== sanity test 398c: run fio to test AIO ================= 12:05:49 (1780329949) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.567046 s, 74.0 MB/s osc.lustre-OST0000-osc-ffff9329f1a5b000.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=154585: Mon Jun 1 12:09:32 2026 write: IOPS=12, BW=48.1KiB/s (49.3kB/s)(10.0MiB/212698msec); 0 zone resets slat (usec): min=40, max=36317, avg=442.21, stdev=1549.20 clat (msec): min=116, max=4342, avg=1328.53, stdev=581.42 lat (msec): min=119, max=4342, avg=1328.98, stdev=581.45 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 617], 10.00th=[ 735], 20.00th=[ 860], | 30.00th=[ 978], 40.00th=[ 1116], 50.00th=[ 1234], 60.00th=[ 1351], | 70.00th=[ 1502], 80.00th=[ 1737], 90.00th=[ 2165], 95.00th=[ 2433], | 99.00th=[ 3004], 99.50th=[ 3708], 99.90th=[ 4144], 99.95th=[ 4144], | 99.99th=[ 4329] bw ( KiB/s): min= 7, max= 256, per=25.84%, avg=49.61, stdev=27.07, samples=403 iops : min= 1, max= 64, avg=11.83, stdev= 6.81, samples=403 lat (msec) : 250=0.86%, 500=1.91%, 750=8.48%, 1000=20.43%, 2000=55.35% lat (msec) : >=2000=12.97% cpu : usr=0.05%, sys=0.29%, ctx=2375, 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=154586: Mon Jun 1 12:09:32 2026 write: IOPS=12, BW=48.1KiB/s (49.3kB/s)(10.0MiB/212759msec); 0 zone resets slat (usec): min=43, max=42866, avg=393.98, stdev=1482.90 clat (msec): min=188, max=4177, avg=1328.35, stdev=583.31 lat (msec): min=195, max=4177, avg=1328.75, stdev=583.35 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 634], 10.00th=[ 735], 20.00th=[ 844], | 30.00th=[ 969], 40.00th=[ 1099], 50.00th=[ 1217], 60.00th=[ 1351], | 70.00th=[ 1519], 80.00th=[ 1737], 90.00th=[ 2165], 95.00th=[ 2400], | 99.00th=[ 3071], 99.50th=[ 3742], 99.90th=[ 4144], 99.95th=[ 4178], | 99.99th=[ 4178] bw ( KiB/s): min= 7, max= 240, per=26.29%, avg=50.47, stdev=29.86, samples=396 iops : min= 1, max= 60, avg=12.05, stdev= 7.50, samples=396 lat (msec) : 250=0.12%, 500=2.46%, 750=9.02%, 1000=20.82%, 2000=54.38% lat (msec) : >=2000=13.20% cpu : usr=0.06%, sys=0.40%, ctx=1944, 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=154587: Mon Jun 1 12:09:32 2026 write: IOPS=12, BW=48.1KiB/s (49.3kB/s)(10.0MiB/212730msec); 0 zone resets slat (usec): min=50, max=23636, avg=415.74, stdev=1288.61 clat (msec): min=224, max=4285, avg=1328.43, stdev=577.65 lat (msec): min=224, max=4286, avg=1328.85, stdev=577.67 clat percentiles (msec): | 1.00th=[ 347], 5.00th=[ 592], 10.00th=[ 726], 20.00th=[ 860], | 30.00th=[ 978], 40.00th=[ 1099], 50.00th=[ 1217], 60.00th=[ 1351], | 70.00th=[ 1502], 80.00th=[ 1720], 90.00th=[ 2165], 95.00th=[ 2400], | 99.00th=[ 2903], 99.50th=[ 3809], 99.90th=[ 4178], 99.95th=[ 4178], | 99.99th=[ 4279] bw ( KiB/s): min= 7, max= 160, per=25.71%, avg=49.37, stdev=29.32, samples=405 iops : min= 1, max= 40, avg=11.77, stdev= 7.36, samples=405 lat (msec) : 250=0.04%, 500=2.73%, 750=8.55%, 1000=20.82%, 2000=54.41% lat (msec) : >=2000=13.44% cpu : usr=0.04%, sys=0.26%, ctx=2196, 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=154588: Mon Jun 1 12:09:32 2026 write: IOPS=12, BW=48.1KiB/s (49.3kB/s)(10.0MiB/212758msec); 0 zone resets slat (usec): min=49, max=17796, avg=403.71, stdev=1149.75 clat (msec): min=201, max=4342, avg=1328.32, stdev=580.40 lat (msec): min=201, max=4342, avg=1328.73, stdev=580.43 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 625], 10.00th=[ 726], 20.00th=[ 860], | 30.00th=[ 986], 40.00th=[ 1099], 50.00th=[ 1217], 60.00th=[ 1351], | 70.00th=[ 1502], 80.00th=[ 1687], 90.00th=[ 2140], 95.00th=[ 2433], | 99.00th=[ 3138], 99.50th=[ 3876], 99.90th=[ 4178], 99.95th=[ 4178], | 99.99th=[ 4329] bw ( KiB/s): min= 7, max= 192, per=26.03%, avg=49.99, stdev=27.66, samples=400 iops : min= 1, max= 48, avg=11.93, stdev= 6.96, samples=400 lat (msec) : 250=0.23%, 500=2.62%, 750=8.05%, 1000=21.33%, 2000=54.45% lat (msec) : >=2000=13.32% cpu : usr=0.03%, sys=0.28%, ctx=2158, 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=193KiB/s (197kB/s), 48.1KiB/s-48.1KiB/s (49.3kB/s-49.3kB/s), io=40.0MiB (41.9MB), run=212698-212759msec 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=154627: Mon Jun 1 12:10:46 2026 read: IOPS=18, BW=72.9KiB/s (74.7kB/s)(5048KiB/69201msec) slat (usec): min=2753, max=32899, avg=9008.86, stdev=4262.71 clat (msec): min=44, max=605, avg=275.95, stdev=64.76 lat (msec): min=48, max=613, avg=284.97, stdev=65.70 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 182], 10.00th=[ 199], 20.00th=[ 224], | 30.00th=[ 241], 40.00th=[ 259], 50.00th=[ 275], 60.00th=[ 288], | 70.00th=[ 305], 80.00th=[ 326], 90.00th=[ 359], 95.00th=[ 384], | 99.00th=[ 447], 99.50th=[ 464], 99.90th=[ 506], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 23, max= 151, per=25.14%, avg=72.64, stdev=27.40, samples=137 iops : min= 5, max= 37, avg=17.75, stdev= 6.90, samples=137 write: IOPS=18, BW=75.0KiB/s (76.8kB/s)(5192KiB/69201msec); 0 zone resets slat (usec): min=46, max=11940, avg=375.66, stdev=711.66 clat (msec): min=121, max=1038, avg=573.64, stdev=146.02 lat (msec): min=121, max=1038, avg=574.02, stdev=146.04 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 334], 10.00th=[ 393], 20.00th=[ 451], | 30.00th=[ 489], 40.00th=[ 531], 50.00th=[ 575], 60.00th=[ 609], | 70.00th=[ 642], 80.00th=[ 701], 90.00th=[ 760], 95.00th=[ 818], | 99.00th=[ 919], 99.50th=[ 978], 99.90th=[ 1036], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 31, max= 135, per=24.78%, avg=74.58, stdev=23.36, samples=137 iops : min= 7, max= 33, avg=18.23, stdev= 5.84, samples=137 lat (msec) : 50=0.16%, 100=0.12%, 250=17.58%, 500=47.66%, 750=28.44% lat (msec) : 1000=5.98%, 2000=0.08% cpu : usr=0.10%, sys=0.96%, ctx=5133, 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=154628: Mon Jun 1 12:10:46 2026 read: IOPS=17, BW=71.9KiB/s (73.7kB/s)(4976KiB/69175msec) slat (usec): min=55, max=43003, avg=9205.08, stdev=4578.99 clat (msec): min=11, max=472, avg=277.58, stdev=64.14 lat (msec): min=20, max=484, avg=286.79, stdev=65.03 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 182], 10.00th=[ 203], 20.00th=[ 226], | 30.00th=[ 245], 40.00th=[ 262], 50.00th=[ 275], 60.00th=[ 292], | 70.00th=[ 309], 80.00th=[ 326], 90.00th=[ 363], 95.00th=[ 393], | 99.00th=[ 447], 99.50th=[ 460], 99.90th=[ 468], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 7, max= 128, per=24.70%, avg=71.38, stdev=27.12, samples=137 iops : min= 1, max= 32, avg=17.44, stdev= 6.80, samples=137 write: IOPS=19, BW=76.1KiB/s (77.9kB/s)(5264KiB/69175msec); 0 zone resets slat (usec): min=41, max=10099, avg=361.68, stdev=603.37 clat (msec): min=31, max=1007, avg=569.08, stdev=151.74 lat (msec): min=31, max=1008, avg=569.44, stdev=151.78 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 317], 10.00th=[ 380], 20.00th=[ 460], | 30.00th=[ 493], 40.00th=[ 527], 50.00th=[ 567], 60.00th=[ 609], | 70.00th=[ 642], 80.00th=[ 701], 90.00th=[ 760], 95.00th=[ 818], | 99.00th=[ 936], 99.50th=[ 969], 99.90th=[ 1003], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 32, max= 152, per=25.09%, avg=75.53, stdev=24.17, samples=137 iops : min= 8, max= 38, avg=18.47, stdev= 6.06, samples=137 lat (msec) : 20=0.12%, 50=0.12%, 100=0.23%, 250=16.48%, 500=48.32% lat (msec) : 750=29.18%, 1000=5.47%, 2000=0.08% cpu : usr=0.11%, sys=0.98%, ctx=5235, 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=154629: Mon Jun 1 12:10:46 2026 read: IOPS=18, BW=72.1KiB/s (73.8kB/s)(4984KiB/69143msec) slat (usec): min=2473, max=35458, avg=9302.04, stdev=4399.80 clat (msec): min=21, max=606, avg=277.22, stdev=64.92 lat (msec): min=30, max=615, avg=286.54, stdev=65.51 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 186], 10.00th=[ 203], 20.00th=[ 226], | 30.00th=[ 243], 40.00th=[ 259], 50.00th=[ 271], 60.00th=[ 288], | 70.00th=[ 309], 80.00th=[ 330], 90.00th=[ 359], 95.00th=[ 393], | 99.00th=[ 451], 99.50th=[ 464], 99.90th=[ 600], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 15, max= 149, per=24.86%, avg=71.85, stdev=27.46, samples=137 iops : min= 3, max= 37, avg=17.55, stdev= 6.92, samples=137 write: IOPS=19, BW=76.0KiB/s (77.8kB/s)(5256KiB/69143msec); 0 zone resets slat (usec): min=47, max=8851, avg=355.56, stdev=623.51 clat (msec): min=101, max=1008, avg=568.38, stdev=145.43 lat (msec): min=101, max=1008, avg=568.73, stdev=145.41 clat percentiles (msec): | 1.00th=[ 241], 5.00th=[ 330], 10.00th=[ 384], 20.00th=[ 456], | 30.00th=[ 493], 40.00th=[ 531], 50.00th=[ 567], 60.00th=[ 609], | 70.00th=[ 642], 80.00th=[ 693], 90.00th=[ 760], 95.00th=[ 802], | 99.00th=[ 927], 99.50th=[ 953], 99.90th=[ 978], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 15, max= 136, per=25.02%, avg=75.30, stdev=25.18, samples=137 iops : min= 3, max= 34, avg=18.42, stdev= 6.33, samples=137 lat (msec) : 50=0.12%, 100=0.23%, 250=17.42%, 500=47.19%, 750=29.38% lat (msec) : 1000=5.62%, 2000=0.04% cpu : usr=0.10%, sys=0.93%, ctx=5151, 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=154630: Mon Jun 1 12:10:46 2026 read: IOPS=18, BW=73.1KiB/s (74.9kB/s)(5060KiB/69201msec) slat (usec): min=1903, max=38864, avg=9156.37, stdev=4348.41 clat (msec): min=6, max=477, avg=275.49, stdev=63.80 lat (msec): min=15, max=497, avg=284.65, stdev=64.56 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 182], 10.00th=[ 199], 20.00th=[ 224], | 30.00th=[ 243], 40.00th=[ 257], 50.00th=[ 275], 60.00th=[ 292], | 70.00th=[ 305], 80.00th=[ 326], 90.00th=[ 359], 95.00th=[ 384], | 99.00th=[ 439], 99.50th=[ 460], 99.90th=[ 472], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 7, max= 184, per=25.24%, avg=72.96, stdev=26.80, samples=137 iops : min= 1, max= 46, avg=17.82, stdev= 6.71, samples=137 write: IOPS=18, BW=74.9KiB/s (76.7kB/s)(5180KiB/69201msec); 0 zone resets slat (usec): min=59, max=7789, avg=376.73, stdev=620.09 clat (msec): min=101, max=1061, avg=574.82, stdev=145.63 lat (msec): min=101, max=1061, avg=575.20, stdev=145.68 clat percentiles (msec): | 1.00th=[ 249], 5.00th=[ 334], 10.00th=[ 393], 20.00th=[ 456], | 30.00th=[ 498], 40.00th=[ 535], 50.00th=[ 567], 60.00th=[ 609], | 70.00th=[ 651], 80.00th=[ 701], 90.00th=[ 760], 95.00th=[ 818], | 99.00th=[ 927], 99.50th=[ 944], 99.90th=[ 978], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 16, max= 128, per=24.64%, avg=74.17, stdev=22.89, samples=137 iops : min= 4, max= 32, avg=18.13, stdev= 5.76, samples=137 lat (msec) : 10=0.04%, 20=0.04%, 50=0.12%, 100=0.12%, 250=17.34% lat (msec) : 500=47.42%, 750=28.83%, 1000=6.05%, 2000=0.04% cpu : usr=0.13%, sys=0.98%, ctx=5191, 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=290KiB/s (297kB/s), 71.9KiB/s-73.1KiB/s (73.7kB/s-74.9kB/s), io=19.6MiB (20.5MB), run=69143-69201msec WRITE: bw=302KiB/s (309kB/s), 74.9KiB/s-76.1KiB/s (76.7kB/s-77.9kB/s), io=20.4MiB (21.4MB), run=69143-69201msec 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=154645: Mon Jun 1 12:10:51 2026 read: IOPS=3, BW=127MiB/s (133MB/s)(40.0MiB/315msec) slat (nsec): min=31059k, max=31059k, avg=31059456.00, stdev= 0.00 clat (nsec): min=259631k, max=259631k, avg=259631138.00, stdev= 0.00 lat (nsec): min=290696k, max=290696k, avg=290695713.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 259], 5.00th=[ 259], 10.00th=[ 259], 20.00th=[ 259], | 30.00th=[ 259], 40.00th=[ 259], 50.00th=[ 259], 60.00th=[ 259], | 70.00th=[ 259], 80.00th=[ 259], 90.00th=[ 259], 95.00th=[ 259], | 99.00th=[ 259], 99.50th=[ 259], 99.90th=[ 259], 99.95th=[ 259], | 99.99th=[ 259] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=4.14%, ctx=24, 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=127MiB/s (133MB/s), 127MiB/s-127MiB/s (133MB/s-133MB/s), io=40.0MiB (41.9MB), run=315-315msec 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