== sanity test 398c: run fio to test AIO ================= 15:46:14 (1780343174) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.432012 s, 97.1 MB/s osc.lustre-OST0000-osc-ffff9980110f9000.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=146721: Mon Jun 1 15:48:58 2026 write: IOPS=16, BW=66.7KiB/s (68.3kB/s)(10.0MiB/153540msec); 0 zone resets slat (usec): min=37, max=15671, avg=365.86, stdev=966.85 clat (msec): min=322, max=1632, avg=958.27, stdev=223.28 lat (msec): min=322, max=1632, avg=958.64, stdev=223.27 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 600], 10.00th=[ 676], 20.00th=[ 776], | 30.00th=[ 852], 40.00th=[ 911], 50.00th=[ 961], 60.00th=[ 1011], | 70.00th=[ 1070], 80.00th=[ 1133], 90.00th=[ 1234], 95.00th=[ 1318], | 99.00th=[ 1519], 99.50th=[ 1519], 99.90th=[ 1636], 99.95th=[ 1636], | 99.99th=[ 1636] bw ( KiB/s): min= 7, max= 128, per=25.12%, avg=66.81, stdev=31.17, samples=301 iops : min= 1, max= 32, avg=16.16, stdev= 7.83, samples=301 lat (msec) : 500=2.58%, 750=14.57%, 1000=40.86%, 2000=41.99% cpu : usr=0.05%, sys=0.33%, ctx=2214, 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=146722: Mon Jun 1 15:48:58 2026 write: IOPS=16, BW=66.7KiB/s (68.3kB/s)(10.0MiB/153502msec); 0 zone resets slat (usec): min=49, max=15053, avg=372.20, stdev=1030.60 clat (msec): min=242, max=1608, avg=958.01, stdev=227.52 lat (msec): min=242, max=1608, avg=958.38, stdev=227.56 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 592], 10.00th=[ 676], 20.00th=[ 768], | 30.00th=[ 844], 40.00th=[ 902], 50.00th=[ 969], 60.00th=[ 1020], | 70.00th=[ 1070], 80.00th=[ 1150], 90.00th=[ 1250], 95.00th=[ 1334], | 99.00th=[ 1469], 99.50th=[ 1536], 99.90th=[ 1603], 99.95th=[ 1603], | 99.99th=[ 1603] bw ( KiB/s): min= 7, max= 136, per=24.86%, avg=66.13, stdev=27.77, samples=304 iops : min= 1, max= 34, avg=15.98, stdev= 6.96, samples=304 lat (msec) : 250=0.04%, 500=2.62%, 750=15.27%, 1000=38.79%, 2000=43.28% cpu : usr=0.05%, sys=0.34%, ctx=2280, 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=146723: Mon Jun 1 15:48:58 2026 write: IOPS=16, BW=66.7KiB/s (68.3kB/s)(10.0MiB/153499msec); 0 zone resets slat (usec): min=37, max=17909, avg=374.94, stdev=993.27 clat (msec): min=328, max=1877, avg=957.81, stdev=230.60 lat (msec): min=328, max=1878, avg=958.18, stdev=230.64 clat percentiles (msec): | 1.00th=[ 347], 5.00th=[ 600], 10.00th=[ 659], 20.00th=[ 768], | 30.00th=[ 852], 40.00th=[ 911], 50.00th=[ 969], 60.00th=[ 1028], | 70.00th=[ 1083], 80.00th=[ 1133], 90.00th=[ 1234], 95.00th=[ 1318], | 99.00th=[ 1519], 99.50th=[ 1552], 99.90th=[ 1670], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 8, max= 224, per=24.95%, avg=66.36, stdev=27.98, samples=303 iops : min= 2, max= 56, avg=16.04, stdev= 7.04, samples=303 lat (msec) : 500=2.81%, 750=15.08%, 1000=38.52%, 2000=43.59% cpu : usr=0.05%, sys=0.33%, ctx=2495, 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=146724: Mon Jun 1 15:48:58 2026 write: IOPS=16, BW=66.8KiB/s (68.4kB/s)(10.0MiB/153333msec); 0 zone resets slat (usec): min=51, max=21133, avg=365.66, stdev=1086.56 clat (msec): min=129, max=1773, avg=957.52, stdev=231.49 lat (msec): min=130, max=1774, avg=957.88, stdev=231.54 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 592], 10.00th=[ 676], 20.00th=[ 768], | 30.00th=[ 852], 40.00th=[ 911], 50.00th=[ 969], 60.00th=[ 1020], | 70.00th=[ 1083], 80.00th=[ 1133], 90.00th=[ 1250], 95.00th=[ 1334], | 99.00th=[ 1502], 99.50th=[ 1586], 99.90th=[ 1653], 99.95th=[ 1720], | 99.99th=[ 1770] bw ( KiB/s): min= 7, max= 166, per=25.03%, avg=66.57, stdev=29.66, samples=302 iops : min= 1, max= 41, avg=16.09, stdev= 7.43, samples=302 lat (msec) : 250=0.23%, 500=2.66%, 750=15.00%, 1000=38.20%, 2000=43.91% cpu : usr=0.05%, sys=0.32%, ctx=2272, 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=267KiB/s (273kB/s), 66.7KiB/s-66.8KiB/s (68.3kB/s-68.4kB/s), io=40.0MiB (41.9MB), run=153333-153540msec 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=146755: Mon Jun 1 15:50:48 2026 read: IOPS=12, BW=49.5KiB/s (50.7kB/s)(5048KiB/102011msec) slat (usec): min=55, max=57021, avg=13089.99, stdev=6530.14 clat (msec): min=10, max=1347, avg=393.67, stdev=104.35 lat (msec): min=17, max=1368, avg=406.77, stdev=105.16 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 264], 10.00th=[ 292], 20.00th=[ 317], | 30.00th=[ 347], 40.00th=[ 368], 50.00th=[ 393], 60.00th=[ 409], | 70.00th=[ 430], 80.00th=[ 464], 90.00th=[ 506], 95.00th=[ 550], | 99.00th=[ 617], 99.50th=[ 659], 99.90th=[ 1267], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 8, max= 127, per=25.27%, avg=49.28, stdev=21.34, samples=201 iops : min= 2, max= 31, avg=11.83, stdev= 5.33, samples=201 write: IOPS=12, BW=50.9KiB/s (52.1kB/s)(5192KiB/102011msec); 0 zone resets slat (usec): min=46, max=9570, avg=440.42, stdev=923.53 clat (msec): min=121, max=2162, avg=860.09, stdev=236.35 lat (msec): min=121, max=2162, avg=860.54, stdev=236.30 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 514], 10.00th=[ 584], 20.00th=[ 667], | 30.00th=[ 735], 40.00th=[ 785], 50.00th=[ 844], 60.00th=[ 911], | 70.00th=[ 969], 80.00th=[ 1045], 90.00th=[ 1150], 95.00th=[ 1284], | 99.00th=[ 1401], 99.50th=[ 1653], 99.90th=[ 2165], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 7, max= 103, per=24.89%, avg=50.52, stdev=17.95, samples=201 iops : min= 1, max= 25, avg=12.14, stdev= 4.49, samples=201 lat (msec) : 20=0.04%, 50=0.16%, 100=0.16%, 250=1.76%, 500=43.67% lat (msec) : 750=19.88%, 1000=21.13%, 2000=13.09%, >=2000=0.12% cpu : usr=0.09%, sys=0.75%, ctx=4743, 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=146756: Mon Jun 1 15:50:48 2026 read: IOPS=12, BW=48.4KiB/s (49.6kB/s)(4976KiB/102710msec) slat (usec): min=2784, max=48871, avg=13355.61, stdev=6604.70 clat (msec): min=21, max=685, avg=390.98, stdev=81.29 lat (msec): min=36, max=698, avg=404.35, stdev=82.19 clat percentiles (msec): | 1.00th=[ 226], 5.00th=[ 271], 10.00th=[ 296], 20.00th=[ 326], | 30.00th=[ 347], 40.00th=[ 368], 50.00th=[ 388], 60.00th=[ 409], | 70.00th=[ 426], 80.00th=[ 456], 90.00th=[ 502], 95.00th=[ 527], | 99.00th=[ 600], 99.50th=[ 617], 99.90th=[ 651], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 7, max= 144, per=24.45%, avg=47.68, stdev=21.95, samples=204 iops : min= 1, max= 36, avg=11.43, stdev= 5.55, samples=204 write: IOPS=12, BW=51.3KiB/s (52.5kB/s)(5264KiB/102710msec); 0 zone resets slat (usec): min=56, max=30848, avg=451.37, stdev=1264.31 clat (msec): min=181, max=1518, avg=863.74, stdev=227.67 lat (msec): min=181, max=1518, avg=864.19, stdev=227.71 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 514], 10.00th=[ 584], 20.00th=[ 667], | 30.00th=[ 735], 40.00th=[ 802], 50.00th=[ 852], 60.00th=[ 911], | 70.00th=[ 969], 80.00th=[ 1045], 90.00th=[ 1167], 95.00th=[ 1284], | 99.00th=[ 1452], 99.50th=[ 1469], 99.90th=[ 1485], 99.95th=[ 1519], | 99.99th=[ 1519] bw ( KiB/s): min= 7, max= 112, per=24.97%, avg=50.68, stdev=20.23, samples=204 iops : min= 1, max= 28, avg=12.18, stdev= 5.03, samples=204 lat (msec) : 50=0.08%, 100=0.16%, 250=1.21%, 500=44.53%, 750=19.26% lat (msec) : 1000=21.33%, 2000=13.44% cpu : usr=0.08%, sys=0.78%, ctx=4935, 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=146757: Mon Jun 1 15:50:48 2026 read: IOPS=12, BW=48.6KiB/s (49.7kB/s)(4984KiB/102652msec) slat (usec): min=3077, max=43409, avg=13198.49, stdev=6414.07 clat (msec): min=12, max=686, avg=393.19, stdev=83.64 lat (msec): min=16, max=694, avg=406.40, stdev=84.11 clat percentiles (msec): | 1.00th=[ 224], 5.00th=[ 271], 10.00th=[ 296], 20.00th=[ 326], | 30.00th=[ 347], 40.00th=[ 368], 50.00th=[ 388], 60.00th=[ 409], | 70.00th=[ 435], 80.00th=[ 464], 90.00th=[ 502], 95.00th=[ 531], | 99.00th=[ 617], 99.50th=[ 634], 99.90th=[ 651], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 7, max= 103, per=24.61%, avg=48.00, stdev=21.30, samples=204 iops : min= 1, max= 25, avg=11.51, stdev= 5.36, samples=204 write: IOPS=12, BW=51.2KiB/s (52.4kB/s)(5256KiB/102652msec); 0 zone resets slat (usec): min=59, max=15830, avg=491.58, stdev=1147.01 clat (msec): min=164, max=1571, avg=861.78, stdev=228.16 lat (msec): min=164, max=1571, avg=862.27, stdev=228.11 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 518], 10.00th=[ 584], 20.00th=[ 659], | 30.00th=[ 735], 40.00th=[ 793], 50.00th=[ 852], 60.00th=[ 911], | 70.00th=[ 969], 80.00th=[ 1045], 90.00th=[ 1150], 95.00th=[ 1267], | 99.00th=[ 1418], 99.50th=[ 1519], 99.90th=[ 1569], 99.95th=[ 1569], | 99.99th=[ 1569] bw ( KiB/s): min= 8, max= 103, per=24.94%, avg=50.63, stdev=19.29, samples=203 iops : min= 2, max= 25, avg=12.17, stdev= 4.83, samples=203 lat (msec) : 20=0.04%, 100=0.08%, 250=1.68%, 500=43.98%, 750=19.88% lat (msec) : 1000=21.29%, 2000=13.05% cpu : usr=0.10%, sys=0.77%, ctx=4951, 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=146758: Mon Jun 1 15:50:48 2026 read: IOPS=12, BW=49.3KiB/s (50.5kB/s)(5060KiB/102581msec) slat (usec): min=3055, max=54024, avg=13046.24, stdev=6438.28 clat (msec): min=33, max=690, avg=395.64, stdev=87.30 lat (msec): min=39, max=697, avg=408.69, stdev=87.82 clat percentiles (msec): | 1.00th=[ 209], 5.00th=[ 268], 10.00th=[ 292], 20.00th=[ 326], | 30.00th=[ 351], 40.00th=[ 372], 50.00th=[ 393], 60.00th=[ 409], | 70.00th=[ 435], 80.00th=[ 464], 90.00th=[ 506], 95.00th=[ 558], | 99.00th=[ 617], 99.50th=[ 642], 99.90th=[ 684], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 7, max= 103, per=25.08%, avg=48.91, stdev=20.25, samples=203 iops : min= 1, max= 25, avg=11.73, stdev= 5.08, samples=203 write: IOPS=12, BW=50.5KiB/s (51.7kB/s)(5180KiB/102581msec); 0 zone resets slat (usec): min=54, max=13561, avg=447.17, stdev=980.54 clat (msec): min=106, max=1542, avg=865.35, stdev=225.03 lat (msec): min=107, max=1543, avg=865.80, stdev=225.07 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 535], 10.00th=[ 600], 20.00th=[ 676], | 30.00th=[ 726], 40.00th=[ 793], 50.00th=[ 852], 60.00th=[ 919], | 70.00th=[ 978], 80.00th=[ 1053], 90.00th=[ 1167], 95.00th=[ 1301], | 99.00th=[ 1435], 99.50th=[ 1452], 99.90th=[ 1485], 99.95th=[ 1536], | 99.99th=[ 1536] bw ( KiB/s): min= 7, max= 112, per=24.49%, avg=49.71, stdev=17.27, samples=204 iops : min= 1, max= 28, avg=11.94, stdev= 4.33, samples=204 lat (msec) : 50=0.08%, 100=0.16%, 250=1.41%, 500=43.79%, 750=21.05% lat (msec) : 1000=19.88%, 2000=13.63% cpu : usr=0.10%, sys=0.78%, ctx=4986, 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=195KiB/s (200kB/s), 48.4KiB/s-49.5KiB/s (49.6kB/s-50.7kB/s), io=19.6MiB (20.5MB), run=102011-102710msec WRITE: bw=203KiB/s (208kB/s), 50.5KiB/s-51.3KiB/s (51.7kB/s-52.5kB/s), io=20.4MiB (21.4MB), run=102011-102710msec 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=146778: Mon Jun 1 15:50:55 2026 read: IOPS=2, BW=96.2MiB/s (101MB/s)(40.0MiB/416msec) slat (nsec): min=21301k, max=21301k, avg=21300594.00, stdev= 0.00 clat (nsec): min=370778k, max=370778k, avg=370778295.00, stdev= 0.00 lat (nsec): min=392084k, max=392084k, avg=392083656.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 372], 5.00th=[ 372], 10.00th=[ 372], 20.00th=[ 372], | 30.00th=[ 372], 40.00th=[ 372], 50.00th=[ 372], 60.00th=[ 372], | 70.00th=[ 372], 80.00th=[ 372], 90.00th=[ 372], 95.00th=[ 372], | 99.00th=[ 372], 99.50th=[ 372], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=1.93%, ctx=37, majf=0, minf=10 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=96.2MiB/s (101MB/s), 96.2MiB/s-96.2MiB/s (101MB/s-101MB/s), io=40.0MiB (41.9MB), run=416-416msec 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