== sanity test 398c: run fio to test AIO ================= 22:49:47 (1788749387) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.310444 s, 135 MB/s osc.lustre-OST0000-osc-ffff8999834c8000.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=145621: Sun Sep 6 22:51:21 2026 write: IOPS=28, BW=116KiB/s (119kB/s)(10.0MiB/88393msec); 0 zone resets slat (usec): min=22, max=20687, avg=218.68, stdev=684.11 clat (msec): min=108, max=979, avg=551.59, stdev=130.87 lat (msec): min=108, max=979, avg=551.82, stdev=130.89 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 338], 10.00th=[ 397], 20.00th=[ 460], | 30.00th=[ 498], 40.00th=[ 527], 50.00th=[ 550], 60.00th=[ 575], | 70.00th=[ 609], 80.00th=[ 642], 90.00th=[ 709], 95.00th=[ 776], | 99.00th=[ 894], 99.50th=[ 911], 99.90th=[ 936], 99.95th=[ 944], | 99.99th=[ 978] bw ( KiB/s): min= 7, max= 256, per=24.81%, avg=114.87, stdev=35.69, samples=176 iops : min= 1, max= 64, avg=28.34, stdev= 8.97, samples=176 lat (msec) : 250=2.66%, 500=28.24%, 750=62.11%, 1000=6.99% cpu : usr=0.07%, sys=0.43%, ctx=2469, 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=145622: Sun Sep 6 22:51:21 2026 write: IOPS=28, BW=116KiB/s (119kB/s)(10.0MiB/88360msec); 0 zone resets slat (usec): min=22, max=23502, avg=213.77, stdev=656.80 clat (msec): min=105, max=1183, avg=551.71, stdev=137.48 lat (msec): min=105, max=1183, avg=551.93, stdev=137.49 clat percentiles (msec): | 1.00th=[ 194], 5.00th=[ 321], 10.00th=[ 384], 20.00th=[ 451], | 30.00th=[ 498], 40.00th=[ 527], 50.00th=[ 550], 60.00th=[ 584], | 70.00th=[ 617], 80.00th=[ 651], 90.00th=[ 718], 95.00th=[ 776], | 99.00th=[ 911], 99.50th=[ 927], 99.90th=[ 1083], 99.95th=[ 1133], | 99.99th=[ 1183] bw ( KiB/s): min= 8, max= 384, per=24.92%, avg=115.38, stdev=40.27, samples=175 iops : min= 2, max= 96, avg=28.47, stdev=10.06, samples=175 lat (msec) : 250=3.20%, 500=27.89%, 750=62.19%, 1000=6.56%, 2000=0.16% cpu : usr=0.07%, sys=0.44%, ctx=2608, 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=145623: Sun Sep 6 22:51:21 2026 write: IOPS=28, BW=116KiB/s (119kB/s)(10.0MiB/88394msec); 0 zone resets slat (usec): min=21, max=6021, avg=198.60, stdev=432.26 clat (msec): min=127, max=1113, avg=551.66, stdev=134.19 lat (msec): min=127, max=1114, avg=551.86, stdev=134.20 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 321], 10.00th=[ 384], 20.00th=[ 460], | 30.00th=[ 498], 40.00th=[ 531], 50.00th=[ 558], 60.00th=[ 584], | 70.00th=[ 609], 80.00th=[ 642], 90.00th=[ 709], 95.00th=[ 776], | 99.00th=[ 877], 99.50th=[ 911], 99.90th=[ 944], 99.95th=[ 1011], | 99.99th=[ 1116] bw ( KiB/s): min= 39, max= 256, per=24.95%, avg=115.51, stdev=33.17, samples=175 iops : min= 9, max= 64, avg=28.50, stdev= 8.34, samples=175 lat (msec) : 250=2.42%, 500=29.10%, 750=61.33%, 1000=7.07%, 2000=0.08% cpu : usr=0.08%, sys=0.41%, ctx=2687, 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=145624: Sun Sep 6 22:51:21 2026 write: IOPS=28, BW=116KiB/s (119kB/s)(10.0MiB/88418msec); 0 zone resets slat (usec): min=21, max=12565, avg=208.82, stdev=509.41 clat (msec): min=110, max=965, avg=551.86, stdev=130.25 lat (msec): min=110, max=965, avg=552.07, stdev=130.27 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 330], 10.00th=[ 393], 20.00th=[ 451], | 30.00th=[ 498], 40.00th=[ 531], 50.00th=[ 558], 60.00th=[ 584], | 70.00th=[ 617], 80.00th=[ 642], 90.00th=[ 709], 95.00th=[ 768], | 99.00th=[ 902], 99.50th=[ 911], 99.90th=[ 944], 99.95th=[ 961], | 99.99th=[ 969] bw ( KiB/s): min= 24, max= 368, per=24.81%, avg=114.85, stdev=36.05, samples=176 iops : min= 6, max= 92, avg=28.34, stdev= 9.05, samples=176 lat (msec) : 250=2.19%, 500=28.95%, 750=62.42%, 1000=6.45% cpu : usr=0.08%, sys=0.44%, ctx=2808, 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=463KiB/s (474kB/s), 116KiB/s-116KiB/s (119kB/s-119kB/s), io=40.0MiB (41.9MB), run=88360-88418msec 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=145647: Sun Sep 6 22:52:26 2026 read: IOPS=20, BW=83.1KiB/s (85.0kB/s)(5048KiB/60781msec) slat (usec): min=1565, max=43702, avg=7998.44, stdev=5354.51 clat (msec): min=5, max=1376, avg=243.34, stdev=137.09 lat (msec): min=11, max=1386, avg=251.35, stdev=140.04 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 125], 10.00th=[ 142], 20.00th=[ 167], | 30.00th=[ 184], 40.00th=[ 197], 50.00th=[ 211], 60.00th=[ 232], | 70.00th=[ 249], 80.00th=[ 268], 90.00th=[ 334], 95.00th=[ 558], | 99.00th=[ 818], 99.50th=[ 869], 99.90th=[ 1083], 99.95th=[ 1385], | 99.99th=[ 1385] bw ( KiB/s): min= 7, max= 176, per=25.18%, avg=82.85, stdev=36.98, samples=120 iops : min= 1, max= 44, avg=20.30, stdev= 9.31, samples=120 write: IOPS=21, BW=85.4KiB/s (87.5kB/s)(5192KiB/60781msec); 0 zone resets slat (usec): min=31, max=15396, avg=224.95, stdev=619.13 clat (msec): min=128, max=1974, avg=503.00, stdev=245.38 lat (msec): min=128, max=1974, avg=503.23, stdev=245.41 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 284], 10.00th=[ 317], 20.00th=[ 359], | 30.00th=[ 388], 40.00th=[ 422], 50.00th=[ 447], 60.00th=[ 481], | 70.00th=[ 523], 80.00th=[ 575], 90.00th=[ 676], 95.00th=[ 995], | 99.00th=[ 1620], 99.50th=[ 1754], 99.90th=[ 1972], 99.95th=[ 1972], | 99.99th=[ 1972] bw ( KiB/s): min= 7, max= 160, per=24.83%, avg=85.18, stdev=35.14, samples=120 iops : min= 1, max= 40, avg=20.88, stdev= 8.91, samples=120 lat (msec) : 10=0.12%, 50=0.12%, 100=0.55%, 250=35.62%, 500=43.01% lat (msec) : 750=15.82%, 1000=2.19%, 2000=2.58% cpu : usr=0.16%, sys=0.98%, ctx=5202, 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=145648: Sun Sep 6 22:52:26 2026 read: IOPS=20, BW=81.7KiB/s (83.7kB/s)(4976KiB/60869msec) slat (usec): min=1644, max=56729, avg=8237.53, stdev=5632.71 clat (msec): min=8, max=943, avg=242.69, stdev=130.26 lat (msec): min=13, max=954, avg=250.93, stdev=133.24 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 125], 10.00th=[ 144], 20.00th=[ 165], | 30.00th=[ 184], 40.00th=[ 199], 50.00th=[ 213], 60.00th=[ 232], | 70.00th=[ 249], 80.00th=[ 275], 90.00th=[ 342], 95.00th=[ 550], | 99.00th=[ 785], 99.50th=[ 835], 99.90th=[ 919], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 7, max= 184, per=24.62%, avg=81.01, stdev=37.82, samples=121 iops : min= 1, max= 46, avg=19.84, stdev= 9.54, samples=121 write: IOPS=21, BW=86.5KiB/s (88.6kB/s)(5264KiB/60869msec); 0 zone resets slat (usec): min=30, max=7643, avg=207.08, stdev=388.55 clat (msec): min=134, max=1936, avg=501.45, stdev=237.42 lat (msec): min=134, max=1936, avg=501.66, stdev=237.41 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 284], 10.00th=[ 317], 20.00th=[ 355], | 30.00th=[ 388], 40.00th=[ 422], 50.00th=[ 456], 60.00th=[ 485], | 70.00th=[ 527], 80.00th=[ 575], 90.00th=[ 667], 95.00th=[ 1011], | 99.00th=[ 1552], 99.50th=[ 1720], 99.90th=[ 1905], 99.95th=[ 1938], | 99.99th=[ 1938] bw ( KiB/s): min= 7, max= 151, per=24.97%, avg=85.66, stdev=34.53, samples=121 iops : min= 1, max= 37, avg=21.00, stdev= 8.76, samples=121 lat (msec) : 10=0.04%, 20=0.08%, 50=0.20%, 100=0.43%, 250=34.88% lat (msec) : 500=42.66%, 750=17.27%, 1000=1.84%, 2000=2.62% cpu : usr=0.15%, sys=0.92%, ctx=5028, 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=145649: Sun Sep 6 22:52:26 2026 read: IOPS=20, BW=82.2KiB/s (84.2kB/s)(4984KiB/60625msec) slat (usec): min=33, max=116798, avg=7890.52, stdev=6198.87 clat (msec): min=17, max=1480, avg=235.67, stdev=128.12 lat (msec): min=23, max=1512, avg=243.56, stdev=131.48 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 125], 10.00th=[ 140], 20.00th=[ 163], | 30.00th=[ 180], 40.00th=[ 194], 50.00th=[ 209], 60.00th=[ 224], | 70.00th=[ 245], 80.00th=[ 266], 90.00th=[ 317], 95.00th=[ 510], | 99.00th=[ 768], 99.50th=[ 818], 99.90th=[ 1318], 99.95th=[ 1485], | 99.99th=[ 1485] bw ( KiB/s): min= 7, max= 192, per=25.36%, avg=83.42, stdev=36.91, samples=118 iops : min= 1, max= 48, avg=20.45, stdev= 9.31, samples=118 write: IOPS=21, BW=86.7KiB/s (88.8kB/s)(5256KiB/60625msec); 0 zone resets slat (usec): min=25, max=19872, avg=243.98, stdev=795.15 clat (msec): min=86, max=2149, avg=506.25, stdev=260.22 lat (msec): min=86, max=2149, avg=506.50, stdev=260.25 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 275], 10.00th=[ 313], 20.00th=[ 359], | 30.00th=[ 388], 40.00th=[ 422], 50.00th=[ 451], 60.00th=[ 485], | 70.00th=[ 527], 80.00th=[ 575], 90.00th=[ 676], 95.00th=[ 1083], | 99.00th=[ 1737], 99.50th=[ 1989], 99.90th=[ 2165], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 7, max= 160, per=25.27%, avg=86.68, stdev=34.35, samples=119 iops : min= 1, max= 40, avg=21.26, stdev= 8.69, samples=119 lat (msec) : 20=0.04%, 50=0.20%, 100=0.39%, 250=36.48%, 500=42.07% lat (msec) : 750=16.41%, 1000=1.52%, 2000=2.70%, >=2000=0.20% cpu : usr=0.14%, sys=0.94%, ctx=5316, 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=145650: Sun Sep 6 22:52:26 2026 read: IOPS=20, BW=83.3KiB/s (85.2kB/s)(5060KiB/60779msec) slat (usec): min=1553, max=57203, avg=8127.03, stdev=5678.44 clat (msec): min=13, max=941, avg=242.82, stdev=130.15 lat (msec): min=20, max=960, avg=250.96, stdev=133.21 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 129], 10.00th=[ 144], 20.00th=[ 167], | 30.00th=[ 182], 40.00th=[ 199], 50.00th=[ 213], 60.00th=[ 230], | 70.00th=[ 247], 80.00th=[ 268], 90.00th=[ 355], 95.00th=[ 575], | 99.00th=[ 802], 99.50th=[ 835], 99.90th=[ 936], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 7, max= 152, per=25.48%, avg=83.82, stdev=37.14, samples=119 iops : min= 1, max= 38, avg=20.55, stdev= 9.43, samples=119 write: IOPS=21, BW=85.2KiB/s (87.3kB/s)(5180KiB/60779msec); 0 zone resets slat (usec): min=25, max=6145, avg=208.91, stdev=392.08 clat (msec): min=92, max=1862, avg=504.34, stdev=243.86 lat (msec): min=92, max=1862, avg=504.55, stdev=243.89 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 284], 10.00th=[ 317], 20.00th=[ 359], | 30.00th=[ 393], 40.00th=[ 426], 50.00th=[ 456], 60.00th=[ 485], | 70.00th=[ 527], 80.00th=[ 567], 90.00th=[ 676], 95.00th=[ 1028], | 99.00th=[ 1586], 99.50th=[ 1720], 99.90th=[ 1838], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 8, max= 184, per=24.76%, avg=84.93, stdev=34.10, samples=120 iops : min= 2, max= 46, avg=20.83, stdev= 8.61, samples=120 lat (msec) : 20=0.04%, 50=0.16%, 100=0.43%, 250=36.45%, 500=41.68% lat (msec) : 750=16.64%, 1000=1.88%, 2000=2.73% cpu : usr=0.17%, sys=0.93%, ctx=5291, 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=330KiB/s (338kB/s), 81.7KiB/s-83.3KiB/s (83.7kB/s-85.2kB/s), io=19.6MiB (20.5MB), run=60625-60869msec WRITE: bw=343KiB/s (351kB/s), 85.2KiB/s-86.7KiB/s (87.3kB/s-88.8kB/s), io=20.4MiB (21.4MB), run=60625-60869msec 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=145663: Sun Sep 6 22:52:36 2026 read: IOPS=1, BW=53.3MiB/s (55.8MB/s)(40.0MiB/751msec) slat (nsec): min=56095k, max=56095k, avg=56094556.00, stdev= 0.00 clat (nsec): min=659702k, max=659702k, avg=659702497.00, stdev= 0.00 lat (nsec): min=715801k, max=715801k, avg=715801407.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 659], 5.00th=[ 659], 10.00th=[ 659], 20.00th=[ 659], | 30.00th=[ 659], 40.00th=[ 659], 50.00th=[ 659], 60.00th=[ 659], | 70.00th=[ 659], 80.00th=[ 659], 90.00th=[ 659], 95.00th=[ 659], | 99.00th=[ 659], 99.50th=[ 659], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.73%, ctx=13, 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=53.3MiB/s (55.8MB/s), 53.3MiB/s-53.3MiB/s (55.8MB/s-55.8MB/s), io=40.0MiB (41.9MB), run=751-751msec 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