== sanity test 398c: run fio to test AIO ================= 16:31:21 (1789677081) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.753792 s, 55.6 MB/s osc.lustre-OST0000-osc-ffffa0b8b2fc8000.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=145464: Thu Sep 17 16:34:02 2026 write: IOPS=17, BW=68.5KiB/s (70.2kB/s)(10.0MiB/149423msec); 0 zone resets slat (usec): min=22, max=37745, avg=230.95, stdev=1041.87 clat (msec): min=174, max=2590, avg=932.94, stdev=305.86 lat (msec): min=174, max=2590, avg=933.17, stdev=305.85 clat percentiles (msec): | 1.00th=[ 451], 5.00th=[ 550], 10.00th=[ 625], 20.00th=[ 693], | 30.00th=[ 768], 40.00th=[ 835], 50.00th=[ 894], 60.00th=[ 953], | 70.00th=[ 1011], 80.00th=[ 1099], 90.00th=[ 1318], 95.00th=[ 1552], | 99.00th=[ 1989], 99.50th=[ 2072], 99.90th=[ 2500], 99.95th=[ 2534], | 99.99th=[ 2601] bw ( KiB/s): min= 8, max= 152, per=25.54%, avg=69.72, stdev=31.09, samples=289 iops : min= 2, max= 38, avg=16.93, stdev= 7.79, samples=289 lat (msec) : 250=0.62%, 500=1.91%, 750=24.92%, 1000=40.74%, 2000=30.90% lat (msec) : >=2000=0.90% cpu : usr=0.05%, sys=0.25%, ctx=1937, 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 rand-write: (groupid=0, jobs=1): err= 0: pid=145465: Thu Sep 17 16:34:02 2026 write: IOPS=17, BW=68.4KiB/s (70.0kB/s)(10.0MiB/149754msec); 0 zone resets slat (usec): min=22, max=22252, avg=222.43, stdev=846.53 clat (msec): min=263, max=2503, avg=934.40, stdev=300.34 lat (msec): min=263, max=2503, avg=934.62, stdev=300.33 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 542], 10.00th=[ 642], 20.00th=[ 709], | 30.00th=[ 768], 40.00th=[ 835], 50.00th=[ 885], 60.00th=[ 944], | 70.00th=[ 1020], 80.00th=[ 1099], 90.00th=[ 1318], 95.00th=[ 1502], | 99.00th=[ 1972], 99.50th=[ 2072], 99.90th=[ 2366], 99.95th=[ 2500], | 99.99th=[ 2500] bw ( KiB/s): min= 7, max= 152, per=25.36%, avg=69.24, stdev=32.83, samples=291 iops : min= 1, max= 38, avg=16.81, stdev= 8.23, samples=291 lat (msec) : 500=3.16%, 750=23.75%, 1000=41.05%, 2000=31.29%, >=2000=0.74% cpu : usr=0.05%, sys=0.25%, ctx=1780, 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=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=145466: Thu Sep 17 16:34:02 2026 write: IOPS=17, BW=68.5KiB/s (70.1kB/s)(10.0MiB/149577msec); 0 zone resets slat (usec): min=22, max=27981, avg=245.22, stdev=1060.29 clat (msec): min=201, max=2590, avg=933.20, stdev=306.44 lat (msec): min=201, max=2591, avg=933.45, stdev=306.43 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 535], 10.00th=[ 625], 20.00th=[ 709], | 30.00th=[ 768], 40.00th=[ 835], 50.00th=[ 877], 60.00th=[ 936], | 70.00th=[ 1020], 80.00th=[ 1099], 90.00th=[ 1334], 95.00th=[ 1519], | 99.00th=[ 1938], 99.50th=[ 2299], 99.90th=[ 2500], 99.95th=[ 2534], | 99.99th=[ 2601] bw ( KiB/s): min= 7, max= 208, per=26.08%, avg=71.20, stdev=35.96, samples=283 iops : min= 1, max= 52, avg=17.31, stdev= 9.02, samples=283 lat (msec) : 250=0.62%, 500=2.07%, 750=24.96%, 1000=40.08%, 2000=31.48% lat (msec) : >=2000=0.78% cpu : usr=0.06%, sys=0.25%, ctx=2021, 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 rand-write: (groupid=0, jobs=1): err= 0: pid=145467: Thu Sep 17 16:34:02 2026 write: IOPS=17, BW=68.4KiB/s (70.0kB/s)(10.0MiB/149753msec); 0 zone resets slat (usec): min=23, max=20790, avg=250.80, stdev=975.69 clat (msec): min=56, max=2472, avg=934.19, stdev=297.29 lat (msec): min=57, max=2472, avg=934.45, stdev=297.27 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 550], 10.00th=[ 617], 20.00th=[ 701], | 30.00th=[ 768], 40.00th=[ 835], 50.00th=[ 885], 60.00th=[ 944], | 70.00th=[ 1020], 80.00th=[ 1116], 90.00th=[ 1301], 95.00th=[ 1519], | 99.00th=[ 1905], 99.50th=[ 2072], 99.90th=[ 2433], 99.95th=[ 2467], | 99.99th=[ 2467] bw ( KiB/s): min= 7, max= 152, per=25.27%, avg=68.99, stdev=30.71, samples=292 iops : min= 1, max= 38, avg=16.75, stdev= 7.72, samples=292 lat (msec) : 100=0.04%, 500=2.85%, 750=23.87%, 1000=40.00%, 2000=32.50% lat (msec) : >=2000=0.74% cpu : usr=0.07%, sys=0.27%, ctx=2152, 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=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=274KiB/s (280kB/s), 68.4KiB/s-68.5KiB/s (70.0kB/s-70.2kB/s), io=40.0MiB (41.9MB), run=149423-149754msec 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=145501: Thu Sep 17 16:36:09 2026 read: IOPS=10, BW=43.3KiB/s (44.3kB/s)(5048KiB/116655msec) slat (usec): min=3485, max=57898, avg=16083.26, stdev=8711.19 clat (msec): min=15, max=1247, avg=455.76, stdev=141.71 lat (msec): min=35, max=1282, avg=471.85, stdev=143.64 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 275], 10.00th=[ 309], 20.00th=[ 347], | 30.00th=[ 384], 40.00th=[ 409], 50.00th=[ 435], 60.00th=[ 468], | 70.00th=[ 493], 80.00th=[ 550], 90.00th=[ 642], 95.00th=[ 709], | 99.00th=[ 919], 99.50th=[ 978], 99.90th=[ 1234], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 7, max= 152, per=25.04%, avg=43.07, stdev=20.32, samples=229 iops : min= 1, max= 38, avg=10.26, stdev= 5.10, samples=229 write: IOPS=11, BW=44.5KiB/s (45.6kB/s)(5192KiB/116655msec); 0 zone resets slat (usec): min=27, max=17774, avg=368.15, stdev=1082.54 clat (msec): min=317, max=2438, avg=976.12, stdev=272.78 lat (msec): min=317, max=2438, avg=976.49, stdev=272.79 clat percentiles (msec): | 1.00th=[ 430], 5.00th=[ 592], 10.00th=[ 667], 20.00th=[ 743], | 30.00th=[ 818], 40.00th=[ 894], 50.00th=[ 953], 60.00th=[ 1011], | 70.00th=[ 1083], 80.00th=[ 1183], 90.00th=[ 1318], 95.00th=[ 1502], | 99.00th=[ 1770], 99.50th=[ 2005], 99.90th=[ 2140], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 7, max= 113, per=24.69%, avg=44.19, stdev=18.49, samples=229 iops : min= 1, max= 28, avg=10.53, stdev= 4.65, samples=229 lat (msec) : 20=0.04%, 50=0.08%, 100=0.20%, 250=1.05%, 500=34.73% lat (msec) : 750=21.95%, 1000=19.84%, 2000=21.88%, >=2000=0.23% cpu : usr=0.14%, sys=0.73%, ctx=4513, 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=145502: Thu Sep 17 16:36:09 2026 read: IOPS=10, BW=42.7KiB/s (43.7kB/s)(4976KiB/116657msec) slat (usec): min=3218, max=54758, avg=16177.95, stdev=8507.07 clat (msec): min=17, max=1140, avg=454.80, stdev=136.65 lat (msec): min=30, max=1163, avg=470.99, stdev=138.44 clat percentiles (msec): | 1.00th=[ 194], 5.00th=[ 275], 10.00th=[ 309], 20.00th=[ 347], | 30.00th=[ 380], 40.00th=[ 405], 50.00th=[ 430], 60.00th=[ 464], | 70.00th=[ 506], 80.00th=[ 558], 90.00th=[ 642], 95.00th=[ 701], | 99.00th=[ 860], 99.50th=[ 953], 99.90th=[ 1053], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 7, max= 128, per=24.60%, avg=42.32, stdev=21.17, samples=230 iops : min= 1, max= 32, avg=10.07, stdev= 5.32, samples=230 write: IOPS=11, BW=45.1KiB/s (46.2kB/s)(5264KiB/116657msec); 0 zone resets slat (usec): min=25, max=26599, avg=339.04, stdev=1161.05 clat (msec): min=323, max=2498, avg=970.16, stdev=281.62 lat (msec): min=323, max=2498, avg=970.50, stdev=281.63 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 558], 10.00th=[ 651], 20.00th=[ 751], | 30.00th=[ 810], 40.00th=[ 894], 50.00th=[ 953], 60.00th=[ 1003], | 70.00th=[ 1070], 80.00th=[ 1183], 90.00th=[ 1301], 95.00th=[ 1485], | 99.00th=[ 1838], 99.50th=[ 2106], 99.90th=[ 2467], 99.95th=[ 2500], | 99.99th=[ 2500] bw ( KiB/s): min= 7, max= 95, per=24.79%, avg=44.37, stdev=20.01, samples=231 iops : min= 1, max= 23, avg=10.58, stdev= 5.04, samples=231 lat (msec) : 20=0.04%, 50=0.08%, 100=0.20%, 250=0.86%, 500=34.18% lat (msec) : 750=22.27%, 1000=21.45%, 2000=20.62%, >=2000=0.31% cpu : usr=0.11%, sys=0.73%, ctx=4738, 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=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=145503: Thu Sep 17 16:36:09 2026 read: IOPS=10, BW=42.7KiB/s (43.7kB/s)(4984KiB/116657msec) slat (usec): min=2932, max=72102, avg=16469.91, stdev=9104.52 clat (msec): min=70, max=1257, avg=457.82, stdev=137.23 lat (msec): min=75, max=1265, avg=474.29, stdev=138.98 clat percentiles (msec): | 1.00th=[ 188], 5.00th=[ 275], 10.00th=[ 313], 20.00th=[ 355], | 30.00th=[ 380], 40.00th=[ 414], 50.00th=[ 439], 60.00th=[ 468], | 70.00th=[ 498], 80.00th=[ 550], 90.00th=[ 634], 95.00th=[ 718], | 99.00th=[ 885], 99.50th=[ 1003], 99.90th=[ 1250], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 7, max= 128, per=24.72%, avg=42.51, stdev=21.96, samples=230 iops : min= 1, max= 32, avg=10.11, stdev= 5.55, samples=230 write: IOPS=11, BW=45.1KiB/s (46.1kB/s)(5256KiB/116657msec); 0 zone resets slat (usec): min=29, max=15709, avg=315.48, stdev=890.99 clat (msec): min=125, max=2270, avg=967.87, stdev=270.30 lat (msec): min=126, max=2270, avg=968.19, stdev=270.33 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 600], 10.00th=[ 659], 20.00th=[ 743], | 30.00th=[ 810], 40.00th=[ 869], 50.00th=[ 936], 60.00th=[ 1011], | 70.00th=[ 1083], 80.00th=[ 1167], 90.00th=[ 1301], 95.00th=[ 1435], | 99.00th=[ 1754], 99.50th=[ 1905], 99.90th=[ 2165], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 7, max= 104, per=25.02%, avg=44.79, stdev=21.30, samples=228 iops : min= 1, max= 26, avg=10.69, stdev= 5.33, samples=228 lat (msec) : 100=0.16%, 250=1.09%, 500=34.30%, 750=22.50%, 1000=20.08% lat (msec) : 2000=21.68%, >=2000=0.20% cpu : usr=0.13%, sys=0.69%, ctx=4652, 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=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=145504: Thu Sep 17 16:36:09 2026 read: IOPS=10, BW=43.4KiB/s (44.5kB/s)(5060KiB/116475msec) slat (usec): min=34, max=57918, avg=16145.51, stdev=8775.59 clat (msec): min=24, max=1330, avg=456.55, stdev=138.78 lat (msec): min=51, max=1360, avg=472.71, stdev=140.74 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 268], 10.00th=[ 305], 20.00th=[ 347], | 30.00th=[ 380], 40.00th=[ 414], 50.00th=[ 443], 60.00th=[ 472], | 70.00th=[ 502], 80.00th=[ 550], 90.00th=[ 625], 95.00th=[ 701], | 99.00th=[ 902], 99.50th=[ 1036], 99.90th=[ 1318], 99.95th=[ 1334], | 99.99th=[ 1334] bw ( KiB/s): min= 7, max= 98, per=25.24%, avg=43.41, stdev=19.71, samples=228 iops : min= 1, max= 24, avg=10.34, stdev= 4.95, samples=228 write: IOPS=11, BW=44.5KiB/s (45.5kB/s)(5180KiB/116475msec); 0 zone resets slat (usec): min=33, max=16031, avg=347.42, stdev=986.39 clat (msec): min=144, max=2457, avg=975.67, stdev=291.58 lat (msec): min=144, max=2457, avg=976.02, stdev=291.58 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 567], 10.00th=[ 659], 20.00th=[ 751], | 30.00th=[ 818], 40.00th=[ 877], 50.00th=[ 944], 60.00th=[ 995], | 70.00th=[ 1083], 80.00th=[ 1167], 90.00th=[ 1351], 95.00th=[ 1485], | 99.00th=[ 2039], 99.50th=[ 2198], 99.90th=[ 2433], 99.95th=[ 2467], | 99.99th=[ 2467] bw ( KiB/s): min= 7, max= 120, per=24.68%, avg=44.17, stdev=20.21, samples=228 iops : min= 1, max= 30, avg=10.54, stdev= 5.09, samples=228 lat (msec) : 50=0.08%, 100=0.12%, 250=1.52%, 500=34.41%, 750=21.60% lat (msec) : 1000=21.72%, 2000=19.96%, >=2000=0.59% cpu : usr=0.12%, sys=0.75%, ctx=4571, 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=172KiB/s (176kB/s), 42.7KiB/s-43.4KiB/s (43.7kB/s-44.5kB/s), io=19.6MiB (20.5MB), run=116475-116657msec WRITE: bw=179KiB/s (183kB/s), 44.5KiB/s-45.1KiB/s (45.5kB/s-46.2kB/s), io=20.4MiB (21.4MB), run=116475-116657msec 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=145525: Thu Sep 17 16:36:23 2026 read: IOPS=1, BW=54.8MiB/s (57.5MB/s)(40.0MiB/730msec) slat (nsec): min=21665k, max=21665k, avg=21664594.00, stdev= 0.00 clat (nsec): min=681530k, max=681530k, avg=681529681.00, stdev= 0.00 lat (nsec): min=703199k, max=703199k, avg=703198511.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 684], 5.00th=[ 684], 10.00th=[ 684], 20.00th=[ 684], | 30.00th=[ 684], 40.00th=[ 684], 50.00th=[ 684], 60.00th=[ 684], | 70.00th=[ 684], 80.00th=[ 684], 90.00th=[ 684], 95.00th=[ 684], | 99.00th=[ 684], 99.50th=[ 684], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.65%, ctx=42, 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=54.8MiB/s (57.5MB/s), 54.8MiB/s-54.8MiB/s (57.5MB/s-57.5MB/s), io=40.0MiB (41.9MB), run=730-730msec 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