== sanity test 398c: run fio to test AIO ================= 20:17:45 (1788567465) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.478534 s, 87.6 MB/s osc.lustre-OST0000-osc-ffff9c2543006000.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=180376: Fri Sep 4 20:18:26 2026 write: IOPS=79, BW=319KiB/s (327kB/s)(10.0MiB/32076msec); 0 zone resets slat (usec): min=22, max=13869, avg=185.02, stdev=691.26 clat (msec): min=28, max=350, avg=199.49, stdev=57.76 lat (msec): min=28, max=351, avg=199.68, stdev=57.75 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 116], 10.00th=[ 131], 20.00th=[ 146], | 30.00th=[ 161], 40.00th=[ 178], 50.00th=[ 192], 60.00th=[ 211], | 70.00th=[ 234], 80.00th=[ 251], 90.00th=[ 279], 95.00th=[ 305], | 99.00th=[ 338], 99.50th=[ 338], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 351] bw ( KiB/s): min= 215, max= 526, per=24.93%, avg=318.05, stdev=75.32, samples=63 iops : min= 53, max= 131, avg=79.13, stdev=18.87, samples=63 lat (msec) : 50=0.20%, 100=1.25%, 250=77.93%, 500=20.62% cpu : usr=0.17%, sys=0.70%, ctx=2334, 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=180377: Fri Sep 4 20:18:26 2026 write: IOPS=79, BW=320KiB/s (327kB/s)(10.0MiB/32049msec); 0 zone resets slat (usec): min=22, max=26692, avg=216.74, stdev=929.29 clat (msec): min=18, max=354, avg=199.84, stdev=58.76 lat (msec): min=19, max=355, avg=200.06, stdev=58.73 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 117], 10.00th=[ 129], 20.00th=[ 146], | 30.00th=[ 161], 40.00th=[ 178], 50.00th=[ 194], 60.00th=[ 211], | 70.00th=[ 234], 80.00th=[ 253], 90.00th=[ 284], 95.00th=[ 309], | 99.00th=[ 338], 99.50th=[ 347], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 176, max= 526, per=24.99%, avg=318.84, stdev=75.57, samples=63 iops : min= 44, max= 131, avg=79.33, stdev=18.93, samples=63 lat (msec) : 20=0.04%, 50=0.12%, 100=1.72%, 250=76.52%, 500=21.60% cpu : usr=0.15%, sys=0.79%, ctx=2274, 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=180378: Fri Sep 4 20:18:26 2026 write: IOPS=79, BW=320KiB/s (327kB/s)(10.0MiB/32036msec); 0 zone resets slat (usec): min=21, max=15182, avg=204.95, stdev=846.48 clat (msec): min=19, max=394, avg=199.08, stdev=58.56 lat (msec): min=19, max=394, avg=199.29, stdev=58.59 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 114], 10.00th=[ 129], 20.00th=[ 146], | 30.00th=[ 161], 40.00th=[ 178], 50.00th=[ 197], 60.00th=[ 207], | 70.00th=[ 228], 80.00th=[ 253], 90.00th=[ 284], 95.00th=[ 305], | 99.00th=[ 338], 99.50th=[ 347], 99.90th=[ 380], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 160, max= 526, per=24.96%, avg=318.43, stdev=86.71, samples=63 iops : min= 40, max= 131, avg=79.22, stdev=21.70, samples=63 lat (msec) : 20=0.04%, 50=0.12%, 100=1.80%, 250=77.27%, 500=20.78% cpu : usr=0.17%, sys=0.87%, ctx=2375, 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=180379: Fri Sep 4 20:18:26 2026 write: IOPS=79, BW=319KiB/s (327kB/s)(10.0MiB/32086msec); 0 zone resets slat (usec): min=25, max=16552, avg=191.86, stdev=786.09 clat (msec): min=24, max=382, avg=199.29, stdev=58.88 lat (msec): min=24, max=382, avg=199.48, stdev=58.89 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 115], 10.00th=[ 129], 20.00th=[ 148], | 30.00th=[ 163], 40.00th=[ 178], 50.00th=[ 190], 60.00th=[ 209], | 70.00th=[ 234], 80.00th=[ 255], 90.00th=[ 284], 95.00th=[ 300], | 99.00th=[ 338], 99.50th=[ 347], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 127, max= 526, per=24.81%, avg=316.54, stdev=84.83, samples=63 iops : min= 31, max= 131, avg=78.76, stdev=21.23, samples=63 lat (msec) : 50=0.35%, 100=1.88%, 250=76.13%, 500=21.64% cpu : usr=0.11%, sys=0.74%, ctx=2204, 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 Run status group 0 (all jobs): WRITE: bw=1277KiB/s (1307kB/s), 319KiB/s-320KiB/s (327kB/s-327kB/s), io=40.0MiB (41.9MB), run=32036-32086msec 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=180394: Fri Sep 4 20:19:04 2026 read: IOPS=41, BW=165KiB/s (169kB/s)(5048KiB/30640msec) slat (usec): min=27, max=73291, avg=13297.26, stdev=8380.33 clat (msec): min=34, max=365, avg=182.41, stdev=49.01 lat (msec): min=34, max=386, avg=195.71, stdev=51.18 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 113], 10.00th=[ 127], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 165], 50.00th=[ 178], 60.00th=[ 190], | 70.00th=[ 203], 80.00th=[ 220], 90.00th=[ 247], 95.00th=[ 268], | 99.00th=[ 330], 99.50th=[ 342], 99.90th=[ 359], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 87, max= 224, per=25.42%, avg=164.22, stdev=32.44, samples=60 iops : min= 21, max= 56, avg=40.63, stdev= 8.17, samples=60 write: IOPS=42, BW=169KiB/s (174kB/s)(5192KiB/30640msec); 0 zone resets slat (usec): min=25, max=25423, avg=230.97, stdev=1052.54 clat (msec): min=48, max=350, avg=186.80, stdev=44.21 lat (msec): min=48, max=350, avg=187.04, stdev=44.25 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 120], 10.00th=[ 133], 20.00th=[ 150], | 30.00th=[ 161], 40.00th=[ 171], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 209], 80.00th=[ 222], 90.00th=[ 243], 95.00th=[ 264], | 99.00th=[ 313], 99.50th=[ 326], 99.90th=[ 338], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 95, max= 248, per=25.23%, avg=169.52, stdev=39.17, samples=60 iops : min= 23, max= 62, avg=41.92, stdev= 9.78, samples=60 lat (msec) : 50=0.20%, 100=1.33%, 250=89.73%, 500=8.75% cpu : usr=0.26%, sys=1.69%, ctx=4277, 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=180395: Fri Sep 4 20:19:04 2026 read: IOPS=40, BW=162KiB/s (166kB/s)(4976KiB/30748msec) slat (usec): min=2279, max=62789, avg=13269.63, stdev=7644.46 clat (msec): min=80, max=378, avg=182.57, stdev=46.89 lat (msec): min=90, max=397, avg=195.84, stdev=48.46 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 116], 10.00th=[ 127], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 167], 50.00th=[ 178], 60.00th=[ 188], | 70.00th=[ 203], 80.00th=[ 218], 90.00th=[ 243], 95.00th=[ 266], | 99.00th=[ 326], 99.50th=[ 342], 99.90th=[ 368], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 37, max= 247, per=24.89%, avg=160.77, stdev=38.61, samples=61 iops : min= 9, max= 61, avg=39.72, stdev= 9.60, samples=61 write: IOPS=42, BW=171KiB/s (175kB/s)(5264KiB/30748msec); 0 zone resets slat (usec): min=31, max=20741, avg=211.17, stdev=914.55 clat (msec): min=85, max=429, avg=185.51, stdev=46.29 lat (msec): min=85, max=429, avg=185.72, stdev=46.28 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 122], 10.00th=[ 132], 20.00th=[ 148], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 190], | 70.00th=[ 205], 80.00th=[ 222], 90.00th=[ 245], 95.00th=[ 271], | 99.00th=[ 321], 99.50th=[ 347], 99.90th=[ 405], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 87, max= 262, per=25.39%, avg=170.59, stdev=41.77, samples=61 iops : min= 21, max= 65, avg=42.21, stdev=10.47, samples=61 lat (msec) : 100=1.41%, 250=90.31%, 500=8.28% cpu : usr=0.24%, sys=1.63%, ctx=4218, 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=180396: Fri Sep 4 20:19:04 2026 read: IOPS=40, BW=161KiB/s (164kB/s)(4984KiB/31044msec) slat (usec): min=32, max=203270, avg=13642.93, stdev=13062.17 clat (msec): min=29, max=999, avg=185.60, stdev=84.99 lat (msec): min=33, max=1024, avg=199.25, stdev=88.28 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 112], 10.00th=[ 126], 20.00th=[ 140], | 30.00th=[ 153], 40.00th=[ 165], 50.00th=[ 176], 60.00th=[ 186], | 70.00th=[ 199], 80.00th=[ 215], 90.00th=[ 243], 95.00th=[ 275], | 99.00th=[ 550], 99.50th=[ 944], 99.90th=[ 986], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 23, max= 240, per=24.61%, avg=158.95, stdev=44.16, samples=61 iops : min= 5, max= 60, avg=39.28, stdev=11.07, samples=61 write: IOPS=42, BW=169KiB/s (173kB/s)(5256KiB/31044msec); 0 zone resets slat (usec): min=24, max=12858, avg=214.31, stdev=765.68 clat (msec): min=37, max=949, avg=186.54, stdev=58.55 lat (msec): min=37, max=949, avg=186.76, stdev=58.57 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 116], 10.00th=[ 131], 20.00th=[ 146], | 30.00th=[ 161], 40.00th=[ 171], 50.00th=[ 182], 60.00th=[ 194], | 70.00th=[ 207], 80.00th=[ 220], 90.00th=[ 245], 95.00th=[ 271], | 99.00th=[ 321], 99.50th=[ 334], 99.90th=[ 944], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 71, max= 253, per=25.17%, avg=169.13, stdev=38.25, samples=60 iops : min= 17, max= 63, avg=41.85, stdev= 9.55, samples=60 lat (msec) : 50=0.35%, 100=2.03%, 250=89.65%, 500=7.34%, 750=0.12% lat (msec) : 1000=0.51% cpu : usr=0.21%, sys=1.74%, ctx=4292, 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=180397: Fri Sep 4 20:19:04 2026 read: IOPS=41, BW=164KiB/s (168kB/s)(5060KiB/30795msec) slat (usec): min=2290, max=58085, avg=13130.46, stdev=7680.22 clat (msec): min=32, max=352, avg=180.73, stdev=47.05 lat (msec): min=41, max=363, avg=193.88, stdev=48.43 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 112], 10.00th=[ 127], 20.00th=[ 140], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 178], 60.00th=[ 188], | 70.00th=[ 201], 80.00th=[ 215], 90.00th=[ 245], 95.00th=[ 268], | 99.00th=[ 326], 99.50th=[ 330], 99.90th=[ 342], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 53, max= 255, per=25.34%, avg=163.72, stdev=39.94, samples=61 iops : min= 13, max= 63, avg=40.49, stdev= 9.98, samples=61 write: IOPS=42, BW=168KiB/s (172kB/s)(5180KiB/30795msec); 0 zone resets slat (usec): min=32, max=12007, avg=197.24, stdev=598.20 clat (msec): min=85, max=358, avg=187.71, stdev=44.32 lat (msec): min=85, max=359, avg=187.91, stdev=44.32 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 120], 10.00th=[ 131], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 176], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 209], 80.00th=[ 224], 90.00th=[ 249], 95.00th=[ 264], | 99.00th=[ 309], 99.50th=[ 321], 99.90th=[ 342], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 84, max= 247, per=24.93%, avg=167.54, stdev=35.94, samples=61 iops : min= 21, max= 61, avg=41.44, stdev= 9.00, samples=61 lat (msec) : 50=0.04%, 100=1.37%, 250=90.08%, 500=8.52% cpu : usr=0.27%, sys=1.57%, ctx=4334, 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=646KiB/s (662kB/s), 161KiB/s-165KiB/s (164kB/s-169kB/s), io=19.6MiB (20.5MB), run=30640-31044msec WRITE: bw=673KiB/s (689kB/s), 168KiB/s-171KiB/s (172kB/s-175kB/s), io=20.4MiB (21.4MB), run=30640-31044msec 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=180406: Fri Sep 4 20:19:16 2026 read: IOPS=1, BW=45.0MiB/s (48.2MB/s)(40.0MiB/870msec) slat (nsec): min=61129k, max=61129k, avg=61128833.00, stdev= 0.00 clat (nsec): min=779439k, max=779439k, avg=779438955.00, stdev= 0.00 lat (nsec): min=840572k, max=840572k, avg=840571923.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 776], 5.00th=[ 776], 10.00th=[ 776], 20.00th=[ 776], | 30.00th=[ 776], 40.00th=[ 776], 50.00th=[ 776], 60.00th=[ 776], | 70.00th=[ 776], 80.00th=[ 776], 90.00th=[ 776], 95.00th=[ 776], | 99.00th=[ 776], 99.50th=[ 776], 99.90th=[ 776], 99.95th=[ 776], | 99.99th=[ 776] lat (msec) : 1000=100.00% cpu : usr=0.00%, sys=1.73%, ctx=6, 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=45.0MiB/s (48.2MB/s), 45.0MiB/s-45.0MiB/s (48.2MB/s-48.2MB/s), io=40.0MiB (41.9MB), run=870-870msec 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