== sanity test 398c: run fio to test AIO ================= 12:54:26 (1785084866) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.56729 s, 73.9 MB/s osc.lustre-OST0000-osc-ffff98b854304800.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=179774: Sun Jul 26 12:55:04 2026 write: IOPS=93, BW=374KiB/s (382kB/s)(10.0MiB/27416msec); 0 zone resets slat (usec): min=51, max=24066, avg=266.40, stdev=893.61 clat (msec): min=26, max=391, avg=170.38, stdev=42.83 lat (msec): min=27, max=391, avg=170.65, stdev=42.80 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 115], 10.00th=[ 123], 20.00th=[ 133], | 30.00th=[ 144], 40.00th=[ 155], 50.00th=[ 163], 60.00th=[ 178], | 70.00th=[ 192], 80.00th=[ 207], 90.00th=[ 226], 95.00th=[ 247], | 99.00th=[ 292], 99.50th=[ 317], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 393] bw ( KiB/s): min= 252, max= 518, per=24.99%, avg=372.91, stdev=73.11, samples=54 iops : min= 63, max= 129, avg=92.83, stdev=18.26, samples=54 lat (msec) : 50=0.16%, 100=2.19%, 250=93.40%, 500=4.26% cpu : usr=0.17%, sys=1.28%, ctx=2497, 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=179775: Sun Jul 26 12:55:04 2026 write: IOPS=93, BW=374KiB/s (383kB/s)(10.0MiB/27413msec); 0 zone resets slat (usec): min=38, max=25876, avg=311.70, stdev=1078.73 clat (msec): min=13, max=470, avg=170.43, stdev=44.34 lat (msec): min=14, max=471, avg=170.74, stdev=44.32 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 115], 10.00th=[ 124], 20.00th=[ 133], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 165], 60.00th=[ 178], | 70.00th=[ 190], 80.00th=[ 205], 90.00th=[ 232], 95.00th=[ 247], | 99.00th=[ 296], 99.50th=[ 309], 99.90th=[ 388], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 192, max= 518, per=25.01%, avg=373.09, stdev=72.55, samples=54 iops : min= 48, max= 129, avg=92.85, stdev=18.08, samples=54 lat (msec) : 20=0.08%, 50=0.23%, 100=2.46%, 250=93.09%, 500=4.14% cpu : usr=0.20%, sys=1.51%, ctx=2899, 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=179776: Sun Jul 26 12:55:04 2026 write: IOPS=93, BW=376KiB/s (385kB/s)(10.0MiB/27249msec); 0 zone resets slat (usec): min=52, max=13963, avg=286.14, stdev=908.69 clat (msec): min=29, max=465, avg=169.76, stdev=44.98 lat (msec): min=29, max=465, avg=170.05, stdev=44.94 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 113], 10.00th=[ 123], 20.00th=[ 133], | 30.00th=[ 144], 40.00th=[ 155], 50.00th=[ 167], 60.00th=[ 176], | 70.00th=[ 188], 80.00th=[ 207], 90.00th=[ 230], 95.00th=[ 247], | 99.00th=[ 305], 99.50th=[ 330], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 464] bw ( KiB/s): min= 176, max= 647, per=25.01%, avg=373.20, stdev=87.82, samples=54 iops : min= 44, max= 161, avg=92.87, stdev=21.90, samples=54 lat (msec) : 50=0.16%, 100=2.42%, 250=93.28%, 500=4.14% cpu : usr=0.18%, sys=1.29%, ctx=2583, 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=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=179777: Sun Jul 26 12:55:04 2026 write: IOPS=93, BW=373KiB/s (382kB/s)(10.0MiB/27435msec); 0 zone resets slat (usec): min=39, max=17197, avg=273.38, stdev=878.52 clat (msec): min=48, max=328, avg=170.37, stdev=42.26 lat (msec): min=48, max=328, avg=170.64, stdev=42.23 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 115], 10.00th=[ 123], 20.00th=[ 134], | 30.00th=[ 144], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 178], | 70.00th=[ 192], 80.00th=[ 207], 90.00th=[ 226], 95.00th=[ 245], | 99.00th=[ 275], 99.50th=[ 305], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 248, max= 515, per=24.95%, avg=372.20, stdev=72.66, samples=54 iops : min= 62, max= 128, avg=92.63, stdev=18.11, samples=54 lat (msec) : 50=0.04%, 100=2.50%, 250=93.55%, 500=3.91% cpu : usr=0.15%, sys=1.25%, ctx=2736, 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=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=1493KiB/s (1529kB/s), 373KiB/s-376KiB/s (382kB/s-385kB/s), io=40.0MiB (41.9MB), run=27249-27435msec 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=179791: Sun Jul 26 12:55:43 2026 read: IOPS=40, BW=163KiB/s (167kB/s)(5048KiB/31045msec) slat (usec): min=53, max=47968, avg=14031.83, stdev=7913.45 clat (msec): min=36, max=375, avg=185.55, stdev=49.74 lat (msec): min=39, max=408, avg=199.60, stdev=52.17 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 115], 10.00th=[ 129], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 169], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 209], 80.00th=[ 226], 90.00th=[ 249], 95.00th=[ 275], | 99.00th=[ 330], 99.50th=[ 342], 99.90th=[ 372], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 87, max= 247, per=25.15%, avg=161.95, stdev=36.38, samples=61 iops : min= 21, max= 61, avg=40.05, stdev= 9.17, samples=61 write: IOPS=41, BW=167KiB/s (171kB/s)(5192KiB/31045msec); 0 zone resets slat (usec): min=50, max=19937, avg=273.72, stdev=821.16 clat (msec): min=30, max=373, avg=187.97, stdev=46.67 lat (msec): min=30, max=374, avg=188.24, stdev=46.64 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 121], 10.00th=[ 131], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 194], | 70.00th=[ 209], 80.00th=[ 224], 90.00th=[ 247], 95.00th=[ 271], | 99.00th=[ 317], 99.50th=[ 334], 99.90th=[ 355], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 87, max= 278, per=24.89%, avg=166.74, stdev=45.53, samples=61 iops : min= 21, max= 69, avg=41.26, stdev=11.44, samples=61 lat (msec) : 50=0.27%, 100=1.37%, 250=89.02%, 500=9.34% cpu : usr=0.22%, sys=2.00%, ctx=4453, 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=179792: Sun Jul 26 12:55:43 2026 read: IOPS=39, BW=160KiB/s (164kB/s)(4976KiB/31143msec) slat (usec): min=2729, max=67384, avg=14068.43, stdev=7813.32 clat (msec): min=15, max=407, avg=185.05, stdev=50.04 lat (msec): min=33, max=420, avg=199.12, stdev=52.05 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 114], 10.00th=[ 125], 20.00th=[ 144], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 192], | 70.00th=[ 205], 80.00th=[ 224], 90.00th=[ 249], 95.00th=[ 271], | 99.00th=[ 342], 99.50th=[ 359], 99.90th=[ 401], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 71, max= 239, per=24.67%, avg=158.87, stdev=34.42, samples=61 iops : min= 17, max= 59, avg=39.28, stdev= 8.65, samples=61 write: IOPS=42, BW=169KiB/s (173kB/s)(5264KiB/31143msec); 0 zone resets slat (usec): min=51, max=12869, avg=268.39, stdev=745.73 clat (msec): min=93, max=368, avg=188.61, stdev=46.82 lat (msec): min=93, max=369, avg=188.88, stdev=46.79 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 122], 10.00th=[ 133], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 176], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 207], 80.00th=[ 224], 90.00th=[ 251], 95.00th=[ 275], | 99.00th=[ 330], 99.50th=[ 342], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 87, max= 318, per=25.19%, avg=168.77, stdev=48.86, samples=61 iops : min= 21, max= 79, avg=41.75, stdev=12.26, samples=61 lat (msec) : 20=0.04%, 100=0.82%, 250=89.34%, 500=9.80% cpu : usr=0.23%, sys=1.75%, ctx=4014, 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=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=179793: Sun Jul 26 12:55:43 2026 read: IOPS=40, BW=160KiB/s (164kB/s)(4984KiB/31129msec) slat (usec): min=2127, max=64216, avg=13909.80, stdev=7814.35 clat (msec): min=12, max=432, avg=185.13, stdev=50.42 lat (msec): min=28, max=455, avg=199.05, stdev=52.41 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 115], 10.00th=[ 128], 20.00th=[ 144], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 192], | 70.00th=[ 207], 80.00th=[ 224], 90.00th=[ 249], 95.00th=[ 275], | 99.00th=[ 338], 99.50th=[ 388], 99.90th=[ 418], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 71, max= 280, per=24.87%, avg=160.16, stdev=38.79, samples=61 iops : min= 17, max= 70, avg=39.61, stdev= 9.75, samples=61 write: IOPS=42, BW=169KiB/s (173kB/s)(5256KiB/31129msec); 0 zone resets slat (usec): min=40, max=12679, avg=268.25, stdev=670.47 clat (msec): min=91, max=432, avg=188.36, stdev=44.25 lat (msec): min=91, max=432, avg=188.63, stdev=44.24 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 124], 10.00th=[ 138], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 209], 80.00th=[ 222], 90.00th=[ 245], 95.00th=[ 268], | 99.00th=[ 317], 99.50th=[ 342], 99.90th=[ 409], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 71, max= 260, per=25.11%, avg=168.26, stdev=43.08, samples=61 iops : min= 17, max= 65, avg=41.64, stdev=10.81, samples=61 lat (msec) : 20=0.04%, 50=0.08%, 100=0.90%, 250=89.65%, 500=9.34% cpu : usr=0.22%, sys=1.73%, ctx=4198, 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=179794: Sun Jul 26 12:55:43 2026 read: IOPS=40, BW=162KiB/s (166kB/s)(5060KiB/31151msec) slat (usec): min=2503, max=51427, avg=13917.06, stdev=7842.19 clat (msec): min=37, max=411, avg=185.95, stdev=49.73 lat (msec): min=49, max=445, avg=199.88, stdev=51.82 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 115], 10.00th=[ 131], 20.00th=[ 146], | 30.00th=[ 161], 40.00th=[ 169], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 205], 80.00th=[ 222], 90.00th=[ 255], 95.00th=[ 279], | 99.00th=[ 338], 99.50th=[ 355], 99.90th=[ 405], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 79, max= 262, per=25.10%, avg=161.62, stdev=36.53, samples=61 iops : min= 19, max= 65, avg=39.97, stdev= 9.16, samples=61 write: IOPS=41, BW=166KiB/s (170kB/s)(5180KiB/31151msec); 0 zone resets slat (usec): min=46, max=15663, avg=316.13, stdev=977.10 clat (msec): min=30, max=385, avg=188.03, stdev=44.54 lat (msec): min=30, max=385, avg=188.35, stdev=44.54 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 125], 10.00th=[ 138], 20.00th=[ 153], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 186], 60.00th=[ 194], | 70.00th=[ 207], 80.00th=[ 224], 90.00th=[ 247], 95.00th=[ 268], | 99.00th=[ 313], 99.50th=[ 338], 99.90th=[ 363], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 71, max= 264, per=24.61%, avg=164.92, stdev=40.22, samples=61 iops : min= 17, max= 66, avg=40.82, stdev=10.14, samples=61 lat (msec) : 50=0.16%, 100=1.09%, 250=88.59%, 500=10.16% cpu : usr=0.26%, sys=1.85%, ctx=4462, 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=644KiB/s (660kB/s), 160KiB/s-163KiB/s (164kB/s-167kB/s), io=19.6MiB (20.5MB), run=31045-31151msec WRITE: bw=671KiB/s (687kB/s), 166KiB/s-169KiB/s (170kB/s-173kB/s), io=20.4MiB (21.4MB), run=31045-31151msec 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=179803: Sun Jul 26 12:55:54 2026 read: IOPS=1, BW=56.3MiB/s (59.1MB/s)(40.0MiB/710msec) slat (nsec): min=38861k, max=38861k, avg=38861446.00, stdev= 0.00 clat (nsec): min=637586k, max=637586k, avg=637585997.00, stdev= 0.00 lat (nsec): min=676453k, max=676453k, avg=676453317.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 642], 5.00th=[ 642], 10.00th=[ 642], 20.00th=[ 642], | 30.00th=[ 642], 40.00th=[ 642], 50.00th=[ 642], 60.00th=[ 642], | 70.00th=[ 642], 80.00th=[ 642], 90.00th=[ 642], 95.00th=[ 642], | 99.00th=[ 642], 99.50th=[ 642], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.41%, ctx=7, 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=56.3MiB/s (59.1MB/s), 56.3MiB/s-56.3MiB/s (59.1MB/s-59.1MB/s), io=40.0MiB (41.9MB), run=710-710msec 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