== sanity test 398c: run fio to test AIO ================= 10:53:31 (1788533611) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.839582 s, 50.0 MB/s osc.lustre-OST0000-osc-ffff8cbb08005800.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=145185: Fri Sep 4 10:56:30 2026 write: IOPS=15, BW=63.8KiB/s (65.3kB/s)(10.0MiB/160561msec); 0 zone resets slat (usec): min=22, max=27719, avg=263.59, stdev=1205.53 clat (msec): min=396, max=2219, avg=1002.10, stdev=261.41 lat (msec): min=396, max=2219, avg=1002.36, stdev=261.42 clat percentiles (msec): | 1.00th=[ 510], 5.00th=[ 684], 10.00th=[ 743], 20.00th=[ 802], | 30.00th=[ 852], 40.00th=[ 902], 50.00th=[ 944], 60.00th=[ 1011], | 70.00th=[ 1083], 80.00th=[ 1167], 90.00th=[ 1368], 95.00th=[ 1536], | 99.00th=[ 1821], 99.50th=[ 1989], 99.90th=[ 2072], 99.95th=[ 2089], | 99.99th=[ 2232] bw ( KiB/s): min= 7, max= 256, per=25.71%, avg=65.57, stdev=29.53, samples=307 iops : min= 1, max= 64, avg=15.88, stdev= 7.43, samples=307 lat (msec) : 500=0.78%, 750=10.86%, 1000=46.76%, 2000=41.29%, >=2000=0.31% cpu : usr=0.05%, sys=0.24%, ctx=1577, 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=145186: Fri Sep 4 10:56:30 2026 write: IOPS=15, BW=63.8KiB/s (65.4kB/s)(10.0MiB/160424msec); 0 zone resets slat (usec): min=23, max=22909, avg=236.77, stdev=908.49 clat (msec): min=220, max=2132, avg=1001.32, stdev=263.57 lat (msec): min=220, max=2133, avg=1001.56, stdev=263.57 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 693], 10.00th=[ 743], 20.00th=[ 802], | 30.00th=[ 852], 40.00th=[ 894], 50.00th=[ 953], 60.00th=[ 1011], | 70.00th=[ 1083], 80.00th=[ 1183], 90.00th=[ 1351], 95.00th=[ 1502], | 99.00th=[ 1888], 99.50th=[ 2005], 99.90th=[ 2123], 99.95th=[ 2140], | 99.99th=[ 2140] bw ( KiB/s): min= 7, max= 192, per=25.12%, avg=64.05, stdev=30.23, samples=314 iops : min= 1, max= 48, avg=15.49, stdev= 7.56, samples=314 lat (msec) : 250=0.04%, 500=1.17%, 750=10.23%, 1000=46.99%, 2000=41.09% lat (msec) : >=2000=0.47% cpu : usr=0.06%, sys=0.27%, ctx=1853, 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=145187: Fri Sep 4 10:56:30 2026 write: IOPS=16, BW=64.0KiB/s (65.6kB/s)(10.0MiB/159918msec); 0 zone resets slat (usec): min=22, max=27778, avg=288.78, stdev=1164.66 clat (msec): min=265, max=2212, avg=998.84, stdev=270.22 lat (msec): min=266, max=2212, avg=999.13, stdev=270.22 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 667], 10.00th=[ 743], 20.00th=[ 802], | 30.00th=[ 852], 40.00th=[ 902], 50.00th=[ 953], 60.00th=[ 1011], | 70.00th=[ 1083], 80.00th=[ 1167], 90.00th=[ 1368], 95.00th=[ 1552], | 99.00th=[ 1804], 99.50th=[ 1955], 99.90th=[ 2072], 99.95th=[ 2089], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 256, per=25.61%, avg=65.31, stdev=28.17, samples=308 iops : min= 1, max= 64, avg=15.81, stdev= 7.09, samples=308 lat (msec) : 500=2.54%, 750=8.52%, 1000=47.50%, 2000=41.17%, >=2000=0.27% cpu : usr=0.06%, sys=0.26%, ctx=1637, 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=145188: Fri Sep 4 10:56:30 2026 write: IOPS=15, BW=63.8KiB/s (65.4kB/s)(10.0MiB/160422msec); 0 zone resets slat (usec): min=23, max=26254, avg=323.07, stdev=1404.60 clat (msec): min=319, max=2120, avg=1001.17, stdev=258.04 lat (msec): min=319, max=2120, avg=1001.49, stdev=258.08 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 676], 10.00th=[ 743], 20.00th=[ 793], | 30.00th=[ 852], 40.00th=[ 911], 50.00th=[ 961], 60.00th=[ 1011], | 70.00th=[ 1083], 80.00th=[ 1200], 90.00th=[ 1351], 95.00th=[ 1502], | 99.00th=[ 1854], 99.50th=[ 1905], 99.90th=[ 2005], 99.95th=[ 2123], | 99.99th=[ 2123] bw ( KiB/s): min= 7, max= 256, per=25.88%, avg=66.00, stdev=29.65, samples=305 iops : min= 1, max= 64, avg=15.99, stdev= 7.45, samples=305 lat (msec) : 500=1.25%, 750=9.96%, 1000=46.76%, 2000=41.91%, >=2000=0.12% cpu : usr=0.06%, sys=0.28%, ctx=1846, 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=255KiB/s (261kB/s), 63.8KiB/s-64.0KiB/s (65.3kB/s-65.6kB/s), io=40.0MiB (41.9MB), run=159918-160561msec 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=145224: Fri Sep 4 10:58:36 2026 read: IOPS=11, BW=44.5KiB/s (45.5kB/s)(5048KiB/113530msec) slat (usec): min=3106, max=74145, avg=16947.90, stdev=9387.94 clat (msec): min=24, max=1527, avg=440.74, stdev=131.60 lat (msec): min=31, max=1534, avg=457.69, stdev=133.44 clat percentiles (msec): | 1.00th=[ 224], 5.00th=[ 296], 10.00th=[ 317], 20.00th=[ 351], | 30.00th=[ 376], 40.00th=[ 397], 50.00th=[ 418], 60.00th=[ 443], | 70.00th=[ 472], 80.00th=[ 506], 90.00th=[ 600], 95.00th=[ 667], | 99.00th=[ 877], 99.50th=[ 953], 99.90th=[ 1435], 99.95th=[ 1536], | 99.99th=[ 1536] bw ( KiB/s): min= 7, max= 143, per=25.35%, avg=44.62, stdev=20.33, samples=221 iops : min= 1, max= 35, avg=10.60, stdev= 5.13, samples=221 write: IOPS=11, BW=45.7KiB/s (46.8kB/s)(5192KiB/113530msec); 0 zone resets slat (usec): min=33, max=26228, avg=368.91, stdev=1291.37 clat (msec): min=351, max=2404, avg=950.12, stdev=269.29 lat (msec): min=352, max=2405, avg=950.50, stdev=269.29 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 575], 10.00th=[ 642], 20.00th=[ 735], | 30.00th=[ 810], 40.00th=[ 860], 50.00th=[ 911], 60.00th=[ 969], | 70.00th=[ 1053], 80.00th=[ 1150], 90.00th=[ 1301], 95.00th=[ 1418], | 99.00th=[ 1720], 99.50th=[ 1972], 99.90th=[ 2400], 99.95th=[ 2400], | 99.99th=[ 2400] bw ( KiB/s): min= 7, max= 96, per=24.70%, avg=45.19, stdev=18.78, samples=224 iops : min= 1, max= 24, avg=10.75, stdev= 4.75, samples=224 lat (msec) : 50=0.04%, 100=0.16%, 250=0.62%, 500=39.06%, 750=19.41% lat (msec) : 1000=22.34%, 2000=18.12%, >=2000=0.23% cpu : usr=0.10%, sys=0.73%, ctx=4397, 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=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=145225: Fri Sep 4 10:58:36 2026 read: IOPS=10, BW=43.7KiB/s (44.7kB/s)(4976KiB/113865msec) slat (msec): min=3, max=386, avg=17.06, stdev=16.33 clat (msec): min=18, max=1057, avg=437.79, stdev=124.61 lat (msec): min=26, max=1074, avg=454.86, stdev=125.67 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 288], 10.00th=[ 313], 20.00th=[ 347], | 30.00th=[ 372], 40.00th=[ 393], 50.00th=[ 422], 60.00th=[ 443], | 70.00th=[ 477], 80.00th=[ 518], 90.00th=[ 600], 95.00th=[ 676], | 99.00th=[ 818], 99.50th=[ 885], 99.90th=[ 986], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 7, max= 118, per=24.71%, avg=43.50, stdev=21.31, samples=223 iops : min= 1, max= 29, avg=10.33, stdev= 5.37, samples=223 write: IOPS=11, BW=46.2KiB/s (47.3kB/s)(5264KiB/113865msec); 0 zone resets slat (usec): min=31, max=16817, avg=320.51, stdev=1089.22 clat (msec): min=146, max=2090, avg=951.66, stdev=272.10 lat (msec): min=148, max=2090, avg=951.98, stdev=272.08 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 550], 10.00th=[ 634], 20.00th=[ 735], | 30.00th=[ 802], 40.00th=[ 860], 50.00th=[ 927], 60.00th=[ 986], | 70.00th=[ 1070], 80.00th=[ 1167], 90.00th=[ 1318], 95.00th=[ 1435], | 99.00th=[ 1703], 99.50th=[ 1804], 99.90th=[ 1972], 99.95th=[ 2089], | 99.99th=[ 2089] bw ( KiB/s): min= 7, max= 103, per=25.06%, avg=45.86, stdev=20.38, samples=224 iops : min= 1, max= 25, avg=10.91, stdev= 5.17, samples=224 lat (msec) : 20=0.04%, 50=0.04%, 100=0.27%, 250=1.05%, 500=37.46% lat (msec) : 750=20.00%, 1000=21.41%, 2000=19.69%, >=2000=0.04% cpu : usr=0.11%, sys=0.69%, ctx=4243, 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=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=145226: Fri Sep 4 10:58:36 2026 read: IOPS=10, BW=43.0KiB/s (45.0kB/s)(4984KiB/113380msec) slat (usec): min=50, max=73313, avg=17041.20, stdev=9817.87 clat (msec): min=19, max=1913, avg=436.75, stdev=125.21 lat (msec): min=19, max=1946, avg=453.80, stdev=127.13 clat percentiles (msec): | 1.00th=[ 230], 5.00th=[ 288], 10.00th=[ 317], 20.00th=[ 347], | 30.00th=[ 376], 40.00th=[ 393], 50.00th=[ 414], 60.00th=[ 443], | 70.00th=[ 472], 80.00th=[ 510], 90.00th=[ 592], 95.00th=[ 676], | 99.00th=[ 785], 99.50th=[ 869], 99.90th=[ 944], 99.95th=[ 1921], | 99.99th=[ 1921] bw ( KiB/s): min= 7, max= 111, per=25.20%, avg=44.35, stdev=22.34, samples=220 iops : min= 1, max= 27, avg=10.54, stdev= 5.58, samples=220 write: IOPS=11, BW=46.4KiB/s (47.5kB/s)(5256KiB/113380msec); 0 zone resets slat (usec): min=34, max=15275, avg=328.45, stdev=1022.78 clat (msec): min=172, max=3169, avg=948.16, stdev=307.40 lat (msec): min=173, max=3169, avg=948.49, stdev=307.41 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 558], 10.00th=[ 634], 20.00th=[ 718], | 30.00th=[ 793], 40.00th=[ 852], 50.00th=[ 911], 60.00th=[ 969], | 70.00th=[ 1045], 80.00th=[ 1150], 90.00th=[ 1301], 95.00th=[ 1435], | 99.00th=[ 2022], 99.50th=[ 2467], 99.90th=[ 2869], 99.95th=[ 3171], | 99.99th=[ 3171] bw ( KiB/s): min= 7, max= 103, per=25.11%, avg=45.96, stdev=18.65, samples=222 iops : min= 1, max= 25, avg=10.93, stdev= 4.71, samples=222 lat (msec) : 20=0.04%, 50=0.12%, 100=0.20%, 250=0.55%, 500=38.63% lat (msec) : 750=20.74%, 1000=21.25%, 2000=17.89%, >=2000=0.59% cpu : usr=0.12%, sys=0.72%, ctx=4591, 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=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=145227: Fri Sep 4 10:58:36 2026 read: IOPS=11, BW=44.6KiB/s (45.6kB/s)(5060KiB/113529msec) slat (usec): min=3270, max=73669, avg=16673.14, stdev=9050.36 clat (msec): min=20, max=1064, avg=440.05, stdev=124.72 lat (msec): min=29, max=1092, avg=456.73, stdev=126.49 clat percentiles (msec): | 1.00th=[ 241], 5.00th=[ 288], 10.00th=[ 309], 20.00th=[ 342], | 30.00th=[ 372], 40.00th=[ 397], 50.00th=[ 418], 60.00th=[ 447], | 70.00th=[ 481], 80.00th=[ 514], 90.00th=[ 609], 95.00th=[ 676], | 99.00th=[ 852], 99.50th=[ 919], 99.90th=[ 1045], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 7, max= 111, per=25.22%, avg=44.39, stdev=21.67, samples=223 iops : min= 1, max= 27, avg=10.55, stdev= 5.43, samples=223 write: IOPS=11, BW=45.6KiB/s (46.7kB/s)(5180KiB/113529msec); 0 zone resets slat (usec): min=33, max=25972, avg=326.93, stdev=1267.05 clat (msec): min=320, max=2299, avg=952.79, stdev=272.65 lat (msec): min=320, max=2299, avg=953.12, stdev=272.69 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 575], 10.00th=[ 659], 20.00th=[ 743], | 30.00th=[ 802], 40.00th=[ 860], 50.00th=[ 919], 60.00th=[ 969], | 70.00th=[ 1053], 80.00th=[ 1150], 90.00th=[ 1301], 95.00th=[ 1435], | 99.00th=[ 1905], 99.50th=[ 2123], 99.90th=[ 2299], 99.95th=[ 2299], | 99.99th=[ 2299] bw ( KiB/s): min= 7, max= 111, per=24.67%, avg=45.15, stdev=19.80, samples=223 iops : min= 1, max= 27, avg=10.74, stdev= 4.99, samples=223 lat (msec) : 50=0.04%, 100=0.12%, 250=0.55%, 500=38.01%, 750=19.53% lat (msec) : 1000=23.20%, 2000=18.09%, >=2000=0.47% cpu : usr=0.10%, sys=0.70%, ctx=4298, 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=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=176KiB/s (180kB/s), 43.7KiB/s-44.6KiB/s (44.7kB/s-45.6kB/s), io=19.6MiB (20.5MB), run=113380-113865msec WRITE: bw=183KiB/s (188kB/s), 45.6KiB/s-46.4KiB/s (46.7kB/s-47.5kB/s), io=20.4MiB (21.4MB), run=113380-113865msec 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=145248: Fri Sep 4 10:58:52 2026 read: IOPS=1, BW=51.7MiB/s (54.3MB/s)(40.0MiB/773msec) slat (nsec): min=33318k, max=33318k, avg=33318036.00, stdev= 0.00 clat (nsec): min=698628k, max=698628k, avg=698627768.00, stdev= 0.00 lat (nsec): min=731951k, max=731951k, avg=731950770.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 701], 5.00th=[ 701], 10.00th=[ 701], 20.00th=[ 701], | 30.00th=[ 701], 40.00th=[ 701], 50.00th=[ 701], 60.00th=[ 701], | 70.00th=[ 701], 80.00th=[ 701], 90.00th=[ 701], 95.00th=[ 701], | 99.00th=[ 701], 99.50th=[ 701], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.55%, 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=51.7MiB/s (54.3MB/s), 51.7MiB/s-51.7MiB/s (54.3MB/s-54.3MB/s), io=40.0MiB (41.9MB), run=773-773msec 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