== sanity test 398c: run fio to test AIO ================= 23:21:29 (1787887289) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.36346 s, 115 MB/s osc.lustre-OST0000-osc-ffff9d12029bb000.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=145025: Thu Aug 27 23:24:09 2026 write: IOPS=16, BW=67.0KiB/s (69.6kB/s)(10.0MiB/150679msec); 0 zone resets slat (usec): min=24, max=15641, avg=266.07, stdev=941.81 clat (msec): min=198, max=2433, avg=940.29, stdev=301.92 lat (msec): min=199, max=2434, avg=940.56, stdev=301.93 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 542], 10.00th=[ 609], 20.00th=[ 701], | 30.00th=[ 768], 40.00th=[ 835], 50.00th=[ 894], 60.00th=[ 961], | 70.00th=[ 1053], 80.00th=[ 1150], 90.00th=[ 1351], 95.00th=[ 1485], | 99.00th=[ 1838], 99.50th=[ 1955], 99.90th=[ 2433], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 7, max= 151, per=25.27%, avg=68.48, stdev=33.24, samples=294 iops : min= 1, max= 37, avg=16.63, stdev= 8.33, samples=294 lat (msec) : 250=0.62%, 500=2.30%, 750=24.22%, 1000=37.19%, 2000=35.27% lat (msec) : >=2000=0.39% cpu : usr=0.06%, sys=0.30%, ctx=2005, 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=145026: Thu Aug 27 23:24:09 2026 write: IOPS=16, BW=67.0KiB/s (69.6kB/s)(10.0MiB/150681msec); 0 zone resets slat (usec): min=21, max=19395, avg=244.70, stdev=954.12 clat (msec): min=190, max=2427, avg=940.45, stdev=303.63 lat (msec): min=190, max=2427, avg=940.70, stdev=303.63 clat percentiles (msec): | 1.00th=[ 309], 5.00th=[ 535], 10.00th=[ 609], 20.00th=[ 701], | 30.00th=[ 768], 40.00th=[ 835], 50.00th=[ 902], 60.00th=[ 969], | 70.00th=[ 1045], 80.00th=[ 1150], 90.00th=[ 1334], 95.00th=[ 1469], | 99.00th=[ 1854], 99.50th=[ 2140], 99.90th=[ 2433], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 7, max= 143, per=25.36%, avg=68.73, stdev=31.53, samples=293 iops : min= 1, max= 35, avg=16.69, stdev= 7.89, samples=293 lat (msec) : 250=0.62%, 500=2.77%, 750=24.18%, 1000=36.72%, 2000=35.08% lat (msec) : >=2000=0.62% cpu : usr=0.06%, sys=0.29%, ctx=1843, 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=145027: Thu Aug 27 23:24:09 2026 write: IOPS=17, BW=68.0KiB/s (69.7kB/s)(10.0MiB/150494msec); 0 zone resets slat (usec): min=23, max=14787, avg=267.46, stdev=925.51 clat (msec): min=105, max=2415, avg=939.10, stdev=306.97 lat (msec): min=105, max=2415, avg=939.37, stdev=306.94 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 542], 10.00th=[ 609], 20.00th=[ 701], | 30.00th=[ 760], 40.00th=[ 827], 50.00th=[ 885], 60.00th=[ 961], | 70.00th=[ 1045], 80.00th=[ 1150], 90.00th=[ 1368], 95.00th=[ 1519], | 99.00th=[ 1871], 99.50th=[ 2005], 99.90th=[ 2400], 99.95th=[ 2400], | 99.99th=[ 2400] bw ( KiB/s): min= 7, max= 143, per=25.09%, avg=68.01, stdev=33.71, samples=296 iops : min= 1, max= 35, avg=16.51, stdev= 8.47, samples=296 lat (msec) : 250=0.62%, 500=2.27%, 750=26.33%, 1000=35.08%, 2000=35.20% lat (msec) : >=2000=0.51% cpu : usr=0.06%, sys=0.29%, ctx=1799, 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=145028: Thu Aug 27 23:24:09 2026 write: IOPS=17, BW=68.0KiB/s (69.7kB/s)(10.0MiB/150544msec); 0 zone resets slat (usec): min=22, max=22583, avg=286.99, stdev=1108.96 clat (msec): min=107, max=2133, avg=940.17, stdev=301.27 lat (msec): min=107, max=2134, avg=940.46, stdev=301.23 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 550], 10.00th=[ 609], 20.00th=[ 693], | 30.00th=[ 768], 40.00th=[ 835], 50.00th=[ 902], 60.00th=[ 978], | 70.00th=[ 1053], 80.00th=[ 1150], 90.00th=[ 1334], 95.00th=[ 1485], | 99.00th=[ 1871], 99.50th=[ 2039], 99.90th=[ 2140], 99.95th=[ 2140], | 99.99th=[ 2140] bw ( KiB/s): min= 7, max= 181, per=25.42%, avg=68.88, stdev=30.23, samples=292 iops : min= 1, max= 45, avg=16.73, stdev= 7.60, samples=292 lat (msec) : 250=0.70%, 500=2.11%, 750=24.77%, 1000=35.66%, 2000=36.13% lat (msec) : >=2000=0.62% cpu : usr=0.05%, sys=0.30%, ctx=2057, 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=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=272KiB/s (278kB/s), 67.0KiB/s-68.0KiB/s (69.6kB/s-69.7kB/s), io=40.0MiB (41.9MB), run=150494-150681msec 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=145060: Thu Aug 27 23:26:06 2026 read: IOPS=11, BW=47.5KiB/s (48.7kB/s)(5048KiB/106177msec) slat (usec): min=3274, max=61084, avg=15141.85, stdev=8499.37 clat (msec): min=58, max=839, avg=414.30, stdev=114.26 lat (msec): min=69, max=865, avg=429.45, stdev=115.90 clat percentiles (msec): | 1.00th=[ 205], 5.00th=[ 264], 10.00th=[ 284], 20.00th=[ 313], | 30.00th=[ 347], 40.00th=[ 372], 50.00th=[ 401], 60.00th=[ 430], | 70.00th=[ 460], 80.00th=[ 514], 90.00th=[ 575], 95.00th=[ 617], | 99.00th=[ 751], 99.50th=[ 776], 99.90th=[ 793], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 7, max= 119, per=24.96%, avg=46.93, stdev=22.19, samples=211 iops : min= 1, max= 29, avg=11.20, stdev= 5.61, samples=211 write: IOPS=12, BW=48.9KiB/s (50.1kB/s)(5192KiB/106177msec); 0 zone resets slat (usec): min=24, max=10423, avg=276.09, stdev=661.44 clat (msec): min=407, max=1855, avg=887.57, stdev=257.29 lat (msec): min=407, max=1855, avg=887.84, stdev=257.27 clat percentiles (msec): | 1.00th=[ 456], 5.00th=[ 514], 10.00th=[ 575], 20.00th=[ 667], | 30.00th=[ 743], 40.00th=[ 802], 50.00th=[ 860], 60.00th=[ 911], | 70.00th=[ 995], 80.00th=[ 1083], 90.00th=[ 1234], 95.00th=[ 1385], | 99.00th=[ 1586], 99.50th=[ 1670], 99.90th=[ 1854], 99.95th=[ 1854], | 99.99th=[ 1854] bw ( KiB/s): min= 7, max= 111, per=24.62%, avg=48.26, stdev=21.16, samples=210 iops : min= 1, max= 27, avg=11.54, stdev= 5.34, samples=210 lat (msec) : 100=0.16%, 250=1.56%, 500=39.02%, 750=23.71%, 1000=20.82% lat (msec) : 2000=14.73% cpu : usr=0.11%, sys=0.71%, ctx=4437, 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=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=145061: Thu Aug 27 23:26:06 2026 read: IOPS=11, BW=46.8KiB/s (47.9kB/s)(4976KiB/106343msec) slat (usec): min=2903, max=64445, avg=15432.36, stdev=8840.64 clat (msec): min=12, max=854, avg=411.22, stdev=116.58 lat (msec): min=28, max=867, avg=426.66, stdev=118.66 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 262], 10.00th=[ 284], 20.00th=[ 309], | 30.00th=[ 342], 40.00th=[ 368], 50.00th=[ 397], 60.00th=[ 426], | 70.00th=[ 456], 80.00th=[ 510], 90.00th=[ 567], 95.00th=[ 625], | 99.00th=[ 743], 99.50th=[ 768], 99.90th=[ 785], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 7, max= 119, per=24.72%, avg=46.47, stdev=24.00, samples=209 iops : min= 1, max= 29, avg=11.09, stdev= 6.06, samples=209 write: IOPS=12, BW=49.5KiB/s (50.7kB/s)(5264KiB/106343msec); 0 zone resets slat (usec): min=26, max=17705, avg=386.27, stdev=1253.79 clat (msec): min=207, max=1799, avg=886.71, stdev=258.74 lat (msec): min=207, max=1800, avg=887.10, stdev=258.71 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 510], 10.00th=[ 567], 20.00th=[ 659], | 30.00th=[ 743], 40.00th=[ 802], 50.00th=[ 860], 60.00th=[ 927], | 70.00th=[ 995], 80.00th=[ 1083], 90.00th=[ 1234], 95.00th=[ 1385], | 99.00th=[ 1586], 99.50th=[ 1653], 99.90th=[ 1737], 99.95th=[ 1804], | 99.99th=[ 1804] bw ( KiB/s): min= 7, max= 119, per=25.16%, avg=49.32, stdev=21.03, samples=209 iops : min= 1, max= 29, avg=11.80, stdev= 5.32, samples=209 lat (msec) : 20=0.04%, 50=0.08%, 100=0.16%, 250=1.88%, 500=38.32% lat (msec) : 750=24.02%, 1000=20.74%, 2000=14.77% cpu : usr=0.13%, sys=0.74%, ctx=4787, 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=145062: Thu Aug 27 23:26:06 2026 read: IOPS=11, BW=46.9KiB/s (48.0kB/s)(4984KiB/106243msec) slat (usec): min=34, max=73100, avg=15197.81, stdev=8617.65 clat (msec): min=16, max=789, avg=415.55, stdev=115.23 lat (msec): min=27, max=802, avg=430.76, stdev=117.21 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 259], 10.00th=[ 288], 20.00th=[ 321], | 30.00th=[ 351], 40.00th=[ 376], 50.00th=[ 401], 60.00th=[ 426], | 70.00th=[ 460], 80.00th=[ 506], 90.00th=[ 575], 95.00th=[ 634], | 99.00th=[ 743], 99.50th=[ 768], 99.90th=[ 776], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 7, max= 119, per=24.83%, avg=46.67, stdev=20.31, samples=210 iops : min= 1, max= 29, avg=11.14, stdev= 5.09, samples=210 write: IOPS=12, BW=49.5KiB/s (50.7kB/s)(5256KiB/106243msec); 0 zone resets slat (usec): min=30, max=23105, avg=348.82, stdev=1239.34 clat (msec): min=164, max=1726, avg=884.03, stdev=261.90 lat (msec): min=174, max=1726, avg=884.38, stdev=261.91 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 502], 10.00th=[ 567], 20.00th=[ 659], | 30.00th=[ 735], 40.00th=[ 793], 50.00th=[ 860], 60.00th=[ 902], | 70.00th=[ 986], 80.00th=[ 1083], 90.00th=[ 1234], 95.00th=[ 1385], | 99.00th=[ 1636], 99.50th=[ 1670], 99.90th=[ 1720], 99.95th=[ 1720], | 99.99th=[ 1720] bw ( KiB/s): min= 7, max= 103, per=24.99%, avg=48.98, stdev=20.09, samples=209 iops : min= 1, max= 25, avg=11.72, stdev= 5.12, samples=209 lat (msec) : 20=0.04%, 50=0.12%, 100=0.12%, 250=1.60%, 500=39.10% lat (msec) : 750=23.95%, 1000=20.23%, 2000=14.84% cpu : usr=0.12%, sys=0.75%, ctx=4509, 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=145063: Thu Aug 27 23:26:06 2026 read: IOPS=11, BW=47.7KiB/s (48.9kB/s)(5060KiB/106049msec) slat (usec): min=2775, max=62085, avg=15262.25, stdev=8670.90 clat (msec): min=28, max=851, avg=412.07, stdev=117.18 lat (msec): min=36, max=866, avg=427.34, stdev=118.91 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 262], 10.00th=[ 288], 20.00th=[ 317], | 30.00th=[ 342], 40.00th=[ 368], 50.00th=[ 393], 60.00th=[ 422], | 70.00th=[ 456], 80.00th=[ 510], 90.00th=[ 584], 95.00th=[ 634], | 99.00th=[ 718], 99.50th=[ 751], 99.90th=[ 802], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 7, max= 120, per=25.26%, avg=47.49, stdev=21.21, samples=209 iops : min= 1, max= 30, avg=11.35, stdev= 5.35, samples=209 write: IOPS=12, BW=48.8KiB/s (50.0kB/s)(5180KiB/106049msec); 0 zone resets slat (usec): min=32, max=17097, avg=400.79, stdev=1227.79 clat (msec): min=209, max=1782, avg=889.79, stdev=260.40 lat (msec): min=209, max=1783, avg=890.19, stdev=260.35 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 506], 10.00th=[ 567], 20.00th=[ 667], | 30.00th=[ 751], 40.00th=[ 810], 50.00th=[ 860], 60.00th=[ 911], | 70.00th=[ 995], 80.00th=[ 1099], 90.00th=[ 1250], 95.00th=[ 1401], | 99.00th=[ 1636], 99.50th=[ 1653], 99.90th=[ 1737], 99.95th=[ 1787], | 99.99th=[ 1787] bw ( KiB/s): min= 7, max= 110, per=24.57%, avg=48.15, stdev=19.74, samples=210 iops : min= 1, max= 27, avg=11.51, stdev= 5.02, samples=210 lat (msec) : 50=0.12%, 100=0.35%, 250=1.48%, 500=38.95%, 750=23.79% lat (msec) : 1000=20.74%, 2000=14.57% cpu : usr=0.14%, sys=0.78%, ctx=4592, 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=189KiB/s (193kB/s), 46.8KiB/s-47.7KiB/s (47.9kB/s-48.9kB/s), io=19.6MiB (20.5MB), run=106049-106343msec WRITE: bw=196KiB/s (201kB/s), 48.8KiB/s-49.5KiB/s (50.0kB/s-50.7kB/s), io=20.4MiB (21.4MB), run=106049-106343msec 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=145082: Thu Aug 27 23:26:18 2026 read: IOPS=1, BW=60.1MiB/s (62.0MB/s)(40.0MiB/666msec) slat (nsec): min=40765k, max=40765k, avg=40764912.00, stdev= 0.00 clat (nsec): min=568476k, max=568476k, avg=568475636.00, stdev= 0.00 lat (nsec): min=609245k, max=609245k, avg=609245468.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 567], 5.00th=[ 567], 10.00th=[ 567], 20.00th=[ 567], | 30.00th=[ 567], 40.00th=[ 567], 50.00th=[ 567], 60.00th=[ 567], | 70.00th=[ 567], 80.00th=[ 567], 90.00th=[ 567], 95.00th=[ 567], | 99.00th=[ 567], 99.50th=[ 567], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.50%, ctx=43, 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=60.1MiB/s (62.0MB/s), 60.1MiB/s-60.1MiB/s (62.0MB/s-62.0MB/s), io=40.0MiB (41.9MB), run=666-666msec 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