== sanity test 398c: run fio to test AIO ================= 19:32:29 (1786836749) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.168329 s, 249 MB/s osc.lustre-OST0000-osc-ffff9f6650c28800.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=181050: Sat Aug 15 19:32:46 2026 write: IOPS=213, BW=854KiB/s (875kB/s)(10.0MiB/11984msec); 0 zone resets slat (usec): min=36, max=4145, avg=225.38, stdev=243.46 clat (msec): min=11, max=141, avg=74.59, stdev=18.46 lat (msec): min=11, max=141, avg=74.81, stdev=18.47 clat percentiles (msec): | 1.00th=[ 37], 5.00th=[ 45], 10.00th=[ 51], 20.00th=[ 59], | 30.00th=[ 66], 40.00th=[ 70], 50.00th=[ 74], 60.00th=[ 80], | 70.00th=[ 84], 80.00th=[ 89], 90.00th=[ 100], 95.00th=[ 107], | 99.00th=[ 120], 99.50th=[ 127], 99.90th=[ 138], 99.95th=[ 138], | 99.99th=[ 142] bw ( KiB/s): min= 656, max= 1167, per=25.25%, avg=853.74, stdev=143.50, samples=23 iops : min= 164, max= 291, avg=213.30, stdev=35.83, samples=23 lat (msec) : 20=0.20%, 50=9.57%, 100=80.82%, 250=9.41% cpu : usr=0.33%, sys=3.35%, ctx=2762, 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=181051: Sat Aug 15 19:32:46 2026 write: IOPS=211, BW=845KiB/s (866kB/s)(10.0MiB/12112msec); 0 zone resets slat (usec): min=39, max=24552, avg=221.66, stdev=532.54 clat (msec): min=13, max=144, avg=75.10, stdev=18.23 lat (msec): min=14, max=144, avg=75.32, stdev=18.21 clat percentiles (msec): | 1.00th=[ 39], 5.00th=[ 46], 10.00th=[ 52], 20.00th=[ 61], | 30.00th=[ 66], 40.00th=[ 70], 50.00th=[ 74], 60.00th=[ 79], | 70.00th=[ 85], 80.00th=[ 90], 90.00th=[ 101], 95.00th=[ 106], | 99.00th=[ 124], 99.50th=[ 131], 99.90th=[ 144], 99.95th=[ 144], | 99.99th=[ 144] bw ( KiB/s): min= 688, max= 1136, per=25.01%, avg=845.70, stdev=131.34, samples=23 iops : min= 172, max= 284, avg=211.30, stdev=32.82, samples=23 lat (msec) : 20=0.08%, 50=7.81%, 100=82.30%, 250=9.80% cpu : usr=0.39%, sys=3.08%, ctx=2611, 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=181052: Sat Aug 15 19:32:46 2026 write: IOPS=211, BW=845KiB/s (866kB/s)(10.0MiB/12113msec); 0 zone resets slat (usec): min=37, max=5296, avg=199.35, stdev=272.06 clat (msec): min=9, max=144, avg=75.10, stdev=18.04 lat (msec): min=10, max=144, avg=75.30, stdev=18.06 clat percentiles (msec): | 1.00th=[ 40], 5.00th=[ 46], 10.00th=[ 53], 20.00th=[ 61], | 30.00th=[ 66], 40.00th=[ 70], 50.00th=[ 74], 60.00th=[ 80], | 70.00th=[ 84], 80.00th=[ 90], 90.00th=[ 101], 95.00th=[ 105], | 99.00th=[ 121], 99.50th=[ 138], 99.90th=[ 144], 99.95th=[ 144], | 99.99th=[ 144] bw ( KiB/s): min= 656, max= 1144, per=24.98%, avg=844.74, stdev=130.23, samples=23 iops : min= 164, max= 286, avg=211.09, stdev=32.58, samples=23 lat (msec) : 10=0.04%, 50=7.89%, 100=82.27%, 250=9.80% cpu : usr=0.33%, sys=2.75%, ctx=2427, 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=181053: Sat Aug 15 19:32:46 2026 write: IOPS=212, BW=850KiB/s (870kB/s)(10.0MiB/12047msec); 0 zone resets slat (usec): min=35, max=4781, avg=223.35, stdev=269.79 clat (msec): min=15, max=144, avg=74.88, stdev=18.75 lat (msec): min=15, max=144, avg=75.10, stdev=18.77 clat percentiles (msec): | 1.00th=[ 37], 5.00th=[ 46], 10.00th=[ 52], 20.00th=[ 59], | 30.00th=[ 66], 40.00th=[ 70], 50.00th=[ 74], 60.00th=[ 80], | 70.00th=[ 85], 80.00th=[ 89], 90.00th=[ 101], 95.00th=[ 107], | 99.00th=[ 125], 99.50th=[ 130], 99.90th=[ 144], 99.95th=[ 144], | 99.99th=[ 144] bw ( KiB/s): min= 685, max= 1150, per=25.16%, avg=850.57, stdev=140.13, samples=23 iops : min= 171, max= 287, avg=212.52, stdev=35.01, samples=23 lat (msec) : 20=0.08%, 50=9.30%, 100=80.35%, 250=10.27% cpu : usr=0.27%, sys=3.25%, ctx=2715, 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=3381KiB/s (3463kB/s), 845KiB/s-854KiB/s (866kB/s-875kB/s), io=40.0MiB (41.9MB), run=11984-12113msec 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=181064: Sat Aug 15 19:33:05 2026 read: IOPS=81, BW=325KiB/s (332kB/s)(5048KiB/15552msec) slat (usec): min=157, max=27419, avg=6784.84, stdev=3596.44 clat (msec): min=15, max=204, avg=90.96, stdev=22.93 lat (msec): min=15, max=212, avg=97.75, stdev=23.84 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 58], 10.00th=[ 66], 20.00th=[ 73], | 30.00th=[ 80], 40.00th=[ 85], 50.00th=[ 89], 60.00th=[ 94], | 70.00th=[ 100], 80.00th=[ 108], 90.00th=[ 120], 95.00th=[ 130], | 99.00th=[ 174], 99.50th=[ 182], 99.90th=[ 205], 99.95th=[ 205], | 99.99th=[ 205] bw ( KiB/s): min= 155, max= 472, per=25.05%, avg=323.20, stdev=66.76, samples=30 iops : min= 38, max= 118, avg=80.40, stdev=16.79, samples=30 write: IOPS=83, BW=334KiB/s (342kB/s)(5192KiB/15552msec); 0 zone resets slat (usec): min=43, max=8404, avg=257.68, stdev=524.28 clat (msec): min=15, max=224, avg=94.52, stdev=20.97 lat (msec): min=15, max=224, avg=94.78, stdev=20.97 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 65], 10.00th=[ 71], 20.00th=[ 79], | 30.00th=[ 84], 40.00th=[ 89], 50.00th=[ 92], 60.00th=[ 97], | 70.00th=[ 104], 80.00th=[ 111], 90.00th=[ 121], 95.00th=[ 131], | 99.00th=[ 153], 99.50th=[ 163], 99.90th=[ 224], 99.95th=[ 224], | 99.99th=[ 224] bw ( KiB/s): min= 175, max= 504, per=24.65%, avg=331.07, stdev=64.37, samples=30 iops : min= 43, max= 126, avg=82.37, stdev=16.18, samples=30 lat (msec) : 20=0.16%, 50=1.33%, 100=66.52%, 250=31.99% cpu : usr=0.25%, sys=3.25%, ctx=4715, 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=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=181065: Sat Aug 15 19:33:05 2026 read: IOPS=80, BW=321KiB/s (329kB/s)(4976KiB/15510msec) slat (usec): min=1683, max=23876, avg=6687.34, stdev=3265.92 clat (msec): min=12, max=178, avg=91.64, stdev=21.51 lat (msec): min=25, max=191, avg=98.34, stdev=22.26 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 60], 10.00th=[ 65], 20.00th=[ 74], | 30.00th=[ 80], 40.00th=[ 85], 50.00th=[ 90], 60.00th=[ 96], | 70.00th=[ 103], 80.00th=[ 109], 90.00th=[ 118], 95.00th=[ 128], | 99.00th=[ 161], 99.50th=[ 167], 99.90th=[ 178], 99.95th=[ 180], | 99.99th=[ 180] bw ( KiB/s): min= 181, max= 480, per=24.81%, avg=320.03, stdev=68.48, samples=30 iops : min= 45, max= 120, avg=79.63, stdev=17.17, samples=30 write: IOPS=84, BW=339KiB/s (348kB/s)(5264KiB/15510msec); 0 zone resets slat (usec): min=41, max=7525, avg=242.98, stdev=436.48 clat (msec): min=25, max=180, avg=94.22, stdev=19.83 lat (msec): min=25, max=181, avg=94.46, stdev=19.86 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 68], 10.00th=[ 72], 20.00th=[ 79], | 30.00th=[ 84], 40.00th=[ 88], 50.00th=[ 92], 60.00th=[ 97], | 70.00th=[ 102], 80.00th=[ 109], 90.00th=[ 120], 95.00th=[ 130], | 99.00th=[ 157], 99.50th=[ 167], 99.90th=[ 178], 99.95th=[ 182], | 99.99th=[ 182] bw ( KiB/s): min= 227, max= 456, per=25.20%, avg=338.40, stdev=56.73, samples=30 iops : min= 56, max= 114, avg=84.20, stdev=14.24, samples=30 lat (msec) : 20=0.04%, 50=0.55%, 100=66.52%, 250=32.89% cpu : usr=0.35%, sys=3.17%, ctx=4686, 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=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=181066: Sat Aug 15 19:33:05 2026 read: IOPS=80, BW=322KiB/s (330kB/s)(4984KiB/15485msec) slat (usec): min=1715, max=28042, avg=6791.09, stdev=3517.44 clat (msec): min=16, max=181, avg=91.16, stdev=21.70 lat (msec): min=19, max=200, avg=97.95, stdev=22.60 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 59], 10.00th=[ 66], 20.00th=[ 74], | 30.00th=[ 80], 40.00th=[ 85], 50.00th=[ 89], 60.00th=[ 94], | 70.00th=[ 101], 80.00th=[ 108], 90.00th=[ 118], 95.00th=[ 129], | 99.00th=[ 155], 99.50th=[ 169], 99.90th=[ 178], 99.95th=[ 182], | 99.99th=[ 182] bw ( KiB/s): min= 143, max= 456, per=24.98%, avg=322.23, stdev=70.04, samples=30 iops : min= 35, max= 114, avg=80.17, stdev=17.58, samples=30 write: IOPS=84, BW=339KiB/s (348kB/s)(5256KiB/15485msec); 0 zone resets slat (usec): min=39, max=7468, avg=266.29, stdev=507.81 clat (msec): min=37, max=191, avg=94.02, stdev=21.58 lat (msec): min=38, max=191, avg=94.29, stdev=21.58 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 64], 10.00th=[ 69], 20.00th=[ 77], | 30.00th=[ 83], 40.00th=[ 87], 50.00th=[ 92], 60.00th=[ 97], | 70.00th=[ 104], 80.00th=[ 111], 90.00th=[ 122], 95.00th=[ 132], | 99.00th=[ 161], 99.50th=[ 167], 99.90th=[ 188], 99.95th=[ 192], | 99.99th=[ 192] bw ( KiB/s): min= 214, max= 480, per=25.13%, avg=337.47, stdev=72.28, samples=30 iops : min= 53, max= 120, avg=84.00, stdev=18.15, samples=30 lat (msec) : 20=0.08%, 50=0.98%, 100=66.64%, 250=32.30% cpu : usr=0.27%, sys=3.16%, ctx=4668, 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=181067: Sat Aug 15 19:33:05 2026 read: IOPS=82, BW=328KiB/s (336kB/s)(5060KiB/15425msec) slat (usec): min=76, max=25089, avg=6713.03, stdev=3422.28 clat (msec): min=6, max=184, avg=91.30, stdev=22.42 lat (msec): min=19, max=194, avg=98.02, stdev=23.34 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 59], 10.00th=[ 67], 20.00th=[ 73], | 30.00th=[ 80], 40.00th=[ 85], 50.00th=[ 90], 60.00th=[ 95], | 70.00th=[ 101], 80.00th=[ 109], 90.00th=[ 120], 95.00th=[ 130], | 99.00th=[ 159], 99.50th=[ 171], 99.90th=[ 182], 99.95th=[ 186], | 99.99th=[ 186] bw ( KiB/s): min= 214, max= 440, per=25.43%, avg=328.10, stdev=59.96, samples=30 iops : min= 53, max= 110, avg=81.63, stdev=15.07, samples=30 write: IOPS=83, BW=336KiB/s (344kB/s)(5180KiB/15425msec); 0 zone resets slat (usec): min=46, max=6051, avg=256.78, stdev=450.45 clat (msec): min=17, max=194, avg=94.26, stdev=20.39 lat (msec): min=17, max=194, avg=94.53, stdev=20.39 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 66], 10.00th=[ 71], 20.00th=[ 79], | 30.00th=[ 84], 40.00th=[ 88], 50.00th=[ 93], 60.00th=[ 97], | 70.00th=[ 104], 80.00th=[ 109], 90.00th=[ 120], 95.00th=[ 131], | 99.00th=[ 159], 99.50th=[ 165], 99.90th=[ 174], 99.95th=[ 194], | 99.99th=[ 194] bw ( KiB/s): min= 224, max= 480, per=24.93%, avg=334.80, stdev=58.43, samples=30 iops : min= 56, max= 120, avg=83.37, stdev=14.67, samples=30 lat (msec) : 10=0.04%, 20=0.08%, 50=0.90%, 100=67.11%, 250=31.88% cpu : usr=0.32%, sys=3.20%, ctx=4654, 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=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=1290KiB/s (1321kB/s), 321KiB/s-328KiB/s (329kB/s-336kB/s), io=19.6MiB (20.5MB), run=15425-15552msec WRITE: bw=1343KiB/s (1376kB/s), 334KiB/s-339KiB/s (342kB/s-348kB/s), io=20.4MiB (21.4MB), run=15425-15552msec 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=181073: Sat Aug 15 19:33:09 2026 read: IOPS=6, BW=267MiB/s (280MB/s)(40.0MiB/150msec) slat (nsec): min=18246k, max=18246k, avg=18245913.00, stdev= 0.00 clat (nsec): min=123506k, max=123506k, avg=123505701.00, stdev= 0.00 lat (nsec): min=141756k, max=141756k, avg=141755629.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 124], 10.00th=[ 124], 20.00th=[ 124], | 30.00th=[ 124], 40.00th=[ 124], 50.00th=[ 124], 60.00th=[ 124], | 70.00th=[ 124], 80.00th=[ 124], 90.00th=[ 124], 95.00th=[ 124], | 99.00th=[ 124], 99.50th=[ 124], 99.90th=[ 124], 99.95th=[ 124], | 99.99th=[ 124] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=6.71%, 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=267MiB/s (280MB/s), 267MiB/s-267MiB/s (280MB/s-280MB/s), io=40.0MiB (41.9MB), run=150-150msec 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