== sanity test 398c: run fio to test AIO ================= 18:54:10 (1787439250) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.721603 s, 58.1 MB/s osc.lustre-OST0000-osc-ffff9ec2b1d43000.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=180048: Sat Aug 22 18:54:48 2026 write: IOPS=103, BW=414KiB/s (424kB/s)(10.0MiB/24727msec); 0 zone resets slat (usec): min=21, max=6264, avg=113.35, stdev=371.88 clat (msec): min=74, max=293, avg=153.62, stdev=49.44 lat (msec): min=74, max=293, avg=153.74, stdev=49.42 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 91], 10.00th=[ 99], 20.00th=[ 110], | 30.00th=[ 124], 40.00th=[ 129], 50.00th=[ 144], 60.00th=[ 159], | 70.00th=[ 176], 80.00th=[ 197], 90.00th=[ 224], 95.00th=[ 259], | 99.00th=[ 288], 99.50th=[ 288], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 250, max= 640, per=24.79%, avg=410.55, stdev=111.19, samples=49 iops : min= 62, max= 160, avg=102.35, stdev=27.79, samples=49 lat (msec) : 100=11.09%, 250=82.42%, 500=6.48% cpu : usr=0.12%, sys=0.61%, ctx=697, majf=0, minf=7 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=180049: Sat Aug 22 18:54:48 2026 write: IOPS=103, BW=415KiB/s (425kB/s)(10.0MiB/24681msec); 0 zone resets slat (usec): min=21, max=18741, avg=153.35, stdev=577.48 clat (msec): min=6, max=368, avg=154.05, stdev=48.71 lat (msec): min=7, max=368, avg=154.21, stdev=48.74 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 89], 10.00th=[ 103], 20.00th=[ 114], | 30.00th=[ 123], 40.00th=[ 132], 50.00th=[ 144], 60.00th=[ 159], | 70.00th=[ 171], 80.00th=[ 199], 90.00th=[ 222], 95.00th=[ 243], | 99.00th=[ 296], 99.50th=[ 330], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 253, max= 640, per=24.97%, avg=413.55, stdev=113.62, samples=49 iops : min= 63, max= 160, avg=103.06, stdev=28.43, samples=49 lat (msec) : 10=0.04%, 50=0.31%, 100=7.73%, 250=87.89%, 500=4.02% cpu : usr=0.17%, sys=0.96%, ctx=2456, 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=180050: Sat Aug 22 18:54:48 2026 write: IOPS=103, BW=414KiB/s (424kB/s)(10.0MiB/24720msec); 0 zone resets slat (usec): min=21, max=12901, avg=140.73, stdev=538.40 clat (msec): min=23, max=322, avg=153.56, stdev=49.18 lat (msec): min=23, max=322, avg=153.70, stdev=49.17 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 89], 10.00th=[ 99], 20.00th=[ 113], | 30.00th=[ 122], 40.00th=[ 134], 50.00th=[ 144], 60.00th=[ 159], | 70.00th=[ 178], 80.00th=[ 194], 90.00th=[ 215], 95.00th=[ 243], | 99.00th=[ 309], 99.50th=[ 321], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 253, max= 640, per=24.82%, avg=411.06, stdev=106.47, samples=49 iops : min= 63, max= 160, avg=102.43, stdev=26.61, samples=49 lat (msec) : 50=0.16%, 100=10.23%, 250=85.47%, 500=4.14% cpu : usr=0.15%, sys=0.92%, ctx=1810, 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=180051: Sat Aug 22 18:54:48 2026 write: IOPS=103, BW=414KiB/s (424kB/s)(10.0MiB/24715msec); 0 zone resets slat (usec): min=21, max=43618, avg=239.07, stdev=1275.65 clat (msec): min=14, max=339, avg=154.08, stdev=48.71 lat (msec): min=14, max=340, avg=154.32, stdev=48.74 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 89], 10.00th=[ 100], 20.00th=[ 112], | 30.00th=[ 124], 40.00th=[ 133], 50.00th=[ 144], 60.00th=[ 161], | 70.00th=[ 178], 80.00th=[ 197], 90.00th=[ 220], 95.00th=[ 243], | 99.00th=[ 284], 99.50th=[ 317], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 250, max= 640, per=24.93%, avg=412.80, stdev=109.45, samples=49 iops : min= 62, max= 160, avg=102.86, stdev=27.34, samples=49 lat (msec) : 20=0.12%, 50=0.27%, 100=10.27%, 250=85.31%, 500=4.02% cpu : usr=0.32%, sys=1.19%, ctx=2549, 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 Run status group 0 (all jobs): WRITE: bw=1656KiB/s (1696kB/s), 414KiB/s-415KiB/s (424kB/s-425kB/s), io=40.0MiB (41.9MB), run=24681-24727msec 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=180065: Sat Aug 22 18:55:25 2026 read: IOPS=42, BW=171KiB/s (175kB/s)(5048KiB/29454msec) slat (usec): min=23, max=183965, avg=13098.73, stdev=10953.27 clat (msec): min=19, max=589, avg=177.03, stdev=81.72 lat (msec): min=25, max=606, avg=190.13, stdev=86.49 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 87], 10.00th=[ 99], 20.00th=[ 114], | 30.00th=[ 127], 40.00th=[ 144], 50.00th=[ 159], 60.00th=[ 174], | 70.00th=[ 197], 80.00th=[ 230], 90.00th=[ 284], 95.00th=[ 334], | 99.00th=[ 464], 99.50th=[ 493], 99.90th=[ 567], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 55, max= 375, per=25.25%, avg=170.43, stdev=63.17, samples=58 iops : min= 13, max= 93, avg=42.12, stdev=15.85, samples=58 write: IOPS=44, BW=176KiB/s (181kB/s)(5192KiB/29454msec); 0 zone resets slat (usec): min=22, max=17661, avg=202.03, stdev=843.23 clat (msec): min=34, max=516, avg=177.51, stdev=74.09 lat (msec): min=35, max=516, avg=177.72, stdev=74.08 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 92], 10.00th=[ 103], 20.00th=[ 122], | 30.00th=[ 136], 40.00th=[ 146], 50.00th=[ 161], 60.00th=[ 178], | 70.00th=[ 197], 80.00th=[ 224], 90.00th=[ 275], 95.00th=[ 330], | 99.00th=[ 439], 99.50th=[ 489], 99.90th=[ 510], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 39, max= 348, per=25.02%, avg=175.90, stdev=67.89, samples=58 iops : min= 9, max= 87, avg=43.52, stdev=17.04, samples=58 lat (msec) : 20=0.04%, 50=0.82%, 100=9.22%, 250=75.90%, 500=13.67% lat (msec) : 750=0.35% cpu : usr=0.25%, sys=1.68%, ctx=4258, 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=180066: Sat Aug 22 18:55:25 2026 read: IOPS=42, BW=168KiB/s (172kB/s)(4976KiB/29569msec) slat (usec): min=38, max=86158, avg=12728.65, stdev=9017.50 clat (msec): min=54, max=617, avg=175.45, stdev=76.69 lat (msec): min=71, max=640, avg=188.19, stdev=80.51 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 91], 10.00th=[ 100], 20.00th=[ 116], | 30.00th=[ 132], 40.00th=[ 144], 50.00th=[ 159], 60.00th=[ 171], | 70.00th=[ 190], 80.00th=[ 222], 90.00th=[ 279], 95.00th=[ 326], | 99.00th=[ 447], 99.50th=[ 489], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 47, max= 359, per=24.82%, avg=167.52, stdev=62.64, samples=58 iops : min= 11, max= 89, avg=41.41, stdev=15.72, samples=58 write: IOPS=44, BW=178KiB/s (182kB/s)(5264KiB/29569msec); 0 zone resets slat (usec): min=22, max=13631, avg=172.31, stdev=628.95 clat (msec): min=63, max=615, avg=180.37, stdev=78.28 lat (msec): min=63, max=615, avg=180.55, stdev=78.25 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 94], 10.00th=[ 103], 20.00th=[ 123], | 30.00th=[ 136], 40.00th=[ 146], 50.00th=[ 159], 60.00th=[ 178], | 70.00th=[ 199], 80.00th=[ 226], 90.00th=[ 284], 95.00th=[ 334], | 99.00th=[ 456], 99.50th=[ 518], 99.90th=[ 550], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 63, max= 335, per=25.35%, avg=178.24, stdev=68.19, samples=58 iops : min= 15, max= 83, avg=44.10, stdev=17.12, samples=58 lat (msec) : 100=9.65%, 250=75.82%, 500=14.02%, 750=0.51% cpu : usr=0.23%, sys=1.54%, ctx=3919, 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=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=180067: Sat Aug 22 18:55:25 2026 read: IOPS=41, BW=168KiB/s (172kB/s)(4984KiB/29693msec) slat (msec): min=2, max=103, avg=13.20, stdev= 9.55 clat (msec): min=11, max=566, avg=175.63, stdev=77.98 lat (msec): min=24, max=587, avg=188.83, stdev=82.21 clat percentiles (msec): | 1.00th=[ 68], 5.00th=[ 87], 10.00th=[ 99], 20.00th=[ 115], | 30.00th=[ 129], 40.00th=[ 146], 50.00th=[ 161], 60.00th=[ 176], | 70.00th=[ 194], 80.00th=[ 222], 90.00th=[ 275], 95.00th=[ 326], | 99.00th=[ 460], 99.50th=[ 481], 99.90th=[ 558], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 39, max= 359, per=24.75%, avg=167.09, stdev=63.34, samples=58 iops : min= 9, max= 89, avg=41.29, stdev=15.89, samples=58 write: IOPS=44, BW=177KiB/s (181kB/s)(5256KiB/29693msec); 0 zone resets slat (usec): min=28, max=14138, avg=176.41, stdev=650.76 clat (msec): min=17, max=544, avg=180.95, stdev=75.21 lat (msec): min=17, max=544, avg=181.13, stdev=75.20 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 92], 10.00th=[ 104], 20.00th=[ 124], | 30.00th=[ 136], 40.00th=[ 150], 50.00th=[ 167], 60.00th=[ 184], | 70.00th=[ 203], 80.00th=[ 228], 90.00th=[ 271], 95.00th=[ 334], | 99.00th=[ 443], 99.50th=[ 464], 99.90th=[ 510], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 39, max= 335, per=24.89%, avg=174.98, stdev=63.04, samples=58 iops : min= 9, max= 83, avg=43.28, stdev=15.79, samples=58 lat (msec) : 20=0.16%, 50=0.08%, 100=9.38%, 250=76.72%, 500=13.52% lat (msec) : 750=0.16% cpu : usr=0.22%, sys=1.52%, ctx=3950, 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=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=180068: Sat Aug 22 18:55:25 2026 read: IOPS=42, BW=171KiB/s (175kB/s)(5060KiB/29635msec) slat (usec): min=52, max=111277, avg=12968.14, stdev=9599.35 clat (msec): min=61, max=568, avg=176.09, stdev=77.63 lat (msec): min=72, max=591, avg=189.06, stdev=81.96 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 88], 10.00th=[ 99], 20.00th=[ 115], | 30.00th=[ 130], 40.00th=[ 144], 50.00th=[ 159], 60.00th=[ 174], | 70.00th=[ 197], 80.00th=[ 224], 90.00th=[ 271], 95.00th=[ 326], | 99.00th=[ 477], 99.50th=[ 493], 99.90th=[ 550], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 47, max= 375, per=25.29%, avg=170.69, stdev=62.30, samples=58 iops : min= 11, max= 93, avg=42.21, stdev=15.62, samples=58 write: IOPS=43, BW=175KiB/s (179kB/s)(5180KiB/29635msec); 0 zone resets slat (usec): min=24, max=20140, avg=194.10, stdev=834.92 clat (msec): min=66, max=627, avg=180.03, stdev=75.53 lat (msec): min=66, max=627, avg=180.22, stdev=75.54 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 94], 10.00th=[ 105], 20.00th=[ 122], | 30.00th=[ 138], 40.00th=[ 150], 50.00th=[ 165], 60.00th=[ 180], | 70.00th=[ 197], 80.00th=[ 222], 90.00th=[ 271], 95.00th=[ 342], | 99.00th=[ 451], 99.50th=[ 481], 99.90th=[ 523], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 55, max= 351, per=24.78%, avg=174.22, stdev=64.45, samples=58 iops : min= 13, max= 87, avg=43.10, stdev=16.16, samples=58 lat (msec) : 100=9.88%, 250=76.33%, 500=13.44%, 750=0.35% cpu : usr=0.25%, sys=1.50%, ctx=3942, 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=676KiB/s (692kB/s), 168KiB/s-171KiB/s (172kB/s-175kB/s), io=19.6MiB (20.5MB), run=29454-29693msec WRITE: bw=704KiB/s (720kB/s), 175KiB/s-178KiB/s (179kB/s-182kB/s), io=20.4MiB (21.4MB), run=29454-29693msec 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=180077: Sat Aug 22 18:55:37 2026 read: IOPS=2, BW=97.8MiB/s (103MB/s)(40.0MiB/409msec) slat (nsec): min=19638k, max=19638k, avg=19638419.00, stdev= 0.00 clat (nsec): min=373262k, max=373262k, avg=373261532.00, stdev= 0.00 lat (nsec): min=392905k, max=392905k, avg=392904601.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 372], 5.00th=[ 372], 10.00th=[ 372], 20.00th=[ 372], | 30.00th=[ 372], 40.00th=[ 372], 50.00th=[ 372], 60.00th=[ 372], | 70.00th=[ 372], 80.00th=[ 372], 90.00th=[ 372], 95.00th=[ 372], | 99.00th=[ 372], 99.50th=[ 372], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.19%, ctx=3, 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=97.8MiB/s (103MB/s), 97.8MiB/s-97.8MiB/s (103MB/s-103MB/s), io=40.0MiB (41.9MB), run=409-409msec 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