== sanity test 398c: run fio to test AIO ================= 12:08:43 (1782490123) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.641128 s, 65.4 MB/s osc.lustre-OST0000-osc-ffff9150c706a800.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=185691: Fri Jun 26 12:09:22 2026 write: IOPS=92, BW=372KiB/s (381kB/s)(10.0MiB/27555msec); 0 zone resets slat (usec): min=38, max=17104, avg=211.63, stdev=594.98 clat (msec): min=26, max=310, avg=170.90, stdev=45.29 lat (msec): min=26, max=311, avg=171.11, stdev=45.28 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 107], 10.00th=[ 120], 20.00th=[ 134], | 30.00th=[ 146], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 174], | 70.00th=[ 188], 80.00th=[ 209], 90.00th=[ 230], 95.00th=[ 253], | 99.00th=[ 296], 99.50th=[ 300], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 313] bw ( KiB/s): min= 234, max= 520, per=24.80%, avg=368.54, stdev=81.84, samples=54 iops : min= 58, max= 130, avg=91.78, stdev=20.50, samples=54 lat (msec) : 50=0.47%, 100=2.66%, 250=90.78%, 500=6.09% cpu : usr=0.13%, sys=1.03%, ctx=1526, 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=185692: Fri Jun 26 12:09:22 2026 write: IOPS=93, BW=372KiB/s (381kB/s)(10.0MiB/27522msec); 0 zone resets slat (usec): min=37, max=12877, avg=290.33, stdev=759.92 clat (msec): min=23, max=320, avg=170.60, stdev=44.13 lat (msec): min=23, max=320, avg=170.90, stdev=44.11 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 108], 10.00th=[ 122], 20.00th=[ 136], | 30.00th=[ 146], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 188], 80.00th=[ 207], 90.00th=[ 228], 95.00th=[ 257], | 99.00th=[ 296], 99.50th=[ 296], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 321] bw ( KiB/s): min= 232, max= 544, per=24.93%, avg=370.46, stdev=74.51, samples=54 iops : min= 58, max= 136, avg=92.26, stdev=18.64, samples=54 lat (msec) : 50=0.20%, 100=2.73%, 250=91.25%, 500=5.82% cpu : usr=0.17%, sys=1.33%, ctx=2953, 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=185693: Fri Jun 26 12:09:22 2026 write: IOPS=93, BW=372KiB/s (381kB/s)(10.0MiB/27510msec); 0 zone resets slat (usec): min=38, max=15378, avg=288.17, stdev=869.31 clat (msec): min=39, max=316, avg=171.38, stdev=43.57 lat (msec): min=39, max=316, avg=171.67, stdev=43.55 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 115], 10.00th=[ 123], 20.00th=[ 136], | 30.00th=[ 144], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 188], 80.00th=[ 207], 90.00th=[ 230], 95.00th=[ 257], | 99.00th=[ 296], 99.50th=[ 296], 99.90th=[ 313], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 191, max= 632, per=25.02%, avg=371.76, stdev=83.58, samples=54 iops : min= 47, max= 158, avg=92.57, stdev=20.94, samples=54 lat (msec) : 50=0.04%, 100=1.84%, 250=92.42%, 500=5.70% cpu : usr=0.15%, sys=1.18%, ctx=2532, 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=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=185694: Fri Jun 26 12:09:22 2026 write: IOPS=92, BW=372KiB/s (381kB/s)(10.0MiB/27550msec); 0 zone resets slat (usec): min=39, max=11961, avg=217.74, stdev=670.07 clat (msec): min=22, max=331, avg=170.54, stdev=43.58 lat (msec): min=22, max=332, avg=170.76, stdev=43.55 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 113], 10.00th=[ 122], 20.00th=[ 134], | 30.00th=[ 146], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 186], 80.00th=[ 209], 90.00th=[ 230], 95.00th=[ 251], | 99.00th=[ 292], 99.50th=[ 292], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 334] bw ( KiB/s): min= 160, max= 552, per=24.95%, avg=370.70, stdev=83.96, samples=54 iops : min= 40, max= 138, avg=92.31, stdev=21.01, samples=54 lat (msec) : 50=0.08%, 100=2.81%, 250=92.23%, 500=4.88% cpu : usr=0.12%, sys=0.93%, ctx=2166, 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=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=1486KiB/s (1522kB/s), 372KiB/s-372KiB/s (381kB/s-381kB/s), io=40.0MiB (41.9MB), run=27510-27555msec 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=185709: Fri Jun 26 12:10:04 2026 read: IOPS=38, BW=155KiB/s (158kB/s)(5048KiB/32618msec) slat (usec): min=3241, max=72125, avg=14972.73, stdev=8787.03 clat (msec): min=22, max=362, avg=191.20, stdev=47.25 lat (msec): min=33, max=393, avg=206.18, stdev=48.88 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 124], 10.00th=[ 136], 20.00th=[ 153], | 30.00th=[ 167], 40.00th=[ 178], 50.00th=[ 188], 60.00th=[ 201], | 70.00th=[ 213], 80.00th=[ 228], 90.00th=[ 253], 95.00th=[ 275], | 99.00th=[ 317], 99.50th=[ 338], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 44, max= 247, per=24.89%, avg=153.08, stdev=36.63, samples=64 iops : min= 11, max= 61, avg=37.81, stdev= 9.18, samples=64 write: IOPS=39, BW=159KiB/s (163kB/s)(5192KiB/32618msec); 0 zone resets slat (usec): min=51, max=18376, avg=293.26, stdev=833.92 clat (msec): min=34, max=365, avg=198.04, stdev=47.13 lat (msec): min=35, max=366, avg=198.34, stdev=47.11 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 130], 10.00th=[ 144], 20.00th=[ 161], | 30.00th=[ 171], 40.00th=[ 184], 50.00th=[ 192], 60.00th=[ 205], | 70.00th=[ 218], 80.00th=[ 234], 90.00th=[ 259], 95.00th=[ 292], | 99.00th=[ 334], 99.50th=[ 342], 99.90th=[ 359], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 44, max= 240, per=24.71%, avg=158.14, stdev=36.18, samples=64 iops : min= 11, max= 60, avg=39.08, stdev= 9.05, samples=64 lat (msec) : 50=0.35%, 100=0.59%, 250=87.34%, 500=11.72% cpu : usr=0.22%, sys=1.77%, ctx=3890, 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=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=185710: Fri Jun 26 12:10:04 2026 read: IOPS=38, BW=153KiB/s (157kB/s)(4976KiB/32426msec) slat (usec): min=89, max=73054, avg=15228.89, stdev=8981.65 clat (msec): min=18, max=362, avg=190.69, stdev=47.49 lat (msec): min=18, max=373, avg=205.93, stdev=49.13 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 125], 10.00th=[ 136], 20.00th=[ 153], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 188], 60.00th=[ 199], | 70.00th=[ 211], 80.00th=[ 228], 90.00th=[ 255], 95.00th=[ 279], | 99.00th=[ 321], 99.50th=[ 334], 99.90th=[ 351], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 95, max= 223, per=24.84%, avg=152.78, stdev=30.17, samples=64 iops : min= 23, max= 55, avg=37.73, stdev= 7.61, samples=64 write: IOPS=40, BW=162KiB/s (166kB/s)(5264KiB/32426msec); 0 zone resets slat (usec): min=40, max=21558, avg=280.44, stdev=845.24 clat (msec): min=70, max=350, avg=198.90, stdev=46.27 lat (msec): min=70, max=351, avg=199.18, stdev=46.23 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 133], 10.00th=[ 144], 20.00th=[ 161], | 30.00th=[ 174], 40.00th=[ 184], 50.00th=[ 194], 60.00th=[ 205], | 70.00th=[ 218], 80.00th=[ 236], 90.00th=[ 264], 95.00th=[ 288], | 99.00th=[ 330], 99.50th=[ 334], 99.90th=[ 347], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 88, max= 239, per=25.37%, avg=162.34, stdev=36.20, samples=64 iops : min= 22, max= 59, avg=40.12, stdev= 9.03, samples=64 lat (msec) : 20=0.08%, 50=0.08%, 100=0.82%, 250=86.60%, 500=12.42% cpu : usr=0.29%, sys=1.83%, ctx=4164, 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=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=185711: Fri Jun 26 12:10:04 2026 read: IOPS=38, BW=153KiB/s (157kB/s)(4984KiB/32508msec) slat (usec): min=2741, max=75277, avg=14979.85, stdev=8882.99 clat (msec): min=21, max=373, avg=191.24, stdev=46.67 lat (msec): min=36, max=390, avg=206.22, stdev=48.52 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 125], 10.00th=[ 138], 20.00th=[ 153], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 188], 60.00th=[ 199], | 70.00th=[ 211], 80.00th=[ 226], 90.00th=[ 257], 95.00th=[ 271], | 99.00th=[ 321], 99.50th=[ 338], 99.90th=[ 368], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 59, max= 263, per=24.98%, avg=153.63, stdev=37.12, samples=64 iops : min= 14, max= 65, avg=37.94, stdev= 9.29, samples=64 write: IOPS=40, BW=162KiB/s (166kB/s)(5256KiB/32508msec); 0 zone resets slat (usec): min=39, max=12817, avg=299.57, stdev=847.80 clat (msec): min=49, max=373, avg=197.57, stdev=45.26 lat (msec): min=49, max=373, avg=197.88, stdev=45.27 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 133], 10.00th=[ 146], 20.00th=[ 161], | 30.00th=[ 174], 40.00th=[ 182], 50.00th=[ 192], 60.00th=[ 203], | 70.00th=[ 218], 80.00th=[ 232], 90.00th=[ 255], 95.00th=[ 284], | 99.00th=[ 334], 99.50th=[ 359], 99.90th=[ 372], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 74, max= 247, per=25.20%, avg=161.27, stdev=36.62, samples=64 iops : min= 18, max= 61, avg=39.84, stdev= 9.21, samples=64 lat (msec) : 50=0.16%, 100=0.55%, 250=87.77%, 500=11.52% cpu : usr=0.24%, sys=1.83%, ctx=4024, 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=185712: Fri Jun 26 12:10:04 2026 read: IOPS=38, BW=155KiB/s (159kB/s)(5060KiB/32606msec) slat (usec): min=2411, max=65459, avg=15015.03, stdev=8994.19 clat (msec): min=86, max=373, avg=192.12, stdev=43.18 lat (msec): min=102, max=402, avg=207.15, stdev=44.74 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 130], 10.00th=[ 140], 20.00th=[ 155], | 30.00th=[ 167], 40.00th=[ 180], 50.00th=[ 188], 60.00th=[ 201], | 70.00th=[ 211], 80.00th=[ 226], 90.00th=[ 249], 95.00th=[ 268], | 99.00th=[ 317], 99.50th=[ 338], 99.90th=[ 372], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 52, max= 231, per=25.13%, avg=154.56, stdev=35.54, samples=64 iops : min= 13, max= 57, avg=38.17, stdev= 8.87, samples=64 write: IOPS=39, BW=159KiB/s (163kB/s)(5180KiB/32606msec); 0 zone resets slat (usec): min=44, max=11891, avg=287.66, stdev=748.43 clat (msec): min=102, max=431, avg=197.91, stdev=47.63 lat (msec): min=102, max=431, avg=198.20, stdev=47.62 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 132], 10.00th=[ 142], 20.00th=[ 157], | 30.00th=[ 169], 40.00th=[ 182], 50.00th=[ 192], 60.00th=[ 205], | 70.00th=[ 218], 80.00th=[ 234], 90.00th=[ 257], 95.00th=[ 284], | 99.00th=[ 351], 99.50th=[ 376], 99.90th=[ 418], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 81, max= 239, per=24.65%, avg=157.77, stdev=34.81, samples=64 iops : min= 20, max= 59, avg=38.97, stdev= 8.73, samples=64 lat (msec) : 100=0.23%, 250=89.22%, 500=10.55% cpu : usr=0.24%, sys=1.88%, ctx=4161, 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=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=615KiB/s (630kB/s), 153KiB/s-155KiB/s (157kB/s-159kB/s), io=19.6MiB (20.5MB), run=32426-32618msec WRITE: bw=641KiB/s (656kB/s), 159KiB/s-162KiB/s (163kB/s-166kB/s), io=20.4MiB (21.4MB), run=32426-32618msec 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=185720: Fri Jun 26 12:10:15 2026 read: IOPS=1, BW=63.5MiB/s (66.6MB/s)(40.0MiB/630msec) slat (nsec): min=47079k, max=47079k, avg=47079247.00, stdev= 0.00 clat (nsec): min=552607k, max=552607k, avg=552607098.00, stdev= 0.00 lat (nsec): min=599722k, max=599722k, avg=599721530.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 550], 5.00th=[ 550], 10.00th=[ 550], 20.00th=[ 550], | 30.00th=[ 550], 40.00th=[ 550], 50.00th=[ 550], 60.00th=[ 550], | 70.00th=[ 550], 80.00th=[ 550], 90.00th=[ 550], 95.00th=[ 550], | 99.00th=[ 550], 99.50th=[ 550], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] lat (msec) : 750=100.00% cpu : usr=0.16%, sys=2.23%, ctx=11, 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=63.5MiB/s (66.6MB/s), 63.5MiB/s-63.5MiB/s (66.6MB/s-66.6MB/s), io=40.0MiB (41.9MB), run=630-630msec 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