== sanity test 398c: run fio to test AIO ================= 00:13:08 (1789445588) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.434724 s, 96.5 MB/s osc.lustre-OST0000-osc-ffff997e43845800.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=180144: Tue Sep 15 00:13:48 2026 write: IOPS=80, BW=320KiB/s (328kB/s)(10.0MiB/31953msec); 0 zone resets slat (usec): min=25, max=15997, avg=204.16, stdev=734.64 clat (msec): min=53, max=402, avg=198.61, stdev=53.00 lat (msec): min=53, max=402, avg=198.82, stdev=52.98 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 129], 10.00th=[ 138], 20.00th=[ 153], | 30.00th=[ 165], 40.00th=[ 178], 50.00th=[ 190], 60.00th=[ 207], | 70.00th=[ 222], 80.00th=[ 243], 90.00th=[ 271], 95.00th=[ 300], | 99.00th=[ 351], 99.50th=[ 363], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 127, max= 487, per=24.91%, avg=319.06, stdev=79.31, samples=63 iops : min= 31, max= 121, avg=79.37, stdev=19.80, samples=63 lat (msec) : 100=0.23%, 250=83.83%, 500=15.94% cpu : usr=0.15%, sys=0.76%, ctx=1959, 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=180145: Tue Sep 15 00:13:48 2026 write: IOPS=80, BW=321KiB/s (329kB/s)(10.0MiB/31891msec); 0 zone resets slat (usec): min=25, max=9975, avg=179.87, stdev=539.40 clat (msec): min=12, max=388, avg=198.69, stdev=55.11 lat (msec): min=12, max=388, avg=198.87, stdev=55.05 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 123], 10.00th=[ 136], 20.00th=[ 153], | 30.00th=[ 165], 40.00th=[ 178], 50.00th=[ 190], 60.00th=[ 203], | 70.00th=[ 220], 80.00th=[ 243], 90.00th=[ 275], 95.00th=[ 309], | 99.00th=[ 355], 99.50th=[ 355], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 167, max= 459, per=24.98%, avg=320.05, stdev=69.26, samples=63 iops : min= 41, max= 114, avg=79.60, stdev=17.27, samples=63 lat (msec) : 20=0.04%, 50=0.23%, 100=0.62%, 250=83.24%, 500=15.86% cpu : usr=0.13%, sys=0.73%, ctx=1486, 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=180146: Tue Sep 15 00:13:48 2026 write: IOPS=80, BW=322KiB/s (330kB/s)(10.0MiB/31776msec); 0 zone resets slat (usec): min=25, max=15809, avg=202.59, stdev=714.15 clat (msec): min=36, max=384, avg=198.19, stdev=55.18 lat (msec): min=36, max=384, avg=198.40, stdev=55.15 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 125], 10.00th=[ 138], 20.00th=[ 153], | 30.00th=[ 167], 40.00th=[ 180], 50.00th=[ 190], 60.00th=[ 203], | 70.00th=[ 220], 80.00th=[ 241], 90.00th=[ 271], 95.00th=[ 305], | 99.00th=[ 359], 99.50th=[ 376], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 151, max= 559, per=25.00%, avg=320.19, stdev=76.91, samples=63 iops : min= 37, max= 139, avg=79.62, stdev=19.18, samples=63 lat (msec) : 50=0.04%, 100=1.76%, 250=81.13%, 500=17.07% cpu : usr=0.13%, sys=0.72%, ctx=1844, 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=180147: Tue Sep 15 00:13:48 2026 write: IOPS=80, BW=320KiB/s (328kB/s)(10.0MiB/31953msec); 0 zone resets slat (usec): min=26, max=14294, avg=190.30, stdev=700.18 clat (msec): min=43, max=392, avg=198.84, stdev=56.04 lat (msec): min=43, max=392, avg=199.03, stdev=56.01 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 129], 10.00th=[ 138], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 190], 60.00th=[ 203], | 70.00th=[ 224], 80.00th=[ 249], 90.00th=[ 275], 95.00th=[ 309], | 99.00th=[ 363], 99.50th=[ 372], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 159, max= 509, per=24.85%, avg=318.33, stdev=76.80, samples=63 iops : min= 39, max= 127, avg=79.17, stdev=19.18, samples=63 lat (msec) : 50=0.04%, 100=0.39%, 250=80.04%, 500=19.53% cpu : usr=0.20%, sys=0.81%, ctx=1751, 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=1282KiB/s (1313kB/s), 320KiB/s-322KiB/s (328kB/s-330kB/s), io=40.0MiB (41.9MB), run=31776-31953msec 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=180165: Tue Sep 15 00:14:34 2026 read: IOPS=35, BW=143KiB/s (146kB/s)(5048KiB/35417msec) slat (usec): min=3028, max=73669, avg=15332.92, stdev=8932.82 clat (msec): min=91, max=422, avg=207.88, stdev=53.36 lat (msec): min=95, max=448, avg=223.22, stdev=55.81 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 133], 10.00th=[ 146], 20.00th=[ 163], | 30.00th=[ 176], 40.00th=[ 190], 50.00th=[ 203], 60.00th=[ 215], | 70.00th=[ 230], 80.00th=[ 247], 90.00th=[ 279], 95.00th=[ 309], | 99.00th=[ 372], 99.50th=[ 380], 99.90th=[ 397], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 41, max= 232, per=25.05%, avg=141.53, stdev=37.88, samples=70 iops : min= 10, max= 58, avg=34.93, stdev= 9.57, samples=70 write: IOPS=36, BW=147KiB/s (150kB/s)(5192KiB/35417msec); 0 zone resets slat (usec): min=30, max=10033, avg=268.10, stdev=828.33 clat (msec): min=91, max=434, avg=215.14, stdev=47.98 lat (msec): min=91, max=434, avg=215.41, stdev=47.97 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 144], 10.00th=[ 157], 20.00th=[ 176], | 30.00th=[ 188], 40.00th=[ 201], 50.00th=[ 213], 60.00th=[ 224], | 70.00th=[ 234], 80.00th=[ 251], 90.00th=[ 279], 95.00th=[ 305], | 99.00th=[ 347], 99.50th=[ 368], 99.90th=[ 414], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 34, max= 248, per=24.82%, avg=146.20, stdev=38.10, samples=70 iops : min= 8, max= 62, avg=36.10, stdev= 9.56, samples=70 lat (msec) : 100=0.20%, 250=80.43%, 500=19.38% cpu : usr=0.21%, sys=1.52%, ctx=4159, 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=180166: Tue Sep 15 00:14:34 2026 read: IOPS=35, BW=140KiB/s (144kB/s)(4976KiB/35457msec) slat (usec): min=2995, max=88607, avg=15069.94, stdev=8773.78 clat (msec): min=32, max=449, avg=210.74, stdev=54.77 lat (msec): min=47, max=469, avg=225.82, stdev=56.84 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 130], 10.00th=[ 144], 20.00th=[ 165], | 30.00th=[ 182], 40.00th=[ 194], 50.00th=[ 207], 60.00th=[ 220], | 70.00th=[ 234], 80.00th=[ 251], 90.00th=[ 284], 95.00th=[ 309], | 99.00th=[ 363], 99.50th=[ 384], 99.90th=[ 435], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 34, max= 240, per=24.66%, avg=139.36, stdev=35.56, samples=70 iops : min= 8, max= 60, avg=34.39, stdev= 8.97, samples=70 write: IOPS=37, BW=148KiB/s (152kB/s)(5264KiB/35457msec); 0 zone resets slat (usec): min=29, max=16142, avg=240.90, stdev=873.80 clat (msec): min=97, max=409, avg=213.58, stdev=52.16 lat (msec): min=97, max=413, avg=213.83, stdev=52.17 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 138], 10.00th=[ 153], 20.00th=[ 169], | 30.00th=[ 184], 40.00th=[ 194], 50.00th=[ 209], 60.00th=[ 222], | 70.00th=[ 239], 80.00th=[ 257], 90.00th=[ 284], 95.00th=[ 309], | 99.00th=[ 372], 99.50th=[ 397], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 64, max= 280, per=25.15%, avg=148.11, stdev=41.86, samples=70 iops : min= 16, max= 70, avg=36.57, stdev=10.51, samples=70 lat (msec) : 50=0.04%, 100=0.12%, 250=78.09%, 500=21.76% cpu : usr=0.23%, sys=1.40%, ctx=3866, 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=180167: Tue Sep 15 00:14:34 2026 read: IOPS=35, BW=141KiB/s (144kB/s)(4984KiB/35457msec) slat (msec): min=3, max=268, avg=15.48, stdev=11.46 clat (msec): min=13, max=567, avg=210.68, stdev=58.24 lat (msec): min=19, max=613, avg=226.18, stdev=60.94 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 134], 10.00th=[ 148], 20.00th=[ 165], | 30.00th=[ 178], 40.00th=[ 190], 50.00th=[ 201], 60.00th=[ 215], | 70.00th=[ 232], 80.00th=[ 253], 90.00th=[ 292], 95.00th=[ 321], | 99.00th=[ 384], 99.50th=[ 401], 99.90th=[ 542], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 48, max= 232, per=24.71%, avg=139.60, stdev=35.62, samples=70 iops : min= 12, max= 58, avg=34.44, stdev= 8.99, samples=70 write: IOPS=37, BW=148KiB/s (152kB/s)(5256KiB/35457msec); 0 zone resets slat (usec): min=32, max=12918, avg=320.46, stdev=1025.58 clat (msec): min=57, max=515, avg=213.70, stdev=55.91 lat (msec): min=58, max=515, avg=214.02, stdev=55.97 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 140], 10.00th=[ 153], 20.00th=[ 169], | 30.00th=[ 182], 40.00th=[ 192], 50.00th=[ 207], 60.00th=[ 222], | 70.00th=[ 236], 80.00th=[ 257], 90.00th=[ 284], 95.00th=[ 313], | 99.00th=[ 393], 99.50th=[ 418], 99.90th=[ 493], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 55, max= 251, per=24.89%, avg=146.60, stdev=44.16, samples=70 iops : min= 13, max= 62, avg=36.17, stdev=11.04, samples=70 lat (msec) : 20=0.04%, 100=0.62%, 250=77.42%, 500=21.76%, 750=0.16% cpu : usr=0.27%, sys=1.58%, ctx=4413, 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=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=180168: Tue Sep 15 00:14:34 2026 read: IOPS=35, BW=143KiB/s (147kB/s)(5060KiB/35308msec) slat (usec): min=46, max=65989, avg=15218.89, stdev=8710.79 clat (msec): min=23, max=426, avg=208.89, stdev=53.98 lat (msec): min=24, max=437, avg=224.12, stdev=56.02 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 132], 10.00th=[ 146], 20.00th=[ 163], | 30.00th=[ 180], 40.00th=[ 190], 50.00th=[ 203], 60.00th=[ 220], | 70.00th=[ 232], 80.00th=[ 251], 90.00th=[ 279], 95.00th=[ 309], | 99.00th=[ 363], 99.50th=[ 376], 99.90th=[ 405], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 79, max= 223, per=25.24%, avg=142.61, stdev=31.13, samples=69 iops : min= 19, max= 55, avg=35.17, stdev= 7.86, samples=69 write: IOPS=36, BW=147KiB/s (150kB/s)(5180KiB/35308msec); 0 zone resets slat (usec): min=32, max=14016, avg=251.50, stdev=793.32 clat (msec): min=60, max=410, avg=216.22, stdev=50.74 lat (msec): min=60, max=410, avg=216.47, stdev=50.71 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 144], 10.00th=[ 159], 20.00th=[ 171], | 30.00th=[ 186], 40.00th=[ 199], 50.00th=[ 213], 60.00th=[ 224], | 70.00th=[ 241], 80.00th=[ 259], 90.00th=[ 284], 95.00th=[ 300], | 99.00th=[ 368], 99.50th=[ 388], 99.90th=[ 405], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 56, max= 224, per=24.77%, avg=145.90, stdev=34.51, samples=69 iops : min= 14, max= 56, avg=36.01, stdev= 8.66, samples=69 lat (msec) : 50=0.12%, 100=0.27%, 250=77.89%, 500=21.72% cpu : usr=0.23%, sys=1.55%, ctx=3945, 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=566KiB/s (580kB/s), 140KiB/s-143KiB/s (144kB/s-147kB/s), io=19.6MiB (20.5MB), run=35308-35457msec WRITE: bw=589KiB/s (603kB/s), 147KiB/s-148KiB/s (150kB/s-152kB/s), io=20.4MiB (21.4MB), run=35308-35457msec 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=180178: Tue Sep 15 00:14:42 2026 read: IOPS=2, BW=83.7MiB/s (87.7MB/s)(40.0MiB/478msec) slat (nsec): min=28406k, max=28406k, avg=28405913.00, stdev= 0.00 clat (nsec): min=425465k, max=425465k, avg=425465409.00, stdev= 0.00 lat (nsec): min=453877k, max=453877k, avg=453877097.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 426], 5.00th=[ 426], 10.00th=[ 426], 20.00th=[ 426], | 30.00th=[ 426], 40.00th=[ 426], 50.00th=[ 426], 60.00th=[ 426], | 70.00th=[ 426], 80.00th=[ 426], 90.00th=[ 426], 95.00th=[ 426], | 99.00th=[ 426], 99.50th=[ 426], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.52%, ctx=10, majf=0, minf=7 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=83.7MiB/s (87.7MB/s), 83.7MiB/s-83.7MiB/s (87.7MB/s-87.7MB/s), io=40.0MiB (41.9MB), run=478-478msec 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