== sanity test 398c: run fio to test AIO ================= 01:57:16 (1788847036) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.463846 s, 90.4 MB/s osc.lustre-OST0000-osc-ffff8e0ed6a7d000.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=148145: Tue Sep 8 01:59:51 2026 write: IOPS=17, BW=70.4KiB/s (72.1kB/s)(10.0MiB/145394msec); 0 zone resets slat (usec): min=28, max=28123, avg=212.47, stdev=939.94 clat (msec): min=100, max=2078, avg=907.95, stdev=257.07 lat (msec): min=100, max=2079, avg=908.17, stdev=257.06 clat percentiles (msec): | 1.00th=[ 215], 5.00th=[ 542], 10.00th=[ 642], 20.00th=[ 726], | 30.00th=[ 785], 40.00th=[ 844], 50.00th=[ 885], 60.00th=[ 936], | 70.00th=[ 986], 80.00th=[ 1083], 90.00th=[ 1217], 95.00th=[ 1368], | 99.00th=[ 1703], 99.50th=[ 1821], 99.90th=[ 2072], 99.95th=[ 2072], | 99.99th=[ 2072] bw ( KiB/s): min= 15, max= 257, per=25.01%, avg=70.27, stdev=30.12, samples=287 iops : min= 3, max= 64, avg=17.13, stdev= 7.55, samples=287 lat (msec) : 250=1.13%, 500=2.93%, 750=19.88%, 1000=48.52%, 2000=27.34% lat (msec) : >=2000=0.20% cpu : usr=0.04%, sys=0.22%, ctx=1994, 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=148146: Tue Sep 8 01:59:51 2026 write: IOPS=17, BW=70.3KiB/s (72.0kB/s)(10.0MiB/145600msec); 0 zone resets slat (usec): min=22, max=28562, avg=197.48, stdev=856.66 clat (msec): min=198, max=2148, avg=908.89, stdev=244.44 lat (msec): min=198, max=2148, avg=909.09, stdev=244.44 clat percentiles (msec): | 1.00th=[ 230], 5.00th=[ 584], 10.00th=[ 676], 20.00th=[ 735], | 30.00th=[ 793], 40.00th=[ 835], 50.00th=[ 885], 60.00th=[ 927], | 70.00th=[ 986], 80.00th=[ 1062], 90.00th=[ 1217], 95.00th=[ 1351], | 99.00th=[ 1737], 99.50th=[ 1787], 99.90th=[ 1871], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 7, max= 212, per=25.27%, avg=71.02, stdev=31.17, samples=284 iops : min= 1, max= 53, avg=17.31, stdev= 7.84, samples=284 lat (msec) : 250=1.09%, 500=2.34%, 750=18.63%, 1000=51.09%, 2000=26.76% lat (msec) : >=2000=0.08% cpu : usr=0.06%, sys=0.22%, ctx=2017, 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=148147: Tue Sep 8 01:59:51 2026 write: IOPS=17, BW=70.3KiB/s (71.0kB/s)(10.0MiB/145642msec); 0 zone resets slat (usec): min=29, max=10920, avg=160.62, stdev=483.26 clat (msec): min=200, max=2186, avg=909.09, stdev=245.69 lat (msec): min=200, max=2186, avg=909.25, stdev=245.69 clat percentiles (msec): | 1.00th=[ 321], 5.00th=[ 575], 10.00th=[ 659], 20.00th=[ 743], | 30.00th=[ 793], 40.00th=[ 844], 50.00th=[ 885], 60.00th=[ 927], | 70.00th=[ 986], 80.00th=[ 1053], 90.00th=[ 1217], 95.00th=[ 1351], | 99.00th=[ 1670], 99.50th=[ 1838], 99.90th=[ 2165], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 253, per=25.01%, avg=70.29, stdev=30.40, samples=287 iops : min= 1, max= 63, avg=17.13, stdev= 7.62, samples=287 lat (msec) : 250=0.62%, 500=2.54%, 750=18.20%, 1000=51.68%, 2000=26.72% lat (msec) : >=2000=0.23% cpu : usr=0.04%, sys=0.19%, ctx=1539, 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=148148: Tue Sep 8 01:59:51 2026 write: IOPS=17, BW=70.3KiB/s (71.9kB/s)(10.0MiB/145739msec); 0 zone resets slat (usec): min=29, max=17267, avg=199.48, stdev=733.18 clat (msec): min=187, max=2270, avg=909.61, stdev=247.45 lat (msec): min=187, max=2270, avg=909.81, stdev=247.48 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 575], 10.00th=[ 651], 20.00th=[ 735], | 30.00th=[ 793], 40.00th=[ 844], 50.00th=[ 877], 60.00th=[ 927], | 70.00th=[ 995], 80.00th=[ 1070], 90.00th=[ 1217], 95.00th=[ 1351], | 99.00th=[ 1703], 99.50th=[ 1737], 99.90th=[ 2198], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 7, max= 253, per=24.92%, avg=70.04, stdev=31.50, samples=288 iops : min= 1, max= 63, avg=17.06, stdev= 7.94, samples=288 lat (msec) : 250=0.66%, 500=2.73%, 750=18.71%, 1000=48.36%, 2000=29.34% lat (msec) : >=2000=0.20% cpu : usr=0.05%, sys=0.22%, ctx=2047, 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=281KiB/s (288kB/s), 70.3KiB/s-70.4KiB/s (71.9kB/s-72.1kB/s), io=40.0MiB (41.9MB), run=145394-145739msec 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=148178: Tue Sep 8 02:01:39 2026 read: IOPS=12, BW=50.3KiB/s (51.5kB/s)(5048KiB/100283msec) slat (usec): min=2481, max=62404, avg=12954.19, stdev=7525.38 clat (msec): min=7, max=931, avg=394.27, stdev=110.60 lat (msec): min=19, max=943, avg=407.23, stdev=111.93 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 249], 10.00th=[ 275], 20.00th=[ 309], | 30.00th=[ 334], 40.00th=[ 359], 50.00th=[ 380], 60.00th=[ 405], | 70.00th=[ 430], 80.00th=[ 468], 90.00th=[ 531], 95.00th=[ 600], | 99.00th=[ 760], 99.50th=[ 793], 99.90th=[ 894], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 7, max= 112, per=25.01%, avg=49.77, stdev=23.60, samples=199 iops : min= 1, max= 28, avg=11.97, stdev= 5.96, samples=199 write: IOPS=12, BW=51.8KiB/s (53.0kB/s)(5192KiB/100283msec); 0 zone resets slat (usec): min=29, max=13480, avg=226.13, stdev=772.70 clat (msec): min=253, max=1888, avg=837.19, stdev=267.25 lat (msec): min=254, max=1888, avg=837.42, stdev=267.27 clat percentiles (msec): | 1.00th=[ 321], 5.00th=[ 414], 10.00th=[ 527], 20.00th=[ 609], | 30.00th=[ 684], 40.00th=[ 751], 50.00th=[ 810], 60.00th=[ 877], | 70.00th=[ 953], 80.00th=[ 1045], 90.00th=[ 1217], 95.00th=[ 1318], | 99.00th=[ 1536], 99.50th=[ 1636], 99.90th=[ 1804], 99.95th=[ 1888], | 99.99th=[ 1888] bw ( KiB/s): min= 7, max= 119, per=24.61%, avg=51.19, stdev=24.05, samples=199 iops : min= 1, max= 29, avg=12.33, stdev= 6.03, samples=199 lat (msec) : 10=0.04%, 50=0.04%, 100=0.23%, 250=2.23%, 500=44.06% lat (msec) : 750=22.70%, 1000=18.48%, 2000=12.23% cpu : usr=0.10%, sys=0.52%, ctx=4356, 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=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=148179: Tue Sep 8 02:01:39 2026 read: IOPS=12, BW=49.7KiB/s (50.9kB/s)(4976KiB/100050msec) slat (usec): min=50, max=62376, avg=12922.42, stdev=7455.32 clat (msec): min=18, max=991, avg=396.46, stdev=114.38 lat (msec): min=24, max=1011, avg=409.39, stdev=116.51 clat percentiles (msec): | 1.00th=[ 215], 5.00th=[ 249], 10.00th=[ 275], 20.00th=[ 309], | 30.00th=[ 334], 40.00th=[ 355], 50.00th=[ 376], 60.00th=[ 405], | 70.00th=[ 430], 80.00th=[ 472], 90.00th=[ 542], 95.00th=[ 617], | 99.00th=[ 776], 99.50th=[ 835], 99.90th=[ 978], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 7, max= 119, per=24.73%, avg=49.22, stdev=23.38, samples=198 iops : min= 1, max= 29, avg=11.83, stdev= 5.85, samples=198 write: IOPS=13, BW=52.6KiB/s (53.9kB/s)(5264KiB/100050msec); 0 zone resets slat (usec): min=33, max=19674, avg=229.92, stdev=1039.10 clat (msec): min=142, max=1892, avg=828.38, stdev=262.81 lat (msec): min=142, max=1892, avg=828.61, stdev=262.86 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 405], 10.00th=[ 527], 20.00th=[ 617], | 30.00th=[ 684], 40.00th=[ 743], 50.00th=[ 810], 60.00th=[ 877], | 70.00th=[ 944], 80.00th=[ 1053], 90.00th=[ 1167], 95.00th=[ 1284], | 99.00th=[ 1502], 99.50th=[ 1636], 99.90th=[ 1804], 99.95th=[ 1888], | 99.99th=[ 1888] bw ( KiB/s): min= 7, max= 143, per=24.97%, avg=51.94, stdev=22.33, samples=199 iops : min= 1, max= 35, avg=12.52, stdev= 5.64, samples=199 lat (msec) : 20=0.04%, 50=0.04%, 100=0.08%, 250=2.81%, 500=42.46% lat (msec) : 750=23.79%, 1000=18.75%, 2000=12.03% cpu : usr=0.09%, sys=0.56%, ctx=4057, 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=148180: Tue Sep 8 02:01:39 2026 read: IOPS=12, BW=49.7KiB/s (50.9kB/s)(4984KiB/100354msec) slat (msec): min=2, max=719, avg=13.34, stdev=21.29 clat (msec): min=24, max=1248, avg=392.94, stdev=119.12 lat (msec): min=32, max=1261, avg=406.29, stdev=120.57 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 245], 10.00th=[ 279], 20.00th=[ 309], | 30.00th=[ 330], 40.00th=[ 355], 50.00th=[ 376], 60.00th=[ 401], | 70.00th=[ 430], 80.00th=[ 468], 90.00th=[ 542], 95.00th=[ 600], | 99.00th=[ 776], 99.50th=[ 852], 99.90th=[ 1028], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 7, max= 128, per=24.89%, avg=49.53, stdev=24.93, samples=198 iops : min= 1, max= 32, avg=11.91, stdev= 6.24, samples=198 write: IOPS=13, BW=52.4KiB/s (53.6kB/s)(5256KiB/100354msec); 0 zone resets slat (usec): min=29, max=3132, avg=182.15, stdev=332.00 clat (msec): min=179, max=1937, avg=834.18, stdev=271.77 lat (msec): min=179, max=1937, avg=834.37, stdev=271.76 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 422], 10.00th=[ 514], 20.00th=[ 609], | 30.00th=[ 684], 40.00th=[ 743], 50.00th=[ 802], 60.00th=[ 869], | 70.00th=[ 936], 80.00th=[ 1062], 90.00th=[ 1200], 95.00th=[ 1301], | 99.00th=[ 1586], 99.50th=[ 1787], 99.90th=[ 1921], 99.95th=[ 1938], | 99.99th=[ 1938] bw ( KiB/s): min= 7, max= 111, per=24.82%, avg=51.63, stdev=21.55, samples=199 iops : min= 1, max= 27, avg=12.44, stdev= 5.43, samples=199 lat (msec) : 50=0.23%, 100=0.31%, 250=2.46%, 500=43.01%, 750=23.44% lat (msec) : 1000=17.77%, 2000=12.77% cpu : usr=0.08%, sys=0.49%, ctx=4038, 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=148181: Tue Sep 8 02:01:39 2026 read: IOPS=12, BW=50.4KiB/s (51.6kB/s)(5060KiB/100441msec) slat (msec): min=2, max=382, avg=13.29, stdev=17.92 clat (msec): min=14, max=1285, avg=399.41, stdev=127.42 lat (msec): min=20, max=1297, avg=412.71, stdev=130.19 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 253], 10.00th=[ 275], 20.00th=[ 309], | 30.00th=[ 334], 40.00th=[ 359], 50.00th=[ 380], 60.00th=[ 405], | 70.00th=[ 439], 80.00th=[ 468], 90.00th=[ 531], 95.00th=[ 625], | 99.00th=[ 835], 99.50th=[ 911], 99.90th=[ 1217], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 7, max= 135, per=25.45%, avg=50.64, stdev=23.36, samples=196 iops : min= 1, max= 33, avg=12.18, stdev= 5.87, samples=196 write: IOPS=12, BW=51.6KiB/s (52.8kB/s)(5180KiB/100441msec); 0 zone resets slat (usec): min=35, max=32343, avg=271.57, stdev=1397.62 clat (msec): min=209, max=1998, avg=835.82, stdev=273.79 lat (msec): min=209, max=2002, avg=836.09, stdev=273.85 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 414], 10.00th=[ 523], 20.00th=[ 617], | 30.00th=[ 676], 40.00th=[ 751], 50.00th=[ 810], 60.00th=[ 877], | 70.00th=[ 944], 80.00th=[ 1053], 90.00th=[ 1183], 95.00th=[ 1301], | 99.00th=[ 1586], 99.50th=[ 1787], 99.90th=[ 1989], 99.95th=[ 2005], | 99.99th=[ 2005] bw ( KiB/s): min= 7, max= 159, per=24.39%, avg=50.72, stdev=23.90, samples=199 iops : min= 1, max= 39, avg=12.21, stdev= 6.00, samples=199 lat (msec) : 20=0.04%, 50=0.12%, 100=0.27%, 250=2.03%, 500=44.38% lat (msec) : 750=21.95%, 1000=18.40%, 2000=12.81% cpu : usr=0.08%, sys=0.56%, ctx=4341, 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=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=200KiB/s (205kB/s), 49.7KiB/s-50.4KiB/s (50.9kB/s-51.6kB/s), io=19.6MiB (20.5MB), run=100050-100441msec WRITE: bw=208KiB/s (213kB/s), 51.6KiB/s-52.6KiB/s (52.8kB/s-53.9kB/s), io=20.4MiB (21.4MB), run=100050-100441msec 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=148210: Tue Sep 8 02:01:47 2026 read: IOPS=2, BW=107MiB/s (112MB/s)(40.0MiB/374msec) slat (nsec): min=26262k, max=26262k, avg=26262136.00, stdev= 0.00 clat (nsec): min=325688k, max=325688k, avg=325687507.00, stdev= 0.00 lat (nsec): min=351954k, max=351954k, avg=351954479.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 326], 10.00th=[ 326], 20.00th=[ 326], | 30.00th=[ 326], 40.00th=[ 326], 50.00th=[ 326], 60.00th=[ 326], | 70.00th=[ 326], 80.00th=[ 326], 90.00th=[ 326], 95.00th=[ 326], | 99.00th=[ 326], 99.50th=[ 326], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.22%, ctx=21, 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=107MiB/s (112MB/s), 107MiB/s-107MiB/s (112MB/s-112MB/s), io=40.0MiB (41.9MB), run=374-374msec 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