== sanity test 398c: run fio to test AIO ================= 06:39:15 (1773225555) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.199608 s, 210 MB/s osc.lustre-OST0000-osc-ffff9d472fc84800.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=182894: Wed Mar 11 06:39:34 2026 write: IOPS=171, BW=687KiB/s (704kB/s)(10.0MiB/14902msec); 0 zone resets slat (usec): min=37, max=5714, avg=221.03, stdev=328.14 clat (msec): min=11, max=147, avg=92.40, stdev=16.71 lat (msec): min=11, max=148, avg=92.63, stdev=16.72 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 67], 10.00th=[ 72], 20.00th=[ 79], | 30.00th=[ 83], 40.00th=[ 88], 50.00th=[ 93], 60.00th=[ 96], | 70.00th=[ 101], 80.00th=[ 107], 90.00th=[ 115], 95.00th=[ 122], | 99.00th=[ 130], 99.50th=[ 142], 99.90th=[ 148], 99.95th=[ 148], | 99.99th=[ 148] bw ( KiB/s): min= 534, max= 848, per=24.84%, avg=682.48, stdev=83.33, samples=29 iops : min= 133, max= 212, avg=170.41, stdev=20.92, samples=29 lat (msec) : 20=0.08%, 50=0.62%, 100=68.24%, 250=31.05% cpu : usr=0.25%, sys=2.42%, ctx=2809, 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=182895: Wed Mar 11 06:39:34 2026 write: IOPS=172, BW=689KiB/s (706kB/s)(10.0MiB/14861msec); 0 zone resets slat (usec): min=38, max=21368, avg=236.34, stdev=524.44 clat (msec): min=10, max=148, avg=92.20, stdev=17.30 lat (msec): min=11, max=148, avg=92.44, stdev=17.26 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 66], 10.00th=[ 72], 20.00th=[ 79], | 30.00th=[ 83], 40.00th=[ 88], 50.00th=[ 92], 60.00th=[ 96], | 70.00th=[ 101], 80.00th=[ 107], 90.00th=[ 114], 95.00th=[ 123], | 99.00th=[ 133], 99.50th=[ 138], 99.90th=[ 148], 99.95th=[ 148], | 99.99th=[ 148] bw ( KiB/s): min= 558, max= 880, per=25.02%, avg=687.41, stdev=88.67, samples=29 iops : min= 139, max= 220, avg=171.66, stdev=22.26, samples=29 lat (msec) : 20=0.20%, 50=0.47%, 100=68.83%, 250=30.51% cpu : usr=0.24%, sys=2.57%, ctx=2880, 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=182896: Wed Mar 11 06:39:34 2026 write: IOPS=173, BW=693KiB/s (709kB/s)(10.0MiB/14781msec); 0 zone resets slat (usec): min=38, max=3110, avg=214.32, stdev=257.12 clat (msec): min=17, max=164, avg=92.06, stdev=17.75 lat (msec): min=17, max=164, avg=92.27, stdev=17.76 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 65], 10.00th=[ 71], 20.00th=[ 78], | 30.00th=[ 83], 40.00th=[ 88], 50.00th=[ 91], 60.00th=[ 96], | 70.00th=[ 102], 80.00th=[ 108], 90.00th=[ 113], 95.00th=[ 123], | 99.00th=[ 136], 99.50th=[ 142], 99.90th=[ 165], 99.95th=[ 165], | 99.99th=[ 165] bw ( KiB/s): min= 542, max= 935, per=25.13%, avg=690.69, stdev=98.01, samples=29 iops : min= 135, max= 233, avg=172.45, stdev=24.55, samples=29 lat (msec) : 20=0.12%, 50=0.62%, 100=67.07%, 250=32.19% cpu : usr=0.28%, sys=2.46%, ctx=2778, 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=182897: Wed Mar 11 06:39:34 2026 write: IOPS=172, BW=689KiB/s (705kB/s)(10.0MiB/14871msec); 0 zone resets slat (usec): min=44, max=14437, avg=238.73, stdev=414.06 clat (msec): min=8, max=157, avg=92.26, stdev=17.06 lat (msec): min=9, max=157, avg=92.50, stdev=17.06 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 67], 10.00th=[ 72], 20.00th=[ 79], | 30.00th=[ 84], 40.00th=[ 88], 50.00th=[ 92], 60.00th=[ 96], | 70.00th=[ 102], 80.00th=[ 107], 90.00th=[ 114], 95.00th=[ 122], | 99.00th=[ 134], 99.50th=[ 142], 99.90th=[ 148], 99.95th=[ 150], | 99.99th=[ 157] bw ( KiB/s): min= 558, max= 832, per=24.94%, avg=685.31, stdev=80.92, samples=29 iops : min= 139, max= 208, avg=171.10, stdev=20.31, samples=29 lat (msec) : 10=0.04%, 50=0.59%, 100=68.01%, 250=31.37% cpu : usr=0.39%, sys=2.53%, ctx=2908, 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=2749KiB/s (2815kB/s), 687KiB/s-693KiB/s (704kB/s-709kB/s), io=40.0MiB (41.9MB), run=14781-14902msec 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=182909: Wed Mar 11 06:39:52 2026 read: IOPS=87, BW=352KiB/s (360kB/s)(5048KiB/14347msec) slat (usec): min=1459, max=25454, avg=5853.10, stdev=2708.02 clat (msec): min=45, max=183, avg=85.01, stdev=18.48 lat (msec): min=47, max=196, avg=90.87, stdev=19.18 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 60], 10.00th=[ 64], 20.00th=[ 70], | 30.00th=[ 75], 40.00th=[ 80], 50.00th=[ 84], 60.00th=[ 88], | 70.00th=[ 92], 80.00th=[ 97], 90.00th=[ 108], 95.00th=[ 118], | 99.00th=[ 144], 99.50th=[ 153], 99.90th=[ 184], 99.95th=[ 184], | 99.99th=[ 184] bw ( KiB/s): min= 208, max= 440, per=25.09%, avg=350.82, stdev=58.03, samples=28 iops : min= 52, max= 110, avg=87.46, stdev=14.51, samples=28 write: IOPS=90, BW=362KiB/s (371kB/s)(5192KiB/14347msec); 0 zone resets slat (usec): min=43, max=13106, avg=261.45, stdev=552.06 clat (msec): min=13, max=178, avg=87.18, stdev=17.36 lat (msec): min=13, max=178, avg=87.44, stdev=17.42 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 66], 10.00th=[ 69], 20.00th=[ 74], | 30.00th=[ 78], 40.00th=[ 82], 50.00th=[ 85], 60.00th=[ 89], | 70.00th=[ 94], 80.00th=[ 99], 90.00th=[ 109], 95.00th=[ 120], | 99.00th=[ 150], 99.50th=[ 159], 99.90th=[ 174], 99.95th=[ 180], | 99.99th=[ 180] bw ( KiB/s): min= 227, max= 470, per=24.88%, avg=361.96, stdev=57.89, samples=28 iops : min= 56, max= 117, avg=90.21, stdev=14.50, samples=28 lat (msec) : 20=0.04%, 50=0.23%, 100=82.66%, 250=17.07% cpu : usr=0.35%, sys=3.61%, ctx=4700, majf=0, minf=16 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=182910: Wed Mar 11 06:39:52 2026 read: IOPS=86, BW=347KiB/s (355kB/s)(4976KiB/14349msec) slat (usec): min=1492, max=24401, avg=5925.96, stdev=2692.29 clat (msec): min=10, max=194, avg=85.21, stdev=18.99 lat (msec): min=13, max=200, avg=91.14, stdev=19.72 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 61], 10.00th=[ 66], 20.00th=[ 71], | 30.00th=[ 75], 40.00th=[ 79], 50.00th=[ 83], 60.00th=[ 87], | 70.00th=[ 92], 80.00th=[ 99], 90.00th=[ 109], 95.00th=[ 123], | 99.00th=[ 142], 99.50th=[ 148], 99.90th=[ 192], 99.95th=[ 194], | 99.99th=[ 194] bw ( KiB/s): min= 243, max= 432, per=24.63%, avg=344.29, stdev=47.91, samples=28 iops : min= 60, max= 108, avg=85.79, stdev=12.06, samples=28 write: IOPS=91, BW=367KiB/s (376kB/s)(5264KiB/14349msec); 0 zone resets slat (usec): min=39, max=7604, avg=276.80, stdev=469.81 clat (msec): min=26, max=175, avg=87.14, stdev=17.27 lat (msec): min=26, max=176, avg=87.42, stdev=17.29 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 65], 10.00th=[ 68], 20.00th=[ 73], | 30.00th=[ 78], 40.00th=[ 82], 50.00th=[ 85], 60.00th=[ 89], | 70.00th=[ 93], 80.00th=[ 100], 90.00th=[ 111], 95.00th=[ 118], | 99.00th=[ 142], 99.50th=[ 150], 99.90th=[ 169], 99.95th=[ 176], | 99.99th=[ 176] bw ( KiB/s): min= 224, max= 505, per=25.09%, avg=365.04, stdev=60.15, samples=28 iops : min= 56, max= 126, avg=91.04, stdev=15.03, samples=28 lat (msec) : 20=0.04%, 50=0.66%, 100=81.29%, 250=18.01% cpu : usr=0.31%, sys=3.32%, ctx=4699, 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=182911: Wed Mar 11 06:39:52 2026 read: IOPS=86, BW=348KiB/s (356kB/s)(4984KiB/14341msec) slat (usec): min=1807, max=24156, avg=6023.87, stdev=2703.22 clat (msec): min=31, max=174, avg=84.90, stdev=18.33 lat (msec): min=37, max=183, avg=90.93, stdev=19.02 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 61], 10.00th=[ 65], 20.00th=[ 70], | 30.00th=[ 75], 40.00th=[ 79], 50.00th=[ 84], 60.00th=[ 87], | 70.00th=[ 92], 80.00th=[ 99], 90.00th=[ 107], 95.00th=[ 121], | 99.00th=[ 142], 99.50th=[ 150], 99.90th=[ 176], 99.95th=[ 176], | 99.99th=[ 176] bw ( KiB/s): min= 227, max= 456, per=24.85%, avg=347.36, stdev=60.20, samples=28 iops : min= 56, max= 114, avg=86.57, stdev=15.10, samples=28 write: IOPS=91, BW=367KiB/s (375kB/s)(5256KiB/14341msec); 0 zone resets slat (usec): min=40, max=7347, avg=252.51, stdev=395.34 clat (msec): min=23, max=186, avg=87.21, stdev=17.48 lat (msec): min=24, max=187, avg=87.46, stdev=17.49 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 66], 10.00th=[ 69], 20.00th=[ 74], | 30.00th=[ 79], 40.00th=[ 81], 50.00th=[ 85], 60.00th=[ 89], | 70.00th=[ 93], 80.00th=[ 100], 90.00th=[ 109], 95.00th=[ 120], | 99.00th=[ 140], 99.50th=[ 159], 99.90th=[ 176], 99.95th=[ 188], | 99.99th=[ 188] bw ( KiB/s): min= 256, max= 488, per=25.04%, avg=364.29, stdev=54.03, samples=28 iops : min= 64, max= 122, avg=90.82, stdev=13.52, samples=28 lat (msec) : 50=0.55%, 100=81.45%, 250=18.01% cpu : usr=0.36%, sys=3.38%, ctx=4679, majf=0, minf=16 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=182912: Wed Mar 11 06:39:52 2026 read: IOPS=88, BW=355KiB/s (363kB/s)(5060KiB/14261msec) slat (usec): min=84, max=25892, avg=5902.35, stdev=2771.80 clat (msec): min=15, max=181, avg=84.62, stdev=19.03 lat (msec): min=15, max=190, avg=90.53, stdev=19.80 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 61], 10.00th=[ 65], 20.00th=[ 70], | 30.00th=[ 74], 40.00th=[ 80], 50.00th=[ 83], 60.00th=[ 87], | 70.00th=[ 92], 80.00th=[ 99], 90.00th=[ 109], 95.00th=[ 120], | 99.00th=[ 150], 99.50th=[ 159], 99.90th=[ 180], 99.95th=[ 182], | 99.99th=[ 182] bw ( KiB/s): min= 243, max= 448, per=25.39%, avg=354.93, stdev=46.41, samples=28 iops : min= 60, max= 112, avg=88.46, stdev=11.62, samples=28 write: IOPS=90, BW=363KiB/s (372kB/s)(5180KiB/14261msec); 0 zone resets slat (usec): min=42, max=5925, avg=237.56, stdev=354.24 clat (msec): min=26, max=189, avg=87.28, stdev=18.16 lat (msec): min=26, max=191, avg=87.52, stdev=18.17 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 64], 10.00th=[ 69], 20.00th=[ 74], | 30.00th=[ 78], 40.00th=[ 82], 50.00th=[ 84], 60.00th=[ 88], | 70.00th=[ 93], 80.00th=[ 101], 90.00th=[ 113], 95.00th=[ 121], | 99.00th=[ 148], 99.50th=[ 153], 99.90th=[ 176], 99.95th=[ 190], | 99.99th=[ 190] bw ( KiB/s): min= 248, max= 448, per=24.95%, avg=363.07, stdev=59.91, samples=28 iops : min= 62, max= 112, avg=90.54, stdev=15.01, samples=28 lat (msec) : 20=0.16%, 50=0.78%, 100=80.74%, 250=18.32% cpu : usr=0.34%, sys=3.41%, ctx=4626, 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=1399KiB/s (1432kB/s), 347KiB/s-355KiB/s (355kB/s-363kB/s), io=19.6MiB (20.5MB), run=14261-14349msec WRITE: bw=1456KiB/s (1491kB/s), 362KiB/s-367KiB/s (371kB/s-376kB/s), io=20.4MiB (21.4MB), run=14261-14349msec 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=182917: Wed Mar 11 06:39:56 2026 read: IOPS=5, BW=211MiB/s (221MB/s)(40.0MiB/190msec) slat (nsec): min=15010k, max=15010k, avg=15009547.00, stdev= 0.00 clat (nsec): min=166469k, max=166469k, avg=166468768.00, stdev= 0.00 lat (nsec): min=181482k, max=181482k, avg=181481870.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 167], 10.00th=[ 167], 20.00th=[ 167], | 30.00th=[ 167], 40.00th=[ 167], 50.00th=[ 167], 60.00th=[ 167], | 70.00th=[ 167], 80.00th=[ 167], 90.00th=[ 167], 95.00th=[ 167], | 99.00th=[ 167], 99.50th=[ 167], 99.90th=[ 167], 99.95th=[ 167], | 99.99th=[ 167] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=5.82%, ctx=12, majf=0, minf=10 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=211MiB/s (221MB/s), 211MiB/s-211MiB/s (221MB/s-221MB/s), io=40.0MiB (41.9MB), run=190-190msec 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