== sanity test 398c: run fio to test AIO ================= 22:48:39 (1788490119) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.472713 s, 88.7 MB/s osc.lustre-OST0000-osc-ffff933b180b2800.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=180369: Thu Sep 3 22:49:16 2026 write: IOPS=93, BW=374KiB/s (383kB/s)(10.0MiB/27357msec); 0 zone resets slat (usec): min=27, max=7602, avg=178.55, stdev=520.34 clat (msec): min=24, max=370, avg=170.25, stdev=45.19 lat (msec): min=24, max=370, avg=170.43, stdev=45.20 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 111], 10.00th=[ 118], 20.00th=[ 136], | 30.00th=[ 146], 40.00th=[ 155], 50.00th=[ 161], 60.00th=[ 171], | 70.00th=[ 188], 80.00th=[ 205], 90.00th=[ 232], 95.00th=[ 251], | 99.00th=[ 317], 99.50th=[ 334], 99.90th=[ 334], 99.95th=[ 359], | 99.99th=[ 372] bw ( KiB/s): min= 236, max= 637, per=25.00%, avg=374.24, stdev=94.95, samples=54 iops : min= 59, max= 159, avg=93.22, stdev=23.79, samples=54 lat (msec) : 50=0.04%, 100=1.99%, 250=92.58%, 500=5.39% cpu : usr=0.18%, sys=0.83%, ctx=1522, 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=180370: Thu Sep 3 22:49:16 2026 write: IOPS=94, BW=376KiB/s (385kB/s)(10.0MiB/27226msec); 0 zone resets slat (usec): min=27, max=20823, avg=266.88, stdev=915.48 clat (msec): min=19, max=386, avg=169.66, stdev=45.48 lat (msec): min=20, max=386, avg=169.93, stdev=45.49 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 108], 10.00th=[ 121], 20.00th=[ 134], | 30.00th=[ 144], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 186], 80.00th=[ 201], 90.00th=[ 228], 95.00th=[ 255], | 99.00th=[ 309], 99.50th=[ 321], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 190, max= 589, per=24.98%, avg=373.96, stdev=82.55, samples=54 iops : min= 47, max= 147, avg=93.15, stdev=20.66, samples=54 lat (msec) : 20=0.04%, 50=0.23%, 100=2.50%, 250=91.41%, 500=5.82% cpu : usr=0.20%, sys=1.03%, ctx=2410, 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=180371: Thu Sep 3 22:49:16 2026 write: IOPS=93, BW=374KiB/s (383kB/s)(10.0MiB/27358msec); 0 zone resets slat (usec): min=25, max=16258, avg=191.03, stdev=784.56 clat (msec): min=10, max=372, avg=170.08, stdev=44.56 lat (msec): min=14, max=372, avg=170.28, stdev=44.60 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 113], 10.00th=[ 121], 20.00th=[ 134], | 30.00th=[ 146], 40.00th=[ 155], 50.00th=[ 163], 60.00th=[ 176], | 70.00th=[ 184], 80.00th=[ 201], 90.00th=[ 230], 95.00th=[ 259], | 99.00th=[ 313], 99.50th=[ 317], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 181, max= 638, per=24.99%, avg=374.15, stdev=86.58, samples=54 iops : min= 45, max= 159, avg=93.19, stdev=21.67, samples=54 lat (msec) : 20=0.04%, 50=0.12%, 100=2.66%, 250=91.41%, 500=5.78% cpu : usr=0.16%, sys=0.87%, ctx=1363, 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=180372: Thu Sep 3 22:49:16 2026 write: IOPS=93, BW=374KiB/s (383kB/s)(10.0MiB/27356msec); 0 zone resets slat (usec): min=23, max=25975, avg=264.87, stdev=973.64 clat (msec): min=20, max=399, avg=170.07, stdev=44.99 lat (msec): min=21, max=399, avg=170.34, stdev=45.03 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 108], 10.00th=[ 120], 20.00th=[ 133], | 30.00th=[ 144], 40.00th=[ 155], 50.00th=[ 163], 60.00th=[ 176], | 70.00th=[ 188], 80.00th=[ 207], 90.00th=[ 230], 95.00th=[ 249], | 99.00th=[ 313], 99.50th=[ 321], 99.90th=[ 359], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 244, max= 637, per=25.00%, avg=374.30, stdev=83.96, samples=54 iops : min= 61, max= 159, avg=93.22, stdev=21.04, samples=54 lat (msec) : 50=0.35%, 100=1.68%, 250=93.32%, 500=4.65% cpu : usr=0.20%, sys=1.12%, ctx=2829, 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=1497KiB/s (1533kB/s), 374KiB/s-376KiB/s (383kB/s-385kB/s), io=40.0MiB (41.9MB), run=27226-27358msec 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=180386: Thu Sep 3 22:50:04 2026 read: IOPS=33, BW=135KiB/s (138kB/s)(5048KiB/37527msec) slat (usec): min=2268, max=75700, avg=16234.62, stdev=10017.34 clat (msec): min=27, max=433, avg=222.77, stdev=58.07 lat (msec): min=37, max=456, avg=239.01, stdev=60.78 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 138], 10.00th=[ 153], 20.00th=[ 176], | 30.00th=[ 190], 40.00th=[ 203], 50.00th=[ 218], 60.00th=[ 232], | 70.00th=[ 249], 80.00th=[ 268], 90.00th=[ 300], 95.00th=[ 330], | 99.00th=[ 393], 99.50th=[ 409], 99.90th=[ 422], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 55, max= 232, per=25.02%, avg=133.61, stdev=33.87, samples=74 iops : min= 13, max= 58, avg=32.85, stdev= 8.53, samples=74 write: IOPS=34, BW=138KiB/s (142kB/s)(5192KiB/37527msec); 0 zone resets slat (usec): min=32, max=19888, avg=257.76, stdev=1035.12 clat (msec): min=80, max=517, avg=226.74, stdev=55.56 lat (msec): min=80, max=517, avg=226.99, stdev=55.57 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 150], 10.00th=[ 163], 20.00th=[ 182], | 30.00th=[ 194], 40.00th=[ 207], 50.00th=[ 220], 60.00th=[ 234], | 70.00th=[ 249], 80.00th=[ 268], 90.00th=[ 300], 95.00th=[ 334], | 99.00th=[ 393], 99.50th=[ 414], 99.90th=[ 481], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 48, max= 215, per=24.75%, avg=137.59, stdev=36.42, samples=74 iops : min= 12, max= 53, avg=33.85, stdev= 9.13, samples=74 lat (msec) : 50=0.04%, 100=0.20%, 250=70.78%, 500=28.95%, 750=0.04% cpu : usr=0.17%, sys=1.56%, ctx=3928, 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=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=180387: Thu Sep 3 22:50:04 2026 read: IOPS=33, BW=133KiB/s (136kB/s)(4976KiB/37459msec) slat (usec): min=55, max=177187, avg=16408.49, stdev=11506.74 clat (msec): min=14, max=434, avg=223.70, stdev=60.49 lat (msec): min=14, max=470, avg=240.11, stdev=62.96 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 136], 10.00th=[ 153], 20.00th=[ 174], | 30.00th=[ 188], 40.00th=[ 205], 50.00th=[ 220], 60.00th=[ 232], | 70.00th=[ 251], 80.00th=[ 271], 90.00th=[ 305], 95.00th=[ 330], | 99.00th=[ 388], 99.50th=[ 401], 99.90th=[ 426], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 47, max= 199, per=24.73%, avg=132.04, stdev=35.57, samples=74 iops : min= 11, max= 49, avg=32.46, stdev= 8.95, samples=74 write: IOPS=35, BW=141KiB/s (144kB/s)(5264KiB/37459msec); 0 zone resets slat (usec): min=29, max=16255, avg=244.59, stdev=855.72 clat (msec): min=49, max=461, avg=227.43, stdev=56.07 lat (msec): min=49, max=461, avg=227.68, stdev=56.07 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 148], 10.00th=[ 163], 20.00th=[ 182], | 30.00th=[ 197], 40.00th=[ 209], 50.00th=[ 222], 60.00th=[ 234], | 70.00th=[ 251], 80.00th=[ 271], 90.00th=[ 305], 95.00th=[ 330], | 99.00th=[ 393], 99.50th=[ 418], 99.90th=[ 447], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 64, max= 256, per=25.25%, avg=140.39, stdev=35.58, samples=74 iops : min= 16, max= 64, avg=34.55, stdev= 8.93, samples=74 lat (msec) : 20=0.08%, 50=0.16%, 100=0.55%, 250=68.87%, 500=30.35% cpu : usr=0.21%, sys=1.43%, ctx=3741, majf=0, minf=15 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=180388: Thu Sep 3 22:50:04 2026 read: IOPS=33, BW=134KiB/s (137kB/s)(4984KiB/37290msec) slat (usec): min=3050, max=85242, avg=16355.97, stdev=9869.33 clat (msec): min=13, max=514, avg=219.07, stdev=56.97 lat (msec): min=21, max=545, avg=235.44, stdev=59.51 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 140], 10.00th=[ 155], 20.00th=[ 171], | 30.00th=[ 186], 40.00th=[ 201], 50.00th=[ 213], 60.00th=[ 228], | 70.00th=[ 243], 80.00th=[ 264], 90.00th=[ 292], 95.00th=[ 317], | 99.00th=[ 380], 99.50th=[ 409], 99.90th=[ 460], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 39, max= 232, per=24.97%, avg=133.36, stdev=39.08, samples=73 iops : min= 9, max= 58, avg=32.78, stdev= 9.82, samples=73 write: IOPS=35, BW=141KiB/s (144kB/s)(5256KiB/37290msec); 0 zone resets slat (usec): min=32, max=10450, avg=213.04, stdev=625.89 clat (msec): min=55, max=470, avg=227.63, stdev=54.87 lat (msec): min=56, max=471, avg=227.85, stdev=54.90 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 150], 10.00th=[ 165], 20.00th=[ 182], | 30.00th=[ 197], 40.00th=[ 209], 50.00th=[ 224], 60.00th=[ 236], | 70.00th=[ 249], 80.00th=[ 271], 90.00th=[ 300], 95.00th=[ 326], | 99.00th=[ 384], 99.50th=[ 430], 99.90th=[ 456], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 55, max= 271, per=25.24%, avg=140.32, stdev=34.81, samples=73 iops : min= 13, max= 67, avg=34.52, stdev= 8.75, samples=73 lat (msec) : 20=0.04%, 50=0.08%, 100=0.27%, 250=72.11%, 500=27.46% lat (msec) : 750=0.04% cpu : usr=0.23%, sys=1.50%, ctx=3972, majf=0, minf=15 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=180389: Thu Sep 3 22:50:04 2026 read: IOPS=33, BW=135KiB/s (138kB/s)(5060KiB/37543msec) slat (usec): min=2541, max=91792, avg=16378.25, stdev=10141.42 clat (msec): min=72, max=413, avg=221.01, stdev=57.49 lat (msec): min=87, max=455, avg=237.39, stdev=60.13 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 136], 10.00th=[ 153], 20.00th=[ 174], | 30.00th=[ 190], 40.00th=[ 203], 50.00th=[ 218], 60.00th=[ 232], | 70.00th=[ 247], 80.00th=[ 264], 90.00th=[ 300], 95.00th=[ 330], | 99.00th=[ 380], 99.50th=[ 393], 99.90th=[ 409], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 63, max= 231, per=25.10%, avg=134.04, stdev=35.91, samples=74 iops : min= 15, max= 57, avg=32.96, stdev= 9.04, samples=74 write: IOPS=34, BW=138KiB/s (141kB/s)(5180KiB/37543msec); 0 zone resets slat (usec): min=36, max=16175, avg=260.10, stdev=921.29 clat (msec): min=99, max=463, avg=228.61, stdev=54.55 lat (msec): min=99, max=463, avg=228.88, stdev=54.55 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 148], 10.00th=[ 163], 20.00th=[ 184], | 30.00th=[ 199], 40.00th=[ 209], 50.00th=[ 222], 60.00th=[ 236], | 70.00th=[ 253], 80.00th=[ 271], 90.00th=[ 305], 95.00th=[ 330], | 99.00th=[ 388], 99.50th=[ 405], 99.90th=[ 418], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 47, max= 216, per=24.63%, avg=136.93, stdev=34.18, samples=74 iops : min= 11, max= 54, avg=33.68, stdev= 8.57, samples=74 lat (msec) : 100=0.39%, 250=70.74%, 500=28.87% cpu : usr=0.23%, sys=1.40%, ctx=4506, majf=0, minf=15 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=535KiB/s (547kB/s), 133KiB/s-135KiB/s (136kB/s-138kB/s), io=19.6MiB (20.5MB), run=37290-37543msec WRITE: bw=556KiB/s (570kB/s), 138KiB/s-141KiB/s (141kB/s-144kB/s), io=20.4MiB (21.4MB), run=37290-37543msec 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=180399: Thu Sep 3 22:50:13 2026 read: IOPS=2, BW=95.2MiB/s (99.9MB/s)(40.0MiB/420msec) slat (nsec): min=18065k, max=18065k, avg=18065333.00, stdev= 0.00 clat (nsec): min=388727k, max=388727k, avg=388726894.00, stdev= 0.00 lat (nsec): min=406797k, max=406797k, avg=406796572.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 388], 10.00th=[ 388], 20.00th=[ 388], | 30.00th=[ 388], 40.00th=[ 388], 50.00th=[ 388], 60.00th=[ 388], | 70.00th=[ 388], 80.00th=[ 388], 90.00th=[ 388], 95.00th=[ 388], | 99.00th=[ 388], 99.50th=[ 388], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.86%, ctx=5, majf=0, minf=7 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=95.2MiB/s (99.9MB/s), 95.2MiB/s-95.2MiB/s (99.9MB/s-99.9MB/s), io=40.0MiB (41.9MB), run=420-420msec 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