== sanity test 398c: run fio to test AIO ================= 07:30:26 (1787398226) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.421584 s, 99.5 MB/s osc.lustre-OST0000-osc-ffff9fe942e95800.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=146674: Sat Aug 22 07:33:10 2026 write: IOPS=16, BW=65.6KiB/s (67.1kB/s)(10.0MiB/156157msec); 0 zone resets slat (usec): min=51, max=15713, avg=372.67, stdev=956.64 clat (msec): min=157, max=2210, avg=974.65, stdev=268.01 lat (msec): min=157, max=2210, avg=975.02, stdev=268.02 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 592], 10.00th=[ 676], 20.00th=[ 768], | 30.00th=[ 852], 40.00th=[ 902], 50.00th=[ 961], 60.00th=[ 1011], | 70.00th=[ 1070], 80.00th=[ 1150], 90.00th=[ 1318], 95.00th=[ 1452], | 99.00th=[ 1720], 99.50th=[ 1905], 99.90th=[ 2165], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 197, per=24.87%, avg=65.15, stdev=26.18, samples=309 iops : min= 1, max= 49, avg=15.80, stdev= 6.58, samples=309 lat (msec) : 250=0.39%, 500=2.89%, 750=13.12%, 1000=41.17%, 2000=42.11% lat (msec) : >=2000=0.31% cpu : usr=0.04%, sys=0.30%, ctx=1938, 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=146675: Sat Aug 22 07:33:10 2026 write: IOPS=16, BW=65.6KiB/s (67.2kB/s)(10.0MiB/155993msec); 0 zone resets slat (usec): min=45, max=24084, avg=380.50, stdev=1130.71 clat (msec): min=267, max=2064, avg=973.61, stdev=265.90 lat (msec): min=267, max=2064, avg=973.99, stdev=265.90 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 575], 10.00th=[ 667], 20.00th=[ 785], | 30.00th=[ 835], 40.00th=[ 885], 50.00th=[ 944], 60.00th=[ 1011], | 70.00th=[ 1083], 80.00th=[ 1167], 90.00th=[ 1318], 95.00th=[ 1452], | 99.00th=[ 1720], 99.50th=[ 1821], 99.90th=[ 2022], 99.95th=[ 2072], | 99.99th=[ 2072] bw ( KiB/s): min= 7, max= 184, per=25.03%, avg=65.59, stdev=30.64, samples=307 iops : min= 1, max= 46, avg=15.91, stdev= 7.67, samples=307 lat (msec) : 500=2.93%, 750=14.06%, 1000=42.23%, 2000=40.66%, >=2000=0.12% cpu : usr=0.05%, sys=0.32%, ctx=2255, 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=146676: Sat Aug 22 07:33:10 2026 write: IOPS=16, BW=65.6KiB/s (67.2kB/s)(10.0MiB/155996msec); 0 zone resets slat (usec): min=48, max=17094, avg=380.37, stdev=1104.31 clat (msec): min=172, max=2158, avg=973.74, stdev=268.94 lat (msec): min=172, max=2158, avg=974.12, stdev=268.95 clat percentiles (msec): | 1.00th=[ 338], 5.00th=[ 575], 10.00th=[ 667], 20.00th=[ 776], | 30.00th=[ 852], 40.00th=[ 902], 50.00th=[ 961], 60.00th=[ 1020], | 70.00th=[ 1070], 80.00th=[ 1167], 90.00th=[ 1301], 95.00th=[ 1452], | 99.00th=[ 1770], 99.50th=[ 1854], 99.90th=[ 2140], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 7, max= 255, per=24.79%, avg=64.95, stdev=31.73, samples=310 iops : min= 1, max= 63, avg=15.75, stdev= 7.95, samples=310 lat (msec) : 250=0.70%, 500=2.62%, 750=13.75%, 1000=39.41%, 2000=43.09% lat (msec) : >=2000=0.43% cpu : usr=0.04%, sys=0.32%, ctx=2107, 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=146677: Sat Aug 22 07:33:10 2026 write: IOPS=16, BW=65.8KiB/s (67.4kB/s)(10.0MiB/155575msec); 0 zone resets slat (usec): min=50, max=17942, avg=384.74, stdev=1034.00 clat (msec): min=78, max=2220, avg=971.63, stdev=271.82 lat (msec): min=78, max=2220, avg=972.02, stdev=271.81 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 575], 10.00th=[ 667], 20.00th=[ 776], | 30.00th=[ 852], 40.00th=[ 894], 50.00th=[ 953], 60.00th=[ 1020], | 70.00th=[ 1083], 80.00th=[ 1167], 90.00th=[ 1284], 95.00th=[ 1435], | 99.00th=[ 1770], 99.50th=[ 1905], 99.90th=[ 2140], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 7, max= 207, per=24.95%, avg=65.36, stdev=30.21, samples=308 iops : min= 1, max= 51, avg=15.85, stdev= 7.61, samples=308 lat (msec) : 100=0.12%, 250=0.66%, 500=3.05%, 750=13.55%, 1000=39.34% lat (msec) : 2000=43.12%, >=2000=0.16% cpu : usr=0.05%, sys=0.33%, ctx=2298, 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 Run status group 0 (all jobs): WRITE: bw=262KiB/s (269kB/s), 65.6KiB/s-65.8KiB/s (67.1kB/s-67.4kB/s), io=40.0MiB (41.9MB), run=155575-156157msec 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=146710: Sat Aug 22 07:35:14 2026 read: IOPS=11, BW=44.0KiB/s (45.1kB/s)(5048KiB/114613msec) slat (usec): min=3287, max=81522, avg=15271.16, stdev=8682.38 clat (msec): min=24, max=1049, avg=431.40, stdev=129.19 lat (msec): min=41, max=1063, avg=446.68, stdev=131.12 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 266], 10.00th=[ 309], 20.00th=[ 338], | 30.00th=[ 363], 40.00th=[ 393], 50.00th=[ 414], 60.00th=[ 435], | 70.00th=[ 464], 80.00th=[ 510], 90.00th=[ 592], 95.00th=[ 676], | 99.00th=[ 860], 99.50th=[ 944], 99.90th=[ 1011], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 7, max= 104, per=25.11%, avg=43.69, stdev=20.38, samples=226 iops : min= 1, max= 26, avg=10.41, stdev= 5.16, samples=226 write: IOPS=11, BW=45.3KiB/s (46.4kB/s)(5192KiB/114613msec); 0 zone resets slat (usec): min=52, max=38079, avg=426.10, stdev=1327.11 clat (msec): min=215, max=2358, avg=974.64, stdev=295.93 lat (msec): min=216, max=2358, avg=975.08, stdev=296.00 clat percentiles (msec): | 1.00th=[ 414], 5.00th=[ 600], 10.00th=[ 659], 20.00th=[ 760], | 30.00th=[ 818], 40.00th=[ 877], 50.00th=[ 927], 60.00th=[ 986], | 70.00th=[ 1062], 80.00th=[ 1167], 90.00th=[ 1318], 95.00th=[ 1569], | 99.00th=[ 2005], 99.50th=[ 2123], 99.90th=[ 2232], 99.95th=[ 2366], | 99.99th=[ 2366] bw ( KiB/s): min= 7, max= 112, per=24.78%, avg=45.11, stdev=20.42, samples=225 iops : min= 1, max= 28, avg=10.76, stdev= 5.13, samples=225 lat (msec) : 50=0.12%, 100=0.31%, 250=1.33%, 500=37.89%, 750=18.01% lat (msec) : 1000=22.97%, 2000=18.87%, >=2000=0.51% cpu : usr=0.10%, sys=0.72%, ctx=4543, 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=146711: Sat Aug 22 07:35:14 2026 read: IOPS=10, BW=43.4KiB/s (44.4kB/s)(4976KiB/114698msec) slat (usec): min=3266, max=79314, avg=15257.24, stdev=8588.54 clat (msec): min=24, max=1027, avg=429.26, stdev=132.31 lat (msec): min=34, max=1046, avg=444.52, stdev=134.34 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 271], 10.00th=[ 300], 20.00th=[ 334], | 30.00th=[ 359], 40.00th=[ 384], 50.00th=[ 405], 60.00th=[ 426], | 70.00th=[ 460], 80.00th=[ 510], 90.00th=[ 592], 95.00th=[ 693], | 99.00th=[ 860], 99.50th=[ 927], 99.90th=[ 1011], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 7, max= 120, per=24.60%, avg=42.81, stdev=21.74, samples=227 iops : min= 1, max= 30, avg=10.19, stdev= 5.47, samples=227 write: IOPS=11, BW=45.9KiB/s (46.0kB/s)(5264KiB/114698msec); 0 zone resets slat (usec): min=55, max=11707, avg=392.85, stdev=886.97 clat (msec): min=138, max=2436, avg=971.27, stdev=303.37 lat (msec): min=138, max=2436, avg=971.67, stdev=303.34 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 584], 10.00th=[ 651], 20.00th=[ 743], | 30.00th=[ 818], 40.00th=[ 877], 50.00th=[ 936], 60.00th=[ 995], | 70.00th=[ 1062], 80.00th=[ 1167], 90.00th=[ 1318], 95.00th=[ 1519], | 99.00th=[ 2106], 99.50th=[ 2198], 99.90th=[ 2433], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 7, max= 104, per=25.03%, avg=45.55, stdev=20.81, samples=226 iops : min= 1, max= 26, avg=10.88, stdev= 5.25, samples=226 lat (msec) : 50=0.12%, 100=0.23%, 250=0.90%, 500=37.89%, 750=18.55% lat (msec) : 1000=22.07%, 2000=19.53%, >=2000=0.70% cpu : usr=0.09%, sys=0.73%, ctx=4484, 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=146712: Sat Aug 22 07:35:14 2026 read: IOPS=10, BW=43.5KiB/s (44.6kB/s)(4984KiB/114545msec) slat (usec): min=114, max=80028, avg=15132.26, stdev=8425.30 clat (msec): min=19, max=1065, avg=425.87, stdev=128.02 lat (msec): min=21, max=1091, avg=441.01, stdev=130.38 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 255], 10.00th=[ 305], 20.00th=[ 338], | 30.00th=[ 368], 40.00th=[ 388], 50.00th=[ 409], 60.00th=[ 430], | 70.00th=[ 460], 80.00th=[ 502], 90.00th=[ 584], 95.00th=[ 651], | 99.00th=[ 860], 99.50th=[ 978], 99.90th=[ 1020], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 7, max= 127, per=25.18%, avg=43.81, stdev=22.59, samples=223 iops : min= 1, max= 31, avg=10.43, stdev= 5.69, samples=223 write: IOPS=11, BW=45.9KiB/s (46.0kB/s)(5256KiB/114545msec); 0 zone resets slat (usec): min=55, max=25673, avg=372.63, stdev=1056.96 clat (msec): min=92, max=2458, avg=975.10, stdev=299.36 lat (msec): min=94, max=2458, avg=975.47, stdev=299.33 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 575], 10.00th=[ 651], 20.00th=[ 751], | 30.00th=[ 827], 40.00th=[ 885], 50.00th=[ 944], 60.00th=[ 995], | 70.00th=[ 1070], 80.00th=[ 1167], 90.00th=[ 1334], 95.00th=[ 1536], | 99.00th=[ 1972], 99.50th=[ 2165], 99.90th=[ 2433], 99.95th=[ 2467], | 99.99th=[ 2467] bw ( KiB/s): min= 7, max= 112, per=24.88%, avg=45.28, stdev=21.54, samples=226 iops : min= 1, max= 28, avg=10.81, stdev= 5.44, samples=226 lat (msec) : 20=0.04%, 50=0.27%, 100=0.35%, 250=1.64%, 500=38.16% lat (msec) : 750=17.58%, 1000=21.76%, 2000=19.77%, >=2000=0.43% cpu : usr=0.10%, sys=0.69%, ctx=4554, 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=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=146713: Sat Aug 22 07:35:14 2026 read: IOPS=11, BW=44.4KiB/s (45.4kB/s)(5060KiB/114046msec) slat (usec): min=3245, max=82177, avg=15375.56, stdev=9040.21 clat (msec): min=13, max=1029, avg=428.60, stdev=127.89 lat (msec): min=19, max=1043, avg=443.99, stdev=129.97 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 262], 10.00th=[ 300], 20.00th=[ 334], | 30.00th=[ 368], 40.00th=[ 388], 50.00th=[ 409], 60.00th=[ 435], | 70.00th=[ 464], 80.00th=[ 510], 90.00th=[ 584], 95.00th=[ 667], | 99.00th=[ 860], 99.50th=[ 927], 99.90th=[ 995], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 7, max= 151, per=25.25%, avg=43.93, stdev=20.78, samples=225 iops : min= 1, max= 37, avg=10.47, stdev= 5.25, samples=225 write: IOPS=11, BW=45.4KiB/s (46.5kB/s)(5180KiB/114046msec); 0 zone resets slat (usec): min=55, max=22492, avg=436.61, stdev=1145.30 clat (msec): min=233, max=2241, avg=972.10, stdev=303.06 lat (msec): min=233, max=2242, avg=972.54, stdev=303.01 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 592], 10.00th=[ 642], 20.00th=[ 743], | 30.00th=[ 810], 40.00th=[ 885], 50.00th=[ 936], 60.00th=[ 995], | 70.00th=[ 1062], 80.00th=[ 1167], 90.00th=[ 1334], 95.00th=[ 1552], | 99.00th=[ 2039], 99.50th=[ 2123], 99.90th=[ 2232], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 7, max= 120, per=24.62%, avg=44.81, stdev=20.98, samples=226 iops : min= 1, max= 30, avg=10.69, stdev= 5.26, samples=226 lat (msec) : 20=0.04%, 50=0.12%, 100=0.27%, 250=1.76%, 500=37.62% lat (msec) : 750=19.38%, 1000=21.09%, 2000=19.02%, >=2000=0.70% cpu : usr=0.09%, sys=0.69%, ctx=4779, 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=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=175KiB/s (179kB/s), 43.4KiB/s-44.4KiB/s (44.4kB/s-45.4kB/s), io=19.6MiB (20.5MB), run=114046-114698msec WRITE: bw=182KiB/s (187kB/s), 45.3KiB/s-45.9KiB/s (46.4kB/s-46.0kB/s), io=20.4MiB (21.4MB), run=114046-114698msec 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=146734: Sat Aug 22 07:35:23 2026 read: IOPS=2, BW=83.5MiB/s (87.6MB/s)(40.0MiB/479msec) slat (nsec): min=33587k, max=33587k, avg=33587324.00, stdev= 0.00 clat (nsec): min=431480k, max=431480k, avg=431479780.00, stdev= 0.00 lat (nsec): min=465072k, max=465072k, avg=465072422.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 430], 5.00th=[ 430], 10.00th=[ 430], 20.00th=[ 430], | 30.00th=[ 430], 40.00th=[ 430], 50.00th=[ 430], 60.00th=[ 430], | 70.00th=[ 430], 80.00th=[ 430], 90.00th=[ 430], 95.00th=[ 430], | 99.00th=[ 430], 99.50th=[ 430], 99.90th=[ 430], 99.95th=[ 430], | 99.99th=[ 430] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.51%, ctx=33, 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=83.5MiB/s (87.6MB/s), 83.5MiB/s-83.5MiB/s (87.6MB/s-87.6MB/s), io=40.0MiB (41.9MB), run=479-479msec 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