== sanity test 398c: run fio to test AIO ================= 05:45:13 (1787391913) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.647424 s, 64.8 MB/s osc.lustre-OST0000-osc-ffff9840853d5800.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=180018: Sat Aug 22 05:46:00 2026 write: IOPS=71, BW=287KiB/s (294kB/s)(10.0MiB/35644msec); 0 zone resets slat (usec): min=52, max=15329, avg=396.30, stdev=973.54 clat (msec): min=35, max=392, avg=222.27, stdev=50.79 lat (msec): min=35, max=407, avg=222.67, stdev=50.82 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 148], 10.00th=[ 163], 20.00th=[ 180], | 30.00th=[ 192], 40.00th=[ 207], 50.00th=[ 220], 60.00th=[ 232], | 70.00th=[ 249], 80.00th=[ 266], 90.00th=[ 288], 95.00th=[ 313], | 99.00th=[ 347], 99.50th=[ 355], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 152, max= 431, per=24.99%, avg=285.34, stdev=55.32, samples=70 iops : min= 38, max= 107, avg=70.91, stdev=13.78, samples=70 lat (msec) : 50=0.12%, 100=0.86%, 250=69.92%, 500=29.10% cpu : usr=0.16%, sys=1.12%, ctx=2680, 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=180019: Sat Aug 22 05:46:00 2026 write: IOPS=71, BW=286KiB/s (292kB/s)(10.0MiB/35862msec); 0 zone resets slat (usec): min=49, max=25406, avg=361.64, stdev=1118.62 clat (msec): min=23, max=355, avg=222.75, stdev=51.66 lat (msec): min=23, max=355, avg=223.12, stdev=51.65 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 142], 10.00th=[ 157], 20.00th=[ 178], | 30.00th=[ 197], 40.00th=[ 209], 50.00th=[ 224], 60.00th=[ 234], | 70.00th=[ 249], 80.00th=[ 266], 90.00th=[ 292], 95.00th=[ 313], | 99.00th=[ 338], 99.50th=[ 351], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 127, max= 471, per=24.82%, avg=283.45, stdev=74.89, samples=71 iops : min= 31, max= 117, avg=70.45, stdev=18.71, samples=71 lat (msec) : 50=0.12%, 100=0.47%, 250=70.43%, 500=28.98% cpu : usr=0.12%, sys=0.96%, ctx=1642, 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=180020: Sat Aug 22 05:46:00 2026 write: IOPS=71, BW=286KiB/s (293kB/s)(10.0MiB/35832msec); 0 zone resets slat (usec): min=50, max=22979, avg=355.77, stdev=1011.12 clat (msec): min=32, max=369, avg=222.74, stdev=49.40 lat (msec): min=33, max=371, avg=223.10, stdev=49.41 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 146], 10.00th=[ 163], 20.00th=[ 182], | 30.00th=[ 194], 40.00th=[ 205], 50.00th=[ 220], 60.00th=[ 232], | 70.00th=[ 249], 80.00th=[ 266], 90.00th=[ 292], 95.00th=[ 313], | 99.00th=[ 342], 99.50th=[ 347], 99.90th=[ 368], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 152, max= 447, per=24.86%, avg=283.92, stdev=60.05, samples=71 iops : min= 38, max= 111, avg=70.56, stdev=14.93, samples=71 lat (msec) : 50=0.12%, 100=0.08%, 250=70.04%, 500=29.77% cpu : usr=0.16%, sys=0.93%, ctx=2066, 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=180021: Sat Aug 22 05:46:00 2026 write: IOPS=71, BW=286KiB/s (293kB/s)(10.0MiB/35771msec); 0 zone resets slat (usec): min=50, max=20283, avg=428.55, stdev=1258.09 clat (msec): min=16, max=396, avg=222.39, stdev=50.95 lat (msec): min=17, max=396, avg=222.82, stdev=50.97 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 146], 10.00th=[ 161], 20.00th=[ 180], | 30.00th=[ 197], 40.00th=[ 205], 50.00th=[ 222], 60.00th=[ 232], | 70.00th=[ 249], 80.00th=[ 268], 90.00th=[ 292], 95.00th=[ 309], | 99.00th=[ 342], 99.50th=[ 355], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 397] bw ( KiB/s): min= 159, max= 439, per=24.98%, avg=285.24, stdev=64.74, samples=71 iops : min= 39, max= 109, avg=70.89, stdev=16.17, samples=71 lat (msec) : 20=0.04%, 50=0.12%, 100=0.70%, 250=70.27%, 500=28.87% cpu : usr=0.19%, sys=1.22%, ctx=2758, 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=1142KiB/s (1170kB/s), 286KiB/s-287KiB/s (292kB/s-294kB/s), io=40.0MiB (41.9MB), run=35644-35862msec 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=180038: Sat Aug 22 05:46:46 2026 read: IOPS=34, BW=137KiB/s (140kB/s)(5048KiB/36937msec) slat (usec): min=3880, max=53136, avg=16589.00, stdev=8330.86 clat (msec): min=96, max=463, avg=217.88, stdev=48.43 lat (msec): min=111, max=473, avg=234.48, stdev=50.33 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 148], 10.00th=[ 161], 20.00th=[ 178], | 30.00th=[ 192], 40.00th=[ 203], 50.00th=[ 213], 60.00th=[ 226], | 70.00th=[ 241], 80.00th=[ 255], 90.00th=[ 279], 95.00th=[ 300], | 99.00th=[ 351], 99.50th=[ 372], 99.90th=[ 460], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 66, max= 214, per=25.07%, avg=136.13, stdev=33.06, samples=72 iops : min= 16, max= 53, avg=33.44, stdev= 8.27, samples=72 write: IOPS=35, BW=141KiB/s (144kB/s)(5192KiB/36937msec); 0 zone resets slat (usec): min=55, max=20788, avg=479.13, stdev=1184.10 clat (msec): min=118, max=428, avg=222.76, stdev=49.36 lat (msec): min=119, max=429, avg=223.25, stdev=49.34 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 155], 10.00th=[ 167], 20.00th=[ 180], | 30.00th=[ 192], 40.00th=[ 205], 50.00th=[ 218], 60.00th=[ 230], | 70.00th=[ 243], 80.00th=[ 259], 90.00th=[ 288], 95.00th=[ 313], | 99.00th=[ 376], 99.50th=[ 388], 99.90th=[ 430], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 60, max= 223, per=24.88%, avg=140.58, stdev=31.64, samples=72 iops : min= 15, max= 55, avg=34.57, stdev= 7.90, samples=72 lat (msec) : 100=0.04%, 250=75.04%, 500=24.92% cpu : usr=0.27%, sys=2.21%, ctx=4506, 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=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=180039: Sat Aug 22 05:46:46 2026 read: IOPS=33, BW=135KiB/s (138kB/s)(4976KiB/36809msec) slat (usec): min=3826, max=64725, avg=16557.24, stdev=8584.34 clat (msec): min=25, max=455, avg=216.16, stdev=50.70 lat (msec): min=36, max=467, avg=232.73, stdev=52.76 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 144], 10.00th=[ 159], 20.00th=[ 176], | 30.00th=[ 186], 40.00th=[ 199], 50.00th=[ 211], 60.00th=[ 224], | 70.00th=[ 239], 80.00th=[ 255], 90.00th=[ 279], 95.00th=[ 313], | 99.00th=[ 359], 99.50th=[ 388], 99.90th=[ 418], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 47, max= 231, per=24.86%, avg=134.99, stdev=36.07, samples=72 iops : min= 11, max= 57, avg=33.15, stdev= 9.03, samples=72 write: IOPS=35, BW=143KiB/s (146kB/s)(5264KiB/36809msec); 0 zone resets slat (usec): min=54, max=24742, avg=507.87, stdev=1356.39 clat (msec): min=17, max=454, avg=224.18, stdev=52.46 lat (msec): min=17, max=455, avg=224.70, stdev=52.45 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 153], 10.00th=[ 165], 20.00th=[ 180], | 30.00th=[ 192], 40.00th=[ 205], 50.00th=[ 220], 60.00th=[ 232], | 70.00th=[ 249], 80.00th=[ 264], 90.00th=[ 292], 95.00th=[ 326], | 99.00th=[ 372], 99.50th=[ 380], 99.90th=[ 401], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 79, max= 223, per=25.34%, avg=143.15, stdev=33.97, samples=72 iops : min= 19, max= 55, avg=35.21, stdev= 8.53, samples=72 lat (msec) : 20=0.04%, 50=0.12%, 250=74.92%, 500=24.92% cpu : usr=0.29%, sys=2.18%, ctx=4394, 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=180040: Sat Aug 22 05:46:46 2026 read: IOPS=33, BW=135KiB/s (139kB/s)(4984KiB/36839msec) slat (usec): min=67, max=59662, avg=16566.19, stdev=8515.32 clat (msec): min=91, max=437, avg=219.75, stdev=50.07 lat (msec): min=100, max=450, avg=236.33, stdev=51.95 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 150], 10.00th=[ 163], 20.00th=[ 178], | 30.00th=[ 190], 40.00th=[ 203], 50.00th=[ 215], 60.00th=[ 228], | 70.00th=[ 243], 80.00th=[ 259], 90.00th=[ 288], 95.00th=[ 309], | 99.00th=[ 368], 99.50th=[ 384], 99.90th=[ 422], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 55, max= 239, per=24.92%, avg=135.32, stdev=34.19, samples=72 iops : min= 13, max= 59, avg=33.25, stdev= 8.59, samples=72 write: IOPS=35, BW=143KiB/s (146kB/s)(5256KiB/36839msec); 0 zone resets slat (usec): min=57, max=14306, avg=490.13, stdev=1101.37 clat (msec): min=43, max=466, avg=223.08, stdev=52.88 lat (msec): min=43, max=466, avg=223.57, stdev=52.86 clat percentiles (msec): | 1.00th=[ 133], 5.00th=[ 150], 10.00th=[ 165], 20.00th=[ 182], | 30.00th=[ 192], 40.00th=[ 203], 50.00th=[ 215], 60.00th=[ 228], | 70.00th=[ 245], 80.00th=[ 264], 90.00th=[ 292], 95.00th=[ 321], | 99.00th=[ 388], 99.50th=[ 405], 99.90th=[ 468], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 63, max= 240, per=25.14%, avg=142.06, stdev=36.54, samples=72 iops : min= 15, max= 60, avg=34.94, stdev= 9.18, samples=72 lat (msec) : 50=0.04%, 100=0.12%, 250=74.02%, 500=25.82% cpu : usr=0.30%, sys=2.15%, ctx=4519, 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=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=180041: Sat Aug 22 05:46:46 2026 read: IOPS=34, BW=137KiB/s (140kB/s)(5060KiB/36927msec) slat (usec): min=3566, max=66713, avg=16865.67, stdev=9057.02 clat (msec): min=87, max=452, avg=217.79, stdev=52.31 lat (msec): min=113, max=463, avg=234.67, stdev=55.00 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 146], 10.00th=[ 159], 20.00th=[ 176], | 30.00th=[ 188], 40.00th=[ 199], 50.00th=[ 211], 60.00th=[ 226], | 70.00th=[ 236], 80.00th=[ 257], 90.00th=[ 288], 95.00th=[ 321], | 99.00th=[ 368], 99.50th=[ 384], 99.90th=[ 422], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 78, max= 247, per=25.17%, avg=136.65, stdev=31.09, samples=72 iops : min= 19, max= 61, avg=33.57, stdev= 7.85, samples=72 write: IOPS=35, BW=140KiB/s (144kB/s)(5180KiB/36927msec); 0 zone resets slat (usec): min=60, max=16838, avg=458.75, stdev=1110.75 clat (msec): min=120, max=424, avg=223.57, stdev=50.77 lat (msec): min=121, max=424, avg=224.03, stdev=50.72 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 153], 10.00th=[ 165], 20.00th=[ 180], | 30.00th=[ 194], 40.00th=[ 205], 50.00th=[ 218], 60.00th=[ 232], | 70.00th=[ 247], 80.00th=[ 262], 90.00th=[ 292], 95.00th=[ 321], | 99.00th=[ 372], 99.50th=[ 393], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 55, max= 229, per=24.69%, avg=139.50, stdev=34.70, samples=72 iops : min= 13, max= 57, avg=34.31, stdev= 8.67, samples=72 lat (msec) : 100=0.08%, 250=75.20%, 500=24.73% cpu : usr=0.28%, sys=2.19%, ctx=4483, 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=543KiB/s (556kB/s), 135KiB/s-137KiB/s (138kB/s-140kB/s), io=19.6MiB (20.5MB), run=36809-36937msec WRITE: bw=566KiB/s (579kB/s), 140KiB/s-143KiB/s (144kB/s-146kB/s), io=20.4MiB (21.4MB), run=36809-36937msec 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=180050: Sat Aug 22 05:46:55 2026 read: IOPS=1, BW=77.2MiB/s (80.0MB/s)(40.0MiB/518msec) slat (nsec): min=39279k, max=39279k, avg=39278815.00, stdev= 0.00 clat (nsec): min=448617k, max=448617k, avg=448616755.00, stdev= 0.00 lat (nsec): min=487901k, max=487901k, avg=487901395.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 447], 5.00th=[ 447], 10.00th=[ 447], 20.00th=[ 447], | 30.00th=[ 447], 40.00th=[ 447], 50.00th=[ 447], 60.00th=[ 447], | 70.00th=[ 447], 80.00th=[ 447], 90.00th=[ 447], 95.00th=[ 447], | 99.00th=[ 447], 99.50th=[ 447], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.71%, ctx=5, 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=77.2MiB/s (80.0MB/s), 77.2MiB/s-77.2MiB/s (80.0MB/s-80.0MB/s), io=40.0MiB (41.9MB), run=518-518msec 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