== sanity test 398c: run fio to test AIO ================= 21:26:38 (1789608398) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.447094 s, 93.8 MB/s osc.lustre-OST0000-osc-ffff9cbf5535e000.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=180799: Wed Sep 16 21:27:11 2026 write: IOPS=106, BW=424KiB/s (434kB/s)(10.0MiB/24144msec); 0 zone resets slat (usec): min=28, max=10710, avg=161.60, stdev=504.27 clat (msec): min=16, max=292, avg=150.27, stdev=32.27 lat (msec): min=17, max=292, avg=150.43, stdev=32.26 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 107], 10.00th=[ 116], 20.00th=[ 124], | 30.00th=[ 132], 40.00th=[ 140], 50.00th=[ 148], 60.00th=[ 157], | 70.00th=[ 165], 80.00th=[ 176], 90.00th=[ 188], 95.00th=[ 201], | 99.00th=[ 259], 99.50th=[ 271], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 263, max= 636, per=24.93%, avg=421.77, stdev=70.56, samples=48 iops : min= 65, max= 159, avg=105.10, stdev=17.71, samples=48 lat (msec) : 20=0.04%, 50=0.08%, 100=2.34%, 250=96.21%, 500=1.33% cpu : usr=0.17%, sys=0.84%, ctx=2622, 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=180800: Wed Sep 16 21:27:11 2026 write: IOPS=105, BW=423KiB/s (434kB/s)(10.0MiB/24180msec); 0 zone resets slat (usec): min=27, max=7377, avg=125.73, stdev=357.27 clat (msec): min=82, max=304, avg=150.82, stdev=29.92 lat (msec): min=82, max=305, avg=150.95, stdev=29.92 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 111], 10.00th=[ 118], 20.00th=[ 126], | 30.00th=[ 134], 40.00th=[ 140], 50.00th=[ 146], 60.00th=[ 155], | 70.00th=[ 165], 80.00th=[ 176], 90.00th=[ 186], 95.00th=[ 207], | 99.00th=[ 239], 99.50th=[ 262], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 305] bw ( KiB/s): min= 253, max= 512, per=24.93%, avg=421.85, stdev=67.39, samples=48 iops : min= 63, max= 128, avg=105.13, stdev=16.93, samples=48 lat (msec) : 100=2.23%, 250=96.99%, 500=0.78% cpu : usr=0.12%, sys=0.72%, ctx=1380, 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=180801: Wed Sep 16 21:27:11 2026 write: IOPS=105, BW=423KiB/s (433kB/s)(10.0MiB/24194msec); 0 zone resets slat (usec): min=28, max=11055, avg=166.93, stdev=520.80 clat (msec): min=24, max=270, avg=150.41, stdev=30.33 lat (msec): min=24, max=270, avg=150.58, stdev=30.33 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 109], 10.00th=[ 117], 20.00th=[ 125], | 30.00th=[ 132], 40.00th=[ 142], 50.00th=[ 150], 60.00th=[ 159], | 70.00th=[ 163], 80.00th=[ 174], 90.00th=[ 186], 95.00th=[ 199], | 99.00th=[ 241], 99.50th=[ 271], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 337, max= 512, per=24.93%, avg=421.83, stdev=53.28, samples=48 iops : min= 84, max= 128, avg=105.13, stdev=13.35, samples=48 lat (msec) : 50=0.04%, 100=2.38%, 250=96.72%, 500=0.86% cpu : usr=0.22%, sys=0.88%, ctx=2445, 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=180802: Wed Sep 16 21:27:11 2026 write: IOPS=105, BW=423KiB/s (433kB/s)(10.0MiB/24200msec); 0 zone resets slat (usec): min=29, max=8804, avg=174.69, stdev=536.45 clat (msec): min=16, max=299, avg=150.53, stdev=32.50 lat (msec): min=17, max=299, avg=150.71, stdev=32.48 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 106], 10.00th=[ 116], 20.00th=[ 126], | 30.00th=[ 134], 40.00th=[ 140], 50.00th=[ 148], 60.00th=[ 155], | 70.00th=[ 165], 80.00th=[ 174], 90.00th=[ 186], 95.00th=[ 201], | 99.00th=[ 271], 99.50th=[ 296], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 263, max= 524, per=24.93%, avg=421.81, stdev=65.16, samples=48 iops : min= 65, max= 131, avg=105.13, stdev=16.34, samples=48 lat (msec) : 20=0.04%, 50=0.08%, 100=2.77%, 250=95.51%, 500=1.60% cpu : usr=0.16%, sys=0.87%, ctx=2146, 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=1693KiB/s (1733kB/s), 423KiB/s-424KiB/s (433kB/s-434kB/s), io=40.0MiB (41.9MB), run=24144-24200msec 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=180815: Wed Sep 16 21:27:51 2026 read: IOPS=39, BW=157KiB/s (160kB/s)(5048KiB/32245msec) slat (usec): min=2394, max=71992, avg=13863.96, stdev=7919.40 clat (msec): min=24, max=401, avg=189.65, stdev=52.13 lat (msec): min=37, max=415, avg=203.52, stdev=54.37 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 112], 10.00th=[ 129], 20.00th=[ 146], | 30.00th=[ 161], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 199], | 70.00th=[ 213], 80.00th=[ 234], 90.00th=[ 257], 95.00th=[ 279], | 99.00th=[ 342], 99.50th=[ 372], 99.90th=[ 384], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 87, max= 255, per=24.97%, avg=155.30, stdev=41.21, samples=63 iops : min= 21, max= 63, avg=38.41, stdev=10.28, samples=63 write: IOPS=40, BW=161KiB/s (165kB/s)(5192KiB/32245msec); 0 zone resets slat (usec): min=31, max=19666, avg=217.95, stdev=810.39 clat (msec): min=47, max=377, avg=197.54, stdev=48.42 lat (msec): min=47, max=377, avg=197.76, stdev=48.45 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 124], 10.00th=[ 140], 20.00th=[ 157], | 30.00th=[ 169], 40.00th=[ 182], 50.00th=[ 194], 60.00th=[ 207], | 70.00th=[ 222], 80.00th=[ 239], 90.00th=[ 264], 95.00th=[ 284], | 99.00th=[ 326], 99.50th=[ 338], 99.90th=[ 363], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 87, max= 256, per=24.84%, avg=160.68, stdev=37.73, samples=63 iops : min= 21, max= 64, avg=39.75, stdev= 9.46, samples=63 lat (msec) : 50=0.12%, 100=1.37%, 250=85.04%, 500=13.48% cpu : usr=0.19%, sys=1.57%, ctx=3917, 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=180816: Wed Sep 16 21:27:51 2026 read: IOPS=38, BW=154KiB/s (158kB/s)(4976KiB/32238msec) slat (usec): min=2899, max=77907, avg=13920.02, stdev=8402.98 clat (msec): min=14, max=393, avg=190.04, stdev=49.77 lat (msec): min=26, max=408, avg=203.97, stdev=51.92 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 115], 10.00th=[ 129], 20.00th=[ 148], | 30.00th=[ 161], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 199], | 70.00th=[ 215], 80.00th=[ 232], 90.00th=[ 255], 95.00th=[ 275], | 99.00th=[ 317], 99.50th=[ 330], 99.90th=[ 380], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 64, max= 256, per=24.65%, avg=153.35, stdev=40.43, samples=63 iops : min= 16, max= 64, avg=37.94, stdev=10.11, samples=63 write: IOPS=40, BW=163KiB/s (167kB/s)(5264KiB/32238msec); 0 zone resets slat (usec): min=28, max=11575, avg=187.48, stdev=561.72 clat (msec): min=60, max=384, avg=197.30, stdev=51.13 lat (msec): min=60, max=384, avg=197.49, stdev=51.17 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 121], 10.00th=[ 134], 20.00th=[ 153], | 30.00th=[ 167], 40.00th=[ 182], 50.00th=[ 194], 60.00th=[ 209], | 70.00th=[ 222], 80.00th=[ 241], 90.00th=[ 268], 95.00th=[ 288], | 99.00th=[ 321], 99.50th=[ 342], 99.90th=[ 368], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 80, max= 304, per=25.20%, avg=163.03, stdev=41.66, samples=63 iops : min= 20, max= 76, avg=40.35, stdev=10.42, samples=63 lat (msec) : 20=0.04%, 50=0.04%, 100=1.48%, 250=84.45%, 500=13.98% cpu : usr=0.21%, sys=1.61%, ctx=4409, 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=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=180817: Wed Sep 16 21:27:51 2026 read: IOPS=38, BW=155KiB/s (159kB/s)(4984KiB/32154msec) slat (usec): min=2638, max=56673, avg=13833.03, stdev=8015.19 clat (msec): min=40, max=357, avg=189.81, stdev=50.44 lat (msec): min=49, max=379, avg=203.64, stdev=52.53 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 114], 10.00th=[ 129], 20.00th=[ 148], | 30.00th=[ 161], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 199], | 70.00th=[ 211], 80.00th=[ 232], 90.00th=[ 257], 95.00th=[ 284], | 99.00th=[ 326], 99.50th=[ 338], 99.90th=[ 355], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 87, max= 280, per=25.00%, avg=155.52, stdev=41.78, samples=63 iops : min= 21, max= 70, avg=38.44, stdev=10.45, samples=63 write: IOPS=40, BW=163KiB/s (167kB/s)(5256KiB/32154msec); 0 zone resets slat (usec): min=31, max=14256, avg=228.19, stdev=694.04 clat (msec): min=87, max=404, avg=196.57, stdev=48.34 lat (msec): min=87, max=404, avg=196.80, stdev=48.35 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 123], 10.00th=[ 134], 20.00th=[ 155], | 30.00th=[ 169], 40.00th=[ 182], 50.00th=[ 197], 60.00th=[ 209], | 70.00th=[ 220], 80.00th=[ 234], 90.00th=[ 259], 95.00th=[ 279], | 99.00th=[ 326], 99.50th=[ 338], 99.90th=[ 393], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 79, max= 272, per=25.18%, avg=162.90, stdev=41.40, samples=63 iops : min= 19, max= 68, avg=40.33, stdev=10.35, samples=63 lat (msec) : 50=0.08%, 100=1.41%, 250=85.74%, 500=12.77% cpu : usr=0.20%, sys=1.47%, ctx=4201, 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=180818: Wed Sep 16 21:27:51 2026 read: IOPS=39, BW=158KiB/s (161kB/s)(5060KiB/32089msec) slat (usec): min=52, max=74894, avg=13766.30, stdev=8119.56 clat (msec): min=20, max=429, avg=189.24, stdev=54.03 lat (msec): min=25, max=442, avg=203.02, stdev=56.39 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 111], 10.00th=[ 127], 20.00th=[ 144], | 30.00th=[ 159], 40.00th=[ 174], 50.00th=[ 186], 60.00th=[ 199], | 70.00th=[ 213], 80.00th=[ 230], 90.00th=[ 262], 95.00th=[ 284], | 99.00th=[ 347], 99.50th=[ 355], 99.90th=[ 393], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 79, max= 240, per=25.39%, avg=157.95, stdev=40.38, samples=63 iops : min= 19, max= 60, avg=39.06, stdev=10.12, samples=63 write: IOPS=40, BW=161KiB/s (165kB/s)(5180KiB/32089msec); 0 zone resets slat (usec): min=33, max=23498, avg=214.75, stdev=834.56 clat (msec): min=70, max=470, avg=197.37, stdev=50.57 lat (msec): min=70, max=470, avg=197.59, stdev=50.58 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 122], 10.00th=[ 138], 20.00th=[ 157], | 30.00th=[ 169], 40.00th=[ 182], 50.00th=[ 194], 60.00th=[ 207], | 70.00th=[ 222], 80.00th=[ 239], 90.00th=[ 266], 95.00th=[ 288], | 99.00th=[ 330], 99.50th=[ 342], 99.90th=[ 443], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 64, max= 248, per=24.91%, avg=161.14, stdev=39.88, samples=63 iops : min= 16, max= 62, avg=39.86, stdev= 9.96, samples=63 lat (msec) : 50=0.27%, 100=1.88%, 250=84.38%, 500=13.48% cpu : usr=0.21%, sys=1.63%, ctx=4345, 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=622KiB/s (637kB/s), 154KiB/s-158KiB/s (158kB/s-161kB/s), io=19.6MiB (20.5MB), run=32089-32245msec WRITE: bw=648KiB/s (663kB/s), 161KiB/s-163KiB/s (165kB/s-167kB/s), io=20.4MiB (21.4MB), run=32089-32245msec 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=180827: Wed Sep 16 21:28:01 2026 read: IOPS=1, BW=61.1MiB/s (64.0MB/s)(40.0MiB/655msec) slat (nsec): min=39349k, max=39349k, avg=39349315.00, stdev= 0.00 clat (nsec): min=595190k, max=595190k, avg=595190295.00, stdev= 0.00 lat (nsec): min=634545k, max=634545k, avg=634545075.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 592], 5.00th=[ 592], 10.00th=[ 592], 20.00th=[ 592], | 30.00th=[ 592], 40.00th=[ 592], 50.00th=[ 592], 60.00th=[ 592], | 70.00th=[ 592], 80.00th=[ 592], 90.00th=[ 592], 95.00th=[ 592], | 99.00th=[ 592], 99.50th=[ 592], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=0.76%, ctx=6, 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=61.1MiB/s (64.0MB/s), 61.1MiB/s-61.1MiB/s (64.0MB/s-64.0MB/s), io=40.0MiB (41.9MB), run=655-655msec 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