== sanity test 398c: run fio to test AIO ================= 13:33:31 (1787852011) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.756772 s, 55.4 MB/s osc.lustre-OST0000-osc-ffff95c7183a9000.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=145481: Thu Aug 27 13:36:17 2026 write: IOPS=16, BW=65.8KiB/s (67.4kB/s)(10.0MiB/155565msec); 0 zone resets slat (usec): min=23, max=13292, avg=187.17, stdev=708.19 clat (msec): min=308, max=2558, avg=970.83, stdev=317.82 lat (msec): min=309, max=2558, avg=971.02, stdev=317.83 clat percentiles (msec): | 1.00th=[ 338], 5.00th=[ 506], 10.00th=[ 651], 20.00th=[ 735], | 30.00th=[ 802], 40.00th=[ 852], 50.00th=[ 927], 60.00th=[ 995], | 70.00th=[ 1062], 80.00th=[ 1183], 90.00th=[ 1385], 95.00th=[ 1620], | 99.00th=[ 2039], 99.50th=[ 2140], 99.90th=[ 2366], 99.95th=[ 2366], | 99.99th=[ 2567] bw ( KiB/s): min= 7, max= 256, per=25.01%, avg=65.78, stdev=32.27, samples=306 iops : min= 1, max= 64, avg=16.00, stdev= 8.12, samples=306 lat (msec) : 500=4.88%, 750=17.07%, 1000=38.55%, 2000=38.16%, >=2000=1.33% cpu : usr=0.05%, sys=0.20%, ctx=1953, 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=145482: Thu Aug 27 13:36:17 2026 write: IOPS=16, BW=65.9KiB/s (67.5kB/s)(10.0MiB/155459msec); 0 zone resets slat (usec): min=23, max=21416, avg=223.42, stdev=1027.53 clat (msec): min=83, max=2497, avg=971.15, stdev=316.09 lat (msec): min=83, max=2497, avg=971.37, stdev=316.10 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 567], 10.00th=[ 651], 20.00th=[ 735], | 30.00th=[ 793], 40.00th=[ 844], 50.00th=[ 919], 60.00th=[ 986], | 70.00th=[ 1062], 80.00th=[ 1183], 90.00th=[ 1418], 95.00th=[ 1620], | 99.00th=[ 1921], 99.50th=[ 2056], 99.90th=[ 2433], 99.95th=[ 2500], | 99.99th=[ 2500] bw ( KiB/s): min= 7, max= 247, per=25.26%, avg=66.44, stdev=30.43, samples=303 iops : min= 1, max= 61, avg=16.16, stdev= 7.63, samples=303 lat (msec) : 100=0.04%, 250=0.08%, 500=3.67%, 750=18.32%, 1000=39.69% lat (msec) : 2000=37.50%, >=2000=0.70% cpu : usr=0.04%, sys=0.23%, ctx=1793, 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=145483: Thu Aug 27 13:36:17 2026 write: IOPS=16, BW=65.8KiB/s (67.4kB/s)(10.0MiB/155562msec); 0 zone resets slat (usec): min=24, max=19472, avg=174.43, stdev=789.72 clat (msec): min=257, max=2554, avg=970.63, stdev=317.86 lat (msec): min=257, max=2554, avg=970.81, stdev=317.89 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 535], 10.00th=[ 642], 20.00th=[ 735], | 30.00th=[ 793], 40.00th=[ 844], 50.00th=[ 927], 60.00th=[ 995], | 70.00th=[ 1083], 80.00th=[ 1167], 90.00th=[ 1435], 95.00th=[ 1620], | 99.00th=[ 1905], 99.50th=[ 2089], 99.90th=[ 2366], 99.95th=[ 2500], | 99.99th=[ 2567] bw ( KiB/s): min= 7, max= 200, per=25.09%, avg=66.00, stdev=31.39, samples=305 iops : min= 1, max= 50, avg=16.05, stdev= 7.86, samples=305 lat (msec) : 500=4.18%, 750=17.93%, 1000=39.18%, 2000=37.93%, >=2000=0.78% cpu : usr=0.04%, sys=0.22%, ctx=1642, 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=145484: Thu Aug 27 13:36:17 2026 write: IOPS=16, BW=65.9KiB/s (67.5kB/s)(10.0MiB/155299msec); 0 zone resets slat (usec): min=22, max=18607, avg=196.47, stdev=839.69 clat (msec): min=162, max=2502, avg=970.09, stdev=316.61 lat (msec): min=163, max=2502, avg=970.29, stdev=316.64 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 550], 10.00th=[ 642], 20.00th=[ 735], | 30.00th=[ 793], 40.00th=[ 844], 50.00th=[ 919], 60.00th=[ 995], | 70.00th=[ 1070], 80.00th=[ 1183], 90.00th=[ 1385], 95.00th=[ 1603], | 99.00th=[ 1989], 99.50th=[ 2123], 99.90th=[ 2232], 99.95th=[ 2232], | 99.99th=[ 2500] bw ( KiB/s): min= 7, max= 191, per=24.93%, avg=65.56, stdev=30.39, samples=307 iops : min= 1, max= 47, avg=15.94, stdev= 7.64, samples=307 lat (msec) : 250=0.20%, 500=3.91%, 750=18.12%, 1000=38.75%, 2000=38.12% lat (msec) : >=2000=0.90% cpu : usr=0.05%, sys=0.22%, ctx=1831, 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=263KiB/s (270kB/s), 65.8KiB/s-65.9KiB/s (67.4kB/s-67.5kB/s), io=40.0MiB (41.9MB), run=155299-155565msec 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=145517: Thu Aug 27 13:38:34 2026 read: IOPS=9, BW=39.6KiB/s (40.5kB/s)(5048KiB/127492msec) slat (msec): min=2, max=155, avg=16.05, stdev=11.44 clat (msec): min=14, max=1422, avg=486.23, stdev=172.06 lat (msec): min=31, max=1444, avg=502.29, stdev=175.02 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 275], 10.00th=[ 313], 20.00th=[ 363], | 30.00th=[ 397], 40.00th=[ 430], 50.00th=[ 460], 60.00th=[ 493], | 70.00th=[ 535], 80.00th=[ 592], 90.00th=[ 684], 95.00th=[ 835], | 99.00th=[ 1083], 99.50th=[ 1116], 99.90th=[ 1351], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 7, max= 120, per=25.43%, avg=39.93, stdev=21.77, samples=247 iops : min= 1, max= 30, avg= 9.45, stdev= 5.50, samples=247 write: IOPS=10, BW=40.7KiB/s (41.7kB/s)(5192KiB/127492msec); 0 zone resets slat (usec): min=25, max=25564, avg=272.11, stdev=1063.58 clat (msec): min=291, max=2379, avg=1078.38, stdev=395.31 lat (msec): min=291, max=2379, avg=1078.65, stdev=395.37 clat percentiles (msec): | 1.00th=[ 426], 5.00th=[ 567], 10.00th=[ 651], 20.00th=[ 751], | 30.00th=[ 835], 40.00th=[ 919], 50.00th=[ 1003], 60.00th=[ 1099], | 70.00th=[ 1234], 80.00th=[ 1351], 90.00th=[ 1636], 95.00th=[ 1921], | 99.00th=[ 2265], 99.50th=[ 2333], 99.90th=[ 2366], 99.95th=[ 2366], | 99.99th=[ 2366] bw ( KiB/s): min= 7, max= 111, per=24.64%, avg=40.17, stdev=20.42, samples=252 iops : min= 1, max= 27, avg= 9.51, stdev= 5.14, samples=252 lat (msec) : 20=0.04%, 50=0.20%, 100=0.23%, 250=1.45%, 500=29.96% lat (msec) : 750=24.14%, 1000=17.62%, 2000=24.57%, >=2000=1.80% cpu : usr=0.08%, sys=0.57%, ctx=4591, 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=145518: Thu Aug 27 13:38:34 2026 read: IOPS=9, BW=39.1KiB/s (40.0kB/s)(4976KiB/127374msec) slat (usec): min=37, max=149153, avg=15800.70, stdev=11306.61 clat (msec): min=25, max=1504, avg=498.63, stdev=180.63 lat (msec): min=31, max=1510, avg=514.43, stdev=184.00 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 284], 10.00th=[ 321], 20.00th=[ 363], | 30.00th=[ 401], 40.00th=[ 435], 50.00th=[ 464], 60.00th=[ 502], | 70.00th=[ 550], 80.00th=[ 609], 90.00th=[ 726], 95.00th=[ 860], | 99.00th=[ 1099], 99.50th=[ 1116], 99.90th=[ 1418], 99.95th=[ 1502], | 99.99th=[ 1502] bw ( KiB/s): min= 7, max= 103, per=25.44%, avg=39.93, stdev=19.27, samples=243 iops : min= 1, max= 25, avg= 9.44, stdev= 4.85, samples=243 write: IOPS=10, BW=41.3KiB/s (42.3kB/s)(5264KiB/127374msec); 0 zone resets slat (usec): min=31, max=23441, avg=270.13, stdev=1195.53 clat (msec): min=152, max=2340, avg=1060.64, stdev=389.54 lat (msec): min=168, max=2341, avg=1060.92, stdev=389.51 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 558], 10.00th=[ 642], 20.00th=[ 735], | 30.00th=[ 810], 40.00th=[ 911], 50.00th=[ 995], 60.00th=[ 1083], | 70.00th=[ 1200], 80.00th=[ 1351], 90.00th=[ 1586], 95.00th=[ 1871], | 99.00th=[ 2198], 99.50th=[ 2299], 99.90th=[ 2333], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 7, max= 119, per=25.14%, avg=40.98, stdev=21.05, samples=251 iops : min= 1, max= 29, avg= 9.71, stdev= 5.31, samples=251 lat (msec) : 50=0.12%, 100=0.23%, 250=1.17%, 500=29.02%, 750=24.92% lat (msec) : 1000=18.36%, 2000=24.49%, >=2000=1.68% cpu : usr=0.08%, sys=0.50%, ctx=4178, 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=145519: Thu Aug 27 13:38:34 2026 read: IOPS=9, BW=39.1KiB/s (40.0kB/s)(4984KiB/127494msec) slat (msec): min=3, max=155, avg=16.35, stdev=11.50 clat (msec): min=10, max=1145, avg=490.70, stdev=171.80 lat (msec): min=31, max=1264, avg=507.05, stdev=174.93 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 271], 10.00th=[ 313], 20.00th=[ 359], | 30.00th=[ 393], 40.00th=[ 426], 50.00th=[ 460], 60.00th=[ 502], | 70.00th=[ 550], 80.00th=[ 609], 90.00th=[ 709], 95.00th=[ 844], | 99.00th=[ 1036], 99.50th=[ 1099], 99.90th=[ 1150], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 7, max= 159, per=25.06%, avg=39.35, stdev=22.33, samples=248 iops : min= 1, max= 39, avg= 9.30, stdev= 5.61, samples=248 write: IOPS=10, BW=41.2KiB/s (42.2kB/s)(5256KiB/127494msec); 0 zone resets slat (usec): min=28, max=29427, avg=285.05, stdev=1395.03 clat (msec): min=340, max=2393, avg=1067.20, stdev=378.80 lat (msec): min=340, max=2395, avg=1067.48, stdev=378.87 clat percentiles (msec): | 1.00th=[ 430], 5.00th=[ 575], 10.00th=[ 651], 20.00th=[ 735], | 30.00th=[ 835], 40.00th=[ 919], 50.00th=[ 1003], 60.00th=[ 1083], | 70.00th=[ 1200], 80.00th=[ 1351], 90.00th=[ 1586], 95.00th=[ 1838], | 99.00th=[ 2165], 99.50th=[ 2232], 99.90th=[ 2333], 99.95th=[ 2400], | 99.99th=[ 2400] bw ( KiB/s): min= 7, max= 119, per=25.00%, avg=40.75, stdev=20.25, samples=251 iops : min= 1, max= 29, avg= 9.65, stdev= 5.15, samples=251 lat (msec) : 20=0.08%, 50=0.08%, 100=0.12%, 250=1.41%, 500=28.87% lat (msec) : 750=25.00%, 1000=17.54%, 2000=25.55%, >=2000=1.37% cpu : usr=0.09%, sys=0.51%, ctx=4419, 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=145520: Thu Aug 27 13:38:34 2026 read: IOPS=9, BW=39.7KiB/s (40.6kB/s)(5060KiB/127492msec) slat (usec): min=1903, max=105383, avg=16032.97, stdev=10566.10 clat (msec): min=20, max=1343, avg=495.33, stdev=169.13 lat (msec): min=26, max=1376, avg=511.37, stdev=172.37 clat percentiles (msec): | 1.00th=[ 215], 5.00th=[ 288], 10.00th=[ 330], 20.00th=[ 372], | 30.00th=[ 401], 40.00th=[ 430], 50.00th=[ 460], 60.00th=[ 493], | 70.00th=[ 542], 80.00th=[ 600], 90.00th=[ 718], 95.00th=[ 835], | 99.00th=[ 1062], 99.50th=[ 1099], 99.90th=[ 1200], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 7, max= 111, per=25.66%, avg=40.29, stdev=20.95, samples=245 iops : min= 1, max= 27, avg= 9.53, stdev= 5.29, samples=245 write: IOPS=10, BW=40.6KiB/s (41.6kB/s)(5180KiB/127492msec); 0 zone resets slat (usec): min=26, max=16591, avg=237.24, stdev=741.94 clat (msec): min=267, max=2429, avg=1071.90, stdev=381.77 lat (msec): min=267, max=2429, avg=1072.14, stdev=381.83 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 575], 10.00th=[ 651], 20.00th=[ 751], | 30.00th=[ 844], 40.00th=[ 927], 50.00th=[ 1011], 60.00th=[ 1099], | 70.00th=[ 1217], 80.00th=[ 1334], 90.00th=[ 1552], 95.00th=[ 1854], | 99.00th=[ 2265], 99.50th=[ 2333], 99.90th=[ 2400], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 7, max= 119, per=25.34%, avg=41.31, stdev=20.48, samples=245 iops : min= 1, max= 29, avg= 9.79, stdev= 5.18, samples=245 lat (msec) : 50=0.04%, 100=0.08%, 250=1.05%, 500=30.78%, 750=23.79% lat (msec) : 1000=17.27%, 2000=25.39%, >=2000=1.60% cpu : usr=0.08%, sys=0.50%, ctx=4426, 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=157KiB/s (161kB/s), 39.1KiB/s-39.7KiB/s (40.0kB/s-40.6kB/s), io=19.6MiB (20.5MB), run=127374-127494msec WRITE: bw=164KiB/s (168kB/s), 40.6KiB/s-41.3KiB/s (41.6kB/s-42.3kB/s), io=20.4MiB (21.4MB), run=127374-127494msec 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=145543: Thu Aug 27 13:38:47 2026 read: IOPS=2, BW=82.3MiB/s (86.3MB/s)(40.0MiB/486msec) slat (nsec): min=45317k, max=45317k, avg=45317325.00, stdev= 0.00 clat (nsec): min=420884k, max=420884k, avg=420884087.00, stdev= 0.00 lat (nsec): min=466235k, max=466235k, avg=466234735.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 422], 10.00th=[ 422], 20.00th=[ 422], | 30.00th=[ 422], 40.00th=[ 422], 50.00th=[ 422], 60.00th=[ 422], | 70.00th=[ 422], 80.00th=[ 422], 90.00th=[ 422], 95.00th=[ 422], | 99.00th=[ 422], 99.50th=[ 422], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.89%, ctx=44, majf=0, minf=7 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=82.3MiB/s (86.3MB/s), 82.3MiB/s-82.3MiB/s (86.3MB/s-86.3MB/s), io=40.0MiB (41.9MB), run=486-486msec 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