== sanity test 398c: run fio to test AIO ================= 10:19:59 (1782224399) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.636839 s, 65.9 MB/s osc.lustre-OST0000-osc-ffff8a3558545000.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=144007: Tue Jun 23 10:23:19 2026 write: IOPS=13, BW=54.9KiB/s (56.2kB/s)(10.0MiB/186657msec); 0 zone resets slat (usec): min=38, max=23155, avg=323.10, stdev=1045.53 clat (msec): min=456, max=3118, avg=1165.14, stdev=425.09 lat (msec): min=458, max=3118, avg=1165.47, stdev=425.11 clat percentiles (msec): | 1.00th=[ 510], 5.00th=[ 693], 10.00th=[ 751], 20.00th=[ 852], | 30.00th=[ 927], 40.00th=[ 995], 50.00th=[ 1083], 60.00th=[ 1167], | 70.00th=[ 1267], 80.00th=[ 1401], 90.00th=[ 1620], 95.00th=[ 2089], | 99.00th=[ 2769], 99.50th=[ 2937], 99.90th=[ 3037], 99.95th=[ 3071], | 99.99th=[ 3104] bw ( KiB/s): min= 7, max= 127, per=25.21%, avg=55.21, stdev=26.27, samples=364 iops : min= 1, max= 31, avg=13.29, stdev= 6.60, samples=364 lat (msec) : 500=0.66%, 750=8.87%, 1000=30.98%, 2000=53.52%, >=2000=5.98% cpu : usr=0.04%, sys=0.29%, ctx=2109, 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=144008: Tue Jun 23 10:23:19 2026 write: IOPS=13, BW=54.9KiB/s (56.2kB/s)(10.0MiB/186435msec); 0 zone resets slat (usec): min=38, max=17135, avg=351.49, stdev=1118.86 clat (msec): min=458, max=3096, avg=1163.29, stdev=422.14 lat (msec): min=458, max=3096, avg=1163.64, stdev=422.15 clat percentiles (msec): | 1.00th=[ 493], 5.00th=[ 676], 10.00th=[ 760], 20.00th=[ 844], | 30.00th=[ 927], 40.00th=[ 1003], 50.00th=[ 1070], 60.00th=[ 1167], | 70.00th=[ 1267], 80.00th=[ 1385], 90.00th=[ 1636], 95.00th=[ 2056], | 99.00th=[ 2769], 99.50th=[ 2937], 99.90th=[ 3104], 99.95th=[ 3104], | 99.99th=[ 3104] bw ( KiB/s): min= 7, max= 128, per=25.07%, avg=54.91, stdev=28.84, samples=366 iops : min= 1, max= 32, avg=13.22, stdev= 7.24, samples=366 lat (msec) : 500=1.21%, 750=8.20%, 1000=30.66%, 2000=54.34%, >=2000=5.59% cpu : usr=0.04%, sys=0.27%, ctx=2092, 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=144009: Tue Jun 23 10:23:19 2026 write: IOPS=13, BW=55.0KiB/s (56.4kB/s)(10.0MiB/186078msec); 0 zone resets slat (usec): min=37, max=25706, avg=368.86, stdev=1268.06 clat (msec): min=102, max=3166, avg=1161.72, stdev=432.81 lat (msec): min=102, max=3166, avg=1162.09, stdev=432.85 clat percentiles (msec): | 1.00th=[ 510], 5.00th=[ 676], 10.00th=[ 743], 20.00th=[ 844], | 30.00th=[ 919], 40.00th=[ 995], 50.00th=[ 1070], 60.00th=[ 1150], | 70.00th=[ 1250], 80.00th=[ 1401], 90.00th=[ 1620], 95.00th=[ 2123], | 99.00th=[ 2769], 99.50th=[ 2970], 99.90th=[ 3104], 99.95th=[ 3104], | 99.99th=[ 3171] bw ( KiB/s): min= 7, max= 135, per=25.41%, avg=55.65, stdev=27.48, samples=361 iops : min= 1, max= 33, avg=13.40, stdev= 6.90, samples=361 lat (msec) : 250=0.27%, 500=0.70%, 750=9.30%, 1000=30.39%, 2000=53.59% lat (msec) : >=2000=5.74% cpu : usr=0.05%, sys=0.28%, ctx=1850, 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=144010: Tue Jun 23 10:23:19 2026 write: IOPS=13, BW=54.9KiB/s (56.2kB/s)(10.0MiB/186654msec); 0 zone resets slat (usec): min=37, max=23914, avg=322.72, stdev=1025.04 clat (msec): min=494, max=3125, avg=1164.75, stdev=427.83 lat (msec): min=495, max=3125, avg=1165.08, stdev=427.79 clat percentiles (msec): | 1.00th=[ 506], 5.00th=[ 684], 10.00th=[ 751], 20.00th=[ 844], | 30.00th=[ 919], 40.00th=[ 995], 50.00th=[ 1083], 60.00th=[ 1150], | 70.00th=[ 1267], 80.00th=[ 1401], 90.00th=[ 1636], 95.00th=[ 2140], | 99.00th=[ 2735], 99.50th=[ 2937], 99.90th=[ 3138], 99.95th=[ 3138], | 99.99th=[ 3138] bw ( KiB/s): min= 7, max= 127, per=25.50%, avg=55.84, stdev=28.81, samples=360 iops : min= 1, max= 31, avg=13.45, stdev= 7.17, samples=360 lat (msec) : 500=0.62%, 750=9.30%, 1000=30.78%, 2000=53.55%, >=2000=5.74% cpu : usr=0.05%, sys=0.30%, ctx=1948, 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=219KiB/s (225kB/s), 54.9KiB/s-55.0KiB/s (56.2kB/s-56.4kB/s), io=40.0MiB (41.9MB), run=186078-186657msec 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=144047: Tue Jun 23 10:25:53 2026 read: IOPS=9, BW=36.1KiB/s (36.9kB/s)(5048KiB/139933msec) slat (usec): min=101, max=84427, avg=19300.06, stdev=10690.02 clat (msec): min=29, max=1797, avg=544.40, stdev=166.38 lat (msec): min=29, max=1816, avg=563.70, stdev=167.98 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 317], 10.00th=[ 372], 20.00th=[ 430], | 30.00th=[ 464], 40.00th=[ 498], 50.00th=[ 531], 60.00th=[ 567], | 70.00th=[ 600], 80.00th=[ 651], 90.00th=[ 726], 95.00th=[ 810], | 99.00th=[ 986], 99.50th=[ 1183], 99.90th=[ 1770], 99.95th=[ 1804], | 99.99th=[ 1804] bw ( KiB/s): min= 7, max= 112, per=26.30%, avg=37.34, stdev=18.82, samples=264 iops : min= 1, max= 28, avg= 8.79, stdev= 4.74, samples=264 write: IOPS=9, BW=37.1KiB/s (37.0kB/s)(5192KiB/139933msec); 0 zone resets slat (usec): min=42, max=14215, avg=453.97, stdev=1232.10 clat (msec): min=119, max=2835, avg=1174.61, stdev=380.08 lat (msec): min=120, max=2835, avg=1175.06, stdev=380.08 clat percentiles (msec): | 1.00th=[ 359], 5.00th=[ 609], 10.00th=[ 743], 20.00th=[ 869], | 30.00th=[ 969], 40.00th=[ 1062], 50.00th=[ 1150], 60.00th=[ 1234], | 70.00th=[ 1318], 80.00th=[ 1435], 90.00th=[ 1653], 95.00th=[ 1854], | 99.00th=[ 2265], 99.50th=[ 2467], 99.90th=[ 2735], 99.95th=[ 2836], | 99.99th=[ 2836] bw ( KiB/s): min= 7, max= 103, per=25.03%, avg=37.05, stdev=17.93, samples=272 iops : min= 1, max= 25, avg= 8.72, stdev= 4.50, samples=272 lat (msec) : 50=0.23%, 100=0.23%, 250=0.59%, 500=20.00%, 750=29.30% lat (msec) : 1000=15.94%, 2000=31.95%, >=2000=1.76% cpu : usr=0.09%, sys=0.62%, ctx=4412, 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=144048: Tue Jun 23 10:25:53 2026 read: IOPS=8, BW=35.5KiB/s (36.4kB/s)(4976KiB/140146msec) slat (usec): min=3803, max=86829, avg=19097.84, stdev=10693.88 clat (msec): min=70, max=1287, avg=544.91, stdev=152.04 lat (msec): min=87, max=1304, avg=564.02, stdev=154.02 clat percentiles (msec): | 1.00th=[ 259], 5.00th=[ 338], 10.00th=[ 368], 20.00th=[ 422], | 30.00th=[ 460], 40.00th=[ 498], 50.00th=[ 531], 60.00th=[ 575], | 70.00th=[ 609], 80.00th=[ 651], 90.00th=[ 735], 95.00th=[ 810], | 99.00th=[ 986], 99.50th=[ 1116], 99.90th=[ 1267], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 7, max= 88, per=25.08%, avg=35.61, stdev=16.97, samples=272 iops : min= 1, max= 22, avg= 8.34, stdev= 4.29, samples=272 write: IOPS=9, BW=37.6KiB/s (38.5kB/s)(5264KiB/140146msec); 0 zone resets slat (usec): min=59, max=17949, avg=441.35, stdev=1286.86 clat (msec): min=255, max=2421, avg=1168.03, stdev=356.62 lat (msec): min=255, max=2423, avg=1168.48, stdev=356.59 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 651], 10.00th=[ 760], 20.00th=[ 877], | 30.00th=[ 969], 40.00th=[ 1053], 50.00th=[ 1150], 60.00th=[ 1217], | 70.00th=[ 1318], 80.00th=[ 1435], 90.00th=[ 1620], 95.00th=[ 1821], | 99.00th=[ 2165], 99.50th=[ 2265], 99.90th=[ 2366], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 7, max= 110, per=25.16%, avg=37.24, stdev=19.05, samples=275 iops : min= 1, max= 27, avg= 8.75, stdev= 4.81, samples=275 lat (msec) : 100=0.16%, 250=0.23%, 500=20.82%, 750=27.70%, 1000=16.64% lat (msec) : 2000=33.28%, >=2000=1.17% cpu : usr=0.09%, sys=0.60%, ctx=4110, 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=144049: Tue Jun 23 10:25:53 2026 read: IOPS=8, BW=35.5KiB/s (36.4kB/s)(4984KiB/140384msec) slat (usec): min=3260, max=86432, avg=19242.35, stdev=10720.24 clat (msec): min=54, max=1316, avg=541.23, stdev=155.23 lat (msec): min=82, max=1367, avg=560.49, stdev=157.40 clat percentiles (msec): | 1.00th=[ 239], 5.00th=[ 338], 10.00th=[ 368], 20.00th=[ 418], | 30.00th=[ 456], 40.00th=[ 489], 50.00th=[ 527], 60.00th=[ 558], | 70.00th=[ 600], 80.00th=[ 659], 90.00th=[ 735], 95.00th=[ 810], | 99.00th=[ 1028], 99.50th=[ 1116], 99.90th=[ 1284], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 7, max= 111, per=25.19%, avg=35.76, stdev=19.02, samples=272 iops : min= 1, max= 27, avg= 8.39, stdev= 4.79, samples=272 write: IOPS=9, BW=37.4KiB/s (38.3kB/s)(5256KiB/140384msec); 0 zone resets slat (usec): min=55, max=32331, avg=449.65, stdev=1529.22 clat (msec): min=290, max=2447, avg=1174.28, stdev=354.82 lat (msec): min=290, max=2448, avg=1174.74, stdev=354.89 clat percentiles (msec): | 1.00th=[ 451], 5.00th=[ 642], 10.00th=[ 760], 20.00th=[ 877], | 30.00th=[ 978], 40.00th=[ 1062], 50.00th=[ 1133], 60.00th=[ 1234], | 70.00th=[ 1334], 80.00th=[ 1452], 90.00th=[ 1670], 95.00th=[ 1804], | 99.00th=[ 2165], 99.50th=[ 2232], 99.90th=[ 2299], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 7, max= 110, per=24.97%, avg=36.96, stdev=17.81, samples=275 iops : min= 1, max= 27, avg= 8.68, stdev= 4.48, samples=275 lat (msec) : 100=0.20%, 250=0.39%, 500=21.45%, 750=27.23%, 1000=15.90% lat (msec) : 2000=33.79%, >=2000=1.05% cpu : usr=0.10%, sys=0.67%, ctx=4281, 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=144050: Tue Jun 23 10:25:53 2026 read: IOPS=9, BW=36.1KiB/s (36.9kB/s)(5060KiB/140285msec) slat (usec): min=3914, max=82996, avg=19119.61, stdev=10783.16 clat (msec): min=17, max=1332, avg=538.05, stdev=160.18 lat (msec): min=30, max=1395, avg=557.19, stdev=162.52 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 338], 10.00th=[ 363], 20.00th=[ 418], | 30.00th=[ 451], 40.00th=[ 485], 50.00th=[ 523], 60.00th=[ 558], | 70.00th=[ 592], 80.00th=[ 642], 90.00th=[ 743], 95.00th=[ 827], | 99.00th=[ 1028], 99.50th=[ 1167], 99.90th=[ 1318], 99.95th=[ 1334], | 99.99th=[ 1334] bw ( KiB/s): min= 7, max= 126, per=25.73%, avg=36.54, stdev=18.68, samples=270 iops : min= 1, max= 31, avg= 8.59, stdev= 4.70, samples=270 write: IOPS=9, BW=36.9KiB/s (37.8kB/s)(5180KiB/140285msec); 0 zone resets slat (usec): min=42, max=20634, avg=456.15, stdev=1412.36 clat (msec): min=258, max=2428, avg=1185.07, stdev=352.27 lat (msec): min=258, max=2428, avg=1185.52, stdev=352.32 clat percentiles (msec): | 1.00th=[ 451], 5.00th=[ 676], 10.00th=[ 760], 20.00th=[ 877], | 30.00th=[ 986], 40.00th=[ 1083], 50.00th=[ 1150], 60.00th=[ 1234], | 70.00th=[ 1334], 80.00th=[ 1469], 90.00th=[ 1653], 95.00th=[ 1821], | 99.00th=[ 2123], 99.50th=[ 2232], 99.90th=[ 2400], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 7, max= 103, per=25.02%, avg=37.03, stdev=17.47, samples=272 iops : min= 1, max= 25, avg= 8.70, stdev= 4.40, samples=272 lat (msec) : 20=0.04%, 50=0.16%, 100=0.20%, 250=0.59%, 500=21.88% lat (msec) : 750=26.25%, 1000=15.74%, 2000=34.10%, >=2000=1.05% cpu : usr=0.09%, sys=0.64%, ctx=4354, 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=143KiB/s (146kB/s), 35.5KiB/s-36.1KiB/s (36.4kB/s-36.9kB/s), io=19.6MiB (20.5MB), run=139933-140384msec WRITE: bw=149KiB/s (152kB/s), 36.9KiB/s-37.6KiB/s (37.8kB/s-38.5kB/s), io=20.4MiB (21.4MB), run=139933-140384msec 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=144075: Tue Jun 23 10:26:10 2026 read: IOPS=1, BW=44.1MiB/s (46.2MB/s)(40.0MiB/908msec) slat (nsec): min=71317k, max=71317k, avg=71316667.00, stdev= 0.00 clat (nsec): min=783931k, max=783931k, avg=783931038.00, stdev= 0.00 lat (nsec): min=855253k, max=855253k, avg=855252553.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 785], 5.00th=[ 785], 10.00th=[ 785], 20.00th=[ 785], | 30.00th=[ 785], 40.00th=[ 785], 50.00th=[ 785], 60.00th=[ 785], | 70.00th=[ 785], 80.00th=[ 785], 90.00th=[ 785], 95.00th=[ 785], | 99.00th=[ 785], 99.50th=[ 785], 99.90th=[ 785], 99.95th=[ 785], | 99.99th=[ 785] lat (msec) : 1000=100.00% cpu : usr=0.00%, sys=1.43%, ctx=36, 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=44.1MiB/s (46.2MB/s), 44.1MiB/s-44.1MiB/s (46.2MB/s-46.2MB/s), io=40.0MiB (41.9MB), run=908-908msec 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