== sanity test 398c: run fio to test AIO ================= 23:31:48 (1788838308) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.368859 s, 114 MB/s osc.lustre-OST0000-osc-ffff8ab108b70800.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=146710: Mon Sep 7 23:34:50 2026 write: IOPS=14, BW=59.4KiB/s (60.8kB/s)(10.0MiB/172320msec); 0 zone resets slat (usec): min=28, max=18547, avg=247.72, stdev=1029.74 clat (msec): min=152, max=2332, avg=1075.93, stdev=320.74 lat (msec): min=152, max=2332, avg=1076.18, stdev=320.75 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 634], 10.00th=[ 751], 20.00th=[ 852], | 30.00th=[ 911], 40.00th=[ 969], 50.00th=[ 1045], 60.00th=[ 1116], | 70.00th=[ 1200], 80.00th=[ 1318], 90.00th=[ 1485], 95.00th=[ 1636], | 99.00th=[ 2005], 99.50th=[ 2106], 99.90th=[ 2299], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 7, max= 232, per=25.13%, avg=59.56, stdev=30.47, samples=338 iops : min= 1, max= 58, avg=14.45, stdev= 7.62, samples=338 lat (msec) : 250=1.76%, 500=1.45%, 750=6.88%, 1000=33.95%, 2000=54.96% lat (msec) : >=2000=1.02% cpu : usr=0.04%, sys=0.22%, ctx=1915, 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=146711: Mon Sep 7 23:34:50 2026 write: IOPS=14, BW=59.4KiB/s (60.8kB/s)(10.0MiB/172321msec); 0 zone resets slat (usec): min=27, max=22737, avg=236.39, stdev=1051.33 clat (msec): min=155, max=2313, avg=1075.90, stdev=324.11 lat (msec): min=155, max=2313, avg=1076.14, stdev=324.09 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 642], 10.00th=[ 735], 20.00th=[ 844], | 30.00th=[ 911], 40.00th=[ 969], 50.00th=[ 1036], 60.00th=[ 1116], | 70.00th=[ 1200], 80.00th=[ 1318], 90.00th=[ 1502], 95.00th=[ 1636], | 99.00th=[ 2022], 99.50th=[ 2198], 99.90th=[ 2265], 99.95th=[ 2299], | 99.99th=[ 2299] bw ( KiB/s): min= 7, max= 256, per=25.21%, avg=59.74, stdev=31.61, samples=337 iops : min= 1, max= 64, avg=14.50, stdev= 7.91, samples=337 lat (msec) : 250=1.88%, 500=1.33%, 750=7.62%, 1000=34.06%, 2000=54.02% lat (msec) : >=2000=1.09% cpu : usr=0.04%, sys=0.19%, ctx=1616, 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=146712: Mon Sep 7 23:34:50 2026 write: IOPS=14, BW=59.4KiB/s (60.8kB/s)(10.0MiB/172323msec); 0 zone resets slat (usec): min=28, max=16113, avg=214.05, stdev=807.22 clat (msec): min=153, max=2333, avg=1076.04, stdev=317.70 lat (msec): min=153, max=2334, avg=1076.26, stdev=317.69 clat percentiles (msec): | 1.00th=[ 232], 5.00th=[ 659], 10.00th=[ 751], 20.00th=[ 852], | 30.00th=[ 911], 40.00th=[ 969], 50.00th=[ 1036], 60.00th=[ 1099], | 70.00th=[ 1200], 80.00th=[ 1318], 90.00th=[ 1485], 95.00th=[ 1636], | 99.00th=[ 2022], 99.50th=[ 2165], 99.90th=[ 2232], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 7, max= 256, per=25.28%, avg=59.92, stdev=30.59, samples=336 iops : min= 1, max= 64, avg=14.55, stdev= 7.70, samples=336 lat (msec) : 250=1.88%, 500=1.17%, 750=6.72%, 1000=34.88%, 2000=54.22% lat (msec) : >=2000=1.13% cpu : usr=0.04%, sys=0.20%, ctx=1714, 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=146713: Mon Sep 7 23:34:50 2026 write: IOPS=14, BW=59.4KiB/s (60.8kB/s)(10.0MiB/172359msec); 0 zone resets slat (usec): min=28, max=15460, avg=240.12, stdev=886.97 clat (msec): min=83, max=2315, avg=1076.63, stdev=328.01 lat (msec): min=83, max=2315, avg=1076.88, stdev=327.99 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 659], 10.00th=[ 743], 20.00th=[ 835], | 30.00th=[ 902], 40.00th=[ 969], 50.00th=[ 1045], 60.00th=[ 1099], | 70.00th=[ 1200], 80.00th=[ 1334], 90.00th=[ 1519], 95.00th=[ 1670], | 99.00th=[ 2022], 99.50th=[ 2165], 99.90th=[ 2299], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 7, max= 293, per=25.43%, avg=60.26, stdev=32.70, samples=334 iops : min= 1, max= 73, avg=14.63, stdev= 8.19, samples=334 lat (msec) : 100=0.04%, 250=1.29%, 500=2.27%, 750=7.23%, 1000=33.48% lat (msec) : 2000=54.61%, >=2000=1.09% cpu : usr=0.04%, sys=0.20%, ctx=1823, 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 Run status group 0 (all jobs): WRITE: bw=238KiB/s (243kB/s), 59.4KiB/s-59.4KiB/s (60.8kB/s-60.8kB/s), io=40.0MiB (41.9MB), run=172320-172359msec 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=146748: Mon Sep 7 23:37:03 2026 read: IOPS=10, BW=40.3KiB/s (41.3kB/s)(5048KiB/125238msec) slat (usec): min=2702, max=94087, avg=14825.44, stdev=8818.66 clat (msec): min=57, max=1194, avg=476.67, stdev=147.63 lat (msec): min=74, max=1234, avg=491.50, stdev=149.68 clat percentiles (msec): | 1.00th=[ 236], 5.00th=[ 300], 10.00th=[ 326], 20.00th=[ 363], | 30.00th=[ 393], 40.00th=[ 418], 50.00th=[ 447], 60.00th=[ 481], | 70.00th=[ 518], 80.00th=[ 575], 90.00th=[ 667], 95.00th=[ 751], | 99.00th=[ 1003], 99.50th=[ 1062], 99.90th=[ 1183], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 7, max= 110, per=25.44%, avg=40.70, stdev=20.00, samples=243 iops : min= 1, max= 27, avg= 9.71, stdev= 5.04, samples=243 write: IOPS=10, BW=41.5KiB/s (42.5kB/s)(5192KiB/125238msec); 0 zone resets slat (usec): min=33, max=14692, avg=198.41, stdev=676.31 clat (msec): min=267, max=2454, avg=1063.45, stdev=352.28 lat (msec): min=267, max=2455, avg=1063.65, stdev=352.29 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 617], 10.00th=[ 701], 20.00th=[ 793], | 30.00th=[ 852], 40.00th=[ 919], 50.00th=[ 995], 60.00th=[ 1062], | 70.00th=[ 1167], 80.00th=[ 1284], 90.00th=[ 1620], 95.00th=[ 1854], | 99.00th=[ 2039], 99.50th=[ 2089], 99.90th=[ 2198], 99.95th=[ 2467], | 99.99th=[ 2467] bw ( KiB/s): min= 7, max= 112, per=25.05%, avg=41.59, stdev=20.26, samples=244 iops : min= 1, max= 28, avg= 9.92, stdev= 5.09, samples=244 lat (msec) : 100=0.12%, 250=0.62%, 500=32.34%, 750=21.13%, 1000=20.43% lat (msec) : 2000=24.53%, >=2000=0.82% cpu : usr=0.09%, sys=0.43%, ctx=4060, 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=146749: Mon Sep 7 23:37:03 2026 read: IOPS=9, BW=39.7KiB/s (40.7kB/s)(4976KiB/125219msec) slat (usec): min=34, max=76976, avg=14812.31, stdev=9300.21 clat (msec): min=20, max=1185, avg=474.57, stdev=153.93 lat (msec): min=25, max=1209, avg=489.39, stdev=156.37 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 288], 10.00th=[ 317], 20.00th=[ 359], | 30.00th=[ 388], 40.00th=[ 418], 50.00th=[ 451], 60.00th=[ 485], | 70.00th=[ 523], 80.00th=[ 575], 90.00th=[ 659], 95.00th=[ 751], | 99.00th=[ 1028], 99.50th=[ 1062], 99.90th=[ 1183], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 7, max= 120, per=25.35%, avg=40.55, stdev=22.24, samples=240 iops : min= 1, max= 30, avg= 9.67, stdev= 5.59, samples=240 write: IOPS=10, BW=42.0KiB/s (43.0kB/s)(5264KiB/125219msec); 0 zone resets slat (usec): min=30, max=21483, avg=232.05, stdev=998.61 clat (msec): min=108, max=2512, avg=1059.00, stdev=353.19 lat (msec): min=108, max=2512, avg=1059.23, stdev=353.25 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 617], 10.00th=[ 718], 20.00th=[ 802], | 30.00th=[ 860], 40.00th=[ 919], 50.00th=[ 995], 60.00th=[ 1070], | 70.00th=[ 1167], 80.00th=[ 1284], 90.00th=[ 1552], 95.00th=[ 1838], | 99.00th=[ 2089], 99.50th=[ 2165], 99.90th=[ 2366], 99.95th=[ 2500], | 99.99th=[ 2500] bw ( KiB/s): min= 7, max= 103, per=24.90%, avg=41.33, stdev=21.31, samples=249 iops : min= 1, max= 25, avg= 9.86, stdev= 5.35, samples=249 lat (msec) : 50=0.08%, 100=0.27%, 250=1.41%, 500=30.70%, 750=20.78% lat (msec) : 1000=21.21%, 2000=24.73%, >=2000=0.82% cpu : usr=0.08%, sys=0.42%, ctx=4028, 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=146750: Mon Sep 7 23:37:03 2026 read: IOPS=9, BW=39.8KiB/s (40.7kB/s)(4984KiB/125306msec) slat (usec): min=2921, max=71101, avg=14797.42, stdev=9470.65 clat (msec): min=10, max=1151, avg=470.19, stdev=147.77 lat (msec): min=18, max=1170, avg=484.99, stdev=150.27 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 292], 10.00th=[ 313], 20.00th=[ 359], | 30.00th=[ 388], 40.00th=[ 418], 50.00th=[ 447], 60.00th=[ 481], | 70.00th=[ 523], 80.00th=[ 575], 90.00th=[ 651], 95.00th=[ 735], | 99.00th=[ 969], 99.50th=[ 1003], 99.90th=[ 1062], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 7, max= 112, per=25.35%, avg=40.56, stdev=21.01, samples=241 iops : min= 1, max= 28, avg= 9.66, stdev= 5.31, samples=241 write: IOPS=10, BW=41.9KiB/s (42.0kB/s)(5256KiB/125306msec); 0 zone resets slat (usec): min=32, max=16241, avg=220.87, stdev=733.94 clat (msec): min=88, max=2507, avg=1064.08, stdev=351.15 lat (msec): min=89, max=2507, avg=1064.30, stdev=351.19 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 600], 10.00th=[ 709], 20.00th=[ 810], | 30.00th=[ 869], 40.00th=[ 927], 50.00th=[ 1003], 60.00th=[ 1070], | 70.00th=[ 1167], 80.00th=[ 1284], 90.00th=[ 1603], 95.00th=[ 1821], | 99.00th=[ 2056], 99.50th=[ 2140], 99.90th=[ 2467], 99.95th=[ 2500], | 99.99th=[ 2500] bw ( KiB/s): min= 7, max= 102, per=24.92%, avg=41.37, stdev=18.26, samples=247 iops : min= 1, max= 25, avg= 9.87, stdev= 4.56, samples=247 lat (msec) : 20=0.04%, 50=0.04%, 100=0.23%, 250=1.13%, 500=31.60% lat (msec) : 750=20.31%, 1000=20.90%, 2000=25.04%, >=2000=0.70% cpu : usr=0.08%, sys=0.47%, ctx=4081, 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=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=146751: Mon Sep 7 23:37:03 2026 read: IOPS=10, BW=40.4KiB/s (41.4kB/s)(5060KiB/125223msec) slat (usec): min=2970, max=76756, avg=14941.27, stdev=8810.76 clat (msec): min=27, max=1178, avg=480.40, stdev=155.40 lat (msec): min=45, max=1190, avg=495.35, stdev=157.27 clat percentiles (msec): | 1.00th=[ 236], 5.00th=[ 292], 10.00th=[ 317], 20.00th=[ 363], | 30.00th=[ 393], 40.00th=[ 418], 50.00th=[ 451], 60.00th=[ 485], | 70.00th=[ 531], 80.00th=[ 584], 90.00th=[ 676], 95.00th=[ 768], | 99.00th=[ 1003], 99.50th=[ 1053], 99.90th=[ 1167], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 7, max= 95, per=25.35%, avg=40.56, stdev=19.76, samples=245 iops : min= 1, max= 23, avg= 9.67, stdev= 4.93, samples=245 write: IOPS=10, BW=41.4KiB/s (42.4kB/s)(5180KiB/125223msec); 0 zone resets slat (usec): min=31, max=18671, avg=240.54, stdev=847.86 clat (msec): min=193, max=2527, avg=1061.21, stdev=348.84 lat (msec): min=193, max=2527, avg=1061.46, stdev=348.91 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 600], 10.00th=[ 718], 20.00th=[ 810], | 30.00th=[ 869], 40.00th=[ 927], 50.00th=[ 986], 60.00th=[ 1062], | 70.00th=[ 1167], 80.00th=[ 1267], 90.00th=[ 1620], 95.00th=[ 1821], | 99.00th=[ 2089], 99.50th=[ 2165], 99.90th=[ 2534], 99.95th=[ 2534], | 99.99th=[ 2534] bw ( KiB/s): min= 7, max= 110, per=24.93%, avg=41.38, stdev=19.51, samples=244 iops : min= 1, max= 27, avg= 9.88, stdev= 4.92, samples=244 lat (msec) : 50=0.12%, 100=0.08%, 250=0.90%, 500=31.52%, 750=20.16% lat (msec) : 1000=22.27%, 2000=24.22%, >=2000=0.74% cpu : usr=0.08%, sys=0.49%, ctx=3891, 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=160KiB/s (164kB/s), 39.7KiB/s-40.4KiB/s (40.7kB/s-41.4kB/s), io=19.6MiB (20.5MB), run=125219-125306msec WRITE: bw=167KiB/s (171kB/s), 41.4KiB/s-42.0KiB/s (42.4kB/s-43.0kB/s), io=20.4MiB (21.4MB), run=125219-125306msec 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=146774: Mon Sep 7 23:37:13 2026 read: IOPS=1, BW=78.6MiB/s (82.4MB/s)(40.0MiB/509msec) slat (nsec): min=33984k, max=33984k, avg=33983747.00, stdev= 0.00 clat (nsec): min=448628k, max=448628k, avg=448628279.00, stdev= 0.00 lat (nsec): min=482617k, max=482617k, avg=482616753.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 447], 5.00th=[ 447], 10.00th=[ 447], 20.00th=[ 447], | 30.00th=[ 447], 40.00th=[ 447], 50.00th=[ 447], 60.00th=[ 447], | 70.00th=[ 447], 80.00th=[ 447], 90.00th=[ 447], 95.00th=[ 447], | 99.00th=[ 447], 99.50th=[ 447], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.36%, ctx=5, 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=78.6MiB/s (82.4MB/s), 78.6MiB/s-78.6MiB/s (82.4MB/s-82.4MB/s), io=40.0MiB (41.9MB), run=509-509msec 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