== sanity test 398c: run fio to test AIO ================= 08:48:39 (1790945319) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.676821 s, 62.0 MB/s osc.lustre-OST0000-osc-ffff917ed1b1e000.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=145547: Fri Oct 2 08:51:36 2026 write: IOPS=15, BW=61.0KiB/s (62.5kB/s)(10.0MiB/167781msec); 0 zone resets slat (usec): min=26, max=22810, avg=243.55, stdev=1004.30 clat (msec): min=371, max=2064, avg=1047.23, stdev=284.99 lat (msec): min=371, max=2064, avg=1047.48, stdev=285.01 clat percentiles (msec): | 1.00th=[ 430], 5.00th=[ 617], 10.00th=[ 709], 20.00th=[ 802], | 30.00th=[ 885], 40.00th=[ 961], 50.00th=[ 1036], 60.00th=[ 1099], | 70.00th=[ 1183], 80.00th=[ 1284], 90.00th=[ 1418], 95.00th=[ 1519], | 99.00th=[ 1838], 99.50th=[ 1921], 99.90th=[ 2056], 99.95th=[ 2056], | 99.99th=[ 2072] bw ( KiB/s): min= 7, max= 144, per=25.78%, avg=62.90, stdev=29.77, samples=320 iops : min= 1, max= 36, avg=15.24, stdev= 7.49, samples=320 lat (msec) : 500=1.80%, 750=12.27%, 1000=31.64%, 2000=54.14%, >=2000=0.16% cpu : usr=0.05%, sys=0.22%, ctx=2036, 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=145548: Fri Oct 2 08:51:36 2026 write: IOPS=15, BW=61.1KiB/s (62.5kB/s)(10.0MiB/167711msec); 0 zone resets slat (usec): min=28, max=20476, avg=243.06, stdev=891.33 clat (msec): min=183, max=2463, avg=1046.73, stdev=295.40 lat (msec): min=184, max=2463, avg=1046.98, stdev=295.40 clat percentiles (msec): | 1.00th=[ 430], 5.00th=[ 617], 10.00th=[ 684], 20.00th=[ 793], | 30.00th=[ 877], 40.00th=[ 961], 50.00th=[ 1028], 60.00th=[ 1116], | 70.00th=[ 1183], 80.00th=[ 1301], 90.00th=[ 1418], 95.00th=[ 1519], | 99.00th=[ 1821], 99.50th=[ 1989], 99.90th=[ 2400], 99.95th=[ 2467], | 99.99th=[ 2467] bw ( KiB/s): min= 7, max= 136, per=26.11%, avg=63.72, stdev=30.33, samples=316 iops : min= 1, max= 34, avg=15.44, stdev= 7.60, samples=316 lat (msec) : 250=0.12%, 500=1.91%, 750=13.01%, 1000=30.78%, 2000=53.71% lat (msec) : >=2000=0.47% cpu : usr=0.05%, sys=0.22%, ctx=1921, 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=145549: Fri Oct 2 08:51:36 2026 write: IOPS=15, BW=61.3KiB/s (62.7kB/s)(10.0MiB/167130msec); 0 zone resets slat (usec): min=27, max=12568, avg=208.01, stdev=666.89 clat (msec): min=158, max=2445, avg=1043.81, stdev=294.53 lat (msec): min=159, max=2445, avg=1044.02, stdev=294.53 clat percentiles (msec): | 1.00th=[ 464], 5.00th=[ 625], 10.00th=[ 684], 20.00th=[ 802], | 30.00th=[ 877], 40.00th=[ 953], 50.00th=[ 1020], 60.00th=[ 1099], | 70.00th=[ 1183], 80.00th=[ 1284], 90.00th=[ 1418], 95.00th=[ 1536], | 99.00th=[ 1871], 99.50th=[ 1938], 99.90th=[ 2433], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 7, max= 128, per=25.46%, avg=62.12, stdev=26.88, samples=324 iops : min= 1, max= 32, avg=15.04, stdev= 6.76, samples=324 lat (msec) : 250=0.62%, 500=1.21%, 750=13.20%, 1000=31.56%, 2000=53.12% lat (msec) : >=2000=0.27% cpu : usr=0.04%, sys=0.21%, ctx=1882, 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=145550: Fri Oct 2 08:51:36 2026 write: IOPS=15, BW=61.0KiB/s (62.5kB/s)(10.0MiB/167781msec); 0 zone resets slat (usec): min=28, max=23932, avg=244.97, stdev=1026.54 clat (msec): min=379, max=2087, avg=1047.13, stdev=285.88 lat (msec): min=380, max=2087, avg=1047.38, stdev=285.84 clat percentiles (msec): | 1.00th=[ 468], 5.00th=[ 617], 10.00th=[ 693], 20.00th=[ 793], | 30.00th=[ 885], 40.00th=[ 953], 50.00th=[ 1036], 60.00th=[ 1099], | 70.00th=[ 1183], 80.00th=[ 1267], 90.00th=[ 1418], 95.00th=[ 1519], | 99.00th=[ 1804], 99.50th=[ 1972], 99.90th=[ 2056], 99.95th=[ 2089], | 99.99th=[ 2089] bw ( KiB/s): min= 7, max= 152, per=26.46%, avg=64.55, stdev=30.64, samples=312 iops : min= 1, max= 38, avg=15.65, stdev= 7.69, samples=312 lat (msec) : 500=1.72%, 750=12.50%, 1000=31.13%, 2000=54.18%, >=2000=0.47% cpu : usr=0.05%, sys=0.22%, ctx=1847, 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=244KiB/s (250kB/s), 61.0KiB/s-61.3KiB/s (62.5kB/s-62.7kB/s), io=40.0MiB (41.9MB), run=167130-167781msec 2% of I/O are 1-page (PAGE_SIZE=4096), max 50% 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=145586: Fri Oct 2 08:53:49 2026 read: IOPS=10, BW=40.0KiB/s (41.9kB/s)(5048KiB/123253msec) slat (usec): min=2942, max=74108, avg=16281.36, stdev=9794.43 clat (msec): min=24, max=1194, avg=475.81, stdev=149.60 lat (msec): min=34, max=1217, avg=492.10, stdev=152.15 clat percentiles (msec): | 1.00th=[ 224], 5.00th=[ 271], 10.00th=[ 305], 20.00th=[ 351], | 30.00th=[ 388], 40.00th=[ 418], 50.00th=[ 456], 60.00th=[ 493], | 70.00th=[ 542], 80.00th=[ 592], 90.00th=[ 676], 95.00th=[ 760], | 99.00th=[ 894], 99.50th=[ 936], 99.90th=[ 1062], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 7, max= 104, per=25.25%, avg=40.91, stdev=20.34, samples=241 iops : min= 1, max= 26, avg= 9.71, stdev= 5.10, samples=241 write: IOPS=10, BW=42.1KiB/s (43.1kB/s)(5192KiB/123253msec); 0 zone resets slat (usec): min=33, max=14883, avg=311.36, stdev=967.23 clat (msec): min=323, max=2352, avg=1037.89, stdev=305.55 lat (msec): min=324, max=2352, avg=1038.20, stdev=305.51 clat percentiles (msec): | 1.00th=[ 456], 5.00th=[ 584], 10.00th=[ 667], 20.00th=[ 793], | 30.00th=[ 869], 40.00th=[ 927], 50.00th=[ 1003], 60.00th=[ 1070], | 70.00th=[ 1167], 80.00th=[ 1284], 90.00th=[ 1469], 95.00th=[ 1569], | 99.00th=[ 1854], 99.50th=[ 2106], 99.90th=[ 2299], 99.95th=[ 2366], | 99.99th=[ 2366] bw ( KiB/s): min= 7, max= 95, per=24.70%, avg=41.74, stdev=18.47, samples=243 iops : min= 1, max= 23, avg= 9.92, stdev= 4.66, samples=243 lat (msec) : 50=0.08%, 100=0.04%, 250=1.29%, 500=29.92%, 750=23.20% lat (msec) : 1000=19.65%, 2000=25.51%, >=2000=0.31% cpu : usr=0.08%, sys=0.59%, ctx=4355, 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=145587: Fri Oct 2 08:53:49 2026 read: IOPS=10, BW=40.4KiB/s (41.3kB/s)(4976KiB/123273msec) slat (usec): min=3141, max=66363, avg=16442.58, stdev=9341.29 clat (msec): min=8, max=1066, avg=476.12, stdev=147.33 lat (msec): min=18, max=1098, avg=492.57, stdev=149.33 clat percentiles (msec): | 1.00th=[ 133], 5.00th=[ 279], 10.00th=[ 313], 20.00th=[ 359], | 30.00th=[ 393], 40.00th=[ 426], 50.00th=[ 456], 60.00th=[ 489], | 70.00th=[ 535], 80.00th=[ 592], 90.00th=[ 684], 95.00th=[ 760], | 99.00th=[ 860], 99.50th=[ 911], 99.90th=[ 961], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 7, max= 103, per=24.98%, avg=40.47, stdev=20.48, samples=240 iops : min= 1, max= 25, avg= 9.60, stdev= 5.11, samples=240 write: IOPS=10, BW=42.7KiB/s (43.7kB/s)(5264KiB/123273msec); 0 zone resets slat (usec): min=32, max=13413, avg=268.56, stdev=858.64 clat (msec): min=257, max=2361, avg=1030.78, stdev=313.78 lat (msec): min=258, max=2361, avg=1031.05, stdev=313.80 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 567], 10.00th=[ 651], 20.00th=[ 776], | 30.00th=[ 860], 40.00th=[ 927], 50.00th=[ 995], 60.00th=[ 1070], | 70.00th=[ 1150], 80.00th=[ 1267], 90.00th=[ 1452], 95.00th=[ 1603], | 99.00th=[ 1871], 99.50th=[ 2198], 99.90th=[ 2333], 99.95th=[ 2366], | 99.99th=[ 2366] bw ( KiB/s): min= 7, max= 103, per=25.39%, avg=42.91, stdev=20.12, samples=240 iops : min= 1, max= 25, avg=10.21, stdev= 5.11, samples=240 lat (msec) : 10=0.04%, 20=0.04%, 50=0.20%, 100=0.04%, 250=0.94% lat (msec) : 500=30.35%, 750=23.40%, 1000=19.65%, 2000=24.92%, >=2000=0.43% cpu : usr=0.10%, sys=0.56%, ctx=4489, 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=145588: Fri Oct 2 08:53:49 2026 read: IOPS=10, BW=40.4KiB/s (41.4kB/s)(4984KiB/123246msec) slat (usec): min=3356, max=76950, avg=16427.65, stdev=9818.81 clat (msec): min=11, max=1352, avg=471.88, stdev=152.34 lat (msec): min=19, max=1360, avg=488.32, stdev=154.31 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 279], 10.00th=[ 309], 20.00th=[ 351], | 30.00th=[ 384], 40.00th=[ 418], 50.00th=[ 456], 60.00th=[ 485], | 70.00th=[ 527], 80.00th=[ 575], 90.00th=[ 667], 95.00th=[ 751], | 99.00th=[ 911], 99.50th=[ 1150], 99.90th=[ 1267], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 7, max= 104, per=25.21%, avg=40.84, stdev=21.21, samples=239 iops : min= 1, max= 26, avg= 9.69, stdev= 5.34, samples=239 write: IOPS=10, BW=42.6KiB/s (43.7kB/s)(5256KiB/123246msec); 0 zone resets slat (usec): min=29, max=21619, avg=307.53, stdev=989.13 clat (msec): min=117, max=2420, avg=1034.98, stdev=308.46 lat (msec): min=118, max=2420, avg=1035.29, stdev=308.49 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 567], 10.00th=[ 659], 20.00th=[ 785], | 30.00th=[ 869], 40.00th=[ 944], 50.00th=[ 1003], 60.00th=[ 1083], | 70.00th=[ 1167], 80.00th=[ 1284], 90.00th=[ 1435], 95.00th=[ 1569], | 99.00th=[ 1854], 99.50th=[ 2265], 99.90th=[ 2400], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 7, max= 95, per=24.95%, avg=42.17, stdev=18.84, samples=243 iops : min= 1, max= 23, avg=10.02, stdev= 4.72, samples=243 lat (msec) : 20=0.04%, 100=0.16%, 250=1.13%, 500=31.13%, 750=22.62% lat (msec) : 1000=18.67%, 2000=25.86%, >=2000=0.39% cpu : usr=0.09%, sys=0.60%, ctx=4542, 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=145589: Fri Oct 2 08:53:49 2026 read: IOPS=10, BW=41.3KiB/s (42.3kB/s)(5060KiB/122570msec) slat (usec): min=37, max=92630, avg=16107.44, stdev=10316.65 clat (msec): min=22, max=1342, avg=473.79, stdev=147.11 lat (msec): min=32, max=1356, avg=489.91, stdev=149.62 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 275], 10.00th=[ 309], 20.00th=[ 351], | 30.00th=[ 393], 40.00th=[ 422], 50.00th=[ 456], 60.00th=[ 489], | 70.00th=[ 531], 80.00th=[ 584], 90.00th=[ 667], 95.00th=[ 743], | 99.00th=[ 911], 99.50th=[ 978], 99.90th=[ 1217], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 7, max= 103, per=25.60%, avg=41.46, stdev=19.57, samples=239 iops : min= 1, max= 25, avg= 9.84, stdev= 4.91, samples=239 write: IOPS=10, BW=42.3KiB/s (43.3kB/s)(5180KiB/122570msec); 0 zone resets slat (usec): min=30, max=18531, avg=274.65, stdev=941.02 clat (msec): min=137, max=2355, avg=1034.66, stdev=309.22 lat (msec): min=139, max=2355, avg=1034.94, stdev=309.22 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 592], 10.00th=[ 667], 20.00th=[ 785], | 30.00th=[ 869], 40.00th=[ 936], 50.00th=[ 1011], 60.00th=[ 1083], | 70.00th=[ 1150], 80.00th=[ 1267], 90.00th=[ 1452], 95.00th=[ 1569], | 99.00th=[ 1854], 99.50th=[ 2198], 99.90th=[ 2333], 99.95th=[ 2366], | 99.99th=[ 2366] bw ( KiB/s): min= 7, max= 111, per=24.67%, avg=41.69, stdev=19.01, samples=242 iops : min= 1, max= 27, avg= 9.90, stdev= 4.82, samples=242 lat (msec) : 50=0.12%, 100=0.08%, 250=1.09%, 500=30.94%, 750=23.52% lat (msec) : 1000=18.20%, 2000=25.70%, >=2000=0.35% cpu : usr=0.09%, sys=0.60%, ctx=4513, 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=163KiB/s (167kB/s), 40.4KiB/s-41.3KiB/s (41.3kB/s-42.3kB/s), io=19.6MiB (20.5MB), run=122570-123273msec WRITE: bw=169KiB/s (174kB/s), 42.1KiB/s-42.7KiB/s (43.1kB/s-43.7kB/s), io=20.4MiB (21.4MB), run=122570-123273msec 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=145611: Fri Oct 2 08:54:00 2026 read: IOPS=1, BW=70.1MiB/s (73.5MB/s)(40.0MiB/571msec) slat (nsec): min=35722k, max=35722k, avg=35721713.00, stdev= 0.00 clat (nsec): min=509495k, max=509495k, avg=509495012.00, stdev= 0.00 lat (nsec): min=545221k, max=545221k, avg=545221293.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 510], 5.00th=[ 510], 10.00th=[ 510], 20.00th=[ 510], | 30.00th=[ 510], 40.00th=[ 510], 50.00th=[ 510], 60.00th=[ 510], | 70.00th=[ 510], 80.00th=[ 510], 90.00th=[ 510], 95.00th=[ 510], | 99.00th=[ 510], 99.50th=[ 510], 99.90th=[ 510], 99.95th=[ 510], | 99.99th=[ 510] lat (msec) : 750=100.00% cpu : usr=0.18%, sys=2.28%, ctx=43, 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=70.1MiB/s (73.5MB/s), 70.1MiB/s-70.1MiB/s (73.5MB/s-73.5MB/s), io=40.0MiB (41.9MB), run=571-571msec 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