== sanity test 398c: run fio to test AIO ================= 13:28:15 (1784050095) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.506484 s, 82.8 MB/s osc.lustre-OST0000-osc-ffff8e3d3a5a9800.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=144880: Tue Jul 14 13:30:57 2026 write: IOPS=16, BW=66.3KiB/s (67.8kB/s)(10.0MiB/154562msec); 0 zone resets slat (usec): min=36, max=21565, avg=249.37, stdev=835.51 clat (msec): min=68, max=2507, avg=965.20, stdev=377.22 lat (msec): min=68, max=2507, avg=965.45, stdev=377.21 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 443], 10.00th=[ 535], 20.00th=[ 667], | 30.00th=[ 760], 40.00th=[ 827], 50.00th=[ 902], 60.00th=[ 1003], | 70.00th=[ 1116], 80.00th=[ 1234], 90.00th=[ 1452], 95.00th=[ 1670], | 99.00th=[ 2123], 99.50th=[ 2366], 99.90th=[ 2500], 99.95th=[ 2500], | 99.99th=[ 2500] bw ( KiB/s): min= 7, max= 230, per=25.19%, avg=66.51, stdev=32.76, samples=303 iops : min= 1, max= 57, avg=16.18, stdev= 8.23, samples=303 lat (msec) : 100=0.04%, 250=1.13%, 500=6.21%, 750=21.60%, 1000=30.62% lat (msec) : 2000=38.75%, >=2000=1.64% cpu : usr=0.05%, sys=0.27%, ctx=2188, 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=144881: Tue Jul 14 13:30:57 2026 write: IOPS=16, BW=66.2KiB/s (67.8kB/s)(10.0MiB/154712msec); 0 zone resets slat (usec): min=36, max=16449, avg=251.05, stdev=771.10 clat (msec): min=141, max=2522, avg=965.89, stdev=376.30 lat (msec): min=142, max=2522, avg=966.15, stdev=376.28 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 460], 10.00th=[ 550], 20.00th=[ 676], | 30.00th=[ 751], 40.00th=[ 818], 50.00th=[ 911], 60.00th=[ 1003], | 70.00th=[ 1099], 80.00th=[ 1234], 90.00th=[ 1469], 95.00th=[ 1670], | 99.00th=[ 2198], 99.50th=[ 2400], 99.90th=[ 2500], 99.95th=[ 2500], | 99.99th=[ 2534] bw ( KiB/s): min= 7, max= 207, per=25.72%, avg=67.89, stdev=33.41, samples=297 iops : min= 1, max= 51, avg=16.52, stdev= 8.38, samples=297 lat (msec) : 250=0.59%, 500=6.60%, 750=23.28%, 1000=29.38%, 2000=38.48% lat (msec) : >=2000=1.68% cpu : usr=0.05%, sys=0.27%, ctx=2442, 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=144882: Tue Jul 14 13:30:57 2026 write: IOPS=16, BW=66.3KiB/s (67.9kB/s)(10.0MiB/154408msec); 0 zone resets slat (usec): min=36, max=14718, avg=232.22, stdev=706.30 clat (msec): min=211, max=2514, avg=964.25, stdev=375.44 lat (msec): min=211, max=2514, avg=964.49, stdev=375.44 clat percentiles (msec): | 1.00th=[ 224], 5.00th=[ 443], 10.00th=[ 550], 20.00th=[ 667], | 30.00th=[ 751], 40.00th=[ 827], 50.00th=[ 911], 60.00th=[ 1003], | 70.00th=[ 1116], 80.00th=[ 1234], 90.00th=[ 1418], 95.00th=[ 1653], | 99.00th=[ 2232], 99.50th=[ 2366], 99.90th=[ 2500], 99.95th=[ 2500], | 99.99th=[ 2500] bw ( KiB/s): min= 7, max= 253, per=26.43%, avg=69.76, stdev=34.46, samples=289 iops : min= 1, max= 63, avg=17.00, stdev= 8.63, samples=289 lat (msec) : 250=1.17%, 500=6.45%, 750=22.62%, 1000=29.22%, 2000=38.52% lat (msec) : >=2000=2.03% cpu : usr=0.05%, sys=0.26%, ctx=2244, 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=144883: Tue Jul 14 13:30:57 2026 write: IOPS=16, BW=66.2KiB/s (67.8kB/s)(10.0MiB/154705msec); 0 zone resets slat (usec): min=36, max=24610, avg=288.50, stdev=1057.38 clat (msec): min=125, max=2624, avg=965.99, stdev=373.11 lat (msec): min=125, max=2624, avg=966.28, stdev=373.10 clat percentiles (msec): | 1.00th=[ 347], 5.00th=[ 456], 10.00th=[ 558], 20.00th=[ 676], | 30.00th=[ 760], 40.00th=[ 827], 50.00th=[ 911], 60.00th=[ 1003], | 70.00th=[ 1099], 80.00th=[ 1234], 90.00th=[ 1435], 95.00th=[ 1670], | 99.00th=[ 2232], 99.50th=[ 2299], 99.90th=[ 2601], 99.95th=[ 2635], | 99.99th=[ 2635] bw ( KiB/s): min= 8, max= 255, per=25.90%, avg=68.37, stdev=32.13, samples=295 iops : min= 2, max= 63, avg=16.64, stdev= 8.05, samples=295 lat (msec) : 250=0.43%, 500=6.72%, 750=21.99%, 1000=30.39%, 2000=38.95% lat (msec) : >=2000=1.52% cpu : usr=0.05%, sys=0.32%, ctx=2680, 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 Run status group 0 (all jobs): WRITE: bw=265KiB/s (271kB/s), 66.2KiB/s-66.3KiB/s (67.8kB/s-67.9kB/s), io=40.0MiB (41.9MB), run=154408-154712msec 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=144914: Tue Jul 14 13:32:32 2026 read: IOPS=14, BW=58.1KiB/s (59.5kB/s)(5048KiB/86826msec) slat (usec): min=93, max=45046, avg=12412.36, stdev=6752.49 clat (msec): min=10, max=1162, avg=342.61, stdev=101.67 lat (msec): min=21, max=1177, avg=355.03, stdev=102.39 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 218], 10.00th=[ 241], 20.00th=[ 275], | 30.00th=[ 296], 40.00th=[ 313], 50.00th=[ 330], 60.00th=[ 355], | 70.00th=[ 384], 80.00th=[ 414], 90.00th=[ 456], 95.00th=[ 489], | 99.00th=[ 600], 99.50th=[ 651], 99.90th=[ 1150], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 7, max= 159, per=25.21%, avg=57.98, stdev=25.05, samples=171 iops : min= 1, max= 39, avg=14.02, stdev= 6.27, samples=171 write: IOPS=14, BW=59.8KiB/s (61.2kB/s)(5192KiB/86826msec); 0 zone resets slat (usec): min=45, max=17477, avg=324.15, stdev=1065.87 clat (msec): min=139, max=1525, avg=723.73, stdev=190.27 lat (msec): min=140, max=1525, avg=724.05, stdev=190.25 clat percentiles (msec): | 1.00th=[ 313], 5.00th=[ 435], 10.00th=[ 493], 20.00th=[ 575], | 30.00th=[ 617], 40.00th=[ 659], 50.00th=[ 701], 60.00th=[ 751], | 70.00th=[ 810], 80.00th=[ 877], 90.00th=[ 986], 95.00th=[ 1070], | 99.00th=[ 1183], 99.50th=[ 1284], 99.90th=[ 1485], 99.95th=[ 1519], | 99.99th=[ 1519] bw ( KiB/s): min= 15, max= 111, per=24.91%, avg=59.54, stdev=21.08, samples=171 iops : min= 3, max= 27, avg=14.41, stdev= 5.30, samples=171 lat (msec) : 20=0.08%, 50=0.23%, 100=0.23%, 250=5.98%, 500=45.90% lat (msec) : 750=26.48%, 1000=16.37%, 2000=4.73% cpu : usr=0.08%, sys=0.83%, ctx=5052, 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=144915: Tue Jul 14 13:32:32 2026 read: IOPS=14, BW=57.1KiB/s (58.5kB/s)(4976KiB/87164msec) slat (usec): min=2961, max=50376, avg=12789.42, stdev=7009.25 clat (msec): min=17, max=671, avg=345.64, stdev=87.01 lat (msec): min=26, max=689, avg=358.44, stdev=88.00 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 224], 10.00th=[ 249], 20.00th=[ 279], | 30.00th=[ 300], 40.00th=[ 317], 50.00th=[ 338], 60.00th=[ 359], | 70.00th=[ 384], 80.00th=[ 409], 90.00th=[ 451], 95.00th=[ 506], | 99.00th=[ 600], 99.50th=[ 634], 99.90th=[ 667], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 7, max= 149, per=24.76%, avg=56.96, stdev=23.01, samples=171 iops : min= 1, max= 37, avg=13.76, stdev= 5.77, samples=171 write: IOPS=15, BW=60.4KiB/s (61.8kB/s)(5264KiB/87164msec); 0 zone resets slat (usec): min=38, max=17671, avg=317.28, stdev=937.09 clat (msec): min=208, max=1324, avg=718.43, stdev=180.78 lat (msec): min=208, max=1325, avg=718.75, stdev=180.79 clat percentiles (msec): | 1.00th=[ 338], 5.00th=[ 435], 10.00th=[ 489], 20.00th=[ 567], | 30.00th=[ 617], 40.00th=[ 659], 50.00th=[ 709], 60.00th=[ 760], | 70.00th=[ 810], 80.00th=[ 860], 90.00th=[ 961], 95.00th=[ 1036], | 99.00th=[ 1183], 99.50th=[ 1217], 99.90th=[ 1284], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 15, max= 118, per=25.08%, avg=59.94, stdev=21.22, samples=173 iops : min= 3, max= 29, avg=14.50, stdev= 5.35, samples=173 lat (msec) : 20=0.04%, 50=0.16%, 100=0.20%, 250=4.65%, 500=46.60% lat (msec) : 750=26.72%, 1000=17.81%, 2000=3.83% cpu : usr=0.10%, sys=0.79%, ctx=5066, 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=144916: Tue Jul 14 13:32:32 2026 read: IOPS=14, BW=57.2KiB/s (58.5kB/s)(4984KiB/87168msec) slat (usec): min=2529, max=48406, avg=12689.17, stdev=6953.94 clat (msec): min=12, max=641, avg=344.82, stdev=82.78 lat (msec): min=20, max=650, avg=357.51, stdev=83.75 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 224], 10.00th=[ 249], 20.00th=[ 275], | 30.00th=[ 296], 40.00th=[ 317], 50.00th=[ 342], 60.00th=[ 363], | 70.00th=[ 384], 80.00th=[ 409], 90.00th=[ 447], 95.00th=[ 493], | 99.00th=[ 558], 99.50th=[ 600], 99.90th=[ 634], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 7, max= 143, per=24.65%, avg=56.71, stdev=23.32, samples=173 iops : min= 1, max= 35, avg=13.69, stdev= 5.85, samples=173 write: IOPS=15, BW=60.3KiB/s (61.7kB/s)(5256KiB/87168msec); 0 zone resets slat (usec): min=42, max=25925, avg=328.81, stdev=1103.55 clat (msec): min=104, max=1253, avg=719.07, stdev=185.44 lat (msec): min=106, max=1253, avg=719.40, stdev=185.47 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 443], 10.00th=[ 502], 20.00th=[ 567], | 30.00th=[ 617], 40.00th=[ 659], 50.00th=[ 701], 60.00th=[ 751], | 70.00th=[ 802], 80.00th=[ 869], 90.00th=[ 978], 95.00th=[ 1062], | 99.00th=[ 1133], 99.50th=[ 1167], 99.90th=[ 1217], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 7, max= 135, per=24.91%, avg=59.53, stdev=22.18, samples=173 iops : min= 1, max= 33, avg=14.40, stdev= 5.59, samples=173 lat (msec) : 20=0.04%, 50=0.08%, 100=0.08%, 250=5.16%, 500=46.33% lat (msec) : 750=27.77%, 1000=16.13%, 2000=4.41% cpu : usr=0.09%, sys=0.84%, ctx=4996, 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=144917: Tue Jul 14 13:32:32 2026 read: IOPS=14, BW=58.3KiB/s (59.7kB/s)(5060KiB/86832msec) slat (usec): min=2566, max=46838, avg=12687.15, stdev=7005.04 clat (msec): min=19, max=725, avg=341.11, stdev=86.27 lat (msec): min=38, max=731, avg=353.81, stdev=86.99 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 220], 10.00th=[ 247], 20.00th=[ 275], | 30.00th=[ 296], 40.00th=[ 317], 50.00th=[ 334], 60.00th=[ 355], | 70.00th=[ 380], 80.00th=[ 405], 90.00th=[ 443], 95.00th=[ 485], | 99.00th=[ 600], 99.50th=[ 625], 99.90th=[ 659], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 15, max= 112, per=25.18%, avg=57.91, stdev=22.96, samples=172 iops : min= 3, max= 28, avg=14.00, stdev= 5.76, samples=172 write: IOPS=14, BW=59.7KiB/s (61.1kB/s)(5180KiB/86832msec); 0 zone resets slat (usec): min=42, max=17119, avg=290.00, stdev=798.23 clat (msec): min=284, max=1319, avg=723.86, stdev=181.53 lat (msec): min=285, max=1320, avg=724.15, stdev=181.58 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 451], 10.00th=[ 502], 20.00th=[ 567], | 30.00th=[ 625], 40.00th=[ 659], 50.00th=[ 701], 60.00th=[ 760], | 70.00th=[ 810], 80.00th=[ 877], 90.00th=[ 978], 95.00th=[ 1062], | 99.00th=[ 1167], 99.50th=[ 1183], 99.90th=[ 1284], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 7, max= 127, per=24.68%, avg=58.98, stdev=22.21, samples=172 iops : min= 1, max= 31, avg=14.27, stdev= 5.55, samples=172 lat (msec) : 20=0.04%, 50=0.04%, 100=0.51%, 250=5.00%, 500=46.88% lat (msec) : 750=26.48%, 1000=16.91%, 2000=4.14% cpu : usr=0.10%, sys=0.78%, ctx=4758, 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=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=230KiB/s (236kB/s), 57.1KiB/s-58.3KiB/s (58.5kB/s-59.7kB/s), io=19.6MiB (20.5MB), run=86826-87168msec WRITE: bw=240KiB/s (245kB/s), 59.7KiB/s-60.4KiB/s (61.1kB/s-61.8kB/s), io=20.4MiB (21.4MB), run=86826-87168msec 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=144934: Tue Jul 14 13:32:43 2026 read: IOPS=1, BW=50.4MiB/s (52.8MB/s)(40.0MiB/794msec) slat (nsec): min=58114k, max=58114k, avg=58113621.00, stdev= 0.00 clat (nsec): min=710348k, max=710348k, avg=710347606.00, stdev= 0.00 lat (nsec): min=768467k, max=768467k, avg=768466546.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 709], 5.00th=[ 709], 10.00th=[ 709], 20.00th=[ 709], | 30.00th=[ 709], 40.00th=[ 709], 50.00th=[ 709], 60.00th=[ 709], | 70.00th=[ 709], 80.00th=[ 709], 90.00th=[ 709], 95.00th=[ 709], | 99.00th=[ 709], 99.50th=[ 709], 99.90th=[ 709], 99.95th=[ 709], | 99.99th=[ 709] lat (msec) : 750=100.00% cpu : usr=0.13%, sys=2.14%, ctx=22, 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=50.4MiB/s (52.8MB/s), 50.4MiB/s-50.4MiB/s (52.8MB/s-52.8MB/s), io=40.0MiB (41.9MB), run=794-794msec 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