== sanity test 398c: run fio to test AIO ================= 17:50:27 (1778622627) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.439808 s, 95.4 MB/s osc.lustre-OST0000-osc-ffff8f394494a000.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=179633: Tue May 12 17:51:13 2026 write: IOPS=73, BW=293KiB/s (300kB/s)(10.0MiB/34927msec); 0 zone resets slat (usec): min=50, max=14078, avg=367.20, stdev=951.83 clat (msec): min=11, max=377, avg=217.22, stdev=41.40 lat (msec): min=12, max=377, avg=217.59, stdev=41.38 clat percentiles (msec): | 1.00th=[ 133], 5.00th=[ 148], 10.00th=[ 165], 20.00th=[ 184], | 30.00th=[ 197], 40.00th=[ 207], 50.00th=[ 218], 60.00th=[ 226], | 70.00th=[ 234], 80.00th=[ 251], 90.00th=[ 271], 95.00th=[ 288], | 99.00th=[ 330], 99.50th=[ 338], 99.90th=[ 351], 99.95th=[ 355], | 99.99th=[ 376] bw ( KiB/s): min= 199, max= 383, per=24.89%, avg=291.72, stdev=45.31, samples=69 iops : min= 49, max= 95, avg=72.55, stdev=11.32, samples=69 lat (msec) : 20=0.04%, 100=0.04%, 250=80.08%, 500=19.84% cpu : usr=0.11%, sys=1.11%, ctx=2534, 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=179634: Tue May 12 17:51:13 2026 write: IOPS=73, BW=294KiB/s (301kB/s)(10.0MiB/34796msec); 0 zone resets slat (usec): min=40, max=16627, avg=366.26, stdev=995.16 clat (msec): min=26, max=378, avg=216.51, stdev=41.65 lat (msec): min=26, max=378, avg=216.88, stdev=41.64 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 153], 10.00th=[ 165], 20.00th=[ 180], | 30.00th=[ 194], 40.00th=[ 205], 50.00th=[ 218], 60.00th=[ 226], | 70.00th=[ 239], 80.00th=[ 251], 90.00th=[ 271], 95.00th=[ 284], | 99.00th=[ 326], 99.50th=[ 342], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 380] bw ( KiB/s): min= 159, max= 384, per=25.01%, avg=293.12, stdev=51.27, samples=69 iops : min= 39, max= 96, avg=72.88, stdev=12.82, samples=69 lat (msec) : 50=0.08%, 250=79.77%, 500=20.16% cpu : usr=0.14%, sys=1.11%, ctx=2774, 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=179635: Tue May 12 17:51:13 2026 write: IOPS=73, BW=294KiB/s (302kB/s)(10.0MiB/34777msec); 0 zone resets slat (usec): min=52, max=13539, avg=343.65, stdev=844.09 clat (msec): min=21, max=361, avg=216.76, stdev=42.18 lat (msec): min=24, max=361, avg=217.11, stdev=42.17 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 155], 10.00th=[ 165], 20.00th=[ 182], | 30.00th=[ 194], 40.00th=[ 205], 50.00th=[ 218], 60.00th=[ 226], | 70.00th=[ 239], 80.00th=[ 251], 90.00th=[ 268], 95.00th=[ 288], | 99.00th=[ 334], 99.50th=[ 338], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 159, max= 383, per=25.00%, avg=292.94, stdev=49.19, samples=69 iops : min= 39, max= 95, avg=72.86, stdev=12.27, samples=69 lat (msec) : 50=0.08%, 100=0.27%, 250=79.26%, 500=20.39% cpu : usr=0.13%, sys=1.03%, ctx=2622, 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=179636: Tue May 12 17:51:13 2026 write: IOPS=73, BW=294KiB/s (301kB/s)(10.0MiB/34885msec); 0 zone resets slat (usec): min=50, max=27131, avg=345.22, stdev=963.69 clat (msec): min=35, max=359, avg=216.84, stdev=41.84 lat (msec): min=36, max=363, avg=217.19, stdev=41.88 clat percentiles (msec): | 1.00th=[ 131], 5.00th=[ 153], 10.00th=[ 165], 20.00th=[ 180], | 30.00th=[ 197], 40.00th=[ 209], 50.00th=[ 215], 60.00th=[ 224], | 70.00th=[ 236], 80.00th=[ 253], 90.00th=[ 271], 95.00th=[ 284], | 99.00th=[ 330], 99.50th=[ 338], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 359] bw ( KiB/s): min= 191, max= 392, per=24.94%, avg=292.33, stdev=51.58, samples=69 iops : min= 47, max= 98, avg=72.70, stdev=12.90, samples=69 lat (msec) : 50=0.04%, 100=0.16%, 250=78.75%, 500=21.05% cpu : usr=0.14%, sys=1.04%, ctx=2635, 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=1173KiB/s (1201kB/s), 293KiB/s-294KiB/s (300kB/s-302kB/s), io=40.0MiB (41.9MB), run=34777-34927msec 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=179652: Tue May 12 17:52:01 2026 read: IOPS=33, BW=135KiB/s (139kB/s)(5048KiB/37311msec) slat (msec): min=2, max=110, avg=16.42, stdev= 9.41 clat (msec): min=71, max=432, avg=220.57, stdev=53.73 lat (msec): min=97, max=453, avg=237.00, stdev=55.80 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 140], 10.00th=[ 155], 20.00th=[ 176], | 30.00th=[ 190], 40.00th=[ 203], 50.00th=[ 215], 60.00th=[ 230], | 70.00th=[ 247], 80.00th=[ 266], 90.00th=[ 296], 95.00th=[ 321], | 99.00th=[ 351], 99.50th=[ 376], 99.90th=[ 414], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 77, max= 231, per=25.09%, avg=134.73, stdev=32.11, samples=73 iops : min= 19, max= 57, avg=33.21, stdev= 8.06, samples=73 write: IOPS=34, BW=139KiB/s (142kB/s)(5192KiB/37311msec); 0 zone resets slat (usec): min=55, max=13764, avg=372.82, stdev=922.26 clat (msec): min=93, max=424, avg=226.39, stdev=52.95 lat (msec): min=93, max=425, avg=226.77, stdev=52.95 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 150], 10.00th=[ 163], 20.00th=[ 180], | 30.00th=[ 194], 40.00th=[ 209], 50.00th=[ 220], 60.00th=[ 236], | 70.00th=[ 251], 80.00th=[ 268], 90.00th=[ 296], 95.00th=[ 326], | 99.00th=[ 376], 99.50th=[ 409], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 43, max= 216, per=24.88%, avg=139.07, stdev=36.96, samples=73 iops : min= 10, max= 54, avg=34.30, stdev= 9.24, samples=73 lat (msec) : 100=0.08%, 250=70.78%, 500=29.14% cpu : usr=0.25%, sys=1.81%, ctx=4129, 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=179653: Tue May 12 17:52:01 2026 read: IOPS=33, BW=135KiB/s (138kB/s)(4976KiB/36946msec) slat (usec): min=72, max=69012, avg=16376.95, stdev=9051.32 clat (msec): min=73, max=416, avg=219.24, stdev=54.47 lat (msec): min=88, max=461, avg=235.63, stdev=56.87 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 140], 10.00th=[ 153], 20.00th=[ 174], | 30.00th=[ 188], 40.00th=[ 203], 50.00th=[ 215], 60.00th=[ 228], | 70.00th=[ 243], 80.00th=[ 264], 90.00th=[ 292], 95.00th=[ 317], | 99.00th=[ 376], 99.50th=[ 393], 99.90th=[ 409], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 63, max= 216, per=24.93%, avg=133.85, stdev=33.16, samples=73 iops : min= 15, max= 54, avg=32.99, stdev= 8.30, samples=73 write: IOPS=35, BW=142KiB/s (146kB/s)(5264KiB/36946msec); 0 zone resets slat (usec): min=54, max=18634, avg=424.06, stdev=1298.48 clat (msec): min=81, max=421, avg=225.37, stdev=53.77 lat (msec): min=82, max=423, avg=225.80, stdev=53.80 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 148], 10.00th=[ 159], 20.00th=[ 178], | 30.00th=[ 192], 40.00th=[ 207], 50.00th=[ 222], 60.00th=[ 239], | 70.00th=[ 255], 80.00th=[ 271], 90.00th=[ 296], 95.00th=[ 317], | 99.00th=[ 368], 99.50th=[ 372], 99.90th=[ 414], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 78, max= 245, per=25.42%, avg=142.08, stdev=37.17, samples=73 iops : min= 19, max= 61, avg=35.08, stdev= 9.32, samples=73 lat (msec) : 100=0.31%, 250=70.31%, 500=29.38% cpu : usr=0.22%, sys=1.79%, ctx=4254, 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=179654: Tue May 12 17:52:01 2026 read: IOPS=33, BW=134KiB/s (137kB/s)(4984KiB/37318msec) slat (usec): min=3468, max=80829, avg=16692.58, stdev=9414.81 clat (msec): min=91, max=398, avg=220.51, stdev=55.75 lat (msec): min=104, max=417, avg=237.21, stdev=57.90 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 138], 10.00th=[ 153], 20.00th=[ 174], | 30.00th=[ 188], 40.00th=[ 203], 50.00th=[ 215], 60.00th=[ 232], | 70.00th=[ 247], 80.00th=[ 266], 90.00th=[ 296], 95.00th=[ 321], | 99.00th=[ 372], 99.50th=[ 388], 99.90th=[ 397], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 55, max= 239, per=24.85%, avg=133.47, stdev=34.00, samples=73 iops : min= 13, max= 59, avg=32.90, stdev= 8.52, samples=73 write: IOPS=35, BW=141KiB/s (144kB/s)(5256KiB/37318msec); 0 zone resets slat (usec): min=51, max=14564, avg=378.40, stdev=1005.66 clat (msec): min=22, max=421, avg=226.41, stdev=52.76 lat (msec): min=22, max=421, avg=226.79, stdev=52.70 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 148], 10.00th=[ 165], 20.00th=[ 182], | 30.00th=[ 197], 40.00th=[ 209], 50.00th=[ 222], 60.00th=[ 236], | 70.00th=[ 249], 80.00th=[ 271], 90.00th=[ 300], 95.00th=[ 326], | 99.00th=[ 372], 99.50th=[ 384], 99.90th=[ 397], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 56, max= 240, per=25.06%, avg=140.11, stdev=34.89, samples=73 iops : min= 14, max= 60, avg=34.58, stdev= 8.72, samples=73 lat (msec) : 50=0.04%, 100=0.16%, 250=71.21%, 500=28.59% cpu : usr=0.25%, sys=1.71%, ctx=4085, 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=179655: Tue May 12 17:52:01 2026 read: IOPS=33, BW=136KiB/s (139kB/s)(5060KiB/37307msec) slat (usec): min=324, max=74641, avg=16925.67, stdev=9167.23 clat (msec): min=55, max=413, avg=220.23, stdev=56.06 lat (msec): min=63, max=425, avg=237.16, stdev=57.82 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 140], 10.00th=[ 153], 20.00th=[ 171], | 30.00th=[ 186], 40.00th=[ 201], 50.00th=[ 215], 60.00th=[ 232], | 70.00th=[ 247], 80.00th=[ 266], 90.00th=[ 296], 95.00th=[ 326], | 99.00th=[ 368], 99.50th=[ 380], 99.90th=[ 409], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 63, max= 215, per=25.19%, avg=135.25, stdev=32.51, samples=73 iops : min= 15, max= 53, avg=33.37, stdev= 8.15, samples=73 write: IOPS=34, BW=139KiB/s (142kB/s)(5180KiB/37307msec); 0 zone resets slat (usec): min=48, max=21605, avg=391.23, stdev=1069.35 clat (msec): min=84, max=409, avg=227.10, stdev=52.45 lat (msec): min=85, max=410, avg=227.50, stdev=52.42 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 148], 10.00th=[ 163], 20.00th=[ 182], | 30.00th=[ 194], 40.00th=[ 211], 50.00th=[ 226], 60.00th=[ 239], | 70.00th=[ 251], 80.00th=[ 271], 90.00th=[ 300], 95.00th=[ 321], | 99.00th=[ 368], 99.50th=[ 376], 99.90th=[ 397], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 71, max= 239, per=24.70%, avg=138.08, stdev=33.33, samples=73 iops : min= 17, max= 59, avg=34.05, stdev= 8.37, samples=73 lat (msec) : 100=0.31%, 250=69.77%, 500=29.92% cpu : usr=0.21%, sys=1.98%, ctx=4347, 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=538KiB/s (551kB/s), 134KiB/s-136KiB/s (137kB/s-139kB/s), io=19.6MiB (20.5MB), run=36946-37318msec WRITE: bw=560KiB/s (573kB/s), 139KiB/s-142KiB/s (142kB/s-146kB/s), io=20.4MiB (21.4MB), run=36946-37318msec 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=179665: Tue May 12 17:52:13 2026 read: IOPS=1, BW=58.5MiB/s (61.3MB/s)(40.0MiB/684msec) slat (nsec): min=53401k, max=53401k, avg=53401313.00, stdev= 0.00 clat (nsec): min=611095k, max=611095k, avg=611094778.00, stdev= 0.00 lat (nsec): min=664501k, max=664501k, avg=664501065.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 609], 5.00th=[ 609], 10.00th=[ 609], 20.00th=[ 609], | 30.00th=[ 609], 40.00th=[ 609], 50.00th=[ 609], 60.00th=[ 609], | 70.00th=[ 609], 80.00th=[ 609], 90.00th=[ 609], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.90%, ctx=11, 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=58.5MiB/s (61.3MB/s), 58.5MiB/s-58.5MiB/s (61.3MB/s-61.3MB/s), io=40.0MiB (41.9MB), run=684-684msec 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