== sanity test 398c: run fio to test AIO ================= 20:20:49 (1788567649) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.758443 s, 55.3 MB/s osc.lustre-OST0000-osc-ffff8ac59cf8a800.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=179069: Fri Sep 4 20:21:34 2026 write: IOPS=81, BW=325KiB/s (333kB/s)(10.0MiB/31492msec); 0 zone resets slat (usec): min=23, max=29905, avg=223.45, stdev=1060.97 clat (msec): min=23, max=423, avg=196.11, stdev=61.53 lat (msec): min=25, max=424, avg=196.34, stdev=61.53 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 118], 10.00th=[ 127], 20.00th=[ 140], | 30.00th=[ 157], 40.00th=[ 171], 50.00th=[ 188], 60.00th=[ 205], | 70.00th=[ 222], 80.00th=[ 249], 90.00th=[ 284], 95.00th=[ 309], | 99.00th=[ 363], 99.50th=[ 376], 99.90th=[ 414], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 175, max= 542, per=25.15%, avg=324.95, stdev=86.50, samples=62 iops : min= 43, max= 135, avg=80.76, stdev=21.70, samples=62 lat (msec) : 50=0.43%, 100=1.13%, 250=78.71%, 500=19.73% cpu : usr=0.20%, sys=0.87%, ctx=2787, 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=179070: Fri Sep 4 20:21:34 2026 write: IOPS=80, BW=323KiB/s (331kB/s)(10.0MiB/31685msec); 0 zone resets slat (usec): min=21, max=21065, avg=196.67, stdev=959.49 clat (msec): min=34, max=393, avg=196.58, stdev=59.45 lat (msec): min=34, max=393, avg=196.78, stdev=59.45 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 121], 10.00th=[ 129], 20.00th=[ 142], | 30.00th=[ 155], 40.00th=[ 171], 50.00th=[ 186], 60.00th=[ 207], | 70.00th=[ 220], 80.00th=[ 251], 90.00th=[ 284], 95.00th=[ 313], | 99.00th=[ 334], 99.50th=[ 355], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 127, max= 606, per=24.87%, avg=321.27, stdev=92.55, samples=63 iops : min= 31, max= 151, avg=79.87, stdev=23.19, samples=63 lat (msec) : 50=0.04%, 100=0.20%, 250=79.49%, 500=20.27% cpu : usr=0.08%, sys=0.75%, ctx=2296, 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=179071: Fri Sep 4 20:21:35 2026 write: IOPS=80, BW=323KiB/s (331kB/s)(10.0MiB/31691msec); 0 zone resets slat (usec): min=21, max=17162, avg=194.00, stdev=913.89 clat (msec): min=23, max=422, avg=196.66, stdev=60.37 lat (msec): min=24, max=422, avg=196.86, stdev=60.36 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 121], 10.00th=[ 129], 20.00th=[ 142], | 30.00th=[ 155], 40.00th=[ 171], 50.00th=[ 186], 60.00th=[ 205], | 70.00th=[ 220], 80.00th=[ 251], 90.00th=[ 284], 95.00th=[ 313], | 99.00th=[ 351], 99.50th=[ 393], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 127, max= 558, per=24.87%, avg=321.29, stdev=92.68, samples=63 iops : min= 31, max= 139, avg=79.86, stdev=23.23, samples=63 lat (msec) : 50=0.04%, 100=0.43%, 250=79.45%, 500=20.08% cpu : usr=0.15%, sys=0.90%, ctx=2166, 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=179072: Fri Sep 4 20:21:35 2026 write: IOPS=80, BW=323KiB/s (331kB/s)(10.0MiB/31696msec); 0 zone resets slat (usec): min=22, max=28982, avg=184.03, stdev=1097.08 clat (msec): min=24, max=397, avg=196.45, stdev=61.24 lat (msec): min=24, max=397, avg=196.63, stdev=61.25 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 122], 10.00th=[ 130], 20.00th=[ 142], | 30.00th=[ 157], 40.00th=[ 169], 50.00th=[ 184], 60.00th=[ 201], | 70.00th=[ 220], 80.00th=[ 253], 90.00th=[ 292], 95.00th=[ 313], | 99.00th=[ 347], 99.50th=[ 380], 99.90th=[ 397], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 126, max= 518, per=24.87%, avg=321.32, stdev=97.44, samples=63 iops : min= 31, max= 129, avg=79.87, stdev=24.44, samples=63 lat (msec) : 50=0.16%, 100=0.74%, 250=78.55%, 500=20.55% cpu : usr=0.16%, sys=0.76%, ctx=1293, 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=1292KiB/s (1323kB/s), 323KiB/s-325KiB/s (331kB/s-333kB/s), io=40.0MiB (41.9MB), run=31492-31696msec 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=179087: Fri Sep 4 20:22:25 2026 read: IOPS=33, BW=134KiB/s (138kB/s)(5048KiB/37532msec) slat (usec): min=31, max=62282, avg=15553.93, stdev=8669.88 clat (msec): min=42, max=468, avg=222.37, stdev=52.89 lat (msec): min=49, max=477, avg=237.93, stdev=54.98 clat percentiles (msec): | 1.00th=[ 133], 5.00th=[ 159], 10.00th=[ 167], 20.00th=[ 184], | 30.00th=[ 194], 40.00th=[ 205], 50.00th=[ 213], 60.00th=[ 226], | 70.00th=[ 239], 80.00th=[ 255], 90.00th=[ 292], 95.00th=[ 321], | 99.00th=[ 409], 99.50th=[ 430], 99.90th=[ 456], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 87, max= 198, per=25.45%, avg=134.14, stdev=29.78, samples=74 iops : min= 21, max= 49, avg=33.07, stdev= 7.47, samples=74 write: IOPS=34, BW=138KiB/s (142kB/s)(5192KiB/37532msec); 0 zone resets slat (usec): min=34, max=8555, avg=190.42, stdev=515.42 clat (msec): min=36, max=454, avg=230.13, stdev=49.88 lat (msec): min=37, max=454, avg=230.32, stdev=49.88 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 167], 10.00th=[ 180], 20.00th=[ 194], | 30.00th=[ 205], 40.00th=[ 213], 50.00th=[ 220], 60.00th=[ 232], | 70.00th=[ 243], 80.00th=[ 264], 90.00th=[ 296], 95.00th=[ 326], | 99.00th=[ 388], 99.50th=[ 409], 99.90th=[ 447], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 47, max= 230, per=25.21%, avg=138.38, stdev=34.30, samples=74 iops : min= 11, max= 57, avg=34.12, stdev= 8.60, samples=74 lat (msec) : 50=0.20%, 100=0.39%, 250=75.23%, 500=24.18% cpu : usr=0.31%, sys=1.71%, ctx=4526, 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=179088: Fri Sep 4 20:22:25 2026 read: IOPS=33, BW=132KiB/s (135kB/s)(4976KiB/37636msec) slat (usec): min=46, max=86725, avg=15956.74, stdev=8750.47 clat (msec): min=80, max=427, avg=222.79, stdev=51.14 lat (msec): min=81, max=463, avg=238.76, stdev=53.68 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 159], 10.00th=[ 171], 20.00th=[ 186], | 30.00th=[ 194], 40.00th=[ 203], 50.00th=[ 213], 60.00th=[ 224], | 70.00th=[ 239], 80.00th=[ 253], 90.00th=[ 288], 95.00th=[ 326], | 99.00th=[ 393], 99.50th=[ 409], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 45, max= 191, per=24.98%, avg=131.62, stdev=31.83, samples=74 iops : min= 11, max= 47, avg=32.43, stdev= 7.97, samples=74 write: IOPS=34, BW=140KiB/s (143kB/s)(5264KiB/37636msec); 0 zone resets slat (usec): min=30, max=27715, avg=230.40, stdev=1113.44 clat (msec): min=116, max=455, avg=228.56, stdev=45.05 lat (msec): min=116, max=456, avg=228.79, stdev=45.10 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 174], 10.00th=[ 182], 20.00th=[ 197], | 30.00th=[ 205], 40.00th=[ 213], 50.00th=[ 222], 60.00th=[ 230], | 70.00th=[ 239], 80.00th=[ 257], 90.00th=[ 284], 95.00th=[ 317], | 99.00th=[ 393], 99.50th=[ 426], 99.90th=[ 447], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 39, max= 222, per=25.49%, avg=139.93, stdev=34.40, samples=74 iops : min= 9, max= 55, avg=34.50, stdev= 8.62, samples=74 lat (msec) : 100=0.08%, 250=77.58%, 500=22.34% cpu : usr=0.25%, sys=1.70%, ctx=4255, 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=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=179089: Fri Sep 4 20:22:25 2026 read: IOPS=32, BW=131KiB/s (134kB/s)(4984KiB/38015msec) slat (usec): min=3521, max=65120, avg=16310.16, stdev=8700.93 clat (msec): min=45, max=434, avg=222.69, stdev=50.44 lat (msec): min=60, max=466, avg=239.01, stdev=52.16 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 159], 10.00th=[ 169], 20.00th=[ 184], | 30.00th=[ 194], 40.00th=[ 205], 50.00th=[ 215], 60.00th=[ 228], | 70.00th=[ 241], 80.00th=[ 257], 90.00th=[ 284], 95.00th=[ 317], | 99.00th=[ 384], 99.50th=[ 405], 99.90th=[ 430], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 15, max= 199, per=24.67%, avg=130.03, stdev=32.99, samples=75 iops : min= 3, max= 49, avg=32.04, stdev= 8.25, samples=75 write: IOPS=34, BW=138KiB/s (142kB/s)(5256KiB/38015msec); 0 zone resets slat (usec): min=32, max=14352, avg=189.34, stdev=667.47 clat (msec): min=59, max=434, avg=231.71, stdev=51.53 lat (msec): min=59, max=434, avg=231.90, stdev=51.53 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 169], 10.00th=[ 178], 20.00th=[ 194], | 30.00th=[ 207], 40.00th=[ 213], 50.00th=[ 224], 60.00th=[ 234], | 70.00th=[ 247], 80.00th=[ 264], 90.00th=[ 300], 95.00th=[ 338], | 99.00th=[ 405], 99.50th=[ 418], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 30, max= 239, per=24.87%, avg=136.53, stdev=37.79, samples=75 iops : min= 7, max= 59, avg=33.65, stdev= 9.48, samples=75 lat (msec) : 50=0.04%, 100=0.51%, 250=74.49%, 500=24.96% cpu : usr=0.27%, sys=1.60%, ctx=4430, 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=179090: Fri Sep 4 20:22:25 2026 read: IOPS=33, BW=133KiB/s (137kB/s)(5060KiB/37903msec) slat (usec): min=3133, max=70661, avg=15965.35, stdev=8596.28 clat (msec): min=67, max=447, avg=223.07, stdev=47.68 lat (msec): min=75, max=488, avg=239.05, stdev=49.36 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 159], 10.00th=[ 169], 20.00th=[ 186], | 30.00th=[ 197], 40.00th=[ 207], 50.00th=[ 218], 60.00th=[ 228], | 70.00th=[ 241], 80.00th=[ 255], 90.00th=[ 284], 95.00th=[ 317], | 99.00th=[ 372], 99.50th=[ 405], 99.90th=[ 435], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 31, max= 200, per=25.21%, avg=132.87, stdev=30.46, samples=75 iops : min= 7, max= 50, avg=32.73, stdev= 7.67, samples=75 write: IOPS=34, BW=137KiB/s (140kB/s)(5180KiB/37903msec); 0 zone resets slat (usec): min=32, max=13842, avg=243.70, stdev=874.98 clat (msec): min=104, max=433, avg=230.68, stdev=47.64 lat (msec): min=104, max=433, avg=230.92, stdev=47.65 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 171], 10.00th=[ 180], 20.00th=[ 194], | 30.00th=[ 205], 40.00th=[ 213], 50.00th=[ 222], 60.00th=[ 230], | 70.00th=[ 243], 80.00th=[ 266], 90.00th=[ 296], 95.00th=[ 330], | 99.00th=[ 376], 99.50th=[ 384], 99.90th=[ 426], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 54, max= 206, per=24.80%, avg=136.16, stdev=31.36, samples=75 iops : min= 13, max= 51, avg=33.59, stdev= 7.84, samples=75 lat (msec) : 100=0.04%, 250=75.62%, 500=24.34% cpu : usr=0.25%, sys=1.76%, ctx=4327, 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=528KiB/s (541kB/s), 131KiB/s-134KiB/s (134kB/s-138kB/s), io=19.6MiB (20.5MB), run=37532-38015msec WRITE: bw=550KiB/s (563kB/s), 137KiB/s-140KiB/s (140kB/s-143kB/s), io=20.4MiB (21.4MB), run=37532-38015msec 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=179100: Fri Sep 4 20:22:40 2026 read: IOPS=1, BW=62.9MiB/s (65.9MB/s)(40.0MiB/636msec) slat (nsec): min=55656k, max=55656k, avg=55656312.00, stdev= 0.00 clat (nsec): min=543309k, max=543309k, avg=543308567.00, stdev= 0.00 lat (nsec): min=598970k, max=598970k, avg=598970148.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 542], 5.00th=[ 542], 10.00th=[ 542], 20.00th=[ 542], | 30.00th=[ 542], 40.00th=[ 542], 50.00th=[ 542], 60.00th=[ 542], | 70.00th=[ 542], 80.00th=[ 542], 90.00th=[ 542], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.20%, ctx=13, 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=62.9MiB/s (65.9MB/s), 62.9MiB/s-62.9MiB/s (65.9MB/s-65.9MB/s), io=40.0MiB (41.9MB), run=636-636msec 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