== sanity test 398c: run fio to test AIO ================= 20:41:46 (1788655306) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.403596 s, 104 MB/s osc.lustre-OST0000-osc-ffff8d8085014800.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=145586: Sat Sep 5 20:44:46 2026 write: IOPS=15, BW=60.6KiB/s (62.1kB/s)(10.0MiB/168879msec); 0 zone resets slat (usec): min=23, max=16778, avg=281.00, stdev=945.63 clat (msec): min=194, max=2294, avg=1053.89, stdev=283.15 lat (msec): min=196, max=2310, avg=1054.17, stdev=283.19 clat percentiles (msec): | 1.00th=[ 347], 5.00th=[ 625], 10.00th=[ 735], 20.00th=[ 835], | 30.00th=[ 911], 40.00th=[ 978], 50.00th=[ 1045], 60.00th=[ 1116], | 70.00th=[ 1183], 80.00th=[ 1267], 90.00th=[ 1385], 95.00th=[ 1519], | 99.00th=[ 1938], 99.50th=[ 2123], 99.90th=[ 2265], 99.95th=[ 2265], | 99.99th=[ 2299] bw ( KiB/s): min= 7, max= 247, per=25.18%, avg=60.92, stdev=29.47, samples=330 iops : min= 1, max= 61, avg=14.72, stdev= 7.38, samples=330 lat (msec) : 250=0.04%, 500=2.70%, 750=8.52%, 1000=32.30%, 2000=55.66% lat (msec) : >=2000=0.78% cpu : usr=0.05%, sys=0.27%, ctx=1714, 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=145587: Sat Sep 5 20:44:46 2026 write: IOPS=15, BW=60.7KiB/s (62.2kB/s)(10.0MiB/168656msec); 0 zone resets slat (usec): min=23, max=13827, avg=255.46, stdev=807.65 clat (msec): min=236, max=2352, avg=1053.40, stdev=295.71 lat (msec): min=237, max=2352, avg=1053.66, stdev=295.77 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 625], 10.00th=[ 718], 20.00th=[ 835], | 30.00th=[ 902], 40.00th=[ 978], 50.00th=[ 1045], 60.00th=[ 1116], | 70.00th=[ 1183], 80.00th=[ 1267], 90.00th=[ 1385], 95.00th=[ 1536], | 99.00th=[ 2056], 99.50th=[ 2165], 99.90th=[ 2333], 99.95th=[ 2333], | 99.99th=[ 2366] bw ( KiB/s): min= 7, max= 222, per=25.81%, avg=62.46, stdev=30.61, samples=322 iops : min= 1, max= 55, avg=15.10, stdev= 7.67, samples=322 lat (msec) : 250=0.62%, 500=2.54%, 750=9.26%, 1000=30.94%, 2000=55.51% lat (msec) : >=2000=1.13% cpu : usr=0.07%, sys=0.25%, ctx=1673, 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=145588: Sat Sep 5 20:44:46 2026 write: IOPS=15, BW=60.6KiB/s (62.1kB/s)(10.0MiB/168876msec); 0 zone resets slat (usec): min=29, max=20571, avg=270.92, stdev=917.07 clat (msec): min=319, max=2353, avg=1053.68, stdev=287.09 lat (msec): min=320, max=2354, avg=1053.96, stdev=287.16 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 600], 10.00th=[ 726], 20.00th=[ 835], | 30.00th=[ 911], 40.00th=[ 978], 50.00th=[ 1036], 60.00th=[ 1099], | 70.00th=[ 1183], 80.00th=[ 1267], 90.00th=[ 1368], 95.00th=[ 1536], | 99.00th=[ 1955], 99.50th=[ 2106], 99.90th=[ 2333], 99.95th=[ 2333], | 99.99th=[ 2366] bw ( KiB/s): min= 7, max= 254, per=25.98%, avg=62.87, stdev=31.44, samples=320 iops : min= 1, max= 63, avg=15.21, stdev= 7.86, samples=320 lat (msec) : 500=2.62%, 750=9.53%, 1000=31.80%, 2000=55.23%, >=2000=0.82% cpu : usr=0.06%, sys=0.26%, ctx=1643, 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=145589: Sat Sep 5 20:44:46 2026 write: IOPS=15, BW=60.7KiB/s (62.1kB/s)(10.0MiB/168820msec); 0 zone resets slat (usec): min=29, max=12403, avg=262.39, stdev=714.11 clat (msec): min=73, max=2267, avg=1053.33, stdev=285.92 lat (msec): min=73, max=2267, avg=1053.60, stdev=285.95 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 609], 10.00th=[ 735], 20.00th=[ 827], | 30.00th=[ 902], 40.00th=[ 978], 50.00th=[ 1045], 60.00th=[ 1116], | 70.00th=[ 1183], 80.00th=[ 1267], 90.00th=[ 1385], 95.00th=[ 1552], | 99.00th=[ 1921], 99.50th=[ 2005], 99.90th=[ 2198], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 7, max= 223, per=25.34%, avg=61.33, stdev=28.43, samples=328 iops : min= 1, max= 55, avg=14.82, stdev= 7.12, samples=328 lat (msec) : 100=0.04%, 250=0.04%, 500=2.97%, 750=8.32%, 1000=32.81% lat (msec) : 2000=55.35%, >=2000=0.47% cpu : usr=0.05%, sys=0.27%, ctx=1754, 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 Run status group 0 (all jobs): WRITE: bw=243KiB/s (248kB/s), 60.6KiB/s-60.7KiB/s (62.1kB/s-62.2kB/s), io=40.0MiB (41.9MB), run=168656-168879msec 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=145632: Sat Sep 5 20:46:46 2026 read: IOPS=11, BW=45.5KiB/s (46.6kB/s)(5048KiB/110880msec) slat (usec): min=35, max=58188, avg=15731.10, stdev=8646.55 clat (msec): min=17, max=1071, avg=444.46, stdev=111.74 lat (msec): min=34, max=1077, avg=460.20, stdev=113.06 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 288], 10.00th=[ 326], 20.00th=[ 359], | 30.00th=[ 384], 40.00th=[ 414], 50.00th=[ 439], 60.00th=[ 464], | 70.00th=[ 489], 80.00th=[ 527], 90.00th=[ 584], 95.00th=[ 634], | 99.00th=[ 726], 99.50th=[ 793], 99.90th=[ 986], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 7, max= 104, per=25.21%, avg=45.12, stdev=20.67, samples=219 iops : min= 1, max= 26, avg=10.74, stdev= 5.18, samples=219 write: IOPS=11, BW=46.8KiB/s (47.9kB/s)(5192KiB/110880msec); 0 zone resets slat (usec): min=35, max=25327, avg=405.00, stdev=1316.59 clat (msec): min=172, max=1872, avg=917.90, stdev=259.58 lat (msec): min=172, max=1872, avg=918.31, stdev=259.66 clat percentiles (msec): | 1.00th=[ 414], 5.00th=[ 542], 10.00th=[ 600], 20.00th=[ 693], | 30.00th=[ 768], 40.00th=[ 827], 50.00th=[ 894], 60.00th=[ 953], | 70.00th=[ 1045], 80.00th=[ 1133], 90.00th=[ 1284], 95.00th=[ 1368], | 99.00th=[ 1552], 99.50th=[ 1720], 99.90th=[ 1871], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 7, max= 103, per=24.79%, avg=46.11, stdev=20.22, samples=220 iops : min= 1, max= 25, avg=10.99, stdev= 5.09, samples=220 lat (msec) : 20=0.08%, 50=0.12%, 100=0.27%, 250=1.09%, 500=36.05% lat (msec) : 750=25.51%, 1000=19.02%, 2000=17.85% cpu : usr=0.11%, sys=0.75%, ctx=4264, 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=145633: Sat Sep 5 20:46:46 2026 read: IOPS=11, BW=44.5KiB/s (45.6kB/s)(4976KiB/111788msec) slat (usec): min=3276, max=84009, avg=15707.27, stdev=8737.62 clat (msec): min=33, max=943, avg=440.88, stdev=101.93 lat (msec): min=53, max=966, avg=456.60, stdev=103.10 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 292], 10.00th=[ 317], 20.00th=[ 355], | 30.00th=[ 384], 40.00th=[ 414], 50.00th=[ 435], 60.00th=[ 464], | 70.00th=[ 489], 80.00th=[ 523], 90.00th=[ 575], 95.00th=[ 617], | 99.00th=[ 684], 99.50th=[ 718], 99.90th=[ 885], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 7, max= 119, per=24.45%, avg=43.76, stdev=22.55, samples=222 iops : min= 1, max= 29, avg=10.39, stdev= 5.66, samples=222 write: IOPS=11, BW=47.1KiB/s (48.2kB/s)(5264KiB/111788msec); 0 zone resets slat (usec): min=34, max=26115, avg=394.25, stdev=1275.74 clat (msec): min=201, max=1880, avg=924.50, stdev=255.45 lat (msec): min=203, max=1880, avg=924.90, stdev=255.47 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 542], 10.00th=[ 609], 20.00th=[ 701], | 30.00th=[ 785], 40.00th=[ 844], 50.00th=[ 902], 60.00th=[ 969], | 70.00th=[ 1045], 80.00th=[ 1150], 90.00th=[ 1267], 95.00th=[ 1368], | 99.00th=[ 1569], 99.50th=[ 1603], 99.90th=[ 1854], 99.95th=[ 1888], | 99.99th=[ 1888] bw ( KiB/s): min= 7, max= 95, per=25.09%, avg=46.67, stdev=19.79, samples=221 iops : min= 1, max= 23, avg=11.12, stdev= 4.95, samples=221 lat (msec) : 50=0.12%, 100=0.12%, 250=0.51%, 500=36.17%, 750=24.77% lat (msec) : 1000=19.69%, 2000=18.63% cpu : usr=0.12%, sys=0.72%, ctx=4187, majf=0, minf=16 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=145634: Sat Sep 5 20:46:46 2026 read: IOPS=11, BW=44.6KiB/s (45.7kB/s)(4984KiB/111788msec) slat (usec): min=3539, max=59981, avg=15693.79, stdev=8513.25 clat (msec): min=16, max=1108, avg=447.11, stdev=110.12 lat (msec): min=38, max=1121, avg=462.82, stdev=111.15 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 296], 10.00th=[ 321], 20.00th=[ 359], | 30.00th=[ 388], 40.00th=[ 414], 50.00th=[ 443], 60.00th=[ 472], | 70.00th=[ 498], 80.00th=[ 531], 90.00th=[ 592], 95.00th=[ 634], | 99.00th=[ 718], 99.50th=[ 743], 99.90th=[ 776], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7, max= 104, per=24.68%, avg=44.18, stdev=20.69, samples=221 iops : min= 1, max= 26, avg=10.49, stdev= 5.21, samples=221 write: IOPS=11, BW=47.0KiB/s (48.1kB/s)(5256KiB/111788msec); 0 zone resets slat (usec): min=32, max=13053, avg=378.76, stdev=1086.83 clat (msec): min=224, max=1902, avg=918.75, stdev=255.72 lat (msec): min=224, max=1902, avg=919.14, stdev=255.67 clat percentiles (msec): | 1.00th=[ 447], 5.00th=[ 558], 10.00th=[ 617], 20.00th=[ 693], | 30.00th=[ 768], 40.00th=[ 827], 50.00th=[ 894], 60.00th=[ 953], | 70.00th=[ 1036], 80.00th=[ 1133], 90.00th=[ 1284], 95.00th=[ 1385], | 99.00th=[ 1552], 99.50th=[ 1653], 99.90th=[ 1787], 99.95th=[ 1905], | 99.99th=[ 1905] bw ( KiB/s): min= 7, max= 103, per=24.96%, avg=46.43, stdev=19.23, samples=221 iops : min= 1, max= 25, avg=11.06, stdev= 4.78, samples=221 lat (msec) : 20=0.04%, 50=0.04%, 100=0.39%, 250=0.35%, 500=35.23% lat (msec) : 750=26.48%, 1000=19.61%, 2000=17.85% cpu : usr=0.12%, sys=0.70%, ctx=4306, 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=145635: Sat Sep 5 20:46:46 2026 read: IOPS=11, BW=45.4KiB/s (46.5kB/s)(5060KiB/111480msec) slat (usec): min=3140, max=75946, avg=15462.83, stdev=8182.78 clat (msec): min=14, max=849, avg=442.84, stdev=106.46 lat (msec): min=35, max=871, avg=458.31, stdev=107.65 clat percentiles (msec): | 1.00th=[ 232], 5.00th=[ 292], 10.00th=[ 313], 20.00th=[ 355], | 30.00th=[ 384], 40.00th=[ 414], 50.00th=[ 439], 60.00th=[ 464], | 70.00th=[ 489], 80.00th=[ 531], 90.00th=[ 584], 95.00th=[ 634], | 99.00th=[ 701], 99.50th=[ 709], 99.90th=[ 802], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 7, max= 111, per=25.28%, avg=45.25, stdev=19.78, samples=219 iops : min= 1, max= 27, avg=10.76, stdev= 5.00, samples=219 write: IOPS=11, BW=46.5KiB/s (47.6kB/s)(5180KiB/111480msec); 0 zone resets slat (usec): min=31, max=38915, avg=438.46, stdev=1631.48 clat (msec): min=288, max=1753, avg=925.92, stdev=252.98 lat (msec): min=289, max=1753, avg=926.36, stdev=253.02 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 558], 10.00th=[ 617], 20.00th=[ 701], | 30.00th=[ 768], 40.00th=[ 835], 50.00th=[ 894], 60.00th=[ 978], | 70.00th=[ 1045], 80.00th=[ 1133], 90.00th=[ 1284], 95.00th=[ 1368], | 99.00th=[ 1552], 99.50th=[ 1586], 99.90th=[ 1720], 99.95th=[ 1754], | 99.99th=[ 1754] bw ( KiB/s): min= 7, max= 96, per=24.60%, avg=45.75, stdev=19.23, samples=221 iops : min= 1, max= 24, avg=10.90, stdev= 4.81, samples=221 lat (msec) : 20=0.04%, 50=0.16%, 100=0.16%, 250=0.39%, 500=36.33% lat (msec) : 750=25.94%, 1000=18.36%, 2000=18.63% cpu : usr=0.12%, sys=0.78%, ctx=4379, majf=0, minf=16 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=180KiB/s (184kB/s), 44.5KiB/s-45.5KiB/s (45.6kB/s-46.6kB/s), io=19.6MiB (20.5MB), run=110880-111788msec WRITE: bw=187KiB/s (191kB/s), 46.5KiB/s-47.1KiB/s (47.6kB/s-48.2kB/s), io=20.4MiB (21.4MB), run=110880-111788msec 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=145656: Sat Sep 5 20:46:57 2026 read: IOPS=1, BW=78.9MiB/s (82.7MB/s)(40.0MiB/507msec) slat (nsec): min=48713k, max=48713k, avg=48713009.00, stdev= 0.00 clat (nsec): min=432567k, max=432567k, avg=432566692.00, stdev= 0.00 lat (nsec): min=481285k, max=481285k, avg=481284722.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 435], 10.00th=[ 435], 20.00th=[ 435], | 30.00th=[ 435], 40.00th=[ 435], 50.00th=[ 435], 60.00th=[ 435], | 70.00th=[ 435], 80.00th=[ 435], 90.00th=[ 435], 95.00th=[ 435], | 99.00th=[ 435], 99.50th=[ 435], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.17%, ctx=39, 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=78.9MiB/s (82.7MB/s), 78.9MiB/s-78.9MiB/s (82.7MB/s-82.7MB/s), io=40.0MiB (41.9MB), run=507-507msec 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