== sanity test 398c: run fio to test AIO ================= 11:41:36 (1782488496) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.642881 s, 65.2 MB/s osc.lustre-OST0000-osc-ffff8df6f24ff800.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=151735: Fri Jun 26 11:42:46 2026 write: IOPS=43, BW=174KiB/s (179kB/s)(10.0MiB/58709msec); 0 zone resets slat (usec): min=37, max=4835, avg=237.43, stdev=282.74 clat (msec): min=82, max=687, avg=366.50, stdev=90.99 lat (msec): min=82, max=687, avg=366.74, stdev=91.00 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 236], 10.00th=[ 257], 20.00th=[ 288], | 30.00th=[ 313], 40.00th=[ 334], 50.00th=[ 355], 60.00th=[ 384], | 70.00th=[ 409], 80.00th=[ 439], 90.00th=[ 489], 95.00th=[ 542], | 99.00th=[ 609], 99.50th=[ 642], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 95, max= 264, per=24.98%, avg=173.62, stdev=41.45, samples=117 iops : min= 23, max= 66, avg=43.17, stdev=10.43, samples=117 lat (msec) : 100=0.08%, 250=7.46%, 500=83.71%, 750=8.75% cpu : usr=0.08%, sys=0.71%, ctx=3003, 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=151736: Fri Jun 26 11:42:46 2026 write: IOPS=43, BW=174KiB/s (178kB/s)(10.0MiB/58854msec); 0 zone resets slat (usec): min=37, max=4043, avg=221.62, stdev=260.27 clat (msec): min=175, max=684, avg=366.88, stdev=88.19 lat (msec): min=175, max=685, avg=367.11, stdev=88.19 clat percentiles (msec): | 1.00th=[ 209], 5.00th=[ 243], 10.00th=[ 259], 20.00th=[ 292], | 30.00th=[ 317], 40.00th=[ 334], 50.00th=[ 355], 60.00th=[ 380], | 70.00th=[ 405], 80.00th=[ 439], 90.00th=[ 489], 95.00th=[ 542], | 99.00th=[ 584], 99.50th=[ 600], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 72, max= 288, per=24.95%, avg=173.42, stdev=42.16, samples=117 iops : min= 18, max= 72, avg=43.12, stdev=10.61, samples=117 lat (msec) : 250=6.21%, 500=85.39%, 750=8.40% cpu : usr=0.07%, sys=0.70%, ctx=2988, 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=151737: Fri Jun 26 11:42:46 2026 write: IOPS=43, BW=174KiB/s (178kB/s)(10.0MiB/58837msec); 0 zone resets slat (usec): min=37, max=8720, avg=233.80, stdev=360.08 clat (msec): min=129, max=719, avg=366.51, stdev=89.78 lat (msec): min=130, max=719, avg=366.75, stdev=89.78 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 236], 10.00th=[ 257], 20.00th=[ 288], | 30.00th=[ 317], 40.00th=[ 334], 50.00th=[ 355], 60.00th=[ 380], | 70.00th=[ 405], 80.00th=[ 435], 90.00th=[ 493], 95.00th=[ 542], | 99.00th=[ 600], 99.50th=[ 609], 99.90th=[ 676], 99.95th=[ 701], | 99.99th=[ 718] bw ( KiB/s): min= 63, max= 256, per=24.98%, avg=173.62, stdev=41.90, samples=117 iops : min= 15, max= 64, avg=43.17, stdev=10.54, samples=117 lat (msec) : 250=7.46%, 500=83.32%, 750=9.22% cpu : usr=0.09%, sys=0.68%, ctx=2904, 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=151738: Fri Jun 26 11:42:46 2026 write: IOPS=43, BW=174KiB/s (178kB/s)(10.0MiB/58851msec); 0 zone resets slat (usec): min=35, max=5099, avg=218.29, stdev=277.19 clat (msec): min=159, max=698, avg=366.70, stdev=90.55 lat (msec): min=159, max=699, avg=366.92, stdev=90.55 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 239], 10.00th=[ 255], 20.00th=[ 288], | 30.00th=[ 313], 40.00th=[ 334], 50.00th=[ 355], 60.00th=[ 380], | 70.00th=[ 409], 80.00th=[ 439], 90.00th=[ 493], 95.00th=[ 535], | 99.00th=[ 609], 99.50th=[ 659], 99.90th=[ 693], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 80, max= 280, per=24.98%, avg=173.60, stdev=43.23, samples=117 iops : min= 20, max= 70, avg=43.18, stdev=10.87, samples=117 lat (msec) : 250=7.77%, 500=83.40%, 750=8.83% cpu : usr=0.07%, sys=0.67%, ctx=2929, 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=696KiB/s (713kB/s), 174KiB/s-174KiB/s (178kB/s-179kB/s), io=40.0MiB (41.9MB), run=58709-58854msec 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=151756: Fri Jun 26 11:43:13 2026 read: IOPS=54, BW=218KiB/s (223kB/s)(5048KiB/23182msec) slat (usec): min=943, max=12973, avg=2972.04, stdev=1541.27 clat (msec): min=2, max=248, avg=91.81, stdev=28.89 lat (msec): min=5, max=251, avg=94.78, stdev=29.47 clat percentiles (msec): | 1.00th=[ 35], 5.00th=[ 59], 10.00th=[ 65], 20.00th=[ 71], | 30.00th=[ 77], 40.00th=[ 81], 50.00th=[ 86], 60.00th=[ 92], | 70.00th=[ 100], 80.00th=[ 110], 90.00th=[ 131], 95.00th=[ 146], | 99.00th=[ 194], 99.50th=[ 201], 99.90th=[ 245], 99.95th=[ 249], | 99.99th=[ 249] bw ( KiB/s): min= 88, max= 368, per=25.15%, avg=217.52, stdev=63.67, samples=46 iops : min= 22, max= 92, avg=54.35, stdev=15.93, samples=46 write: IOPS=55, BW=224KiB/s (229kB/s)(5192KiB/23182msec); 0 zone resets slat (usec): min=56, max=3023, avg=197.01, stdev=135.55 clat (msec): min=58, max=422, avg=192.36, stdev=56.65 lat (msec): min=58, max=423, avg=192.56, stdev=56.66 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 113], 10.00th=[ 126], 20.00th=[ 148], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 182], 60.00th=[ 194], | 70.00th=[ 209], 80.00th=[ 236], 90.00th=[ 271], 95.00th=[ 300], | 99.00th=[ 355], 99.50th=[ 384], 99.90th=[ 414], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 120, max= 336, per=24.83%, avg=223.67, stdev=55.57, samples=46 iops : min= 30, max= 84, avg=55.89, stdev=13.92, samples=46 lat (msec) : 4=0.12%, 10=0.08%, 20=0.20%, 50=0.35%, 100=35.43% lat (msec) : 250=55.62%, 500=8.20% cpu : usr=0.20%, sys=2.00%, ctx=4875, 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=151757: Fri Jun 26 11:43:13 2026 read: IOPS=53, BW=215KiB/s (220kB/s)(4976KiB/23160msec) slat (usec): min=49, max=12304, avg=2999.40, stdev=1460.05 clat (msec): min=2, max=222, avg=91.09, stdev=29.05 lat (msec): min=5, max=227, avg=94.09, stdev=29.65 clat percentiles (msec): | 1.00th=[ 22], 5.00th=[ 59], 10.00th=[ 64], 20.00th=[ 70], | 30.00th=[ 75], 40.00th=[ 80], 50.00th=[ 85], 60.00th=[ 91], | 70.00th=[ 99], 80.00th=[ 110], 90.00th=[ 131], 95.00th=[ 144], | 99.00th=[ 192], 99.50th=[ 207], 99.90th=[ 220], 99.95th=[ 224], | 99.99th=[ 224] bw ( KiB/s): min= 120, max= 416, per=24.77%, avg=214.26, stdev=67.38, samples=46 iops : min= 30, max= 104, avg=53.54, stdev=16.85, samples=46 write: IOPS=56, BW=227KiB/s (233kB/s)(5264KiB/23160msec); 0 zone resets slat (usec): min=45, max=1151, avg=195.68, stdev=109.43 clat (msec): min=68, max=412, avg=192.18, stdev=56.27 lat (msec): min=68, max=412, avg=192.38, stdev=56.28 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 110], 10.00th=[ 125], 20.00th=[ 148], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 197], | 70.00th=[ 209], 80.00th=[ 236], 90.00th=[ 275], 95.00th=[ 296], | 99.00th=[ 363], 99.50th=[ 380], 99.90th=[ 401], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 128, max= 328, per=25.15%, avg=226.57, stdev=50.69, samples=46 iops : min= 32, max= 82, avg=56.61, stdev=12.68, samples=46 lat (msec) : 4=0.08%, 10=0.08%, 20=0.27%, 50=0.39%, 100=35.59% lat (msec) : 250=55.62%, 500=7.97% cpu : usr=0.20%, sys=2.01%, ctx=4865, 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=151758: Fri Jun 26 11:43:13 2026 read: IOPS=53, BW=215KiB/s (220kB/s)(4984KiB/23182msec) slat (usec): min=1023, max=18642, avg=2989.56, stdev=1476.07 clat (msec): min=3, max=234, avg=91.98, stdev=29.29 lat (msec): min=6, max=237, avg=94.97, stdev=29.92 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 60], 10.00th=[ 65], 20.00th=[ 70], | 30.00th=[ 77], 40.00th=[ 81], 50.00th=[ 85], 60.00th=[ 92], | 70.00th=[ 101], 80.00th=[ 111], 90.00th=[ 131], 95.00th=[ 146], | 99.00th=[ 197], 99.50th=[ 207], 99.90th=[ 220], 99.95th=[ 234], | 99.99th=[ 234] bw ( KiB/s): min= 120, max= 360, per=24.89%, avg=215.33, stdev=51.83, samples=46 iops : min= 30, max= 90, avg=53.80, stdev=12.96, samples=46 write: IOPS=56, BW=227KiB/s (232kB/s)(5256KiB/23182msec); 0 zone resets slat (usec): min=54, max=2552, avg=201.50, stdev=130.58 clat (msec): min=83, max=414, avg=190.95, stdev=54.98 lat (msec): min=83, max=415, avg=191.16, stdev=54.98 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 112], 10.00th=[ 125], 20.00th=[ 146], | 30.00th=[ 161], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 209], 80.00th=[ 234], 90.00th=[ 271], 95.00th=[ 296], | 99.00th=[ 351], 99.50th=[ 376], 99.90th=[ 414], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 104, max= 344, per=25.07%, avg=225.87, stdev=61.06, samples=46 iops : min= 26, max= 86, avg=56.43, stdev=15.29, samples=46 lat (msec) : 4=0.04%, 10=0.04%, 20=0.16%, 50=0.51%, 100=34.14% lat (msec) : 250=57.50%, 500=7.62% cpu : usr=0.22%, sys=2.01%, ctx=4856, 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=151759: Fri Jun 26 11:43:13 2026 read: IOPS=54, BW=219KiB/s (224kB/s)(5060KiB/23112msec) slat (usec): min=1041, max=14762, avg=2917.75, stdev=1438.18 clat (msec): min=2, max=243, avg=91.46, stdev=28.57 lat (msec): min=4, max=245, avg=94.38, stdev=29.16 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 59], 10.00th=[ 64], 20.00th=[ 70], | 30.00th=[ 77], 40.00th=[ 82], 50.00th=[ 86], 60.00th=[ 92], | 70.00th=[ 99], 80.00th=[ 109], 90.00th=[ 129], 95.00th=[ 148], | 99.00th=[ 192], 99.50th=[ 207], 99.90th=[ 243], 99.95th=[ 245], | 99.99th=[ 245] bw ( KiB/s): min= 88, max= 360, per=25.33%, avg=219.13, stdev=65.26, samples=45 iops : min= 22, max= 90, avg=54.76, stdev=16.32, samples=45 write: IOPS=56, BW=224KiB/s (230kB/s)(5180KiB/23112msec); 0 zone resets slat (usec): min=48, max=3660, avg=198.40, stdev=145.79 clat (msec): min=85, max=410, avg=192.29, stdev=56.47 lat (msec): min=85, max=410, avg=192.49, stdev=56.48 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 114], 10.00th=[ 125], 20.00th=[ 146], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 209], 80.00th=[ 234], 90.00th=[ 275], 95.00th=[ 300], | 99.00th=[ 359], 99.50th=[ 384], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 128, max= 352, per=24.71%, avg=222.64, stdev=54.40, samples=45 iops : min= 32, max= 88, avg=55.64, stdev=13.61, samples=45 lat (msec) : 4=0.08%, 10=0.08%, 20=0.08%, 50=0.74%, 100=35.82% lat (msec) : 250=55.12%, 500=8.09% cpu : usr=0.21%, sys=2.01%, ctx=4801, 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=866KiB/s (886kB/s), 215KiB/s-219KiB/s (220kB/s-224kB/s), io=19.6MiB (20.5MB), run=23112-23182msec WRITE: bw=901KiB/s (923kB/s), 224KiB/s-227KiB/s (229kB/s-233kB/s), io=20.4MiB (21.4MB), run=23112-23182msec 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=151766: Fri Jun 26 11:43:16 2026 read: IOPS=8, BW=336MiB/s (352MB/s)(40.0MiB/119msec) slat (nsec): min=11429k, max=11429k, avg=11429092.00, stdev= 0.00 clat (nsec): min=101938k, max=101938k, avg=101937944.00, stdev= 0.00 lat (nsec): min=113372k, max=113372k, avg=113372066.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 103], 10.00th=[ 103], 20.00th=[ 103], | 30.00th=[ 103], 40.00th=[ 103], 50.00th=[ 103], 60.00th=[ 103], | 70.00th=[ 103], 80.00th=[ 103], 90.00th=[ 103], 95.00th=[ 103], | 99.00th=[ 103], 99.50th=[ 103], 99.90th=[ 103], 99.95th=[ 103], | 99.99th=[ 103] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=7.63%, ctx=42, 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=336MiB/s (352MB/s), 336MiB/s-336MiB/s (352MB/s-352MB/s), io=40.0MiB (41.9MB), run=119-119msec 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