== sanity test 398c: run fio to test AIO ================= 01:20:21 (1783142421) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.359369 s, 117 MB/s osc.lustre-OST0000-osc-ffff9dff39997000.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=181036: Sat Jul 4 01:20:56 2026 write: IOPS=98, BW=392KiB/s (402kB/s)(10.0MiB/26103msec); 0 zone resets slat (usec): min=54, max=11671, avg=359.69, stdev=813.78 clat (msec): min=27, max=335, avg=162.60, stdev=39.66 lat (msec): min=28, max=335, avg=162.97, stdev=39.67 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 114], 10.00th=[ 122], 20.00th=[ 130], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 167], | 70.00th=[ 180], 80.00th=[ 197], 90.00th=[ 215], 95.00th=[ 232], | 99.00th=[ 271], 99.50th=[ 292], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 252, max= 581, per=25.20%, avg=391.80, stdev=75.67, samples=51 iops : min= 63, max= 145, avg=97.61, stdev=18.90, samples=51 lat (msec) : 50=0.66%, 100=1.91%, 250=94.57%, 500=2.85% cpu : usr=0.19%, sys=1.47%, ctx=2753, 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=181037: Sat Jul 4 01:20:56 2026 write: IOPS=97, BW=389KiB/s (398kB/s)(10.0MiB/26324msec); 0 zone resets slat (usec): min=36, max=18536, avg=299.24, stdev=759.51 clat (msec): min=88, max=291, avg=163.59, stdev=37.41 lat (msec): min=89, max=291, avg=163.89, stdev=37.43 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 111], 10.00th=[ 120], 20.00th=[ 132], | 30.00th=[ 142], 40.00th=[ 148], 50.00th=[ 159], 60.00th=[ 167], | 70.00th=[ 180], 80.00th=[ 192], 90.00th=[ 215], 95.00th=[ 236], | 99.00th=[ 275], 99.50th=[ 288], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 208, max= 512, per=24.99%, avg=388.52, stdev=81.43, samples=52 iops : min= 52, max= 128, avg=96.81, stdev=20.35, samples=52 lat (msec) : 100=0.86%, 250=97.11%, 500=2.03% cpu : usr=0.16%, sys=1.28%, ctx=1973, 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=181038: Sat Jul 4 01:20:56 2026 write: IOPS=97, BW=389KiB/s (399kB/s)(10.0MiB/26297msec); 0 zone resets slat (usec): min=41, max=11752, avg=394.33, stdev=832.44 clat (msec): min=34, max=315, avg=163.34, stdev=37.69 lat (msec): min=35, max=315, avg=163.74, stdev=37.69 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 116], 10.00th=[ 121], 20.00th=[ 132], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 167], | 70.00th=[ 180], 80.00th=[ 194], 90.00th=[ 215], 95.00th=[ 234], | 99.00th=[ 271], 99.50th=[ 275], 99.90th=[ 292], 99.95th=[ 300], | 99.99th=[ 317] bw ( KiB/s): min= 254, max= 537, per=24.98%, avg=388.50, stdev=73.81, samples=52 iops : min= 63, max= 134, avg=96.79, stdev=18.42, samples=52 lat (msec) : 50=0.04%, 100=1.64%, 250=95.66%, 500=2.66% cpu : usr=0.21%, sys=1.51%, ctx=2996, 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=181039: Sat Jul 4 01:20:56 2026 write: IOPS=97, BW=389KiB/s (398kB/s)(10.0MiB/26330msec); 0 zone resets slat (usec): min=40, max=11273, avg=352.28, stdev=789.30 clat (msec): min=19, max=311, avg=163.47, stdev=37.07 lat (msec): min=19, max=311, avg=163.83, stdev=37.07 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 113], 10.00th=[ 120], 20.00th=[ 131], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 159], 60.00th=[ 169], | 70.00th=[ 182], 80.00th=[ 194], 90.00th=[ 215], 95.00th=[ 234], | 99.00th=[ 262], 99.50th=[ 275], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 248, max= 518, per=24.98%, avg=388.44, stdev=75.00, samples=52 iops : min= 62, max= 129, avg=96.79, stdev=18.73, samples=52 lat (msec) : 20=0.04%, 50=0.08%, 100=1.05%, 250=97.03%, 500=1.80% cpu : usr=0.17%, sys=1.42%, ctx=2735, 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=1556KiB/s (1593kB/s), 389KiB/s-392KiB/s (398kB/s-402kB/s), io=40.0MiB (41.9MB), run=26103-26330msec 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=181052: Sat Jul 4 01:21:34 2026 read: IOPS=40, BW=163KiB/s (167kB/s)(5048KiB/30906msec) slat (usec): min=60, max=57734, avg=13422.36, stdev=6880.29 clat (msec): min=12, max=393, avg=184.32, stdev=41.77 lat (msec): min=18, max=413, avg=197.75, stdev=43.30 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 123], 10.00th=[ 136], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 171], 50.00th=[ 182], 60.00th=[ 190], | 70.00th=[ 203], 80.00th=[ 220], 90.00th=[ 239], 95.00th=[ 253], | 99.00th=[ 288], 99.50th=[ 305], 99.90th=[ 368], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 72, max= 224, per=25.42%, avg=162.69, stdev=32.84, samples=61 iops : min= 18, max= 56, avg=40.23, stdev= 8.21, samples=61 write: IOPS=41, BW=168KiB/s (172kB/s)(5192KiB/30906msec); 0 zone resets slat (usec): min=54, max=10413, avg=379.13, stdev=820.92 clat (msec): min=44, max=367, avg=187.77, stdev=38.78 lat (msec): min=44, max=367, avg=188.15, stdev=38.82 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 132], 10.00th=[ 142], 20.00th=[ 155], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 194], | 70.00th=[ 207], 80.00th=[ 222], 90.00th=[ 239], 95.00th=[ 257], | 99.00th=[ 284], 99.50th=[ 288], 99.90th=[ 355], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 80, max= 240, per=25.14%, avg=167.69, stdev=34.78, samples=61 iops : min= 20, max= 60, avg=41.48, stdev= 8.72, samples=61 lat (msec) : 20=0.08%, 50=0.04%, 100=1.17%, 250=92.38%, 500=6.33% cpu : usr=0.23%, sys=1.99%, ctx=4445, 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=181053: Sat Jul 4 01:21:34 2026 read: IOPS=39, BW=159KiB/s (163kB/s)(4976KiB/31319msec) slat (usec): min=80, max=53100, avg=13835.13, stdev=6850.14 clat (msec): min=50, max=415, avg=185.74, stdev=40.88 lat (msec): min=69, max=438, avg=199.59, stdev=42.06 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 126], 10.00th=[ 136], 20.00th=[ 153], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 207], 80.00th=[ 222], 90.00th=[ 241], 95.00th=[ 253], | 99.00th=[ 284], 99.50th=[ 309], 99.90th=[ 342], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 79, max= 232, per=24.69%, avg=158.00, stdev=31.30, samples=62 iops : min= 19, max= 58, avg=39.03, stdev= 7.84, samples=62 write: IOPS=42, BW=168KiB/s (172kB/s)(5264KiB/31319msec); 0 zone resets slat (usec): min=58, max=9954, avg=408.02, stdev=910.81 clat (msec): min=64, max=398, avg=190.15, stdev=37.68 lat (msec): min=64, max=398, avg=190.56, stdev=37.65 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 136], 10.00th=[ 144], 20.00th=[ 159], | 30.00th=[ 169], 40.00th=[ 178], 50.00th=[ 188], 60.00th=[ 199], | 70.00th=[ 211], 80.00th=[ 222], 90.00th=[ 239], 95.00th=[ 255], | 99.00th=[ 279], 99.50th=[ 288], 99.90th=[ 372], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 96, max= 239, per=25.10%, avg=167.42, stdev=35.09, samples=62 iops : min= 24, max= 59, avg=41.40, stdev= 8.78, samples=62 lat (msec) : 100=0.74%, 250=93.44%, 500=5.82% cpu : usr=0.28%, sys=2.09%, ctx=4632, 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=181054: Sat Jul 4 01:21:34 2026 read: IOPS=39, BW=159KiB/s (163kB/s)(4984KiB/31322msec) slat (usec): min=88, max=48170, avg=13453.60, stdev=6504.75 clat (msec): min=11, max=309, avg=184.86, stdev=39.89 lat (msec): min=19, max=319, avg=198.32, stdev=41.16 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 126], 10.00th=[ 136], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 207], 80.00th=[ 220], 90.00th=[ 239], 95.00th=[ 257], | 99.00th=[ 284], 99.50th=[ 288], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 95, max= 224, per=24.83%, avg=158.89, stdev=32.01, samples=62 iops : min= 23, max= 56, avg=39.26, stdev= 8.08, samples=62 write: IOPS=41, BW=168KiB/s (172kB/s)(5256KiB/31322msec); 0 zone resets slat (usec): min=55, max=8737, avg=356.15, stdev=710.54 clat (msec): min=82, max=297, avg=191.28, stdev=37.18 lat (msec): min=82, max=297, avg=191.64, stdev=37.15 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 136], 10.00th=[ 144], 20.00th=[ 159], | 30.00th=[ 169], 40.00th=[ 180], 50.00th=[ 190], 60.00th=[ 199], | 70.00th=[ 211], 80.00th=[ 224], 90.00th=[ 243], 95.00th=[ 257], | 99.00th=[ 279], 99.50th=[ 284], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 88, max= 246, per=24.96%, avg=166.50, stdev=36.21, samples=62 iops : min= 22, max= 61, avg=41.18, stdev= 8.98, samples=62 lat (msec) : 20=0.04%, 50=0.04%, 100=0.47%, 250=92.97%, 500=6.48% cpu : usr=0.24%, sys=2.02%, ctx=4584, 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=181055: Sat Jul 4 01:21:34 2026 read: IOPS=40, BW=162KiB/s (166kB/s)(5060KiB/31263msec) slat (usec): min=87, max=63467, avg=13293.80, stdev=6947.43 clat (msec): min=14, max=316, avg=185.36, stdev=40.96 lat (msec): min=21, max=343, avg=198.66, stdev=42.32 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 126], 10.00th=[ 136], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 205], 80.00th=[ 220], 90.00th=[ 241], 95.00th=[ 257], | 99.00th=[ 296], 99.50th=[ 305], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 87, max= 224, per=25.10%, avg=160.65, stdev=32.40, samples=62 iops : min= 21, max= 56, avg=39.71, stdev= 8.12, samples=62 write: IOPS=41, BW=166KiB/s (170kB/s)(5180KiB/31263msec); 0 zone resets slat (usec): min=58, max=8909, avg=359.96, stdev=708.44 clat (msec): min=63, max=389, avg=190.33, stdev=38.45 lat (msec): min=63, max=389, avg=190.70, stdev=38.43 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 136], 10.00th=[ 146], 20.00th=[ 157], | 30.00th=[ 167], 40.00th=[ 178], 50.00th=[ 188], 60.00th=[ 199], | 70.00th=[ 209], 80.00th=[ 224], 90.00th=[ 243], 95.00th=[ 255], | 99.00th=[ 284], 99.50th=[ 292], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 96, max= 228, per=24.67%, avg=164.58, stdev=34.57, samples=62 iops : min= 24, max= 57, avg=40.68, stdev= 8.66, samples=62 lat (msec) : 20=0.04%, 50=0.04%, 100=0.66%, 250=92.34%, 500=6.91% cpu : usr=0.25%, sys=1.99%, ctx=4688, 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=641KiB/s (656kB/s), 159KiB/s-163KiB/s (163kB/s-167kB/s), io=19.6MiB (20.5MB), run=30906-31322msec WRITE: bw=667KiB/s (683kB/s), 166KiB/s-168KiB/s (170kB/s-172kB/s), io=20.4MiB (21.4MB), run=30906-31322msec 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=181064: Sat Jul 4 01:21:42 2026 read: IOPS=2, BW=109MiB/s (115MB/s)(40.0MiB/366msec) slat (nsec): min=23951k, max=23951k, avg=23950704.00, stdev= 0.00 clat (nsec): min=318222k, max=318222k, avg=318222495.00, stdev= 0.00 lat (nsec): min=342178k, max=342178k, avg=342177603.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 317], 10.00th=[ 317], 20.00th=[ 317], | 30.00th=[ 317], 40.00th=[ 317], 50.00th=[ 317], 60.00th=[ 317], | 70.00th=[ 317], 80.00th=[ 317], 90.00th=[ 317], 95.00th=[ 317], | 99.00th=[ 317], 99.50th=[ 317], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] lat (msec) : 500=100.00% cpu : usr=0.27%, sys=3.01%, ctx=7, 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=109MiB/s (115MB/s), 109MiB/s-109MiB/s (115MB/s-115MB/s), io=40.0MiB (41.9MB), run=366-366msec 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