== sanity test 398c: run fio to test AIO ================= 16:28:14 (1786652894) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.799756 s, 52.4 MB/s osc.lustre-OST0000-osc-ffff8c71404ed000.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=144679: Thu Aug 13 16:31:26 2026 write: IOPS=14, BW=56.0KiB/s (58.3kB/s)(10.0MiB/179738msec); 0 zone resets slat (usec): min=42, max=22366, avg=420.13, stdev=1329.87 clat (msec): min=300, max=2157, avg=1121.79, stdev=326.24 lat (msec): min=300, max=2157, avg=1122.21, stdev=326.24 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 676], 10.00th=[ 760], 20.00th=[ 860], | 30.00th=[ 936], 40.00th=[ 1011], 50.00th=[ 1083], 60.00th=[ 1150], | 70.00th=[ 1250], 80.00th=[ 1385], 90.00th=[ 1603], 95.00th=[ 1720], | 99.00th=[ 1955], 99.50th=[ 2022], 99.90th=[ 2123], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 7, max= 128, per=24.99%, avg=56.73, stdev=26.17, samples=354 iops : min= 1, max= 32, avg=13.65, stdev= 6.56, samples=354 lat (msec) : 500=2.15%, 750=7.38%, 1000=28.63%, 2000=61.29%, >=2000=0.55% cpu : usr=0.05%, sys=0.30%, ctx=1941, 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=144680: Thu Aug 13 16:31:26 2026 write: IOPS=14, BW=56.0KiB/s (58.3kB/s)(10.0MiB/179736msec); 0 zone resets slat (usec): min=38, max=35536, avg=411.73, stdev=1573.97 clat (msec): min=296, max=2185, avg=1121.53, stdev=329.01 lat (msec): min=296, max=2185, avg=1121.94, stdev=329.05 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 667], 10.00th=[ 768], 20.00th=[ 860], | 30.00th=[ 944], 40.00th=[ 1011], 50.00th=[ 1083], 60.00th=[ 1167], | 70.00th=[ 1250], 80.00th=[ 1385], 90.00th=[ 1586], 95.00th=[ 1720], | 99.00th=[ 1972], 99.50th=[ 2056], 99.90th=[ 2089], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 151, per=25.72%, avg=58.38, stdev=32.83, samples=344 iops : min= 1, max= 37, avg=14.07, stdev= 8.22, samples=344 lat (msec) : 500=2.70%, 750=6.25%, 1000=28.75%, 2000=61.48%, >=2000=0.82% cpu : usr=0.04%, sys=0.30%, ctx=1936, 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=144681: Thu Aug 13 16:31:26 2026 write: IOPS=14, BW=56.0KiB/s (58.3kB/s)(10.0MiB/179730msec); 0 zone resets slat (usec): min=37, max=25624, avg=393.23, stdev=1306.85 clat (msec): min=299, max=2199, avg=1121.73, stdev=328.58 lat (msec): min=299, max=2199, avg=1122.12, stdev=328.62 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 667], 10.00th=[ 768], 20.00th=[ 860], | 30.00th=[ 936], 40.00th=[ 1003], 50.00th=[ 1070], 60.00th=[ 1150], | 70.00th=[ 1267], 80.00th=[ 1401], 90.00th=[ 1586], 95.00th=[ 1737], | 99.00th=[ 1972], 99.50th=[ 2039], 99.90th=[ 2165], 99.95th=[ 2165], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 128, per=25.42%, avg=57.70, stdev=29.57, samples=348 iops : min= 1, max= 32, avg=13.89, stdev= 7.41, samples=348 lat (msec) : 500=2.11%, 750=6.56%, 1000=31.41%, 2000=59.18%, >=2000=0.74% cpu : usr=0.06%, sys=0.31%, ctx=1851, 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=144682: Thu Aug 13 16:31:26 2026 write: IOPS=14, BW=57.0KiB/s (58.4kB/s)(10.0MiB/179528msec); 0 zone resets slat (usec): min=37, max=22839, avg=391.99, stdev=1449.13 clat (msec): min=76, max=2082, avg=1121.13, stdev=332.95 lat (msec): min=76, max=2082, avg=1121.52, stdev=332.97 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 659], 10.00th=[ 751], 20.00th=[ 852], | 30.00th=[ 936], 40.00th=[ 1011], 50.00th=[ 1083], 60.00th=[ 1150], | 70.00th=[ 1267], 80.00th=[ 1385], 90.00th=[ 1603], 95.00th=[ 1754], | 99.00th=[ 1938], 99.50th=[ 2022], 99.90th=[ 2072], 99.95th=[ 2072], | 99.99th=[ 2089] bw ( KiB/s): min= 7, max= 224, per=25.43%, avg=57.72, stdev=28.83, samples=348 iops : min= 1, max= 56, avg=13.91, stdev= 7.23, samples=348 lat (msec) : 100=0.12%, 250=0.23%, 500=2.11%, 750=7.54%, 1000=28.71% lat (msec) : 2000=60.70%, >=2000=0.59% cpu : usr=0.05%, sys=0.32%, ctx=1948, 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=228KiB/s (233kB/s), 56.0KiB/s-57.0KiB/s (58.3kB/s-58.4kB/s), io=40.0MiB (41.9MB), run=179528-179738msec 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=144718: Thu Aug 13 16:33:46 2026 read: IOPS=9, BW=39.7KiB/s (40.7kB/s)(5048KiB/127137msec) slat (usec): min=3557, max=77029, avg=17936.51, stdev=9875.92 clat (msec): min=20, max=1010, avg=488.48, stdev=136.44 lat (msec): min=36, max=1038, avg=506.42, stdev=138.16 clat percentiles (msec): | 1.00th=[ 228], 5.00th=[ 317], 10.00th=[ 347], 20.00th=[ 380], | 30.00th=[ 409], 40.00th=[ 435], 50.00th=[ 468], 60.00th=[ 502], | 70.00th=[ 542], 80.00th=[ 592], 90.00th=[ 667], 95.00th=[ 751], | 99.00th=[ 894], 99.50th=[ 936], 99.90th=[ 978], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 7, max= 96, per=25.50%, avg=40.03, stdev=19.23, samples=246 iops : min= 1, max= 24, avg= 9.47, stdev= 4.81, samples=246 write: IOPS=10, BW=40.8KiB/s (41.8kB/s)(5192KiB/127137msec); 0 zone resets slat (usec): min=56, max=19109, avg=609.97, stdev=1659.76 clat (msec): min=304, max=2215, avg=1071.28, stdev=295.15 lat (msec): min=304, max=2216, avg=1071.90, stdev=295.24 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 600], 10.00th=[ 718], 20.00th=[ 835], | 30.00th=[ 911], 40.00th=[ 995], 50.00th=[ 1062], 60.00th=[ 1133], | 70.00th=[ 1200], 80.00th=[ 1284], 90.00th=[ 1435], 95.00th=[ 1603], | 99.00th=[ 2022], 99.50th=[ 2106], 99.90th=[ 2165], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 7, max= 104, per=24.90%, avg=40.84, stdev=18.51, samples=248 iops : min= 1, max= 26, avg= 9.67, stdev= 4.65, samples=248 lat (msec) : 50=0.08%, 100=0.23%, 250=0.43%, 500=29.92%, 750=21.95% lat (msec) : 1000=17.73%, 2000=29.14%, >=2000=0.51% cpu : usr=0.11%, sys=0.82%, ctx=4772, 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=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=144719: Thu Aug 13 16:33:46 2026 read: IOPS=9, BW=39.1KiB/s (40.1kB/s)(4976KiB/127182msec) slat (usec): min=3206, max=66006, avg=17592.78, stdev=9656.35 clat (msec): min=19, max=1033, avg=484.29, stdev=138.15 lat (msec): min=42, max=1063, avg=501.89, stdev=139.50 clat percentiles (msec): | 1.00th=[ 215], 5.00th=[ 309], 10.00th=[ 342], 20.00th=[ 380], | 30.00th=[ 409], 40.00th=[ 435], 50.00th=[ 464], 60.00th=[ 493], | 70.00th=[ 531], 80.00th=[ 575], 90.00th=[ 676], 95.00th=[ 751], | 99.00th=[ 894], 99.50th=[ 953], 99.90th=[ 995], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 7, max= 95, per=24.84%, avg=38.99, stdev=19.43, samples=248 iops : min= 1, max= 23, avg= 9.22, stdev= 4.89, samples=248 write: IOPS=10, BW=41.4KiB/s (42.4kB/s)(5264KiB/127182msec); 0 zone resets slat (usec): min=55, max=19810, avg=500.77, stdev=1258.53 clat (msec): min=292, max=2178, avg=1068.74, stdev=299.81 lat (msec): min=292, max=2179, avg=1069.24, stdev=299.86 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 575], 10.00th=[ 709], 20.00th=[ 827], | 30.00th=[ 911], 40.00th=[ 986], 50.00th=[ 1062], 60.00th=[ 1133], | 70.00th=[ 1200], 80.00th=[ 1301], 90.00th=[ 1435], 95.00th=[ 1586], | 99.00th=[ 2039], 99.50th=[ 2140], 99.90th=[ 2165], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 7, max= 127, per=24.98%, avg=40.97, stdev=19.27, samples=251 iops : min= 1, max= 31, avg= 9.71, stdev= 4.82, samples=251 lat (msec) : 20=0.04%, 50=0.08%, 100=0.20%, 250=0.62%, 500=30.59% lat (msec) : 750=21.25%, 1000=17.15%, 2000=29.45%, >=2000=0.62% cpu : usr=0.10%, sys=0.78%, ctx=4728, 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=144720: Thu Aug 13 16:33:46 2026 read: IOPS=9, BW=39.2KiB/s (40.1kB/s)(4984KiB/127183msec) slat (usec): min=3153, max=71748, avg=17969.52, stdev=9601.98 clat (msec): min=14, max=942, avg=487.17, stdev=131.30 lat (msec): min=19, max=969, avg=505.15, stdev=133.06 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 321], 10.00th=[ 351], 20.00th=[ 384], | 30.00th=[ 414], 40.00th=[ 439], 50.00th=[ 472], 60.00th=[ 502], | 70.00th=[ 535], 80.00th=[ 567], 90.00th=[ 667], 95.00th=[ 751], | 99.00th=[ 877], 99.50th=[ 911], 99.90th=[ 944], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 6, max= 119, per=25.13%, avg=39.46, stdev=20.68, samples=247 iops : min= 1, max= 29, avg= 9.33, stdev= 5.21, samples=247 write: IOPS=10, BW=41.3KiB/s (42.3kB/s)(5256KiB/127183msec); 0 zone resets slat (usec): min=48, max=14343, avg=477.41, stdev=1125.21 clat (msec): min=113, max=2220, avg=1066.46, stdev=296.92 lat (msec): min=114, max=2229, avg=1066.94, stdev=296.97 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 567], 10.00th=[ 709], 20.00th=[ 835], | 30.00th=[ 911], 40.00th=[ 986], 50.00th=[ 1062], 60.00th=[ 1133], | 70.00th=[ 1200], 80.00th=[ 1284], 90.00th=[ 1418], 95.00th=[ 1586], | 99.00th=[ 1821], 99.50th=[ 2005], 99.90th=[ 2089], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 6, max= 103, per=25.03%, avg=41.05, stdev=19.53, samples=249 iops : min= 1, max= 25, avg= 9.73, stdev= 4.89, samples=249 lat (msec) : 20=0.16%, 50=0.04%, 100=0.12%, 250=0.47%, 500=30.00% lat (msec) : 750=21.68%, 1000=17.50%, 2000=29.80%, >=2000=0.23% cpu : usr=0.10%, sys=0.78%, ctx=4644, 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=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=144721: Thu Aug 13 16:33:46 2026 read: IOPS=9, BW=39.9KiB/s (40.9kB/s)(5060KiB/126753msec) slat (usec): min=87, max=69611, avg=17642.42, stdev=9704.68 clat (msec): min=16, max=1357, avg=488.94, stdev=140.22 lat (msec): min=16, max=1368, avg=506.60, stdev=141.85 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 317], 10.00th=[ 347], 20.00th=[ 384], | 30.00th=[ 414], 40.00th=[ 439], 50.00th=[ 468], 60.00th=[ 498], | 70.00th=[ 535], 80.00th=[ 575], 90.00th=[ 676], 95.00th=[ 760], | 99.00th=[ 894], 99.50th=[ 1003], 99.90th=[ 1267], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 7, max= 95, per=25.39%, avg=39.85, stdev=17.87, samples=248 iops : min= 1, max= 23, avg= 9.43, stdev= 4.47, samples=248 write: IOPS=10, BW=40.9KiB/s (41.8kB/s)(5180KiB/126753msec); 0 zone resets slat (usec): min=56, max=25000, avg=542.84, stdev=1586.49 clat (msec): min=155, max=2230, avg=1069.26, stdev=309.64 lat (msec): min=171, max=2230, avg=1069.81, stdev=309.58 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 584], 10.00th=[ 709], 20.00th=[ 827], | 30.00th=[ 902], 40.00th=[ 986], 50.00th=[ 1062], 60.00th=[ 1133], | 70.00th=[ 1200], 80.00th=[ 1301], 90.00th=[ 1452], 95.00th=[ 1603], | 99.00th=[ 1989], 99.50th=[ 2140], 99.90th=[ 2198], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 7, max= 111, per=24.95%, avg=40.92, stdev=18.94, samples=246 iops : min= 1, max= 27, avg= 9.70, stdev= 4.79, samples=246 lat (msec) : 20=0.04%, 50=0.20%, 100=0.16%, 250=0.43%, 500=30.70% lat (msec) : 750=21.64%, 1000=17.15%, 2000=29.26%, >=2000=0.43% cpu : usr=0.11%, sys=0.75%, ctx=4309, 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=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=158KiB/s (162kB/s), 39.1KiB/s-39.9KiB/s (40.1kB/s-40.9kB/s), io=19.6MiB (20.5MB), run=126753-127183msec WRITE: bw=164KiB/s (168kB/s), 40.8KiB/s-41.4KiB/s (41.8kB/s-42.4kB/s), io=20.4MiB (21.4MB), run=126753-127183msec 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=144744: Thu Aug 13 16:33:58 2026 read: IOPS=1, BW=52.8MiB/s (55.3MB/s)(40.0MiB/758msec) slat (nsec): min=50911k, max=50911k, avg=50911140.00, stdev= 0.00 clat (nsec): min=668464k, max=668464k, avg=668464293.00, stdev= 0.00 lat (nsec): min=719380k, max=719380k, avg=719380149.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 667], 5.00th=[ 667], 10.00th=[ 667], 20.00th=[ 667], | 30.00th=[ 667], 40.00th=[ 667], 50.00th=[ 667], 60.00th=[ 667], | 70.00th=[ 667], 80.00th=[ 667], 90.00th=[ 667], 95.00th=[ 667], | 99.00th=[ 667], 99.50th=[ 667], 99.90th=[ 667], 99.95th=[ 667], | 99.99th=[ 667] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.45%, ctx=10, majf=0, minf=8 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=52.8MiB/s (55.3MB/s), 52.8MiB/s-52.8MiB/s (55.3MB/s-55.3MB/s), io=40.0MiB (41.9MB), run=758-758msec 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