== sanity test 398c: run fio to test AIO ================= 15:30:22 (1787859022) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.394954 s, 106 MB/s osc.lustre-OST0000-osc-ffff9693085d1800.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=147645: Thu Aug 27 15:32:46 2026 write: IOPS=19, BW=76.2KiB/s (78.0kB/s)(10.0MiB/134397msec); 0 zone resets slat (usec): min=27, max=12954, avg=157.51, stdev=507.91 clat (msec): min=305, max=1560, avg=839.52, stdev=186.42 lat (msec): min=305, max=1560, avg=839.68, stdev=186.45 clat percentiles (msec): | 1.00th=[ 451], 5.00th=[ 542], 10.00th=[ 617], 20.00th=[ 693], | 30.00th=[ 751], 40.00th=[ 802], 50.00th=[ 844], 60.00th=[ 877], | 70.00th=[ 919], 80.00th=[ 969], 90.00th=[ 1062], 95.00th=[ 1133], | 99.00th=[ 1401], 99.50th=[ 1485], 99.90th=[ 1552], 99.95th=[ 1569], | 99.99th=[ 1569] bw ( KiB/s): min= 15, max= 254, per=26.25%, avg=79.80, stdev=30.44, samples=253 iops : min= 3, max= 63, avg=19.54, stdev= 7.60, samples=253 lat (msec) : 500=3.32%, 750=26.33%, 1000=54.61%, 2000=15.74% cpu : usr=0.05%, sys=0.21%, ctx=1764, 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=147646: Thu Aug 27 15:32:46 2026 write: IOPS=19, BW=76.2KiB/s (78.1kB/s)(10.0MiB/134321msec); 0 zone resets slat (usec): min=28, max=14980, avg=175.48, stdev=704.32 clat (msec): min=189, max=1622, avg=839.01, stdev=186.40 lat (msec): min=189, max=1622, avg=839.19, stdev=186.42 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 550], 10.00th=[ 617], 20.00th=[ 693], | 30.00th=[ 751], 40.00th=[ 802], 50.00th=[ 844], 60.00th=[ 877], | 70.00th=[ 919], 80.00th=[ 969], 90.00th=[ 1053], 95.00th=[ 1133], | 99.00th=[ 1385], 99.50th=[ 1469], 99.90th=[ 1552], 99.95th=[ 1620], | 99.99th=[ 1620] bw ( KiB/s): min= 8, max= 128, per=25.57%, avg=77.72, stdev=28.68, samples=260 iops : min= 2, max= 32, avg=19.02, stdev= 7.16, samples=260 lat (msec) : 250=0.62%, 500=2.73%, 750=26.80%, 1000=54.26%, 2000=15.59% cpu : usr=0.04%, sys=0.22%, ctx=1849, 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=147647: Thu Aug 27 15:32:46 2026 write: IOPS=19, BW=76.2KiB/s (78.0kB/s)(10.0MiB/134390msec); 0 zone resets slat (usec): min=28, max=21095, avg=178.04, stdev=781.66 clat (msec): min=213, max=1511, avg=838.79, stdev=183.42 lat (msec): min=213, max=1511, avg=838.97, stdev=183.44 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 567], 10.00th=[ 617], 20.00th=[ 676], | 30.00th=[ 743], 40.00th=[ 793], 50.00th=[ 835], 60.00th=[ 877], | 70.00th=[ 927], 80.00th=[ 978], 90.00th=[ 1070], 95.00th=[ 1150], | 99.00th=[ 1334], 99.50th=[ 1351], 99.90th=[ 1469], 99.95th=[ 1502], | 99.99th=[ 1519] bw ( KiB/s): min= 7, max= 128, per=25.40%, avg=77.21, stdev=29.76, samples=261 iops : min= 1, max= 32, avg=18.89, stdev= 7.46, samples=261 lat (msec) : 250=0.08%, 500=2.38%, 750=28.75%, 1000=50.59%, 2000=18.20% cpu : usr=0.05%, sys=0.26%, ctx=2019, 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=147648: Thu Aug 27 15:32:46 2026 write: IOPS=19, BW=76.2KiB/s (78.0kB/s)(10.0MiB/134390msec); 0 zone resets slat (usec): min=28, max=18293, avg=191.28, stdev=743.64 clat (msec): min=256, max=1560, avg=838.75, stdev=184.77 lat (msec): min=257, max=1560, avg=838.94, stdev=184.79 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 550], 10.00th=[ 609], 20.00th=[ 684], | 30.00th=[ 751], 40.00th=[ 793], 50.00th=[ 835], 60.00th=[ 877], | 70.00th=[ 927], 80.00th=[ 978], 90.00th=[ 1062], 95.00th=[ 1150], | 99.00th=[ 1368], 99.50th=[ 1469], 99.90th=[ 1552], 99.95th=[ 1569], | 99.99th=[ 1569] bw ( KiB/s): min= 8, max= 128, per=24.89%, avg=75.67, stdev=27.47, samples=267 iops : min= 2, max= 32, avg=18.50, stdev= 6.90, samples=267 lat (msec) : 500=2.30%, 750=28.09%, 1000=53.67%, 2000=15.94% cpu : usr=0.04%, sys=0.26%, ctx=2063, 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=305KiB/s (312kB/s), 76.2KiB/s-76.2KiB/s (78.0kB/s-78.1kB/s), io=40.0MiB (41.9MB), run=134321-134397msec 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=147677: Thu Aug 27 15:34:46 2026 read: IOPS=11, BW=45.7KiB/s (46.7kB/s)(5048KiB/110574msec) slat (usec): min=2480, max=59984, avg=14243.52, stdev=8751.80 clat (msec): min=12, max=1308, avg=429.00, stdev=148.71 lat (msec): min=21, max=1335, avg=443.25, stdev=151.46 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 257], 10.00th=[ 279], 20.00th=[ 317], | 30.00th=[ 347], 40.00th=[ 372], 50.00th=[ 401], 60.00th=[ 435], | 70.00th=[ 472], 80.00th=[ 523], 90.00th=[ 617], 95.00th=[ 718], | 99.00th=[ 927], 99.50th=[ 986], 99.90th=[ 1284], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min= 7, max= 112, per=25.22%, avg=45.65, stdev=22.09, samples=217 iops : min= 1, max= 28, avg=10.94, stdev= 5.53, samples=217 write: IOPS=11, BW=46.0KiB/s (48.1kB/s)(5192KiB/110574msec); 0 zone resets slat (usec): min=30, max=21039, avg=235.12, stdev=1001.73 clat (msec): min=77, max=2102, avg=929.73, stdev=266.06 lat (msec): min=77, max=2102, avg=929.97, stdev=266.09 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 575], 10.00th=[ 651], 20.00th=[ 718], | 30.00th=[ 793], 40.00th=[ 844], 50.00th=[ 894], 60.00th=[ 936], | 70.00th=[ 1011], 80.00th=[ 1099], 90.00th=[ 1267], 95.00th=[ 1469], | 99.00th=[ 1720], 99.50th=[ 1972], 99.90th=[ 2106], 99.95th=[ 2106], | 99.99th=[ 2106] bw ( KiB/s): min= 7, max= 103, per=24.90%, avg=46.81, stdev=21.03, samples=217 iops : min= 1, max= 25, avg=11.23, stdev= 5.30, samples=217 lat (msec) : 20=0.16%, 50=0.12%, 100=0.20%, 250=1.29%, 500=37.07% lat (msec) : 750=21.05%, 1000=23.95%, 2000=16.02%, >=2000=0.16% cpu : usr=0.09%, sys=0.58%, ctx=4615, 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=147678: Thu Aug 27 15:34:46 2026 read: IOPS=11, BW=45.1KiB/s (46.2kB/s)(4976KiB/110376msec) slat (usec): min=2490, max=76368, avg=14196.09, stdev=8459.79 clat (msec): min=20, max=1155, avg=428.17, stdev=152.78 lat (msec): min=31, max=1169, avg=442.37, stdev=154.73 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 259], 10.00th=[ 284], 20.00th=[ 317], | 30.00th=[ 347], 40.00th=[ 368], 50.00th=[ 397], 60.00th=[ 426], | 70.00th=[ 464], 80.00th=[ 523], 90.00th=[ 625], 95.00th=[ 718], | 99.00th=[ 969], 99.50th=[ 1028], 99.90th=[ 1133], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 7, max= 127, per=24.54%, avg=44.42, stdev=21.85, samples=219 iops : min= 1, max= 31, avg=10.63, stdev= 5.49, samples=219 write: IOPS=11, BW=47.7KiB/s (48.8kB/s)(5264KiB/110376msec); 0 zone resets slat (usec): min=36, max=16192, avg=262.33, stdev=1103.12 clat (msec): min=138, max=2094, avg=921.50, stdev=276.29 lat (msec): min=138, max=2094, avg=921.77, stdev=276.30 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 558], 10.00th=[ 634], 20.00th=[ 709], | 30.00th=[ 768], 40.00th=[ 827], 50.00th=[ 877], 60.00th=[ 936], | 70.00th=[ 1011], 80.00th=[ 1116], 90.00th=[ 1284], 95.00th=[ 1469], | 99.00th=[ 1754], 99.50th=[ 1905], 99.90th=[ 2072], 99.95th=[ 2089], | 99.99th=[ 2089] bw ( KiB/s): min= 7, max= 112, per=25.32%, avg=47.59, stdev=19.75, samples=217 iops : min= 1, max= 28, avg=11.42, stdev= 4.99, samples=217 lat (msec) : 50=0.27%, 100=0.16%, 250=1.60%, 500=36.37%, 750=22.30% lat (msec) : 1000=23.12%, 2000=16.05%, >=2000=0.12% cpu : usr=0.09%, sys=0.59%, ctx=4807, 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=147679: Thu Aug 27 15:34:46 2026 read: IOPS=11, BW=45.1KiB/s (46.2kB/s)(4984KiB/110565msec) slat (usec): min=36, max=69031, avg=13946.14, stdev=8289.39 clat (msec): min=13, max=1019, avg=419.55, stdev=136.65 lat (msec): min=22, max=1047, avg=433.51, stdev=138.85 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 257], 10.00th=[ 279], 20.00th=[ 313], | 30.00th=[ 347], 40.00th=[ 368], 50.00th=[ 393], 60.00th=[ 418], | 70.00th=[ 460], 80.00th=[ 518], 90.00th=[ 609], 95.00th=[ 693], | 99.00th=[ 844], 99.50th=[ 927], 99.90th=[ 1003], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 7, max= 136, per=24.96%, avg=45.18, stdev=22.71, samples=217 iops : min= 1, max= 34, avg=10.82, stdev= 5.71, samples=217 write: IOPS=11, BW=47.5KiB/s (48.7kB/s)(5256KiB/110565msec); 0 zone resets slat (usec): min=34, max=45592, avg=267.08, stdev=1533.72 clat (msec): min=108, max=2162, avg=934.32, stdev=283.24 lat (msec): min=108, max=2162, avg=934.59, stdev=283.22 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 575], 10.00th=[ 642], 20.00th=[ 726], | 30.00th=[ 793], 40.00th=[ 844], 50.00th=[ 885], 60.00th=[ 944], | 70.00th=[ 1020], 80.00th=[ 1116], 90.00th=[ 1284], 95.00th=[ 1519], | 99.00th=[ 1838], 99.50th=[ 2056], 99.90th=[ 2106], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 7, max= 95, per=24.91%, avg=46.83, stdev=19.72, samples=219 iops : min= 1, max= 23, avg=11.24, stdev= 4.94, samples=219 lat (msec) : 20=0.04%, 50=0.12%, 100=0.16%, 250=1.95%, 500=36.48% lat (msec) : 750=20.66%, 1000=24.14%, 2000=16.17%, >=2000=0.27% cpu : usr=0.08%, sys=0.51%, ctx=4497, 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=147680: Thu Aug 27 15:34:46 2026 read: IOPS=11, BW=45.8KiB/s (46.9kB/s)(5060KiB/110470msec) slat (usec): min=2779, max=62809, avg=13727.56, stdev=7866.59 clat (msec): min=10, max=1058, avg=424.13, stdev=149.53 lat (msec): min=25, max=1073, avg=437.86, stdev=151.54 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 255], 10.00th=[ 279], 20.00th=[ 313], | 30.00th=[ 338], 40.00th=[ 363], 50.00th=[ 393], 60.00th=[ 426], | 70.00th=[ 464], 80.00th=[ 523], 90.00th=[ 609], 95.00th=[ 718], | 99.00th=[ 953], 99.50th=[ 1011], 99.90th=[ 1053], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 7, max= 116, per=25.63%, avg=46.39, stdev=22.37, samples=214 iops : min= 1, max= 29, avg=11.13, stdev= 5.65, samples=214 write: IOPS=11, BW=46.9KiB/s (48.0kB/s)(5180KiB/110470msec); 0 zone resets slat (usec): min=33, max=11819, avg=214.28, stdev=665.50 clat (msec): min=83, max=2080, avg=934.78, stdev=279.94 lat (msec): min=83, max=2080, avg=934.99, stdev=279.94 clat percentiles (msec): | 1.00th=[ 456], 5.00th=[ 575], 10.00th=[ 642], 20.00th=[ 726], | 30.00th=[ 776], 40.00th=[ 835], 50.00th=[ 885], 60.00th=[ 944], | 70.00th=[ 1011], 80.00th=[ 1116], 90.00th=[ 1301], 95.00th=[ 1552], | 99.00th=[ 1821], 99.50th=[ 1905], 99.90th=[ 2022], 99.95th=[ 2072], | 99.99th=[ 2072] bw ( KiB/s): min= 7, max= 103, per=24.85%, avg=46.72, stdev=18.14, samples=217 iops : min= 1, max= 25, avg=11.21, stdev= 4.56, samples=217 lat (msec) : 20=0.08%, 50=0.20%, 100=0.31%, 250=1.64%, 500=36.48% lat (msec) : 750=21.45%, 1000=23.95%, 2000=15.78%, >=2000=0.12% cpu : usr=0.09%, sys=0.52%, ctx=4538, 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=181KiB/s (186kB/s), 45.1KiB/s-45.8KiB/s (46.2kB/s-46.9kB/s), io=19.6MiB (20.5MB), run=110376-110574msec WRITE: bw=189KiB/s (193kB/s), 46.9KiB/s-47.7KiB/s (48.0kB/s-48.8kB/s), io=20.4MiB (21.4MB), run=110376-110574msec 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=147700: Thu Aug 27 15:34:57 2026 read: IOPS=1, BW=72.0MiB/s (76.5MB/s)(40.0MiB/548msec) slat (nsec): min=33248k, max=33248k, avg=33247944.00, stdev= 0.00 clat (nsec): min=481034k, max=481034k, avg=481034260.00, stdev= 0.00 lat (nsec): min=514287k, max=514287k, avg=514286532.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 481], 5.00th=[ 481], 10.00th=[ 481], 20.00th=[ 481], | 30.00th=[ 481], 40.00th=[ 481], 50.00th=[ 481], 60.00th=[ 481], | 70.00th=[ 481], 80.00th=[ 481], 90.00th=[ 481], 95.00th=[ 481], | 99.00th=[ 481], 99.50th=[ 481], 99.90th=[ 481], 99.95th=[ 481], | 99.99th=[ 481] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=1.10%, ctx=20, majf=0, minf=9 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=72.0MiB/s (76.5MB/s), 72.0MiB/s-72.0MiB/s (76.5MB/s-76.5MB/s), io=40.0MiB (41.9MB), run=548-548msec 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