== sanity test 398c: run fio to test AIO ================= 23:34:12 (1786764852) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.479319 s, 87.5 MB/s osc.lustre-OST0000-osc-ffff8b6388bc9000.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=144889: Fri Aug 14 23:37:09 2026 write: IOPS=15, BW=61.5KiB/s (63.0kB/s)(10.0MiB/166394msec); 0 zone resets slat (usec): min=48, max=23720, avg=381.84, stdev=1224.29 clat (msec): min=282, max=2283, avg=1038.42, stdev=268.56 lat (msec): min=282, max=2283, avg=1038.80, stdev=268.58 clat percentiles (msec): | 1.00th=[ 535], 5.00th=[ 659], 10.00th=[ 743], 20.00th=[ 818], | 30.00th=[ 894], 40.00th=[ 961], 50.00th=[ 1020], 60.00th=[ 1070], | 70.00th=[ 1150], 80.00th=[ 1234], 90.00th=[ 1351], 95.00th=[ 1519], | 99.00th=[ 1888], 99.50th=[ 2089], 99.90th=[ 2265], 99.95th=[ 2299], | 99.99th=[ 2299] bw ( KiB/s): min= 7, max= 127, per=25.09%, avg=61.71, stdev=27.21, samples=326 iops : min= 1, max= 31, avg=14.93, stdev= 6.83, samples=326 lat (msec) : 500=0.78%, 750=10.35%, 1000=35.66%, 2000=52.66%, >=2000=0.55% cpu : usr=0.05%, sys=0.33%, ctx=2364, 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=144890: Fri Aug 14 23:37:09 2026 write: IOPS=15, BW=61.6KiB/s (63.1kB/s)(10.0MiB/166181msec); 0 zone resets slat (usec): min=49, max=22958, avg=359.24, stdev=1052.89 clat (msec): min=57, max=2241, avg=1037.66, stdev=265.06 lat (msec): min=57, max=2241, avg=1038.02, stdev=265.05 clat percentiles (msec): | 1.00th=[ 498], 5.00th=[ 667], 10.00th=[ 735], 20.00th=[ 818], | 30.00th=[ 885], 40.00th=[ 961], 50.00th=[ 1020], 60.00th=[ 1083], | 70.00th=[ 1150], 80.00th=[ 1234], 90.00th=[ 1368], 95.00th=[ 1519], | 99.00th=[ 1871], 99.50th=[ 1955], 99.90th=[ 2140], 99.95th=[ 2165], | 99.99th=[ 2232] bw ( KiB/s): min= 7, max= 128, per=24.86%, avg=61.16, stdev=26.44, samples=329 iops : min= 1, max= 32, avg=14.79, stdev= 6.60, samples=329 lat (msec) : 100=0.04%, 250=0.20%, 500=0.78%, 750=10.00%, 1000=35.43% lat (msec) : 2000=53.28%, >=2000=0.27% cpu : usr=0.05%, sys=0.32%, ctx=2116, 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=144891: Fri Aug 14 23:37:09 2026 write: IOPS=15, BW=61.6KiB/s (63.0kB/s)(10.0MiB/166319msec); 0 zone resets slat (usec): min=47, max=17202, avg=335.26, stdev=922.99 clat (msec): min=295, max=2274, avg=1037.93, stdev=266.61 lat (msec): min=296, max=2274, avg=1038.27, stdev=266.61 clat percentiles (msec): | 1.00th=[ 550], 5.00th=[ 684], 10.00th=[ 743], 20.00th=[ 827], | 30.00th=[ 885], 40.00th=[ 953], 50.00th=[ 1011], 60.00th=[ 1070], | 70.00th=[ 1133], 80.00th=[ 1217], 90.00th=[ 1368], 95.00th=[ 1536], | 99.00th=[ 1821], 99.50th=[ 1972], 99.90th=[ 2265], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 7, max= 128, per=24.94%, avg=61.34, stdev=26.72, samples=328 iops : min= 1, max= 32, avg=14.84, stdev= 6.70, samples=328 lat (msec) : 500=0.78%, 750=10.27%, 1000=36.17%, 2000=52.46%, >=2000=0.31% cpu : usr=0.04%, sys=0.29%, ctx=1842, 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=144892: Fri Aug 14 23:37:09 2026 write: IOPS=15, BW=61.5KiB/s (63.0kB/s)(10.0MiB/166434msec); 0 zone resets slat (usec): min=51, max=24684, avg=339.58, stdev=1067.88 clat (msec): min=333, max=2270, avg=1038.45, stdev=265.69 lat (msec): min=337, max=2271, avg=1038.79, stdev=265.66 clat percentiles (msec): | 1.00th=[ 518], 5.00th=[ 667], 10.00th=[ 743], 20.00th=[ 818], | 30.00th=[ 894], 40.00th=[ 953], 50.00th=[ 1011], 60.00th=[ 1070], | 70.00th=[ 1133], 80.00th=[ 1234], 90.00th=[ 1368], 95.00th=[ 1552], | 99.00th=[ 1804], 99.50th=[ 1905], 99.90th=[ 2165], 99.95th=[ 2232], | 99.99th=[ 2265] bw ( KiB/s): min= 7, max= 128, per=25.41%, avg=62.52, stdev=27.67, samples=322 iops : min= 1, max= 32, avg=15.13, stdev= 6.93, samples=322 lat (msec) : 500=0.74%, 750=10.35%, 1000=37.11%, 2000=51.41%, >=2000=0.39% cpu : usr=0.05%, sys=0.29%, ctx=1876, 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=246KiB/s (252kB/s), 61.5KiB/s-61.6KiB/s (63.0kB/s-63.1kB/s), io=40.0MiB (41.9MB), run=166181-166434msec 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=144927: Fri Aug 14 23:39:01 2026 read: IOPS=12, BW=48.6KiB/s (49.7kB/s)(5048KiB/103943msec) slat (usec): min=3018, max=65125, avg=14310.19, stdev=7601.91 clat (msec): min=18, max=810, avg=400.55, stdev=101.02 lat (msec): min=26, max=823, avg=414.87, stdev=102.06 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 257], 10.00th=[ 292], 20.00th=[ 326], | 30.00th=[ 351], 40.00th=[ 372], 50.00th=[ 393], 60.00th=[ 418], | 70.00th=[ 439], 80.00th=[ 481], 90.00th=[ 535], 95.00th=[ 575], | 99.00th=[ 667], 99.50th=[ 684], 99.90th=[ 718], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 8, max= 109, per=25.01%, avg=48.26, stdev=21.04, samples=205 iops : min= 2, max= 27, avg=11.59, stdev= 5.29, samples=205 write: IOPS=12, BW=49.0KiB/s (51.1kB/s)(5192KiB/103943msec); 0 zone resets slat (usec): min=54, max=23989, avg=317.40, stdev=951.09 clat (msec): min=268, max=1653, avg=874.93, stdev=227.65 lat (msec): min=269, max=1654, avg=875.25, stdev=227.74 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 550], 10.00th=[ 609], 20.00th=[ 684], | 30.00th=[ 743], 40.00th=[ 802], 50.00th=[ 852], 60.00th=[ 911], | 70.00th=[ 969], 80.00th=[ 1045], 90.00th=[ 1200], 95.00th=[ 1284], | 99.00th=[ 1552], 99.50th=[ 1620], 99.90th=[ 1653], 99.95th=[ 1653], | 99.99th=[ 1653] bw ( KiB/s): min= 7, max= 119, per=24.93%, avg=49.87, stdev=20.10, samples=204 iops : min= 1, max= 29, avg=12.00, stdev= 5.04, samples=204 lat (msec) : 20=0.04%, 50=0.20%, 100=0.23%, 250=1.80%, 500=40.51% lat (msec) : 750=22.62%, 1000=21.72%, 2000=12.89% cpu : usr=0.10%, sys=0.68%, ctx=4594, 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=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=144928: Fri Aug 14 23:39:01 2026 read: IOPS=11, BW=47.9KiB/s (49.0kB/s)(4976KiB/103889msec) slat (usec): min=67, max=66385, avg=14091.38, stdev=7859.87 clat (msec): min=19, max=888, avg=402.66, stdev=105.32 lat (msec): min=19, max=901, avg=416.76, stdev=106.00 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 257], 10.00th=[ 292], 20.00th=[ 321], | 30.00th=[ 351], 40.00th=[ 372], 50.00th=[ 393], 60.00th=[ 414], | 70.00th=[ 443], 80.00th=[ 485], 90.00th=[ 542], 95.00th=[ 592], | 99.00th=[ 693], 99.50th=[ 735], 99.90th=[ 877], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 7, max= 111, per=24.63%, avg=47.54, stdev=22.87, samples=205 iops : min= 1, max= 27, avg=11.41, stdev= 5.75, samples=205 write: IOPS=12, BW=50.7KiB/s (51.9kB/s)(5264KiB/103889msec); 0 zone resets slat (usec): min=55, max=9665, avg=305.33, stdev=671.10 clat (msec): min=201, max=1642, avg=868.03, stdev=232.24 lat (msec): min=201, max=1642, avg=868.33, stdev=232.26 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 527], 10.00th=[ 592], 20.00th=[ 684], | 30.00th=[ 743], 40.00th=[ 802], 50.00th=[ 852], 60.00th=[ 902], | 70.00th=[ 961], 80.00th=[ 1045], 90.00th=[ 1183], 95.00th=[ 1301], | 99.00th=[ 1502], 99.50th=[ 1552], 99.90th=[ 1620], 99.95th=[ 1636], | 99.99th=[ 1636] bw ( KiB/s): min= 7, max= 105, per=25.07%, avg=50.14, stdev=19.36, samples=206 iops : min= 1, max= 26, avg=12.06, stdev= 4.91, samples=206 lat (msec) : 20=0.12%, 50=0.16%, 100=0.12%, 250=2.07%, 500=40.27% lat (msec) : 750=21.68%, 1000=22.58%, 2000=13.01% cpu : usr=0.10%, sys=0.72%, ctx=4385, majf=0, minf=17 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=144929: Fri Aug 14 23:39:01 2026 read: IOPS=11, BW=47.9KiB/s (49.1kB/s)(4984KiB/103943msec) slat (usec): min=2941, max=48046, avg=14270.68, stdev=7335.79 clat (msec): min=30, max=783, avg=402.16, stdev=101.83 lat (msec): min=38, max=794, avg=416.43, stdev=102.64 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 255], 10.00th=[ 288], 20.00th=[ 321], | 30.00th=[ 347], 40.00th=[ 368], 50.00th=[ 393], 60.00th=[ 418], | 70.00th=[ 447], 80.00th=[ 477], 90.00th=[ 542], 95.00th=[ 592], | 99.00th=[ 676], 99.50th=[ 726], 99.90th=[ 768], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 7, max= 111, per=24.77%, avg=47.81, stdev=22.50, samples=205 iops : min= 1, max= 27, avg=11.48, stdev= 5.67, samples=205 write: IOPS=12, BW=50.6KiB/s (51.8kB/s)(5256KiB/103943msec); 0 zone resets slat (usec): min=55, max=21438, avg=354.92, stdev=997.39 clat (msec): min=169, max=1632, avg=868.12, stdev=228.51 lat (msec): min=169, max=1633, avg=868.48, stdev=228.56 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 531], 10.00th=[ 600], 20.00th=[ 676], | 30.00th=[ 743], 40.00th=[ 793], 50.00th=[ 852], 60.00th=[ 902], | 70.00th=[ 969], 80.00th=[ 1045], 90.00th=[ 1183], 95.00th=[ 1284], | 99.00th=[ 1502], 99.50th=[ 1586], 99.90th=[ 1636], 99.95th=[ 1636], | 99.99th=[ 1636] bw ( KiB/s): min= 8, max= 111, per=24.94%, avg=49.87, stdev=20.10, samples=206 iops : min= 2, max= 27, avg=12.00, stdev= 5.03, samples=206 lat (msec) : 50=0.12%, 100=0.12%, 250=1.99%, 500=41.09%, 750=21.37% lat (msec) : 1000=21.80%, 2000=13.52% cpu : usr=0.10%, sys=0.73%, ctx=4603, 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=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=144930: Fri Aug 14 23:39:01 2026 read: IOPS=12, BW=48.8KiB/s (49.0kB/s)(5060KiB/103644msec) slat (usec): min=3113, max=58062, avg=14135.47, stdev=7250.34 clat (msec): min=27, max=1001, avg=400.48, stdev=105.17 lat (msec): min=43, max=1007, avg=414.62, stdev=105.84 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 259], 10.00th=[ 292], 20.00th=[ 321], | 30.00th=[ 342], 40.00th=[ 368], 50.00th=[ 388], 60.00th=[ 414], | 70.00th=[ 447], 80.00th=[ 481], 90.00th=[ 531], 95.00th=[ 575], | 99.00th=[ 684], 99.50th=[ 726], 99.90th=[ 936], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 7, max= 110, per=25.26%, avg=48.76, stdev=21.39, samples=204 iops : min= 1, max= 27, avg=11.72, stdev= 5.38, samples=204 write: IOPS=12, BW=49.0KiB/s (51.2kB/s)(5180KiB/103644msec); 0 zone resets slat (usec): min=52, max=17487, avg=319.52, stdev=859.65 clat (msec): min=301, max=1710, avg=872.13, stdev=230.32 lat (msec): min=301, max=1710, avg=872.46, stdev=230.35 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 527], 10.00th=[ 609], 20.00th=[ 684], | 30.00th=[ 743], 40.00th=[ 793], 50.00th=[ 844], 60.00th=[ 902], | 70.00th=[ 961], 80.00th=[ 1036], 90.00th=[ 1167], 95.00th=[ 1284], | 99.00th=[ 1569], 99.50th=[ 1620], 99.90th=[ 1703], 99.95th=[ 1703], | 99.99th=[ 1703] bw ( KiB/s): min= 7, max= 111, per=24.83%, avg=49.65, stdev=20.02, samples=204 iops : min= 1, max= 27, avg=11.94, stdev= 5.06, samples=204 lat (msec) : 50=0.16%, 100=0.27%, 250=1.52%, 500=41.09%, 750=21.95% lat (msec) : 1000=22.42%, 2000=12.58% cpu : usr=0.10%, sys=0.74%, ctx=4783, majf=0, minf=17 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=193KiB/s (198kB/s), 47.9KiB/s-48.8KiB/s (49.0kB/s-49.0kB/s), io=19.6MiB (20.5MB), run=103644-103943msec WRITE: bw=201KiB/s (206kB/s), 49.0KiB/s-50.7KiB/s (51.1kB/s-51.9kB/s), io=20.4MiB (21.4MB), run=103644-103943msec 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=144958: Fri Aug 14 23:39:14 2026 read: IOPS=1, BW=78.6MiB/s (82.4MB/s)(40.0MiB/509msec) slat (nsec): min=23975k, max=23975k, avg=23975080.00, stdev= 0.00 clat (nsec): min=471604k, max=471604k, avg=471604038.00, stdev= 0.00 lat (nsec): min=495585k, max=495585k, avg=495584535.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 472], 5.00th=[ 472], 10.00th=[ 472], 20.00th=[ 472], | 30.00th=[ 472], 40.00th=[ 472], 50.00th=[ 472], 60.00th=[ 472], | 70.00th=[ 472], 80.00th=[ 472], 90.00th=[ 472], 95.00th=[ 472], | 99.00th=[ 472], 99.50th=[ 472], 99.90th=[ 472], 99.95th=[ 472], | 99.99th=[ 472] lat (msec) : 500=100.00% cpu : usr=0.20%, sys=2.56%, ctx=4, 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=78.6MiB/s (82.4MB/s), 78.6MiB/s-78.6MiB/s (82.4MB/s-82.4MB/s), io=40.0MiB (41.9MB), run=509-509msec 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