.99th=[ 262] bw ( KiB/s): min= 256, max= 704, per=25.17%, avg=474.88, stdev=93.70, samples=42 iops : min= 64, max= 176, avg=118.40, stdev=23.49, samples=42 lat (msec) : 10=0.04%, 50=0.47%, 100=18.16%, 250=80.47%, 500=0.86% cpu : usr=0.27%, sys=1.64%, ctx=2762, 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=181237: Sat Jul 4 01:15:29 2026 write: IOPS=117, BW=472KiB/s (483kB/s)(10.0MiB/21701msec); 0 zone resets slat (usec): min=38, max=11030, avg=274.12, stdev=648.20 clat (msec): min=12, max=275, avg=134.37, stdev=33.96 lat (msec): min=12, max=275, avg=134.65, stdev=33.99 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 83], 10.00th=[ 90], 20.00th=[ 102], | 30.00th=[ 118], 40.00th=[ 128], 50.00th=[ 134], 60.00th=[ 142], | 70.00th=[ 153], 80.00th=[ 161], 90.00th=[ 176], 95.00th=[ 190], | 99.00th=[ 236], 99.50th=[ 255], 99.90th=[ 262], 99.95th=[ 264], | 99.99th=[ 275] bw ( KiB/s): min= 264, max= 768, per=24.89%, avg=469.67, stdev=102.84, samples=43 iops : min= 66, max= 192, avg=117.12, stdev=25.76, samples=43 lat (msec) : 20=0.04%, 100=19.26%, 250=80.04%, 500=0.66% cpu : usr=0.20%, sys=1.55%, ctx=2176, 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=181238: Sat Jul 4 01:15:29 2026 write: IOPS=117, BW=472KiB/s (483kB/s)(10.0MiB/21705msec); 0 zone resets slat (usec): min=37, max=9262, avg=295.84, stdev=670.82 clat (msec): min=64, max=263, avg=134.47, stdev=32.43 lat (msec): min=64, max=263, avg=134.77, stdev=32.43 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 85], 10.00th=[ 93], 20.00th=[ 105], | 30.00th=[ 117], 40.00th=[ 128], 50.00th=[ 134], 60.00th=[ 142], | 70.00th=[ 153], 80.00th=[ 161], 90.00th=[ 174], 95.00th=[ 184], | 99.00th=[ 234], 99.50th=[ 253], 99.90th=[ 264], 99.95th=[ 264], | 99.99th=[ 264] bw ( KiB/s): min= 256, max= 768, per=24.88%, avg=469.53, stdev=95.43, samples=43 iops : min= 64, max= 192, avg=117.07, stdev=23.90, samples=43 lat (msec) : 100=16.02%, 250=83.44%, 500=0.55% cpu : usr=0.19%, sys=1.63%, ctx=2605, 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=181239: Sat Jul 4 01:15:29 2026 write: IOPS=118, BW=472KiB/s (484kB/s)(10.0MiB/21680msec); 0 zone resets slat (usec): min=40, max=37996, avg=357.77, stdev=1030.35 clat (msec): min=12, max=279, avg=134.25, stdev=34.01 lat (msec): min=13, max=279, avg=134.61, stdev=34.00 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 83], 10.00th=[ 91], 20.00th=[ 104], | 30.00th=[ 116], 40.00th=[ 128], 50.00th=[ 134], 60.00th=[ 142], | 70.00th=[ 150], 80.00th=[ 161], 90.00th=[ 176], 95.00th=[ 188], | 99.00th=[ 241], 99.50th=[ 249], 99.90th=[ 257], 99.95th=[ 264], | 99.99th=[ 279] bw ( KiB/s): min= 256, max= 736, per=25.02%, avg=472.12, stdev=91.28, samples=42 iops : min= 64, max= 184, avg=117.71, stdev=22.86, samples=42 lat (msec) : 20=0.08%, 50=0.16%, 100=18.05%, 250=81.37%, 500=0.35% cpu : usr=0.30%, sys=2.12%, ctx=3134, 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=1887KiB/s (1932kB/s), 472KiB/s-475KiB/s (483kB/s-487kB/s), io=40.0MiB (41.9MB), run=21548-21705msec 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=181252: Sat Jul 4 01:16:00 2026 read: IOPS=49, BW=200KiB/s (204kB/s)(5048KiB/25298msec) slat (usec): min=61, max=40432, avg=10837.00, stdev=5821.77 clat (msec): min=10, max=289, avg=149.35, stdev=40.14 lat (msec): min=16, max=310, avg=160.19, stdev=42.01 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 88], 10.00th=[ 99], 20.00th=[ 114], | 30.00th=[ 127], 40.00th=[ 136], 50.00th=[ 148], 60.00th=[ 159], | 70.00th=[ 169], 80.00th=[ 184], 90.00th=[ 203], 95.00th=[ 218], | 99.00th=[ 253], 99.50th=[ 268], 99.90th=[ 288], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 111, max= 312, per=25.11%, avg=198.60, stdev=49.94, samples=50 iops : min= 27, max= 78, avg=49.32, stdev=12.51, samples=50 write: IOPS=51, BW=205KiB/s (210kB/s)(5192KiB/25298msec); 0 zone resets slat (usec): min=46, max=11091, avg=337.69, stdev=757.83 clat (msec): min=63, max=313, avg=155.19, stdev=40.97 lat (msec): min=63, max=313, avg=155.53, stdev=41.00 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 96], 10.00th=[ 105], 20.00th=[ 118], | 30.00th=[ 129], 40.00th=[ 142], 50.00th=[ 155], 60.00th=[ 163], | 70.00th=[ 176], 80.00th=[ 188], 90.00th=[ 209], 95.00th=[ 226], | 99.00th=[ 275], 99.50th=[ 279], 99.90th=[ 309], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 111, max= 351, per=24.86%, avg=204.86, stdev=54.09, samples=50 iops : min= 27, max= 87, avg=50.88, stdev=13.49, samples=50 lat (msec) : 20=0.04%, 100=8.71%, 250=89.41%, 500=1.84% cpu : usr=0.32%, sys=2.38%, ctx=4766, 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=181253: Sat Jul 4 01:16:00 2026 read: IOPS=49, BW=196KiB/s (201kB/s)(4976KiB/25340msec) slat (usec): min=2645, max=50116, avg=11341.66, stdev=6184.57 clat (msec): min=30, max=314, avg=150.11, stdev=41.78 lat (msec): min=34, max=335, avg=161.46, stdev=43.84 clat percentiles (msec): | 1.00th=[ 68], 5.00th=[ 89], 10.00th=[ 99], 20.00th=[ 114], | 30.00th=[ 126], 40.00th=[ 136], 50.00th=[ 148], 60.00th=[ 159], | 70.00th=[ 171], 80.00th=[ 186], 90.00th=[ 205], 95.00th=[ 222], | 99.00th=[ 253], 99.50th=[ 288], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 74, max= 323, per=24.53%, avg=194.00, stdev=56.07, samples=50 iops : min= 18, max= 80, avg=48.14, stdev=13.98, samples=50 write: IOPS=51, BW=208KiB/s (213kB/s)(5264KiB/25340msec); 0 zone resets slat (usec): min=54, max=23681, avg=335.16, stdev=892.21 clat (msec): min=29, max=299, avg=153.03, stdev=38.50 lat (msec): min=30, max=299, avg=153.37, stdev=38.53 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 96], 10.00th=[ 105], 20.00th=[ 117], | 30.00th=[ 130], 40.00th=[ 142], 50.00th=[ 153], 60.00th=[ 163], | 70.00th=[ 174], 80.00th=[ 186], 90.00th=[ 201], 95.00th=[ 218], | 99.00th=[ 257], 99.50th=[ 271], 99.90th=[ 284], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 120, max= 311, per=25.05%, avg=206.40, stdev=52.19, samples=50 iops : min= 30, max= 77, avg=51.28, stdev=13.06, samples=50 lat (msec) : 50=0.23%, 100=8.79%, 250=89.49%, 500=1.48% cpu : usr=0.30%, sys=2.43%, ctx=4612, 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=181254: Sat Jul 4 01:16:00 2026 read: IOPS=49, BW=197KiB/s (201kB/s)(4984KiB/25336msec) slat (usec): min=1991, max=43763, avg=11232.81, stdev=6053.07 clat (msec): min=33, max=335, avg=150.39, stdev=43.06 lat (msec): min=39, max=359, avg=161.63, stdev=45.11 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 89], 10.00th=[ 99], 20.00th=[ 111], | 30.00th=[ 124], 40.00th=[ 136], 50.00th=[ 148], 60.00th=[ 159], | 70.00th=[ 171], 80.00th=[ 186], 90.00th=[ 205], 95.00th=[ 224], | 99.00th=[ 271], 99.50th=[ 300], 99.90th=[ 326], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 73, max= 298, per=24.71%, avg=195.42, stdev=50.81, samples=50 iops : min= 18, max= 74, avg=48.52, stdev=12.69, samples=50 write: IOPS=51, BW=207KiB/s (212kB/s)(5256KiB/25336msec); 0 zone resets slat (usec): min=44, max=12072, avg=293.28, stdev=612.65 clat (msec): min=25, max=351, avg=152.56, stdev=41.33 lat (msec): min=25, max=354, avg=152.86, stdev=41.34 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 94], 10.00th=[ 104], 20.00th=[ 114], | 30.00th=[ 126], 40.00th=[ 138], 50.00th=[ 153], 60.00th=[ 163], | 70.00th=[ 176], 80.00th=[ 190], 90.00th=[ 207], 95.00th=[ 220], | 99.00th=[ 262], 99.50th=[ 275], 99.90th=[ 292], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 81, max= 375, per=24.92%, avg=205.34, stdev=61.70, samples=50 iops : min= 20, max= 93, avg=51.02, stdev=15.44, samples=50 lat (msec) : 50=0.27%, 100=9.10%, 250=88.79%, 500=1.84% cpu : usr=0.28%, sys=2.57%, ctx=4559, 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=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=181255: Sat Jul 4 01:16:00 2026 read: IOPS=50, BW=200KiB/s (205kB/s)(5060KiB/25298msec) slat (usec): min=2356, max=52225, avg=10863.28, stdev=5805.02 clat (msec): min=21, max=317, avg=149.58, stdev=42.04 lat (msec): min=30, max=335, avg=160.45, stdev=43.78 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 89], 10.00th=[ 99], 20.00th=[ 113], | 30.00th=[ 124], 40.00th=[ 136], 50.00th=[ 148], 60.00th=[ 157], | 70.00th=[ 171], 80.00th=[ 184], 90.00th=[ 205], 95.00th=[ 228], | 99.00th=[ 262], 99.50th=[ 279], 99.90th=[ 309], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 67, max= 304, per=25.22%, avg=199.50, stdev=52.80, samples=50 iops : min= 16, max= 76, avg=49.54, stdev=13.23, samples=50 write: IOPS=51, BW=205KiB/s (210kB/s)(5180KiB/25298msec); 0 zone resets slat (usec): min=48, max=10116, avg=328.53, stdev=729.45 clat (msec): min=42, max=282, avg=152.89, stdev=40.13 lat (msec): min=42, max=282, avg=153.22, stdev=40.11 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 95], 10.00th=[ 105], 20.00th=[ 115], | 30.00th=[ 128], 40.00th=[ 136], 50.00th=[ 150], 60.00th=[ 163], | 70.00th=[ 174], 80.00th=[ 188], 90.00th=[ 205], 95.00th=[ 226], | 99.00th=[ 262], 99.50th=[ 271], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 81, max= 337, per=24.70%, avg=203.56, stdev=57.27, samples=50 iops : min= 20, max= 84, avg=50.58, stdev=14.30, samples=50 lat (msec) : 50=0.16%, 100=9.02%, 250=88.83%, 500=1.99% cpu : usr=0.30%, sys=2.48%, ctx=4891, 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=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=792KiB/s (811kB/s), 196KiB/s-200KiB/s (201kB/s-205kB/s), io=19.6MiB (20.5MB), run=25298-25340msec WRITE: bw=824KiB/s (844kB/s), 205KiB/s-208KiB/s (210kB/s-213kB/s), io=20.4MiB (21.4MB), run=25298-25340msec 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=181263: Sat Jul 4 01:16:07 2026 read: IOPS=3, BW=140MiB/s (147MB/s)(40.0MiB/285msec) slat (nsec): min=21481k, max=21481k, avg=21480761.00, stdev= 0.00 clat (nsec): min=247369k, max=247369k, avg=247369293.00, stdev= 0.00 lat (nsec): min=268856k, max=268856k, avg=268855591.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 247], 5.00th=[ 247], 10.00th=[ 247], 20.00th=[ 247], | 30.00th=[ 247], 40.00th=[ 247], 50.00th=[ 247], 60.00th=[ 247], | 70.00th=[ 247], 80.00th=[ 247], 90.00th=[ 247], 95.00th=[ 247], | 99.00th=[ 247], 99.50th=[ 247], 99.90th=[ 247], 99.95th=[ 247], | 99.99th=[ 247] lat (msec) : 250=100.00% cpu : usr=0.35%, sys=4.23%, ctx=4, 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=140MiB/s (147MB/s), 140MiB/s-140MiB/s (147MB/s-147MB/s), io=40.0MiB (41.9MB), run=285-285msec 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