== sanity test 398c: run fio to test AIO ================= 16:33:18 (1789504398) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.522213 s, 80.3 MB/s osc.lustre-OST0000-osc-ffff9a0946b23000.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=179910: Tue Sep 15 16:34:01 2026 write: IOPS=80, BW=321KiB/s (328kB/s)(10.0MiB/31949msec); 0 zone resets slat (usec): min=27, max=17303, avg=192.62, stdev=772.08 clat (msec): min=17, max=419, avg=198.39, stdev=53.37 lat (msec): min=19, max=419, avg=198.59, stdev=53.38 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 126], 10.00th=[ 136], 20.00th=[ 159], | 30.00th=[ 171], 40.00th=[ 180], 50.00th=[ 190], 60.00th=[ 203], | 70.00th=[ 215], 80.00th=[ 236], 90.00th=[ 266], 95.00th=[ 305], | 99.00th=[ 363], 99.50th=[ 405], 99.90th=[ 414], 99.95th=[ 414], | 99.99th=[ 422] bw ( KiB/s): min= 124, max= 510, per=25.03%, avg=320.63, stdev=75.84, samples=63 iops : min= 31, max= 127, avg=79.76, stdev=18.94, samples=63 lat (msec) : 20=0.04%, 50=0.08%, 100=0.43%, 250=84.88%, 500=14.57% cpu : usr=0.15%, sys=0.79%, ctx=1922, 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=179911: Tue Sep 15 16:34:01 2026 write: IOPS=80, BW=322KiB/s (330kB/s)(10.0MiB/31783msec); 0 zone resets slat (usec): min=29, max=18351, avg=238.56, stdev=961.06 clat (msec): min=20, max=403, avg=198.13, stdev=54.05 lat (msec): min=21, max=403, avg=198.37, stdev=54.06 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 123], 10.00th=[ 136], 20.00th=[ 157], | 30.00th=[ 171], 40.00th=[ 182], 50.00th=[ 192], 60.00th=[ 201], | 70.00th=[ 215], 80.00th=[ 234], 90.00th=[ 271], 95.00th=[ 305], | 99.00th=[ 363], 99.50th=[ 368], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 405] bw ( KiB/s): min= 133, max= 510, per=25.05%, avg=320.95, stdev=74.72, samples=63 iops : min= 33, max= 127, avg=79.86, stdev=18.71, samples=63 lat (msec) : 50=0.27%, 100=0.47%, 250=83.55%, 500=15.70% cpu : usr=0.23%, sys=1.01%, ctx=2468, majf=0, minf=8 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=179912: Tue Sep 15 16:34:01 2026 write: IOPS=80, BW=321KiB/s (328kB/s)(10.0MiB/31930msec); 0 zone resets slat (usec): min=28, max=12330, avg=209.34, stdev=741.67 clat (msec): min=16, max=416, avg=198.28, stdev=53.47 lat (msec): min=17, max=416, avg=198.50, stdev=53.48 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 127], 10.00th=[ 140], 20.00th=[ 157], | 30.00th=[ 169], 40.00th=[ 182], 50.00th=[ 190], 60.00th=[ 203], | 70.00th=[ 215], 80.00th=[ 239], 90.00th=[ 275], 95.00th=[ 292], | 99.00th=[ 355], 99.50th=[ 393], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 143, max= 510, per=24.93%, avg=319.41, stdev=74.96, samples=63 iops : min= 35, max= 127, avg=79.46, stdev=18.73, samples=63 lat (msec) : 20=0.04%, 50=0.12%, 100=1.17%, 250=83.20%, 500=15.47% cpu : usr=0.17%, sys=0.86%, ctx=1761, 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=179913: Tue Sep 15 16:34:01 2026 write: IOPS=80, BW=320KiB/s (328kB/s)(10.0MiB/31965msec); 0 zone resets slat (usec): min=28, max=22640, avg=213.25, stdev=846.22 clat (msec): min=25, max=410, avg=198.43, stdev=52.92 lat (msec): min=25, max=411, avg=198.64, stdev=52.92 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 129], 10.00th=[ 140], 20.00th=[ 159], | 30.00th=[ 169], 40.00th=[ 180], 50.00th=[ 190], 60.00th=[ 203], | 70.00th=[ 215], 80.00th=[ 234], 90.00th=[ 271], 95.00th=[ 296], | 99.00th=[ 363], 99.50th=[ 380], 99.90th=[ 388], 99.95th=[ 397], | 99.99th=[ 409] bw ( KiB/s): min= 144, max= 510, per=24.82%, avg=317.98, stdev=69.30, samples=63 iops : min= 36, max= 127, avg=79.11, stdev=17.31, samples=63 lat (msec) : 50=0.12%, 100=0.66%, 250=84.30%, 500=14.92% cpu : usr=0.15%, sys=0.84%, ctx=2346, 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 Run status group 0 (all jobs): WRITE: bw=1281KiB/s (1312kB/s), 320KiB/s-322KiB/s (328kB/s-330kB/s), io=40.0MiB (41.9MB), run=31783-31965msec 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=179928: Tue Sep 15 16:34:48 2026 read: IOPS=34, BW=136KiB/s (140kB/s)(5048KiB/37023msec) slat (usec): min=2317, max=59705, avg=15888.66, stdev=8729.01 clat (msec): min=33, max=412, avg=218.60, stdev=54.67 lat (msec): min=43, max=424, avg=234.49, stdev=57.04 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 136], 10.00th=[ 155], 20.00th=[ 174], | 30.00th=[ 188], 40.00th=[ 201], 50.00th=[ 213], 60.00th=[ 228], | 70.00th=[ 243], 80.00th=[ 268], 90.00th=[ 296], 95.00th=[ 313], | 99.00th=[ 355], 99.50th=[ 359], 99.90th=[ 409], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 70, max= 216, per=25.02%, avg=135.36, stdev=35.10, samples=73 iops : min= 17, max= 54, avg=33.34, stdev= 8.84, samples=73 write: IOPS=35, BW=140KiB/s (144kB/s)(5192KiB/37023msec); 0 zone resets slat (usec): min=30, max=18270, avg=254.54, stdev=1024.97 clat (msec): min=57, max=434, avg=226.08, stdev=53.47 lat (msec): min=57, max=434, avg=226.34, stdev=53.50 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 140], 10.00th=[ 163], 20.00th=[ 186], | 30.00th=[ 199], 40.00th=[ 209], 50.00th=[ 222], 60.00th=[ 234], | 70.00th=[ 251], 80.00th=[ 271], 90.00th=[ 300], 95.00th=[ 317], | 99.00th=[ 368], 99.50th=[ 393], 99.90th=[ 430], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 88, max= 222, per=24.77%, avg=139.70, stdev=34.10, samples=73 iops : min= 22, max= 55, avg=34.44, stdev= 8.52, samples=73 lat (msec) : 50=0.04%, 100=0.39%, 250=70.90%, 500=28.67% cpu : usr=0.22%, sys=1.47%, ctx=3877, 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=179929: Tue Sep 15 16:34:48 2026 read: IOPS=33, BW=134KiB/s (138kB/s)(4976KiB/37026msec) slat (usec): min=2587, max=95989, avg=16549.14, stdev=9320.84 clat (msec): min=76, max=458, avg=219.97, stdev=56.11 lat (msec): min=85, max=489, avg=236.52, stdev=58.88 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 134], 10.00th=[ 153], 20.00th=[ 174], | 30.00th=[ 190], 40.00th=[ 203], 50.00th=[ 215], 60.00th=[ 230], | 70.00th=[ 245], 80.00th=[ 266], 90.00th=[ 296], 95.00th=[ 321], | 99.00th=[ 368], 99.50th=[ 380], 99.90th=[ 439], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 55, max= 223, per=24.66%, avg=133.41, stdev=35.96, samples=73 iops : min= 13, max= 55, avg=32.85, stdev= 9.03, samples=73 write: IOPS=35, BW=142KiB/s (146kB/s)(5264KiB/37026msec); 0 zone resets slat (usec): min=31, max=11749, avg=228.70, stdev=696.94 clat (msec): min=76, max=448, avg=224.80, stdev=53.67 lat (msec): min=76, max=448, avg=225.03, stdev=53.70 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 142], 10.00th=[ 161], 20.00th=[ 182], | 30.00th=[ 194], 40.00th=[ 205], 50.00th=[ 222], 60.00th=[ 236], | 70.00th=[ 253], 80.00th=[ 271], 90.00th=[ 300], 95.00th=[ 317], | 99.00th=[ 363], 99.50th=[ 372], 99.90th=[ 409], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 64, max= 240, per=25.14%, avg=141.78, stdev=36.89, samples=73 iops : min= 16, max= 60, avg=34.96, stdev= 9.24, samples=73 lat (msec) : 100=0.62%, 250=70.35%, 500=29.02% cpu : usr=0.23%, sys=1.41%, ctx=4177, 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=179930: Tue Sep 15 16:34:48 2026 read: IOPS=33, BW=135KiB/s (138kB/s)(4984KiB/36968msec) slat (usec): min=2814, max=75556, avg=15891.78, stdev=8778.38 clat (msec): min=19, max=478, avg=218.33, stdev=58.66 lat (msec): min=38, max=487, avg=234.22, stdev=61.07 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 132], 10.00th=[ 150], 20.00th=[ 174], | 30.00th=[ 188], 40.00th=[ 201], 50.00th=[ 213], 60.00th=[ 224], | 70.00th=[ 239], 80.00th=[ 262], 90.00th=[ 296], 95.00th=[ 330], | 99.00th=[ 380], 99.50th=[ 393], 99.90th=[ 464], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 55, max= 232, per=24.85%, avg=134.45, stdev=39.81, samples=73 iops : min= 13, max= 58, avg=33.14, stdev=10.00, samples=73 write: IOPS=35, BW=142KiB/s (146kB/s)(5256KiB/36968msec); 0 zone resets slat (usec): min=33, max=16864, avg=253.92, stdev=988.69 clat (msec): min=41, max=419, avg=225.61, stdev=54.12 lat (msec): min=41, max=419, avg=225.87, stdev=54.19 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 142], 10.00th=[ 163], 20.00th=[ 182], | 30.00th=[ 194], 40.00th=[ 207], 50.00th=[ 220], 60.00th=[ 232], | 70.00th=[ 249], 80.00th=[ 271], 90.00th=[ 300], 95.00th=[ 321], | 99.00th=[ 363], 99.50th=[ 388], 99.90th=[ 418], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 63, max= 231, per=25.10%, avg=141.56, stdev=37.73, samples=73 iops : min= 15, max= 57, avg=34.90, stdev= 9.45, samples=73 lat (msec) : 20=0.04%, 50=0.12%, 100=0.27%, 250=72.38%, 500=27.19% cpu : usr=0.23%, sys=1.43%, ctx=3986, 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=179931: Tue Sep 15 16:34:48 2026 read: IOPS=34, BW=137KiB/s (140kB/s)(5060KiB/36914msec) slat (usec): min=37, max=114085, avg=15896.85, stdev=9389.56 clat (msec): min=85, max=409, avg=221.12, stdev=56.31 lat (msec): min=100, max=435, avg=237.02, stdev=58.89 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 140], 10.00th=[ 157], 20.00th=[ 178], | 30.00th=[ 188], 40.00th=[ 201], 50.00th=[ 213], 60.00th=[ 226], | 70.00th=[ 243], 80.00th=[ 271], 90.00th=[ 305], 95.00th=[ 326], | 99.00th=[ 363], 99.50th=[ 372], 99.90th=[ 401], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 63, max= 223, per=25.19%, avg=136.29, stdev=33.92, samples=73 iops : min= 15, max= 55, avg=33.59, stdev= 8.53, samples=73 write: IOPS=35, BW=140KiB/s (144kB/s)(5180KiB/36914msec); 0 zone resets slat (usec): min=29, max=9594, avg=195.76, stdev=597.76 clat (msec): min=43, max=447, avg=223.76, stdev=55.57 lat (msec): min=43, max=447, avg=223.96, stdev=55.57 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 142], 10.00th=[ 159], 20.00th=[ 182], | 30.00th=[ 194], 40.00th=[ 205], 50.00th=[ 218], 60.00th=[ 230], | 70.00th=[ 247], 80.00th=[ 268], 90.00th=[ 300], 95.00th=[ 330], | 99.00th=[ 372], 99.50th=[ 384], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 40, max= 232, per=24.76%, avg=139.64, stdev=37.43, samples=73 iops : min= 10, max= 58, avg=34.44, stdev= 9.38, samples=73 lat (msec) : 50=0.04%, 100=0.43%, 250=71.68%, 500=27.85% cpu : usr=0.20%, sys=1.51%, ctx=3989, 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=542KiB/s (555kB/s), 134KiB/s-137KiB/s (138kB/s-140kB/s), io=19.6MiB (20.5MB), run=36914-37026msec WRITE: bw=564KiB/s (578kB/s), 140KiB/s-142KiB/s (144kB/s-146kB/s), io=20.4MiB (21.4MB), run=36914-37026msec 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=179941: Tue Sep 15 16:35:00 2026 read: IOPS=1, BW=68.3MiB/s (71.6MB/s)(40.0MiB/586msec) slat (nsec): min=32061k, max=32061k, avg=32060782.00, stdev= 0.00 clat (nsec): min=533331k, max=533331k, avg=533330988.00, stdev= 0.00 lat (nsec): min=565396k, max=565396k, avg=565396187.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 535], 5.00th=[ 535], 10.00th=[ 535], 20.00th=[ 535], | 30.00th=[ 535], 40.00th=[ 535], 50.00th=[ 535], 60.00th=[ 535], | 70.00th=[ 535], 80.00th=[ 535], 90.00th=[ 535], 95.00th=[ 535], | 99.00th=[ 535], 99.50th=[ 535], 99.90th=[ 535], 99.95th=[ 535], | 99.99th=[ 535] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.22%, ctx=5, 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=68.3MiB/s (71.6MB/s), 68.3MiB/s-68.3MiB/s (71.6MB/s-71.6MB/s), io=40.0MiB (41.9MB), run=586-586msec 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