== sanity test 398c: run fio to test AIO ================= 11:49:35 (1788796175) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.339171 s, 124 MB/s osc.lustre-OST0000-osc-ffff8bf882ca9000.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=144838: Mon Sep 7 11:52:27 2026 write: IOPS=16, BW=64.2KiB/s (65.7kB/s)(10.0MiB/159575msec); 0 zone resets slat (usec): min=22, max=33797, avg=222.71, stdev=1094.08 clat (msec): min=81, max=2833, avg=996.69, stdev=363.95 lat (msec): min=81, max=2833, avg=996.92, stdev=363.95 clat percentiles (msec): | 1.00th=[ 268], 5.00th=[ 514], 10.00th=[ 617], 20.00th=[ 726], | 30.00th=[ 802], 40.00th=[ 877], 50.00th=[ 953], 60.00th=[ 1045], | 70.00th=[ 1116], 80.00th=[ 1217], 90.00th=[ 1435], 95.00th=[ 1687], | 99.00th=[ 2299], 99.50th=[ 2366], 99.90th=[ 2735], 99.95th=[ 2802], | 99.99th=[ 2836] bw ( KiB/s): min= 7, max= 239, per=24.88%, avg=63.70, stdev=33.84, samples=316 iops : min= 1, max= 59, avg=15.44, stdev= 8.52, samples=316 lat (msec) : 100=0.08%, 250=0.47%, 500=4.10%, 750=19.38%, 1000=31.33% lat (msec) : 2000=42.73%, >=2000=1.91% cpu : usr=0.04%, sys=0.22%, ctx=1919, 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 rand-write: (groupid=0, jobs=1): err= 0: pid=144839: Mon Sep 7 11:52:27 2026 write: IOPS=16, BW=64.0KiB/s (65.6kB/s)(10.0MiB/159875msec); 0 zone resets slat (usec): min=22, max=18256, avg=179.87, stdev=770.51 clat (msec): min=256, max=2849, avg=997.76, stdev=356.82 lat (msec): min=256, max=2850, avg=997.95, stdev=356.81 clat percentiles (msec): | 1.00th=[ 268], 5.00th=[ 527], 10.00th=[ 634], 20.00th=[ 735], | 30.00th=[ 810], 40.00th=[ 894], 50.00th=[ 953], 60.00th=[ 1020], | 70.00th=[ 1099], 80.00th=[ 1217], 90.00th=[ 1452], 95.00th=[ 1653], | 99.00th=[ 2232], 99.50th=[ 2467], 99.90th=[ 2735], 99.95th=[ 2769], | 99.99th=[ 2836] bw ( KiB/s): min= 7, max= 256, per=26.14%, avg=66.91, stdev=38.37, samples=301 iops : min= 1, max= 64, avg=16.24, stdev= 9.64, samples=301 lat (msec) : 500=4.38%, 750=18.12%, 1000=34.26%, 2000=41.64%, >=2000=1.60% cpu : usr=0.04%, sys=0.20%, ctx=1715, 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=144840: Mon Sep 7 11:52:27 2026 write: IOPS=16, BW=64.1KiB/s (65.6kB/s)(10.0MiB/159786msec); 0 zone resets slat (usec): min=21, max=19806, avg=188.77, stdev=890.50 clat (msec): min=126, max=2883, avg=997.23, stdev=364.86 lat (msec): min=129, max=2884, avg=997.42, stdev=364.87 clat percentiles (msec): | 1.00th=[ 253], 5.00th=[ 518], 10.00th=[ 617], 20.00th=[ 726], | 30.00th=[ 793], 40.00th=[ 885], 50.00th=[ 953], 60.00th=[ 1036], | 70.00th=[ 1116], 80.00th=[ 1217], 90.00th=[ 1452], 95.00th=[ 1687], | 99.00th=[ 2056], 99.50th=[ 2735], 99.90th=[ 2836], 99.95th=[ 2869], | 99.99th=[ 2869] bw ( KiB/s): min= 7, max= 256, per=25.54%, avg=65.39, stdev=36.33, samples=308 iops : min= 1, max= 64, avg=15.86, stdev= 9.13, samples=308 lat (msec) : 250=0.62%, 500=3.79%, 750=19.26%, 1000=32.30%, 2000=42.66% lat (msec) : >=2000=1.37% cpu : usr=0.04%, sys=0.20%, ctx=1838, 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=144841: Mon Sep 7 11:52:27 2026 write: IOPS=16, BW=64.1KiB/s (65.6kB/s)(10.0MiB/159871msec); 0 zone resets slat (usec): min=22, max=23342, avg=198.05, stdev=886.42 clat (msec): min=228, max=2882, avg=997.76, stdev=363.99 lat (msec): min=228, max=2882, avg=997.96, stdev=363.99 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 542], 10.00th=[ 634], 20.00th=[ 726], | 30.00th=[ 802], 40.00th=[ 877], 50.00th=[ 953], 60.00th=[ 1036], | 70.00th=[ 1116], 80.00th=[ 1217], 90.00th=[ 1418], 95.00th=[ 1687], | 99.00th=[ 2165], 99.50th=[ 2534], 99.90th=[ 2869], 99.95th=[ 2869], | 99.99th=[ 2869] bw ( KiB/s): min= 7, max= 256, per=25.05%, avg=64.13, stdev=33.49, samples=314 iops : min= 1, max= 64, avg=15.55, stdev= 8.42, samples=314 lat (msec) : 250=0.31%, 500=3.59%, 750=19.57%, 1000=31.68%, 2000=43.24% lat (msec) : >=2000=1.60% cpu : usr=0.04%, sys=0.21%, ctx=1813, 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=256KiB/s (262kB/s), 64.0KiB/s-64.2KiB/s (65.6kB/s-65.7kB/s), io=40.0MiB (41.9MB), run=159575-159875msec 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=144874: Mon Sep 7 11:54:33 2026 read: IOPS=10, BW=42.8KiB/s (43.8kB/s)(5048KiB/117997msec) slat (usec): min=2749, max=83778, avg=14957.12, stdev=9235.79 clat (msec): min=29, max=1215, avg=455.07, stdev=169.28 lat (msec): min=40, max=1259, avg=470.03, stdev=172.22 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 266], 10.00th=[ 292], 20.00th=[ 326], | 30.00th=[ 355], 40.00th=[ 384], 50.00th=[ 418], 60.00th=[ 443], | 70.00th=[ 485], 80.00th=[ 567], 90.00th=[ 701], 95.00th=[ 793], | 99.00th=[ 1045], 99.50th=[ 1083], 99.90th=[ 1133], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 7, max= 103, per=25.44%, avg=42.99, stdev=21.11, samples=230 iops : min= 1, max= 25, avg=10.27, stdev= 5.34, samples=230 write: IOPS=11, BW=44.0KiB/s (45.1kB/s)(5192KiB/117997msec); 0 zone resets slat (usec): min=22, max=18763, avg=263.88, stdev=1147.78 clat (msec): min=182, max=2682, avg=995.07, stdev=368.80 lat (msec): min=182, max=2682, avg=995.34, stdev=368.79 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 510], 10.00th=[ 600], 20.00th=[ 726], | 30.00th=[ 802], 40.00th=[ 869], 50.00th=[ 936], 60.00th=[ 1011], | 70.00th=[ 1116], 80.00th=[ 1217], 90.00th=[ 1452], 95.00th=[ 1737], | 99.00th=[ 2265], 99.50th=[ 2366], 99.90th=[ 2534], 99.95th=[ 2668], | 99.99th=[ 2668] bw ( KiB/s): min= 7, max= 135, per=24.94%, avg=43.90, stdev=22.35, samples=231 iops : min= 1, max= 33, avg=10.50, stdev= 5.60, samples=231 lat (msec) : 50=0.04%, 100=0.08%, 250=1.68%, 500=36.13%, 750=19.92% lat (msec) : 1000=20.47%, 2000=20.55%, >=2000=1.13% cpu : usr=0.10%, sys=0.58%, ctx=4506, 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=144875: Mon Sep 7 11:54:33 2026 read: IOPS=10, BW=42.1KiB/s (43.1kB/s)(4976KiB/118152msec) slat (usec): min=2972, max=90926, avg=15175.35, stdev=9642.62 clat (msec): min=17, max=1164, avg=451.08, stdev=173.57 lat (msec): min=26, max=1204, avg=466.27, stdev=176.61 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 266], 10.00th=[ 292], 20.00th=[ 330], | 30.00th=[ 355], 40.00th=[ 384], 50.00th=[ 409], 60.00th=[ 435], | 70.00th=[ 481], 80.00th=[ 550], 90.00th=[ 676], 95.00th=[ 827], | 99.00th=[ 1062], 99.50th=[ 1150], 99.90th=[ 1150], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 7, max= 119, per=24.86%, avg=42.01, stdev=21.21, samples=230 iops : min= 1, max= 29, avg=10.03, stdev= 5.34, samples=230 write: IOPS=11, BW=44.6KiB/s (45.6kB/s)(5264KiB/118152msec); 0 zone resets slat (usec): min=25, max=12497, avg=236.53, stdev=788.13 clat (msec): min=78, max=2783, avg=993.87, stdev=375.75 lat (msec): min=78, max=2783, avg=994.11, stdev=375.73 clat percentiles (msec): | 1.00th=[ 239], 5.00th=[ 510], 10.00th=[ 592], 20.00th=[ 718], | 30.00th=[ 785], 40.00th=[ 860], 50.00th=[ 936], 60.00th=[ 1020], | 70.00th=[ 1099], 80.00th=[ 1234], 90.00th=[ 1469], 95.00th=[ 1703], | 99.00th=[ 2232], 99.50th=[ 2500], 99.90th=[ 2769], 99.95th=[ 2769], | 99.99th=[ 2769] bw ( KiB/s): min= 7, max= 127, per=25.18%, avg=44.32, stdev=21.74, samples=231 iops : min= 1, max= 31, avg=10.61, stdev= 5.46, samples=231 lat (msec) : 20=0.04%, 50=0.16%, 100=0.16%, 250=1.72%, 500=36.02% lat (msec) : 750=19.69%, 1000=19.84%, 2000=21.33%, >=2000=1.05% cpu : usr=0.11%, sys=0.55%, ctx=4555, 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=144876: Mon Sep 7 11:54:33 2026 read: IOPS=10, BW=42.2KiB/s (43.2kB/s)(4984KiB/118105msec) slat (usec): min=2611, max=78090, avg=14840.05, stdev=9517.58 clat (msec): min=30, max=1131, avg=448.19, stdev=162.52 lat (msec): min=49, max=1205, avg=463.05, stdev=164.92 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 257], 10.00th=[ 284], 20.00th=[ 330], | 30.00th=[ 355], 40.00th=[ 384], 50.00th=[ 414], 60.00th=[ 443], | 70.00th=[ 485], 80.00th=[ 558], 90.00th=[ 676], 95.00th=[ 776], | 99.00th=[ 986], 99.50th=[ 1062], 99.90th=[ 1133], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 7, max= 110, per=25.51%, avg=43.11, stdev=22.65, samples=227 iops : min= 1, max= 27, avg=10.30, stdev= 5.67, samples=227 write: IOPS=11, BW=44.5KiB/s (45.6kB/s)(5256KiB/118105msec); 0 zone resets slat (usec): min=27, max=24028, avg=285.60, stdev=1143.98 clat (msec): min=186, max=2761, avg=996.46, stdev=374.44 lat (msec): min=186, max=2761, avg=996.74, stdev=374.43 clat percentiles (msec): | 1.00th=[ 300], 5.00th=[ 510], 10.00th=[ 600], 20.00th=[ 709], | 30.00th=[ 785], 40.00th=[ 860], 50.00th=[ 936], 60.00th=[ 1020], | 70.00th=[ 1116], 80.00th=[ 1234], 90.00th=[ 1469], 95.00th=[ 1703], | 99.00th=[ 2265], 99.50th=[ 2500], 99.90th=[ 2601], 99.95th=[ 2769], | 99.99th=[ 2769] bw ( KiB/s): min= 7, max= 111, per=25.19%, avg=44.34, stdev=21.56, samples=231 iops : min= 1, max= 27, avg=10.61, stdev= 5.41, samples=231 lat (msec) : 50=0.08%, 100=0.20%, 250=1.84%, 500=35.82%, 750=20.59% lat (msec) : 1000=19.26%, 2000=21.09%, >=2000=1.13% cpu : usr=0.10%, sys=0.59%, ctx=4600, 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=144877: Mon Sep 7 11:54:33 2026 read: IOPS=10, BW=42.9KiB/s (43.9kB/s)(5060KiB/117915msec) slat (usec): min=46, max=448224, avg=15466.11, stdev=18081.64 clat (msec): min=21, max=1254, avg=455.91, stdev=178.14 lat (msec): min=26, max=1296, avg=471.38, stdev=181.18 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 259], 10.00th=[ 288], 20.00th=[ 326], | 30.00th=[ 355], 40.00th=[ 388], 50.00th=[ 409], 60.00th=[ 443], | 70.00th=[ 502], 80.00th=[ 567], 90.00th=[ 693], 95.00th=[ 827], | 99.00th=[ 1062], 99.50th=[ 1133], 99.90th=[ 1234], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 7, max= 103, per=25.96%, avg=43.88, stdev=21.49, samples=226 iops : min= 1, max= 25, avg=10.50, stdev= 5.41, samples=226 write: IOPS=10, BW=43.9KiB/s (44.0kB/s)(5180KiB/117915msec); 0 zone resets slat (usec): min=28, max=23798, avg=274.01, stdev=1227.51 clat (msec): min=114, max=2800, avg=995.20, stdev=378.14 lat (msec): min=114, max=2800, avg=995.48, stdev=378.15 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 514], 10.00th=[ 600], 20.00th=[ 709], | 30.00th=[ 802], 40.00th=[ 869], 50.00th=[ 927], 60.00th=[ 1011], | 70.00th=[ 1116], 80.00th=[ 1250], 90.00th=[ 1452], 95.00th=[ 1737], | 99.00th=[ 2265], 99.50th=[ 2333], 99.90th=[ 2769], 99.95th=[ 2802], | 99.99th=[ 2802] bw ( KiB/s): min= 7, max= 136, per=24.93%, avg=43.88, stdev=22.13, samples=230 iops : min= 1, max= 34, avg=10.50, stdev= 5.57, samples=230 lat (msec) : 50=0.27%, 100=0.12%, 250=1.91%, 500=34.10%, 750=21.72% lat (msec) : 1000=20.20%, 2000=20.62%, >=2000=1.05% cpu : usr=0.08%, sys=0.61%, ctx=4429, 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=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=170KiB/s (174kB/s), 42.1KiB/s-42.9KiB/s (43.1kB/s-43.9kB/s), io=19.6MiB (20.5MB), run=117915-118152msec WRITE: bw=177KiB/s (181kB/s), 43.9KiB/s-44.6KiB/s (44.0kB/s-45.6kB/s), io=20.4MiB (21.4MB), run=117915-118152msec 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=144899: Mon Sep 7 11:54:43 2026 read: IOPS=1, BW=69.4MiB/s (72.8MB/s)(40.0MiB/576msec) slat (nsec): min=52658k, max=52658k, avg=52658202.00, stdev= 0.00 clat (nsec): min=509854k, max=509854k, avg=509853983.00, stdev= 0.00 lat (nsec): min=562545k, max=562545k, avg=562545357.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 510], 5.00th=[ 510], 10.00th=[ 510], 20.00th=[ 510], | 30.00th=[ 510], 40.00th=[ 510], 50.00th=[ 510], 60.00th=[ 510], | 70.00th=[ 510], 80.00th=[ 510], 90.00th=[ 510], 95.00th=[ 510], | 99.00th=[ 510], 99.50th=[ 510], 99.90th=[ 510], 99.95th=[ 510], | 99.99th=[ 510] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.43%, ctx=42, 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=69.4MiB/s (72.8MB/s), 69.4MiB/s-69.4MiB/s (72.8MB/s-72.8MB/s), io=40.0MiB (41.9MB), run=576-576msec 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