== sanity test 398c: run fio to test AIO ================= 07:12:37 (1769083957) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.296619 s, 141 MB/s osc.lustre-OST0000-osc-ffff972620cb8000.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=184111: Thu Jan 22 07:13:02 2026 write: IOPS=143, BW=572KiB/s (586kB/s)(10.0MiB/17901msec); 0 zone resets slat (usec): min=23, max=6336, avg=157.18, stdev=391.34 clat (msec): min=19, max=256, avg=110.92, stdev=30.23 lat (msec): min=19, max=256, avg=111.08, stdev=30.24 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 67], 10.00th=[ 75], 20.00th=[ 86], | 30.00th=[ 93], 40.00th=[ 103], 50.00th=[ 109], 60.00th=[ 116], | 70.00th=[ 127], 80.00th=[ 136], 90.00th=[ 150], 95.00th=[ 163], | 99.00th=[ 186], 99.50th=[ 218], 99.90th=[ 243], 99.95th=[ 245], | 99.99th=[ 257] bw ( KiB/s): min= 396, max= 777, per=24.99%, avg=571.51, stdev=109.75, samples=35 iops : min= 99, max= 194, avg=142.63, stdev=27.44, samples=35 lat (msec) : 20=0.04%, 50=1.37%, 100=36.99%, 250=61.56%, 500=0.04% cpu : usr=0.30%, sys=1.29%, ctx=2428, 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=184112: Thu Jan 22 07:13:02 2026 write: IOPS=143, BW=572KiB/s (586kB/s)(10.0MiB/17900msec); 0 zone resets slat (usec): min=25, max=9000, avg=199.70, stdev=552.98 clat (msec): min=19, max=242, avg=110.98, stdev=30.64 lat (msec): min=19, max=242, avg=111.18, stdev=30.67 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 68], 10.00th=[ 74], 20.00th=[ 86], | 30.00th=[ 91], 40.00th=[ 101], 50.00th=[ 109], 60.00th=[ 118], | 70.00th=[ 126], 80.00th=[ 136], 90.00th=[ 150], 95.00th=[ 165], | 99.00th=[ 188], 99.50th=[ 228], 99.90th=[ 232], 99.95th=[ 232], | 99.99th=[ 243] bw ( KiB/s): min= 416, max= 801, per=24.95%, avg=570.63, stdev=107.31, samples=35 iops : min= 104, max= 200, avg=142.37, stdev=26.78, samples=35 lat (msec) : 20=0.04%, 50=1.05%, 100=38.59%, 250=60.31% cpu : usr=0.21%, sys=1.67%, ctx=2957, 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=184113: Thu Jan 22 07:13:02 2026 write: IOPS=142, BW=572KiB/s (586kB/s)(10.0MiB/17903msec); 0 zone resets slat (usec): min=23, max=41532, avg=212.59, stdev=977.95 clat (msec): min=9, max=264, avg=111.02, stdev=30.73 lat (msec): min=10, max=265, avg=111.23, stdev=30.71 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 67], 10.00th=[ 77], 20.00th=[ 85], | 30.00th=[ 93], 40.00th=[ 102], 50.00th=[ 108], 60.00th=[ 116], | 70.00th=[ 128], 80.00th=[ 138], 90.00th=[ 150], 95.00th=[ 157], | 99.00th=[ 180], 99.50th=[ 253], 99.90th=[ 266], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 389, max= 809, per=25.00%, avg=571.71, stdev=122.45, samples=35 iops : min= 97, max= 202, avg=142.66, stdev=30.60, samples=35 lat (msec) : 10=0.04%, 20=0.04%, 50=1.33%, 100=37.11%, 250=60.94% lat (msec) : 500=0.55% cpu : usr=0.26%, sys=1.56%, ctx=2781, 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=184114: Thu Jan 22 07:13:02 2026 write: IOPS=144, BW=577KiB/s (591kB/s)(10.0MiB/17734msec); 0 zone resets slat (usec): min=24, max=14138, avg=216.68, stdev=670.71 clat (msec): min=12, max=281, avg=110.52, stdev=30.95 lat (msec): min=12, max=281, avg=110.74, stdev=30.94 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 68], 10.00th=[ 75], 20.00th=[ 85], | 30.00th=[ 92], 40.00th=[ 101], 50.00th=[ 108], 60.00th=[ 117], | 70.00th=[ 125], 80.00th=[ 136], 90.00th=[ 150], 95.00th=[ 165], | 99.00th=[ 186], 99.50th=[ 239], 99.90th=[ 253], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 416, max= 888, per=25.14%, avg=574.97, stdev=127.99, samples=35 iops : min= 104, max= 222, avg=143.46, stdev=31.96, samples=35 lat (msec) : 20=0.04%, 50=0.98%, 100=38.52%, 250=60.35%, 500=0.12% cpu : usr=0.32%, sys=1.61%, ctx=2956, 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=2288KiB/s (2343kB/s), 572KiB/s-577KiB/s (586kB/s-591kB/s), io=40.0MiB (41.9MB), run=17734-17903msec 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=184127: Thu Jan 22 07:13:30 2026 read: IOPS=57, BW=231KiB/s (237kB/s)(5048KiB/21846msec) slat (usec): min=132, max=41957, avg=9852.44, stdev=5104.46 clat (msec): min=21, max=273, avg=127.81, stdev=32.27 lat (msec): min=21, max=278, avg=137.67, stdev=33.28 clat percentiles (msec): | 1.00th=[ 65], 5.00th=[ 81], 10.00th=[ 89], 20.00th=[ 102], | 30.00th=[ 111], 40.00th=[ 118], 50.00th=[ 125], 60.00th=[ 134], | 70.00th=[ 142], 80.00th=[ 153], 90.00th=[ 169], 95.00th=[ 184], | 99.00th=[ 213], 99.50th=[ 220], 99.90th=[ 249], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 152, max= 368, per=24.94%, avg=228.91, stdev=45.77, samples=43 iops : min= 38, max= 92, avg=56.79, stdev=11.49, samples=43 write: IOPS=59, BW=238KiB/s (243kB/s)(5192KiB/21846msec); 0 zone resets slat (usec): min=30, max=14263, avg=226.58, stdev=710.05 clat (msec): min=21, max=260, avg=133.04, stdev=32.75 lat (msec): min=21, max=260, avg=133.27, stdev=32.75 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 87], 10.00th=[ 95], 20.00th=[ 105], | 30.00th=[ 114], 40.00th=[ 124], 50.00th=[ 131], 60.00th=[ 140], | 70.00th=[ 146], 80.00th=[ 159], 90.00th=[ 176], 95.00th=[ 192], | 99.00th=[ 228], 99.50th=[ 239], 99.90th=[ 255], 99.95th=[ 262], | 99.99th=[ 262] bw ( KiB/s): min= 151, max= 360, per=24.75%, avg=236.58, stdev=49.54, samples=43 iops : min= 37, max= 90, avg=58.72, stdev=12.49, samples=43 lat (msec) : 50=0.51%, 100=17.15%, 250=82.11%, 500=0.23% cpu : usr=0.35%, sys=2.44%, ctx=4587, 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=184128: Thu Jan 22 07:13:30 2026 read: IOPS=57, BW=228KiB/s (234kB/s)(4976KiB/21803msec) slat (usec): min=2267, max=50626, avg=10078.60, stdev=5250.29 clat (msec): min=57, max=261, avg=128.21, stdev=31.86 lat (msec): min=64, max=267, avg=138.30, stdev=33.07 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 83], 10.00th=[ 91], 20.00th=[ 101], | 30.00th=[ 110], 40.00th=[ 118], 50.00th=[ 126], 60.00th=[ 134], | 70.00th=[ 142], 80.00th=[ 155], 90.00th=[ 171], 95.00th=[ 184], | 99.00th=[ 224], 99.50th=[ 228], 99.90th=[ 253], 99.95th=[ 262], | 99.99th=[ 262] bw ( KiB/s): min= 126, max= 344, per=24.73%, avg=227.02, stdev=47.94, samples=43 iops : min= 31, max= 86, avg=56.33, stdev=12.04, samples=43 write: IOPS=60, BW=241KiB/s (247kB/s)(5264KiB/21803msec); 0 zone resets slat (usec): min=30, max=8109, avg=205.23, stdev=515.75 clat (msec): min=23, max=253, avg=132.65, stdev=31.86 lat (msec): min=23, max=253, avg=132.86, stdev=31.85 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 84], 10.00th=[ 94], 20.00th=[ 107], | 30.00th=[ 116], 40.00th=[ 124], 50.00th=[ 130], 60.00th=[ 138], | 70.00th=[ 146], 80.00th=[ 157], 90.00th=[ 178], 95.00th=[ 194], | 99.00th=[ 222], 99.50th=[ 230], 99.90th=[ 253], 99.95th=[ 255], | 99.99th=[ 255] bw ( KiB/s): min= 152, max= 416, per=25.22%, avg=241.07, stdev=50.97, samples=43 iops : min= 38, max= 104, avg=59.86, stdev=12.79, samples=43 lat (msec) : 50=0.04%, 100=16.80%, 250=83.01%, 500=0.16% cpu : usr=0.32%, sys=2.44%, ctx=4384, 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=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=184129: Thu Jan 22 07:13:30 2026 read: IOPS=57, BW=229KiB/s (235kB/s)(4984KiB/21748msec) slat (usec): min=54, max=38666, avg=9964.82, stdev=5251.69 clat (msec): min=12, max=255, avg=127.71, stdev=33.38 lat (msec): min=21, max=267, avg=137.68, stdev=34.82 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 81], 10.00th=[ 89], 20.00th=[ 100], | 30.00th=[ 108], 40.00th=[ 117], 50.00th=[ 125], 60.00th=[ 133], | 70.00th=[ 142], 80.00th=[ 155], 90.00th=[ 174], 95.00th=[ 188], | 99.00th=[ 218], 99.50th=[ 224], 99.90th=[ 251], 99.95th=[ 255], | 99.99th=[ 255] bw ( KiB/s): min= 151, max= 424, per=24.97%, avg=229.21, stdev=52.89, samples=43 iops : min= 37, max= 106, avg=56.88, stdev=13.25, samples=43 write: IOPS=60, BW=242KiB/s (247kB/s)(5256KiB/21748msec); 0 zone resets slat (usec): min=27, max=7003, avg=213.86, stdev=516.48 clat (msec): min=21, max=273, avg=132.60, stdev=31.69 lat (msec): min=22, max=273, avg=132.82, stdev=31.68 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 88], 10.00th=[ 95], 20.00th=[ 107], | 30.00th=[ 115], 40.00th=[ 123], 50.00th=[ 129], 60.00th=[ 136], | 70.00th=[ 146], 80.00th=[ 159], 90.00th=[ 178], 95.00th=[ 190], | 99.00th=[ 220], 99.50th=[ 234], 99.90th=[ 271], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 157, max= 368, per=25.17%, avg=240.65, stdev=46.26, samples=43 iops : min= 39, max= 92, avg=59.74, stdev=11.65, samples=43 lat (msec) : 20=0.04%, 50=0.23%, 100=17.50%, 250=81.95%, 500=0.27% cpu : usr=0.34%, sys=2.52%, ctx=4285, 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=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=184130: Thu Jan 22 07:13:30 2026 read: IOPS=58, BW=233KiB/s (239kB/s)(5060KiB/21682msec) slat (usec): min=46, max=40162, avg=9906.52, stdev=5430.08 clat (msec): min=19, max=238, avg=127.81, stdev=31.29 lat (msec): min=20, max=251, avg=137.72, stdev=32.74 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 84], 10.00th=[ 92], 20.00th=[ 102], | 30.00th=[ 111], 40.00th=[ 118], 50.00th=[ 126], 60.00th=[ 133], | 70.00th=[ 142], 80.00th=[ 153], 90.00th=[ 167], 95.00th=[ 184], | 99.00th=[ 218], 99.50th=[ 224], 99.90th=[ 236], 99.95th=[ 239], | 99.99th=[ 239] bw ( KiB/s): min= 143, max= 360, per=25.27%, avg=232.00, stdev=43.32, samples=43 iops : min= 35, max= 90, avg=57.60, stdev=10.92, samples=43 write: IOPS=59, BW=239KiB/s (245kB/s)(5180KiB/21682msec); 0 zone resets slat (usec): min=28, max=9333, avg=209.28, stdev=466.22 clat (msec): min=41, max=236, avg=132.76, stdev=31.05 lat (msec): min=41, max=236, avg=132.97, stdev=31.05 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 88], 10.00th=[ 96], 20.00th=[ 106], | 30.00th=[ 113], 40.00th=[ 123], 50.00th=[ 131], 60.00th=[ 138], | 70.00th=[ 146], 80.00th=[ 159], 90.00th=[ 178], 95.00th=[ 192], | 99.00th=[ 218], 99.50th=[ 224], 99.90th=[ 234], 99.95th=[ 236], | 99.99th=[ 236] bw ( KiB/s): min= 127, max= 360, per=24.84%, avg=237.47, stdev=50.09, samples=43 iops : min= 31, max= 90, avg=58.93, stdev=12.51, samples=43 lat (msec) : 20=0.04%, 50=0.16%, 100=15.94%, 250=83.87% cpu : usr=0.34%, sys=2.23%, ctx=4571, 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=919KiB/s (941kB/s), 228KiB/s-233KiB/s (234kB/s-239kB/s), io=19.6MiB (20.5MB), run=21682-21846msec WRITE: bw=956KiB/s (979kB/s), 238KiB/s-242KiB/s (243kB/s-247kB/s), io=20.4MiB (21.4MB), run=21682-21846msec 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=184136: Thu Jan 22 07:13:37 2026 read: IOPS=2, BW=98.8MiB/s (104MB/s)(40.0MiB/405msec) slat (nsec): min=25390k, max=25390k, avg=25390391.00, stdev= 0.00 clat (nsec): min=353624k, max=353624k, avg=353623805.00, stdev= 0.00 lat (nsec): min=379019k, max=379019k, avg=379018866.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 355], 10.00th=[ 355], 20.00th=[ 355], | 30.00th=[ 355], 40.00th=[ 355], 50.00th=[ 355], 60.00th=[ 355], | 70.00th=[ 355], 80.00th=[ 355], 90.00th=[ 355], 95.00th=[ 355], | 99.00th=[ 355], 99.50th=[ 355], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] lat (msec) : 500=100.00% cpu : usr=0.25%, sys=2.48%, 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=98.8MiB/s (104MB/s), 98.8MiB/s-98.8MiB/s (104MB/s-104MB/s), io=40.0MiB (41.9MB), run=405-405msec 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