== sanity test 398c: run fio to test AIO ================= 21:56:25 (1786672585) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.678665 s, 61.8 MB/s osc.lustre-OST0000-osc-ffff9dd8d0bb4000.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=145184: Thu Aug 13 21:59:13 2026 write: IOPS=16, BW=66.2KiB/s (67.8kB/s)(10.0MiB/154631msec); 0 zone resets slat (usec): min=36, max=17809, avg=284.57, stdev=834.81 clat (msec): min=189, max=2152, avg=964.54, stdev=280.27 lat (msec): min=190, max=2152, avg=964.83, stdev=280.32 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 609], 10.00th=[ 659], 20.00th=[ 735], | 30.00th=[ 793], 40.00th=[ 860], 50.00th=[ 919], 60.00th=[ 995], | 70.00th=[ 1099], 80.00th=[ 1200], 90.00th=[ 1334], 95.00th=[ 1435], | 99.00th=[ 1787], 99.50th=[ 1905], 99.90th=[ 2140], 99.95th=[ 2140], | 99.99th=[ 2165] bw ( KiB/s): min= 7, max= 255, per=25.11%, avg=66.29, stdev=30.86, samples=304 iops : min= 1, max= 63, avg=16.08, stdev= 7.74, samples=304 lat (msec) : 250=0.04%, 500=2.23%, 750=20.66%, 1000=37.19%, 2000=39.49% lat (msec) : >=2000=0.39% cpu : usr=0.06%, sys=0.33%, ctx=1868, 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=145185: Thu Aug 13 21:59:13 2026 write: IOPS=16, BW=66.2KiB/s (67.8kB/s)(10.0MiB/154628msec); 0 zone resets slat (usec): min=35, max=18512, avg=311.75, stdev=948.64 clat (msec): min=190, max=2155, avg=964.41, stdev=284.68 lat (msec): min=190, max=2155, avg=964.73, stdev=284.70 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 584], 10.00th=[ 667], 20.00th=[ 743], | 30.00th=[ 802], 40.00th=[ 860], 50.00th=[ 919], 60.00th=[ 978], | 70.00th=[ 1070], 80.00th=[ 1200], 90.00th=[ 1351], 95.00th=[ 1452], | 99.00th=[ 1888], 99.50th=[ 2022], 99.90th=[ 2140], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 7, max= 207, per=25.54%, avg=67.41, stdev=32.23, samples=299 iops : min= 1, max= 51, avg=16.36, stdev= 8.08, samples=299 lat (msec) : 250=0.04%, 500=2.46%, 750=18.95%, 1000=41.09%, 2000=36.95% lat (msec) : >=2000=0.51% cpu : usr=0.05%, sys=0.33%, ctx=2053, 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=145186: Thu Aug 13 21:59:13 2026 write: IOPS=16, BW=66.4KiB/s (67.0kB/s)(10.0MiB/154306msec); 0 zone resets slat (usec): min=37, max=16720, avg=323.68, stdev=982.75 clat (msec): min=248, max=2154, avg=963.69, stdev=283.22 lat (msec): min=249, max=2154, avg=964.02, stdev=283.22 clat percentiles (msec): | 1.00th=[ 347], 5.00th=[ 592], 10.00th=[ 659], 20.00th=[ 735], | 30.00th=[ 802], 40.00th=[ 852], 50.00th=[ 919], 60.00th=[ 1003], | 70.00th=[ 1083], 80.00th=[ 1183], 90.00th=[ 1334], 95.00th=[ 1435], | 99.00th=[ 1854], 99.50th=[ 1921], 99.90th=[ 2165], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 7, max= 183, per=24.86%, avg=65.62, stdev=29.08, samples=307 iops : min= 1, max= 45, avg=15.92, stdev= 7.32, samples=307 lat (msec) : 250=0.04%, 500=2.97%, 750=18.91%, 1000=38.16%, 2000=39.53% lat (msec) : >=2000=0.39% cpu : usr=0.05%, sys=0.33%, ctx=2366, 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=145187: Thu Aug 13 21:59:13 2026 write: IOPS=16, BW=66.2KiB/s (67.8kB/s)(10.0MiB/154690msec); 0 zone resets slat (usec): min=35, max=16020, avg=303.36, stdev=942.10 clat (msec): min=86, max=2154, avg=965.46, stdev=280.32 lat (msec): min=86, max=2154, avg=965.77, stdev=280.33 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 609], 10.00th=[ 667], 20.00th=[ 726], | 30.00th=[ 793], 40.00th=[ 852], 50.00th=[ 919], 60.00th=[ 1003], | 70.00th=[ 1083], 80.00th=[ 1200], 90.00th=[ 1351], 95.00th=[ 1452], | 99.00th=[ 1787], 99.50th=[ 1888], 99.90th=[ 2106], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 7, max= 167, per=25.11%, avg=66.29, stdev=33.59, samples=304 iops : min= 1, max= 41, avg=16.09, stdev= 8.44, samples=304 lat (msec) : 100=0.04%, 250=0.23%, 500=2.11%, 750=20.62%, 1000=36.95% lat (msec) : 2000=39.92%, >=2000=0.12% cpu : usr=0.05%, sys=0.33%, ctx=2122, 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 Run status group 0 (all jobs): WRITE: bw=265KiB/s (271kB/s), 66.2KiB/s-66.4KiB/s (67.8kB/s-67.0kB/s), io=40.0MiB (41.9MB), run=154306-154690msec 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=145219: Thu Aug 13 22:01:07 2026 read: IOPS=12, BW=48.1KiB/s (49.2kB/s)(5048KiB/105055msec) slat (usec): min=3143, max=68313, avg=15145.15, stdev=7865.74 clat (msec): min=17, max=1054, avg=405.56, stdev=112.39 lat (msec): min=40, max=1064, avg=420.72, stdev=113.13 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 271], 10.00th=[ 292], 20.00th=[ 321], | 30.00th=[ 342], 40.00th=[ 372], 50.00th=[ 393], 60.00th=[ 418], | 70.00th=[ 443], 80.00th=[ 477], 90.00th=[ 531], 95.00th=[ 584], | 99.00th=[ 818], 99.50th=[ 852], 99.90th=[ 1045], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 7, max= 111, per=24.98%, avg=47.47, stdev=20.55, samples=208 iops : min= 1, max= 27, avg=11.32, stdev= 5.16, samples=208 write: IOPS=12, BW=49.4KiB/s (50.6kB/s)(5192KiB/105055msec); 0 zone resets slat (usec): min=51, max=11753, avg=371.14, stdev=735.94 clat (msec): min=295, max=1885, avg=881.69, stdev=231.21 lat (msec): min=295, max=1885, avg=882.07, stdev=231.21 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 542], 10.00th=[ 617], 20.00th=[ 701], | 30.00th=[ 760], 40.00th=[ 810], 50.00th=[ 860], 60.00th=[ 919], | 70.00th=[ 969], 80.00th=[ 1053], 90.00th=[ 1150], 95.00th=[ 1284], | 99.00th=[ 1603], 99.50th=[ 1670], 99.90th=[ 1871], 99.95th=[ 1888], | 99.99th=[ 1888] bw ( KiB/s): min= 7, max= 144, per=24.89%, avg=49.28, stdev=20.90, samples=206 iops : min= 1, max= 36, avg=11.78, stdev= 5.26, samples=206 lat (msec) : 20=0.04%, 50=0.12%, 100=0.16%, 250=1.05%, 500=42.70% lat (msec) : 750=18.40%, 1000=23.87%, 2000=13.67% cpu : usr=0.11%, sys=0.85%, ctx=4896, 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=145220: Thu Aug 13 22:01:07 2026 read: IOPS=11, BW=47.3KiB/s (48.4kB/s)(4976KiB/105177msec) slat (usec): min=2725, max=66869, avg=15242.78, stdev=7974.68 clat (msec): min=11, max=983, avg=405.09, stdev=109.35 lat (msec): min=15, max=993, avg=420.35, stdev=110.24 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 271], 10.00th=[ 296], 20.00th=[ 326], | 30.00th=[ 347], 40.00th=[ 368], 50.00th=[ 388], 60.00th=[ 414], | 70.00th=[ 439], 80.00th=[ 472], 90.00th=[ 531], 95.00th=[ 592], | 99.00th=[ 844], 99.50th=[ 885], 99.90th=[ 944], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 7, max= 111, per=24.85%, avg=47.22, stdev=21.19, samples=206 iops : min= 1, max= 27, avg=11.25, stdev= 5.32, samples=206 write: IOPS=12, BW=50.0KiB/s (51.2kB/s)(5264KiB/105177msec); 0 zone resets slat (usec): min=46, max=18362, avg=424.61, stdev=1138.17 clat (msec): min=173, max=1837, avg=877.91, stdev=237.46 lat (msec): min=173, max=1837, avg=878.33, stdev=237.54 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 510], 10.00th=[ 600], 20.00th=[ 693], | 30.00th=[ 760], 40.00th=[ 810], 50.00th=[ 869], 60.00th=[ 919], | 70.00th=[ 978], 80.00th=[ 1045], 90.00th=[ 1150], 95.00th=[ 1284], | 99.00th=[ 1653], 99.50th=[ 1770], 99.90th=[ 1838], 99.95th=[ 1838], | 99.99th=[ 1838] bw ( KiB/s): min= 15, max= 144, per=25.24%, avg=49.98, stdev=19.72, samples=206 iops : min= 3, max= 36, avg=11.95, stdev= 4.97, samples=206 lat (msec) : 20=0.04%, 50=0.08%, 100=0.12%, 250=1.25%, 500=42.30% lat (msec) : 750=19.02%, 1000=23.79%, 2000=13.40% cpu : usr=0.13%, sys=0.83%, ctx=4965, 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=145221: Thu Aug 13 22:01:07 2026 read: IOPS=11, BW=47.4KiB/s (48.6kB/s)(4984KiB/105056msec) slat (usec): min=93, max=68468, avg=15215.39, stdev=7827.98 clat (msec): min=19, max=1066, avg=401.39, stdev=110.28 lat (msec): min=32, max=1101, avg=416.61, stdev=111.47 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 266], 10.00th=[ 292], 20.00th=[ 321], | 30.00th=[ 347], 40.00th=[ 368], 50.00th=[ 388], 60.00th=[ 414], | 70.00th=[ 439], 80.00th=[ 472], 90.00th=[ 523], 95.00th=[ 575], | 99.00th=[ 827], 99.50th=[ 852], 99.90th=[ 1053], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 7, max= 104, per=24.96%, avg=47.42, stdev=22.04, samples=206 iops : min= 1, max= 26, avg=11.31, stdev= 5.52, samples=206 write: IOPS=12, BW=50.0KiB/s (51.2kB/s)(5256KiB/105056msec); 0 zone resets slat (usec): min=54, max=11222, avg=389.14, stdev=875.09 clat (msec): min=117, max=1895, avg=882.48, stdev=241.25 lat (msec): min=117, max=1895, avg=882.88, stdev=241.20 clat percentiles (msec): | 1.00th=[ 321], 5.00th=[ 523], 10.00th=[ 609], 20.00th=[ 701], | 30.00th=[ 768], 40.00th=[ 810], 50.00th=[ 860], 60.00th=[ 927], | 70.00th=[ 986], 80.00th=[ 1053], 90.00th=[ 1167], 95.00th=[ 1267], | 99.00th=[ 1670], 99.50th=[ 1770], 99.90th=[ 1871], 99.95th=[ 1888], | 99.99th=[ 1888] bw ( KiB/s): min= 7, max= 128, per=24.87%, avg=49.24, stdev=20.50, samples=208 iops : min= 1, max= 32, avg=11.76, stdev= 5.16, samples=208 lat (msec) : 20=0.04%, 50=0.20%, 100=0.23%, 250=1.45%, 500=41.99% lat (msec) : 750=18.40%, 1000=23.55%, 2000=14.14% cpu : usr=0.14%, sys=0.89%, ctx=4857, 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=145222: Thu Aug 13 22:01:07 2026 read: IOPS=12, BW=48.1KiB/s (49.3kB/s)(5060KiB/105109msec) slat (usec): min=2754, max=62547, avg=15086.35, stdev=8161.66 clat (msec): min=26, max=976, avg=403.67, stdev=108.51 lat (msec): min=54, max=1003, avg=418.77, stdev=109.20 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 264], 10.00th=[ 288], 20.00th=[ 321], | 30.00th=[ 347], 40.00th=[ 368], 50.00th=[ 393], 60.00th=[ 418], | 70.00th=[ 439], 80.00th=[ 472], 90.00th=[ 535], 95.00th=[ 592], | 99.00th=[ 785], 99.50th=[ 852], 99.90th=[ 944], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 7, max= 95, per=25.42%, avg=48.31, stdev=19.65, samples=205 iops : min= 1, max= 23, avg=11.53, stdev= 4.93, samples=205 write: IOPS=12, BW=49.3KiB/s (50.5kB/s)(5180KiB/105109msec); 0 zone resets slat (usec): min=46, max=21448, avg=433.32, stdev=1181.60 clat (msec): min=270, max=1820, avg=885.75, stdev=234.88 lat (msec): min=270, max=1820, avg=886.19, stdev=234.95 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 558], 10.00th=[ 617], 20.00th=[ 701], | 30.00th=[ 768], 40.00th=[ 810], 50.00th=[ 869], 60.00th=[ 919], | 70.00th=[ 978], 80.00th=[ 1062], 90.00th=[ 1167], 95.00th=[ 1301], | 99.00th=[ 1636], 99.50th=[ 1703], 99.90th=[ 1770], 99.95th=[ 1821], | 99.99th=[ 1821] bw ( KiB/s): min= 7, max= 128, per=24.66%, avg=48.83, stdev=19.58, samples=207 iops : min= 1, max= 32, avg=11.66, stdev= 4.95, samples=207 lat (msec) : 50=0.16%, 100=0.08%, 250=1.25%, 500=42.42%, 750=19.22% lat (msec) : 1000=22.93%, 2000=13.95% cpu : usr=0.11%, sys=0.92%, ctx=5147, 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=191KiB/s (195kB/s), 47.3KiB/s-48.1KiB/s (48.4kB/s-49.3kB/s), io=19.6MiB (20.5MB), run=105055-105177msec WRITE: bw=199KiB/s (203kB/s), 49.3KiB/s-50.0KiB/s (50.5kB/s-51.2kB/s), io=20.4MiB (21.4MB), run=105055-105177msec 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=145253: Thu Aug 13 22:01:16 2026 read: IOPS=1, BW=59.6MiB/s (62.5MB/s)(40.0MiB/671msec) slat (nsec): min=70802k, max=70802k, avg=70802257.00, stdev= 0.00 clat (nsec): min=572602k, max=572602k, avg=572601975.00, stdev= 0.00 lat (nsec): min=643409k, max=643409k, avg=643408740.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 575], 5.00th=[ 575], 10.00th=[ 575], 20.00th=[ 575], | 30.00th=[ 575], 40.00th=[ 575], 50.00th=[ 575], 60.00th=[ 575], | 70.00th=[ 575], 80.00th=[ 575], 90.00th=[ 575], 95.00th=[ 575], | 99.00th=[ 575], 99.50th=[ 575], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] lat (msec) : 750=100.00% cpu : usr=0.75%, sys=2.54%, ctx=44, majf=0, minf=10 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=59.6MiB/s (62.5MB/s), 59.6MiB/s-59.6MiB/s (62.5MB/s-62.5MB/s), io=40.0MiB (41.9MB), run=671-671msec 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