== sanity test 398c: run fio to test AIO ================= 21:36:49 (1786757809) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.630978 s, 66.5 MB/s osc.lustre-OST0000-osc-ffff98add832b800.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=180598: Fri Aug 14 21:37:31 2026 write: IOPS=81, BW=325KiB/s (333kB/s)(10.0MiB/31518msec); 0 zone resets slat (usec): min=47, max=30414, avg=378.09, stdev=1153.24 clat (msec): min=23, max=353, avg=196.46, stdev=43.93 lat (msec): min=23, max=353, avg=196.84, stdev=43.91 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 133], 10.00th=[ 146], 20.00th=[ 161], | 30.00th=[ 171], 40.00th=[ 182], 50.00th=[ 190], 60.00th=[ 201], | 70.00th=[ 215], 80.00th=[ 234], 90.00th=[ 259], 95.00th=[ 279], | 99.00th=[ 305], 99.50th=[ 347], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 160, max= 516, per=25.02%, avg=324.24, stdev=61.74, samples=62 iops : min= 40, max= 129, avg=80.69, stdev=15.43, samples=62 lat (msec) : 50=0.12%, 100=0.16%, 250=86.99%, 500=12.73% cpu : usr=0.16%, sys=1.28%, ctx=2800, 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=180599: Fri Aug 14 21:37:31 2026 write: IOPS=81, BW=324KiB/s (332kB/s)(10.0MiB/31581msec); 0 zone resets slat (usec): min=37, max=27816, avg=358.96, stdev=1144.66 clat (msec): min=20, max=345, avg=196.17, stdev=44.19 lat (msec): min=20, max=345, avg=196.53, stdev=44.15 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 130], 10.00th=[ 142], 20.00th=[ 161], | 30.00th=[ 171], 40.00th=[ 182], 50.00th=[ 192], 60.00th=[ 201], | 70.00th=[ 213], 80.00th=[ 234], 90.00th=[ 257], 95.00th=[ 284], | 99.00th=[ 309], 99.50th=[ 317], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 347] bw ( KiB/s): min= 159, max= 508, per=24.90%, avg=322.73, stdev=67.98, samples=62 iops : min= 39, max= 127, avg=80.32, stdev=17.01, samples=62 lat (msec) : 50=0.12%, 100=0.62%, 250=86.60%, 500=12.66% cpu : usr=0.18%, sys=1.27%, ctx=2544, 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=180600: Fri Aug 14 21:37:31 2026 write: IOPS=81, BW=324KiB/s (332kB/s)(10.0MiB/31558msec); 0 zone resets slat (usec): min=39, max=13148, avg=360.46, stdev=952.83 clat (msec): min=25, max=356, avg=195.96, stdev=44.15 lat (msec): min=26, max=356, avg=196.32, stdev=44.18 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 131], 10.00th=[ 146], 20.00th=[ 161], | 30.00th=[ 171], 40.00th=[ 182], 50.00th=[ 190], 60.00th=[ 201], | 70.00th=[ 213], 80.00th=[ 230], 90.00th=[ 259], 95.00th=[ 279], | 99.00th=[ 313], 99.50th=[ 330], 99.90th=[ 347], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 192, max= 481, per=24.86%, avg=322.16, stdev=64.93, samples=62 iops : min= 48, max= 120, avg=80.16, stdev=16.26, samples=62 lat (msec) : 50=0.08%, 100=0.04%, 250=86.64%, 500=13.24% cpu : usr=0.14%, sys=1.05%, ctx=2323, 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=180601: Fri Aug 14 21:37:31 2026 write: IOPS=81, BW=326KiB/s (334kB/s)(10.0MiB/31387msec); 0 zone resets slat (usec): min=37, max=26838, avg=411.50, stdev=1393.71 clat (msec): min=34, max=368, avg=195.44, stdev=44.27 lat (msec): min=43, max=368, avg=195.85, stdev=44.20 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 131], 10.00th=[ 142], 20.00th=[ 159], | 30.00th=[ 171], 40.00th=[ 180], 50.00th=[ 190], 60.00th=[ 201], | 70.00th=[ 215], 80.00th=[ 234], 90.00th=[ 259], 95.00th=[ 275], | 99.00th=[ 305], 99.50th=[ 313], 99.90th=[ 347], 99.95th=[ 355], | 99.99th=[ 368] bw ( KiB/s): min= 160, max= 500, per=25.13%, avg=325.66, stdev=62.47, samples=62 iops : min= 40, max= 125, avg=81.03, stdev=15.61, samples=62 lat (msec) : 50=0.12%, 100=0.47%, 250=86.64%, 500=12.77% cpu : usr=0.14%, sys=1.28%, ctx=2600, 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=1297KiB/s (1328kB/s), 324KiB/s-326KiB/s (332kB/s-334kB/s), io=40.0MiB (41.9MB), run=31387-31581msec 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=180616: Fri Aug 14 21:38:16 2026 read: IOPS=34, BW=136KiB/s (139kB/s)(5048KiB/37064msec) slat (usec): min=3079, max=80499, avg=16126.89, stdev=9074.13 clat (msec): min=112, max=457, avg=218.42, stdev=49.99 lat (msec): min=119, max=476, avg=234.56, stdev=52.16 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 146], 10.00th=[ 159], 20.00th=[ 178], | 30.00th=[ 190], 40.00th=[ 203], 50.00th=[ 215], 60.00th=[ 226], | 70.00th=[ 239], 80.00th=[ 255], 90.00th=[ 284], 95.00th=[ 309], | 99.00th=[ 359], 99.50th=[ 384], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 56, max= 206, per=25.08%, avg=135.42, stdev=32.86, samples=73 iops : min= 14, max= 51, avg=33.40, stdev= 8.24, samples=73 write: IOPS=35, BW=140KiB/s (143kB/s)(5192KiB/37064msec); 0 zone resets slat (usec): min=51, max=30337, avg=401.53, stdev=1197.52 clat (msec): min=96, max=431, avg=224.25, stdev=49.25 lat (msec): min=96, max=431, avg=224.66, stdev=49.23 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 153], 10.00th=[ 165], 20.00th=[ 184], | 30.00th=[ 199], 40.00th=[ 209], 50.00th=[ 220], 60.00th=[ 230], | 70.00th=[ 243], 80.00th=[ 262], 90.00th=[ 292], 95.00th=[ 313], | 99.00th=[ 363], 99.50th=[ 376], 99.90th=[ 418], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 45, max= 239, per=24.87%, avg=139.75, stdev=39.90, samples=73 iops : min= 11, max= 59, avg=34.47, stdev=10.01, samples=73 lat (msec) : 100=0.08%, 250=75.90%, 500=24.02% cpu : usr=0.29%, sys=2.05%, ctx=4440, 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=180617: Fri Aug 14 21:38:16 2026 read: IOPS=33, BW=134KiB/s (137kB/s)(4976KiB/37122msec) slat (usec): min=3177, max=79808, avg=16689.68, stdev=9739.01 clat (msec): min=21, max=433, avg=219.43, stdev=50.96 lat (msec): min=52, max=466, avg=236.13, stdev=52.91 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 146], 10.00th=[ 161], 20.00th=[ 178], | 30.00th=[ 190], 40.00th=[ 199], 50.00th=[ 213], 60.00th=[ 228], | 70.00th=[ 245], 80.00th=[ 262], 90.00th=[ 288], 95.00th=[ 309], | 99.00th=[ 351], 99.50th=[ 372], 99.90th=[ 430], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 44, max= 208, per=24.70%, avg=133.40, stdev=29.63, samples=73 iops : min= 11, max= 52, avg=32.89, stdev= 7.46, samples=73 write: IOPS=35, BW=142KiB/s (145kB/s)(5264KiB/37122msec); 0 zone resets slat (usec): min=51, max=15411, avg=435.76, stdev=1151.66 clat (msec): min=104, max=409, avg=224.43, stdev=48.57 lat (msec): min=104, max=409, avg=224.87, stdev=48.60 clat percentiles (msec): | 1.00th=[ 131], 5.00th=[ 155], 10.00th=[ 167], 20.00th=[ 186], | 30.00th=[ 199], 40.00th=[ 209], 50.00th=[ 220], 60.00th=[ 230], | 70.00th=[ 243], 80.00th=[ 259], 90.00th=[ 288], 95.00th=[ 317], | 99.00th=[ 372], 99.50th=[ 380], 99.90th=[ 405], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 55, max= 239, per=25.18%, avg=141.49, stdev=39.06, samples=73 iops : min= 13, max= 59, avg=34.92, stdev= 9.85, samples=73 lat (msec) : 50=0.04%, 100=0.16%, 250=73.79%, 500=26.02% cpu : usr=0.22%, sys=1.98%, ctx=4458, 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=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=180618: Fri Aug 14 21:38:16 2026 read: IOPS=33, BW=134KiB/s (137kB/s)(4984KiB/37130msec) slat (usec): min=2758, max=71222, avg=17251.04, stdev=9790.63 clat (msec): min=21, max=410, avg=219.58, stdev=52.49 lat (msec): min=55, max=438, avg=236.84, stdev=54.82 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 138], 10.00th=[ 155], 20.00th=[ 178], | 30.00th=[ 192], 40.00th=[ 205], 50.00th=[ 215], 60.00th=[ 228], | 70.00th=[ 243], 80.00th=[ 266], 90.00th=[ 292], 95.00th=[ 313], | 99.00th=[ 355], 99.50th=[ 359], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 67, max= 191, per=24.77%, avg=133.74, stdev=29.51, samples=73 iops : min= 16, max= 47, avg=32.95, stdev= 7.45, samples=73 write: IOPS=35, BW=142KiB/s (145kB/s)(5256KiB/37130msec); 0 zone resets slat (usec): min=52, max=22481, avg=441.03, stdev=1287.34 clat (msec): min=21, max=381, avg=224.03, stdev=51.84 lat (msec): min=21, max=381, avg=224.47, stdev=51.83 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 148], 10.00th=[ 163], 20.00th=[ 180], | 30.00th=[ 192], 40.00th=[ 207], 50.00th=[ 222], 60.00th=[ 234], | 70.00th=[ 249], 80.00th=[ 266], 90.00th=[ 296], 95.00th=[ 321], | 99.00th=[ 359], 99.50th=[ 368], 99.90th=[ 376], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 62, max= 224, per=24.99%, avg=140.42, stdev=38.91, samples=73 iops : min= 15, max= 56, avg=34.64, stdev= 9.80, samples=73 lat (msec) : 50=0.12%, 100=0.27%, 250=71.91%, 500=27.70% cpu : usr=0.29%, sys=2.07%, ctx=4427, 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=180619: Fri Aug 14 21:38:16 2026 read: IOPS=34, BW=137KiB/s (140kB/s)(5060KiB/36899msec) slat (usec): min=89, max=72980, avg=16536.39, stdev=9811.05 clat (msec): min=19, max=428, avg=216.23, stdev=51.77 lat (msec): min=19, max=443, avg=232.77, stdev=54.42 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 144], 10.00th=[ 157], 20.00th=[ 174], | 30.00th=[ 188], 40.00th=[ 199], 50.00th=[ 211], 60.00th=[ 226], | 70.00th=[ 236], 80.00th=[ 255], 90.00th=[ 288], 95.00th=[ 309], | 99.00th=[ 359], 99.50th=[ 376], 99.90th=[ 397], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 63, max= 232, per=25.31%, avg=136.68, stdev=33.24, samples=72 iops : min= 15, max= 58, avg=33.71, stdev= 8.40, samples=72 write: IOPS=35, BW=140KiB/s (144kB/s)(5180KiB/36899msec); 0 zone resets slat (usec): min=51, max=24222, avg=568.31, stdev=1790.06 clat (msec): min=75, max=409, avg=227.43, stdev=51.00 lat (msec): min=75, max=410, avg=228.00, stdev=50.95 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 153], 10.00th=[ 169], 20.00th=[ 186], | 30.00th=[ 199], 40.00th=[ 211], 50.00th=[ 222], 60.00th=[ 236], | 70.00th=[ 249], 80.00th=[ 266], 90.00th=[ 300], 95.00th=[ 321], | 99.00th=[ 372], 99.50th=[ 388], 99.90th=[ 401], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 77, max= 230, per=24.86%, avg=139.69, stdev=30.38, samples=72 iops : min= 19, max= 57, avg=34.44, stdev= 7.66, samples=72 lat (msec) : 20=0.04%, 50=0.16%, 100=0.08%, 250=73.63%, 500=26.09% cpu : usr=0.26%, sys=1.95%, ctx=4500, 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=540KiB/s (553kB/s), 134KiB/s-137KiB/s (137kB/s-140kB/s), io=19.6MiB (20.5MB), run=36899-37130msec WRITE: bw=563KiB/s (576kB/s), 140KiB/s-142KiB/s (143kB/s-145kB/s), io=20.4MiB (21.4MB), run=36899-37130msec 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=180628: Fri Aug 14 21:38:25 2026 read: IOPS=2, BW=100MiB/s (105MB/s)(40.0MiB/399msec) slat (nsec): min=27665k, max=27665k, avg=27665241.00, stdev= 0.00 clat (nsec): min=352477k, max=352477k, avg=352476802.00, stdev= 0.00 lat (nsec): min=380146k, max=380146k, avg=380146191.00, 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=0.00%, sys=2.76%, ctx=3, majf=0, minf=8 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=100MiB/s (105MB/s), 100MiB/s-100MiB/s (105MB/s-105MB/s), io=40.0MiB (41.9MB), run=399-399msec 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