== sanity test 398c: run fio to test AIO ================= 14:04:01 (1790791441) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.583626 s, 71.9 MB/s osc.lustre-OST0000-osc-ffff9d9ec6eab800.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=175600: Wed Sep 30 14:07:49 2026 write: IOPS=11, BW=47.1KiB/s (48.2kB/s)(10.0MiB/217570msec); 0 zone resets slat (usec): min=28, max=21497, avg=258.41, stdev=1015.13 clat (msec): min=442, max=3203, avg=1358.61, stdev=443.92 lat (msec): min=443, max=3203, avg=1358.87, stdev=443.96 clat percentiles (msec): | 1.00th=[ 510], 5.00th=[ 743], 10.00th=[ 860], 20.00th=[ 1003], | 30.00th=[ 1083], 40.00th=[ 1200], 50.00th=[ 1301], 60.00th=[ 1401], | 70.00th=[ 1502], 80.00th=[ 1720], 90.00th=[ 2005], 95.00th=[ 2198], | 99.00th=[ 2601], 99.50th=[ 2769], 99.90th=[ 3104], 99.95th=[ 3205], | 99.99th=[ 3205] bw ( KiB/s): min= 7, max= 127, per=25.29%, avg=47.54, stdev=27.25, samples=422 iops : min= 1, max= 31, avg=11.37, stdev= 6.82, samples=422 lat (msec) : 500=0.62%, 750=4.49%, 1000=14.80%, 2000=70.00%, >=2000=10.08% cpu : usr=0.03%, sys=0.17%, ctx=1558, 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=175601: Wed Sep 30 14:07:49 2026 write: IOPS=11, BW=47.1KiB/s (48.3kB/s)(10.0MiB/217203msec); 0 zone resets slat (usec): min=28, max=15946, avg=232.65, stdev=881.09 clat (msec): min=200, max=3057, avg=1356.67, stdev=446.56 lat (msec): min=201, max=3057, avg=1356.90, stdev=446.63 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 735], 10.00th=[ 877], 20.00th=[ 995], | 30.00th=[ 1099], 40.00th=[ 1200], 50.00th=[ 1301], 60.00th=[ 1385], | 70.00th=[ 1519], 80.00th=[ 1720], 90.00th=[ 2022], 95.00th=[ 2165], | 99.00th=[ 2534], 99.50th=[ 2802], 99.90th=[ 2937], 99.95th=[ 2937], | 99.99th=[ 3071] bw ( KiB/s): min= 7, max= 128, per=26.41%, avg=49.66, stdev=33.31, samples=404 iops : min= 1, max= 32, avg=11.90, stdev= 8.37, samples=404 lat (msec) : 250=0.16%, 500=1.56%, 750=3.36%, 1000=15.27%, 2000=69.02% lat (msec) : >=2000=10.62% cpu : usr=0.04%, sys=0.16%, ctx=1747, 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=175602: Wed Sep 30 14:07:49 2026 write: IOPS=11, BW=47.1KiB/s (48.2kB/s)(10.0MiB/217563msec); 0 zone resets slat (usec): min=29, max=15055, avg=234.79, stdev=839.77 clat (msec): min=358, max=3255, avg=1358.47, stdev=441.15 lat (msec): min=358, max=3255, avg=1358.71, stdev=441.19 clat percentiles (msec): | 1.00th=[ 493], 5.00th=[ 760], 10.00th=[ 860], 20.00th=[ 1003], | 30.00th=[ 1099], 40.00th=[ 1200], 50.00th=[ 1301], 60.00th=[ 1385], | 70.00th=[ 1502], 80.00th=[ 1737], 90.00th=[ 1989], 95.00th=[ 2165], | 99.00th=[ 2635], 99.50th=[ 2769], 99.90th=[ 3104], 99.95th=[ 3104], | 99.99th=[ 3272] bw ( KiB/s): min= 7, max= 255, per=26.16%, avg=49.19, stdev=28.37, samples=408 iops : min= 1, max= 63, avg=11.78, stdev= 7.10, samples=408 lat (msec) : 500=1.37%, 750=3.09%, 1000=15.31%, 2000=70.66%, >=2000=9.57% cpu : usr=0.03%, sys=0.17%, ctx=1596, 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=175603: Wed Sep 30 14:07:49 2026 write: IOPS=11, BW=47.1KiB/s (48.2kB/s)(10.0MiB/217493msec); 0 zone resets slat (usec): min=29, max=22811, avg=257.07, stdev=1068.24 clat (msec): min=353, max=3090, avg=1357.97, stdev=442.12 lat (msec): min=353, max=3090, avg=1358.23, stdev=442.16 clat percentiles (msec): | 1.00th=[ 485], 5.00th=[ 768], 10.00th=[ 869], 20.00th=[ 1003], | 30.00th=[ 1083], 40.00th=[ 1200], 50.00th=[ 1301], 60.00th=[ 1385], | 70.00th=[ 1502], 80.00th=[ 1720], 90.00th=[ 2005], 95.00th=[ 2165], | 99.00th=[ 2534], 99.50th=[ 2802], 99.90th=[ 3104], 99.95th=[ 3104], | 99.99th=[ 3104] bw ( KiB/s): min= 7, max= 255, per=25.72%, avg=48.36, stdev=27.44, samples=415 iops : min= 1, max= 63, avg=11.59, stdev= 6.88, samples=415 lat (msec) : 500=1.29%, 750=3.40%, 1000=15.23%, 2000=70.08%, >=2000=10.00% cpu : usr=0.04%, sys=0.19%, ctx=1658, 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=188KiB/s (193kB/s), 47.1KiB/s-47.1KiB/s (48.2kB/s-48.3kB/s), io=40.0MiB (41.9MB), run=217203-217570msec 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=175644: Wed Sep 30 14:10:16 2026 read: IOPS=9, BW=36.7KiB/s (37.6kB/s)(5048KiB/137582msec) slat (usec): min=35, max=92171, avg=17226.73, stdev=10332.09 clat (msec): min=21, max=1253, avg=537.05, stdev=163.73 lat (msec): min=33, max=1280, avg=554.29, stdev=166.29 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 326], 10.00th=[ 363], 20.00th=[ 418], | 30.00th=[ 447], 40.00th=[ 477], 50.00th=[ 510], 60.00th=[ 542], | 70.00th=[ 584], 80.00th=[ 659], 90.00th=[ 768], 95.00th=[ 844], | 99.00th=[ 1011], 99.50th=[ 1083], 99.90th=[ 1183], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 7, max= 88, per=25.09%, avg=36.38, stdev=18.97, samples=271 iops : min= 1, max= 22, avg= 8.58, stdev= 4.78, samples=271 write: IOPS=9, BW=37.7KiB/s (38.6kB/s)(5192KiB/137582msec); 0 zone resets slat (usec): min=30, max=10186, avg=259.13, stdev=666.65 clat (msec): min=179, max=2416, avg=1155.73, stdev=372.69 lat (msec): min=179, max=2416, avg=1155.99, stdev=372.71 clat percentiles (msec): | 1.00th=[ 550], 5.00th=[ 651], 10.00th=[ 726], 20.00th=[ 827], | 30.00th=[ 919], 40.00th=[ 1003], 50.00th=[ 1099], 60.00th=[ 1183], | 70.00th=[ 1334], 80.00th=[ 1485], 90.00th=[ 1670], 95.00th=[ 1838], | 99.00th=[ 2198], 99.50th=[ 2366], 99.90th=[ 2400], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 7, max= 88, per=24.90%, avg=37.60, stdev=18.26, samples=269 iops : min= 1, max= 22, avg= 8.89, stdev= 4.58, samples=269 lat (msec) : 50=0.12%, 100=0.12%, 250=0.98%, 500=21.99%, 750=26.48% lat (msec) : 1000=19.14%, 2000=30.08%, >=2000=1.09% cpu : usr=0.08%, sys=0.52%, ctx=4677, 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=175645: Wed Sep 30 14:10:16 2026 read: IOPS=9, BW=36.1KiB/s (36.9kB/s)(4976KiB/137900msec) slat (usec): min=3473, max=90028, avg=17172.55, stdev=10514.09 clat (msec): min=27, max=1327, avg=541.51, stdev=170.80 lat (msec): min=38, max=1339, avg=558.69, stdev=172.99 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 326], 10.00th=[ 359], 20.00th=[ 405], | 30.00th=[ 451], 40.00th=[ 481], 50.00th=[ 514], 60.00th=[ 550], | 70.00th=[ 592], 80.00th=[ 667], 90.00th=[ 776], 95.00th=[ 869], | 99.00th=[ 1036], 99.50th=[ 1167], 99.90th=[ 1301], 99.95th=[ 1334], | 99.99th=[ 1334] bw ( KiB/s): min= 7, max= 104, per=24.92%, avg=36.13, stdev=18.66, samples=268 iops : min= 1, max= 26, avg= 8.52, stdev= 4.71, samples=268 write: IOPS=9, BW=38.2KiB/s (39.1kB/s)(5264KiB/137900msec); 0 zone resets slat (usec): min=34, max=17569, avg=284.88, stdev=935.67 clat (msec): min=168, max=2316, avg=1145.81, stdev=368.07 lat (msec): min=171, max=2316, avg=1146.10, stdev=368.10 clat percentiles (msec): | 1.00th=[ 493], 5.00th=[ 634], 10.00th=[ 718], 20.00th=[ 827], | 30.00th=[ 919], 40.00th=[ 1003], 50.00th=[ 1083], 60.00th=[ 1183], | 70.00th=[ 1334], 80.00th=[ 1469], 90.00th=[ 1636], 95.00th=[ 1804], | 99.00th=[ 2198], 99.50th=[ 2232], 99.90th=[ 2299], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 7, max= 120, per=25.16%, avg=37.99, stdev=19.30, samples=271 iops : min= 1, max= 30, avg= 8.99, stdev= 4.85, samples=271 lat (msec) : 50=0.12%, 100=0.20%, 250=0.39%, 500=22.23%, 750=26.29% lat (msec) : 1000=19.45%, 2000=29.96%, >=2000=1.37% cpu : usr=0.10%, sys=0.52%, ctx=4331, 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=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=175646: Wed Sep 30 14:10:16 2026 read: IOPS=9, BW=36.1KiB/s (37.0kB/s)(4984KiB/137900msec) slat (usec): min=3011, max=75264, avg=17255.76, stdev=10632.44 clat (msec): min=16, max=1286, avg=533.19, stdev=173.79 lat (msec): min=28, max=1307, avg=550.46, stdev=175.81 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 313], 10.00th=[ 359], 20.00th=[ 405], | 30.00th=[ 439], 40.00th=[ 472], 50.00th=[ 506], 60.00th=[ 535], | 70.00th=[ 584], 80.00th=[ 651], 90.00th=[ 785], 95.00th=[ 877], | 99.00th=[ 1062], 99.50th=[ 1133], 99.90th=[ 1167], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 7, max= 95, per=25.36%, avg=36.78, stdev=19.71, samples=265 iops : min= 1, max= 23, avg= 8.67, stdev= 4.98, samples=265 write: IOPS=9, BW=38.1KiB/s (39.0kB/s)(5256KiB/137900msec); 0 zone resets slat (usec): min=32, max=18092, avg=307.94, stdev=1162.01 clat (msec): min=189, max=2395, avg=1154.26, stdev=369.92 lat (msec): min=192, max=2395, avg=1154.57, stdev=369.98 clat percentiles (msec): | 1.00th=[ 542], 5.00th=[ 642], 10.00th=[ 718], 20.00th=[ 827], | 30.00th=[ 927], 40.00th=[ 1011], 50.00th=[ 1099], 60.00th=[ 1200], | 70.00th=[ 1351], 80.00th=[ 1469], 90.00th=[ 1636], 95.00th=[ 1838], | 99.00th=[ 2198], 99.50th=[ 2232], 99.90th=[ 2366], 99.95th=[ 2400], | 99.99th=[ 2400] bw ( KiB/s): min= 7, max= 95, per=25.28%, avg=38.18, stdev=18.77, samples=268 iops : min= 1, max= 23, avg= 9.03, stdev= 4.73, samples=268 lat (msec) : 20=0.04%, 50=0.16%, 100=0.20%, 250=0.90%, 500=22.62% lat (msec) : 750=25.39%, 1000=18.67%, 2000=30.66%, >=2000=1.37% cpu : usr=0.10%, sys=0.55%, ctx=4838, 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=175647: Wed Sep 30 14:10:16 2026 read: IOPS=9, BW=36.9KiB/s (37.8kB/s)(5060KiB/137160msec) slat (usec): min=2885, max=76721, avg=17119.83, stdev=9970.05 clat (msec): min=17, max=1419, avg=538.24, stdev=175.82 lat (msec): min=23, max=1439, avg=555.37, stdev=177.69 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 321], 10.00th=[ 355], 20.00th=[ 401], | 30.00th=[ 439], 40.00th=[ 472], 50.00th=[ 506], 60.00th=[ 542], | 70.00th=[ 592], 80.00th=[ 667], 90.00th=[ 793], 95.00th=[ 869], | 99.00th=[ 1070], 99.50th=[ 1116], 99.90th=[ 1284], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 7, max= 88, per=26.47%, avg=38.38, stdev=18.27, samples=258 iops : min= 1, max= 22, avg= 9.07, stdev= 4.59, samples=258 write: IOPS=9, BW=37.8KiB/s (38.7kB/s)(5180KiB/137160msec); 0 zone resets slat (usec): min=32, max=18878, avg=342.21, stdev=1219.37 clat (msec): min=376, max=2433, avg=1148.47, stdev=372.06 lat (msec): min=376, max=2433, avg=1148.82, stdev=372.05 clat percentiles (msec): | 1.00th=[ 558], 5.00th=[ 651], 10.00th=[ 709], 20.00th=[ 827], | 30.00th=[ 919], 40.00th=[ 1003], 50.00th=[ 1083], 60.00th=[ 1167], | 70.00th=[ 1318], 80.00th=[ 1485], 90.00th=[ 1653], 95.00th=[ 1838], | 99.00th=[ 2198], 99.50th=[ 2299], 99.90th=[ 2433], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 7, max= 96, per=25.20%, avg=38.05, stdev=18.23, samples=265 iops : min= 1, max= 24, avg= 9.00, stdev= 4.59, samples=265 lat (msec) : 20=0.12%, 50=0.08%, 100=0.16%, 250=0.62%, 500=22.93% lat (msec) : 750=25.82%, 1000=19.10%, 2000=29.88%, >=2000=1.29% cpu : usr=0.08%, sys=0.53%, ctx=4991, 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=146KiB/s (149kB/s), 36.1KiB/s-36.9KiB/s (36.9kB/s-37.8kB/s), io=19.6MiB (20.5MB), run=137160-137900msec WRITE: bw=152KiB/s (155kB/s), 37.7KiB/s-38.2KiB/s (38.6kB/s-39.1kB/s), io=20.4MiB (21.4MB), run=137160-137900msec 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=175673: Wed Sep 30 14:10:25 2026 read: IOPS=1, BW=66.9MiB/s (70.1MB/s)(40.0MiB/598msec) slat (nsec): min=32431k, max=32431k, avg=32431185.00, stdev= 0.00 clat (nsec): min=551841k, max=551841k, avg=551841010.00, stdev= 0.00 lat (nsec): min=584279k, max=584279k, avg=584279056.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 550], 5.00th=[ 550], 10.00th=[ 550], 20.00th=[ 550], | 30.00th=[ 550], 40.00th=[ 550], 50.00th=[ 550], 60.00th=[ 550], | 70.00th=[ 550], 80.00th=[ 550], 90.00th=[ 550], 95.00th=[ 550], | 99.00th=[ 550], 99.50th=[ 550], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.35%, ctx=7, 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=66.9MiB/s (70.1MB/s), 66.9MiB/s-66.9MiB/s (70.1MB/s-70.1MB/s), io=40.0MiB (41.9MB), run=598-598msec 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