== sanity test 398c: run fio to test AIO ================= 13:30:28 (1785778228) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.616462 s, 68.0 MB/s osc.lustre-OST0000-osc-ffff980ac4c9d000.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=145371: Mon Aug 3 13:35:25 2026 write: IOPS=9, BW=36.4KiB/s (37.2kB/s)(10.0MiB/281584msec); 0 zone resets slat (usec): min=48, max=27976, avg=355.14, stdev=1505.49 clat (msec): min=166, max=3458, avg=1758.07, stdev=678.85 lat (msec): min=166, max=3458, avg=1758.43, stdev=678.85 clat percentiles (msec): | 1.00th=[ 617], 5.00th=[ 735], 10.00th=[ 818], 20.00th=[ 1036], | 30.00th=[ 1351], 40.00th=[ 1569], 50.00th=[ 1770], 60.00th=[ 1972], | 70.00th=[ 2123], 80.00th=[ 2400], 90.00th=[ 2702], 95.00th=[ 2903], | 99.00th=[ 3239], 99.50th=[ 3272], 99.90th=[ 3440], 99.95th=[ 3473], | 99.99th=[ 3473] bw ( KiB/s): min= 7, max= 127, per=26.59%, avg=38.55, stdev=25.12, samples=519 iops : min= 1, max= 31, avg= 9.16, stdev= 6.30, samples=519 lat (msec) : 250=0.04%, 500=0.35%, 750=5.47%, 1000=11.68%, 2000=44.57% lat (msec) : >=2000=37.89% cpu : usr=0.02%, sys=0.17%, ctx=1977, 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=145372: Mon Aug 3 13:35:25 2026 write: IOPS=9, BW=36.4KiB/s (37.2kB/s)(10.0MiB/281532msec); 0 zone resets slat (usec): min=49, max=21961, avg=322.05, stdev=1197.03 clat (msec): min=404, max=3568, avg=1757.50, stdev=683.19 lat (msec): min=404, max=3568, avg=1757.82, stdev=683.25 clat percentiles (msec): | 1.00th=[ 609], 5.00th=[ 751], 10.00th=[ 802], 20.00th=[ 1036], | 30.00th=[ 1301], 40.00th=[ 1569], 50.00th=[ 1770], 60.00th=[ 1955], | 70.00th=[ 2123], 80.00th=[ 2366], 90.00th=[ 2702], 95.00th=[ 2937], | 99.00th=[ 3205], 99.50th=[ 3339], 99.90th=[ 3540], 99.95th=[ 3574], | 99.99th=[ 3574] bw ( KiB/s): min= 7, max= 128, per=27.96%, avg=40.54, stdev=27.68, samples=494 iops : min= 1, max= 32, avg= 9.65, stdev= 6.92, samples=494 lat (msec) : 500=0.12%, 750=5.04%, 1000=12.70%, 2000=45.78%, >=2000=36.37% cpu : usr=0.03%, sys=0.18%, ctx=1835, 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=145373: Mon Aug 3 13:35:25 2026 write: IOPS=9, BW=36.4KiB/s (37.3kB/s)(10.0MiB/281231msec); 0 zone resets slat (usec): min=48, max=35896, avg=327.06, stdev=1362.84 clat (msec): min=316, max=3503, avg=1756.64, stdev=688.55 lat (msec): min=316, max=3503, avg=1756.96, stdev=688.59 clat percentiles (msec): | 1.00th=[ 567], 5.00th=[ 718], 10.00th=[ 827], 20.00th=[ 1036], | 30.00th=[ 1318], 40.00th=[ 1569], 50.00th=[ 1754], 60.00th=[ 1972], | 70.00th=[ 2140], 80.00th=[ 2366], 90.00th=[ 2702], 95.00th=[ 2937], | 99.00th=[ 3239], 99.50th=[ 3306], 99.90th=[ 3473], 99.95th=[ 3507], | 99.99th=[ 3507] bw ( KiB/s): min= 7, max= 128, per=27.83%, avg=40.35, stdev=29.21, samples=496 iops : min= 1, max= 32, avg= 9.61, stdev= 7.33, samples=496 lat (msec) : 500=0.70%, 750=5.16%, 1000=13.01%, 2000=42.58%, >=2000=38.55% cpu : usr=0.03%, sys=0.17%, ctx=1738, 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=145374: Mon Aug 3 13:35:25 2026 write: IOPS=9, BW=36.4KiB/s (37.2kB/s)(10.0MiB/281574msec); 0 zone resets slat (usec): min=47, max=29332, avg=320.47, stdev=1186.20 clat (msec): min=495, max=3331, avg=1757.83, stdev=677.22 lat (msec): min=495, max=3332, avg=1758.15, stdev=677.28 clat percentiles (msec): | 1.00th=[ 600], 5.00th=[ 735], 10.00th=[ 810], 20.00th=[ 1028], | 30.00th=[ 1351], 40.00th=[ 1569], 50.00th=[ 1787], 60.00th=[ 1938], | 70.00th=[ 2140], 80.00th=[ 2366], 90.00th=[ 2702], 95.00th=[ 2869], | 99.00th=[ 3171], 99.50th=[ 3239], 99.90th=[ 3272], 99.95th=[ 3272], | 99.99th=[ 3339] bw ( KiB/s): min= 7, max= 127, per=27.95%, avg=40.53, stdev=26.67, samples=494 iops : min= 1, max= 31, avg= 9.65, stdev= 6.68, samples=494 lat (msec) : 500=0.08%, 750=5.74%, 1000=12.62%, 2000=45.12%, >=2000=36.45% cpu : usr=0.02%, sys=0.18%, ctx=1793, 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=145KiB/s (149kB/s), 36.4KiB/s-36.4KiB/s (37.2kB/s-37.3kB/s), io=40.0MiB (41.9MB), run=281231-281584msec 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=145425: Mon Aug 3 13:38:28 2026 read: IOPS=7, BW=29.7KiB/s (30.4kB/s)(5048KiB/170243msec) slat (usec): min=52, max=99155, avg=18125.46, stdev=12331.89 clat (msec): min=28, max=1323, avg=658.72, stdev=251.12 lat (msec): min=45, max=1339, avg=676.86, stdev=255.19 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 288], 10.00th=[ 330], 20.00th=[ 401], | 30.00th=[ 498], 40.00th=[ 584], 50.00th=[ 659], 60.00th=[ 743], | 70.00th=[ 818], 80.00th=[ 885], 90.00th=[ 986], 95.00th=[ 1070], | 99.00th=[ 1217], 99.50th=[ 1250], 99.90th=[ 1301], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 7, max= 104, per=26.93%, avg=31.51, stdev=18.78, samples=312 iops : min= 1, max= 26, avg= 7.38, stdev= 4.71, samples=312 write: IOPS=7, BW=30.5KiB/s (31.2kB/s)(5192KiB/170243msec); 0 zone resets slat (usec): min=53, max=14310, avg=312.46, stdev=1045.08 clat (msec): min=177, max=3130, avg=1439.14, stdev=547.80 lat (msec): min=177, max=3131, avg=1439.45, stdev=547.84 clat percentiles (msec): | 1.00th=[ 523], 5.00th=[ 676], 10.00th=[ 776], 20.00th=[ 919], | 30.00th=[ 1070], 40.00th=[ 1200], 50.00th=[ 1385], 60.00th=[ 1569], | 70.00th=[ 1737], 80.00th=[ 1921], 90.00th=[ 2198], 95.00th=[ 2433], | 99.00th=[ 2735], 99.50th=[ 2836], 99.90th=[ 3104], 99.95th=[ 3138], | 99.99th=[ 3138] bw ( KiB/s): min= 7, max= 96, per=25.28%, avg=30.84, stdev=17.54, samples=327 iops : min= 1, max= 24, avg= 7.20, stdev= 4.44, samples=327 lat (msec) : 50=0.04%, 100=0.12%, 250=1.48%, 500=13.71%, 750=18.79% lat (msec) : 1000=23.12%, 2000=34.26%, >=2000=8.48% cpu : usr=0.05%, sys=0.36%, ctx=4100, 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=145426: Mon Aug 3 13:38:28 2026 read: IOPS=7, BW=29.2KiB/s (29.9kB/s)(4976KiB/170628msec) slat (usec): min=2479, max=98407, avg=18160.51, stdev=12037.97 clat (msec): min=27, max=1492, avg=656.91, stdev=251.78 lat (msec): min=32, max=1498, avg=675.07, stdev=255.77 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 284], 10.00th=[ 321], 20.00th=[ 388], | 30.00th=[ 506], 40.00th=[ 592], 50.00th=[ 667], 60.00th=[ 743], | 70.00th=[ 810], 80.00th=[ 877], 90.00th=[ 969], 95.00th=[ 1053], | 99.00th=[ 1250], 99.50th=[ 1284], 99.90th=[ 1368], 99.95th=[ 1485], | 99.99th=[ 1485] bw ( KiB/s): min= 7, max= 103, per=25.99%, avg=30.41, stdev=19.26, samples=317 iops : min= 1, max= 25, avg= 7.10, stdev= 4.85, samples=317 write: IOPS=7, BW=30.9KiB/s (31.6kB/s)(5264KiB/170628msec); 0 zone resets slat (usec): min=52, max=9655, avg=239.11, stdev=642.91 clat (msec): min=264, max=2934, avg=1433.36, stdev=537.08 lat (msec): min=264, max=2934, avg=1433.60, stdev=537.13 clat percentiles (msec): | 1.00th=[ 451], 5.00th=[ 651], 10.00th=[ 768], 20.00th=[ 936], | 30.00th=[ 1083], 40.00th=[ 1234], 50.00th=[ 1401], 60.00th=[ 1552], | 70.00th=[ 1687], 80.00th=[ 1888], 90.00th=[ 2198], 95.00th=[ 2433], | 99.00th=[ 2735], 99.50th=[ 2802], 99.90th=[ 2937], 99.95th=[ 2937], | 99.99th=[ 2937] bw ( KiB/s): min= 7, max= 103, per=25.82%, avg=31.50, stdev=19.73, samples=325 iops : min= 1, max= 25, avg= 7.36, stdev= 4.96, samples=325 lat (msec) : 50=0.12%, 100=0.27%, 250=0.62%, 500=14.18%, 750=19.69% lat (msec) : 1000=21.99%, 2000=35.35%, >=2000=7.77% cpu : usr=0.05%, sys=0.39%, ctx=4149, 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=145427: Mon Aug 3 13:38:28 2026 read: IOPS=7, BW=29.2KiB/s (29.9kB/s)(4984KiB/170516msec) slat (usec): min=2677, max=76374, avg=18021.01, stdev=11509.82 clat (msec): min=26, max=1355, avg=656.34, stdev=255.30 lat (msec): min=33, max=1379, avg=674.36, stdev=259.26 clat percentiles (msec): | 1.00th=[ 234], 5.00th=[ 296], 10.00th=[ 334], 20.00th=[ 388], | 30.00th=[ 468], 40.00th=[ 575], 50.00th=[ 651], 60.00th=[ 735], | 70.00th=[ 810], 80.00th=[ 885], 90.00th=[ 995], 95.00th=[ 1083], | 99.00th=[ 1250], 99.50th=[ 1284], 99.90th=[ 1334], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 7, max= 127, per=26.37%, avg=30.86, stdev=19.80, samples=315 iops : min= 1, max= 31, avg= 7.21, stdev= 4.96, samples=315 write: IOPS=7, BW=30.8KiB/s (31.6kB/s)(5256KiB/170516msec); 0 zone resets slat (usec): min=54, max=45726, avg=326.09, stdev=1672.45 clat (msec): min=271, max=3105, avg=1433.66, stdev=548.92 lat (msec): min=272, max=3105, avg=1433.98, stdev=548.96 clat percentiles (msec): | 1.00th=[ 489], 5.00th=[ 667], 10.00th=[ 760], 20.00th=[ 927], | 30.00th=[ 1083], 40.00th=[ 1217], 50.00th=[ 1351], 60.00th=[ 1552], | 70.00th=[ 1703], 80.00th=[ 1921], 90.00th=[ 2198], 95.00th=[ 2433], | 99.00th=[ 2802], 99.50th=[ 2869], 99.90th=[ 3004], 99.95th=[ 3104], | 99.99th=[ 3104] bw ( KiB/s): min= 7, max= 88, per=25.57%, avg=31.20, stdev=17.42, samples=327 iops : min= 1, max= 22, avg= 7.30, stdev= 4.41, samples=327 lat (msec) : 50=0.04%, 100=0.12%, 250=0.51%, 500=15.78%, 750=18.91% lat (msec) : 1000=21.33%, 2000=34.73%, >=2000=8.59% cpu : usr=0.05%, sys=0.41%, ctx=4453, 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=145428: Mon Aug 3 13:38:28 2026 read: IOPS=7, BW=29.8KiB/s (30.5kB/s)(5060KiB/170066msec) slat (usec): min=2421, max=93123, avg=18244.67, stdev=11849.23 clat (msec): min=22, max=1351, avg=667.80, stdev=249.10 lat (msec): min=41, max=1373, avg=686.05, stdev=252.71 clat percentiles (msec): | 1.00th=[ 224], 5.00th=[ 300], 10.00th=[ 342], 20.00th=[ 405], | 30.00th=[ 514], 40.00th=[ 600], 50.00th=[ 676], 60.00th=[ 751], | 70.00th=[ 810], 80.00th=[ 877], 90.00th=[ 995], 95.00th=[ 1083], | 99.00th=[ 1250], 99.50th=[ 1284], 99.90th=[ 1334], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 7, max= 104, per=26.50%, avg=31.01, stdev=18.48, samples=318 iops : min= 1, max= 26, avg= 7.25, stdev= 4.62, samples=318 write: IOPS=7, BW=30.5KiB/s (31.2kB/s)(5180KiB/170066msec); 0 zone resets slat (usec): min=53, max=17047, avg=262.21, stdev=844.15 clat (msec): min=237, max=3210, avg=1427.90, stdev=533.36 lat (msec): min=238, max=3211, avg=1428.16, stdev=533.33 clat percentiles (msec): | 1.00th=[ 542], 5.00th=[ 667], 10.00th=[ 776], 20.00th=[ 936], | 30.00th=[ 1083], 40.00th=[ 1217], 50.00th=[ 1368], 60.00th=[ 1552], | 70.00th=[ 1703], 80.00th=[ 1888], 90.00th=[ 2123], 95.00th=[ 2433], | 99.00th=[ 2769], 99.50th=[ 2903], 99.90th=[ 3004], 99.95th=[ 3205], | 99.99th=[ 3205] bw ( KiB/s): min= 7, max= 120, per=25.20%, avg=30.74, stdev=18.49, samples=327 iops : min= 1, max= 30, avg= 7.18, stdev= 4.69, samples=327 lat (msec) : 50=0.08%, 100=0.20%, 250=0.55%, 500=13.75%, 750=19.38% lat (msec) : 1000=23.01%, 2000=35.86%, >=2000=7.19% cpu : usr=0.06%, sys=0.39%, ctx=4204, 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=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=118KiB/s (120kB/s), 29.2KiB/s-29.8KiB/s (29.9kB/s-30.5kB/s), io=19.6MiB (20.5MB), run=170066-170628msec WRITE: bw=122KiB/s (125kB/s), 30.5KiB/s-30.9KiB/s (31.2kB/s-31.6kB/s), io=20.4MiB (21.4MB), run=170066-170628msec 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=145457: Mon Aug 3 13:38:38 2026 read: IOPS=1, BW=56.1MiB/s (58.8MB/s)(40.0MiB/713msec) slat (nsec): min=49025k, max=49025k, avg=49025373.00, stdev= 0.00 clat (nsec): min=632951k, max=632951k, avg=632950679.00, stdev= 0.00 lat (nsec): min=681981k, max=681981k, avg=681980759.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 634], 5.00th=[ 634], 10.00th=[ 634], 20.00th=[ 634], | 30.00th=[ 634], 40.00th=[ 634], 50.00th=[ 634], 60.00th=[ 634], | 70.00th=[ 634], 80.00th=[ 634], 90.00th=[ 634], 95.00th=[ 634], | 99.00th=[ 634], 99.50th=[ 634], 99.90th=[ 634], 99.95th=[ 634], | 99.99th=[ 634] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.26%, ctx=4, 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=56.1MiB/s (58.8MB/s), 56.1MiB/s-56.1MiB/s (58.8MB/s-58.8MB/s), io=40.0MiB (41.9MB), run=713-713msec 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