== sanity test 398c: run fio to test AIO ================= 17:20:00 (1790976000) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.317148 s, 132 MB/s osc.lustre-OST0000-osc-ffff9f92c828e000.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=147182: Fri Oct 2 17:23:16 2026 write: IOPS=13, BW=55.3KiB/s (56.7kB/s)(10.0MiB/185085msec); 0 zone resets slat (usec): min=23, max=24889, avg=222.14, stdev=1111.87 clat (msec): min=295, max=2605, avg=1156.37, stdev=388.68 lat (msec): min=295, max=2605, avg=1156.59, stdev=388.72 clat percentiles (msec): | 1.00th=[ 321], 5.00th=[ 659], 10.00th=[ 760], 20.00th=[ 827], | 30.00th=[ 919], 40.00th=[ 995], 50.00th=[ 1099], 60.00th=[ 1200], | 70.00th=[ 1318], 80.00th=[ 1485], 90.00th=[ 1703], 95.00th=[ 1871], | 99.00th=[ 2198], 99.50th=[ 2366], 99.90th=[ 2567], 99.95th=[ 2601], | 99.99th=[ 2601] bw ( KiB/s): min= 7, max= 256, per=25.20%, avg=55.68, stdev=29.38, samples=361 iops : min= 1, max= 64, avg=13.45, stdev= 7.37, samples=361 lat (msec) : 500=3.71%, 750=5.66%, 1000=30.94%, 2000=56.68%, >=2000=3.01% cpu : usr=0.04%, sys=0.18%, ctx=1838, 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=147183: Fri Oct 2 17:23:16 2026 write: IOPS=13, BW=55.4KiB/s (56.7kB/s)(10.0MiB/184995msec); 0 zone resets slat (usec): min=23, max=26720, avg=262.79, stdev=1385.42 clat (msec): min=297, max=2413, avg=1155.27, stdev=387.42 lat (msec): min=297, max=2413, avg=1155.54, stdev=387.45 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 642], 10.00th=[ 743], 20.00th=[ 835], | 30.00th=[ 919], 40.00th=[ 1011], 50.00th=[ 1099], 60.00th=[ 1200], | 70.00th=[ 1318], 80.00th=[ 1452], 90.00th=[ 1703], 95.00th=[ 1888], | 99.00th=[ 2165], 99.50th=[ 2265], 99.90th=[ 2299], 99.95th=[ 2400], | 99.99th=[ 2400] bw ( KiB/s): min= 7, max= 256, per=25.13%, avg=55.54, stdev=27.75, samples=362 iops : min= 1, max= 64, avg=13.41, stdev= 6.97, samples=362 lat (msec) : 500=3.36%, 750=6.95%, 1000=28.09%, 2000=58.63%, >=2000=2.97% cpu : usr=0.05%, sys=0.20%, ctx=1938, 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=147184: Fri Oct 2 17:23:16 2026 write: IOPS=13, BW=55.3KiB/s (56.7kB/s)(10.0MiB/185042msec); 0 zone resets slat (usec): min=23, max=18930, avg=187.49, stdev=815.26 clat (msec): min=296, max=2604, avg=1155.39, stdev=393.78 lat (msec): min=296, max=2604, avg=1155.59, stdev=393.79 clat percentiles (msec): | 1.00th=[ 309], 5.00th=[ 651], 10.00th=[ 743], 20.00th=[ 827], | 30.00th=[ 919], 40.00th=[ 1003], 50.00th=[ 1099], 60.00th=[ 1200], | 70.00th=[ 1318], 80.00th=[ 1469], 90.00th=[ 1720], 95.00th=[ 1921], | 99.00th=[ 2165], 99.50th=[ 2265], 99.90th=[ 2366], 99.95th=[ 2601], | 99.99th=[ 2601] bw ( KiB/s): min= 7, max= 224, per=25.34%, avg=56.01, stdev=28.67, samples=359 iops : min= 1, max= 56, avg=13.53, stdev= 7.20, samples=359 lat (msec) : 500=3.44%, 750=7.34%, 1000=29.02%, 2000=56.76%, >=2000=3.44% cpu : usr=0.04%, sys=0.17%, ctx=1647, 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=147185: Fri Oct 2 17:23:16 2026 write: IOPS=13, BW=55.4KiB/s (56.7kB/s)(10.0MiB/184803msec); 0 zone resets slat (usec): min=23, max=19775, avg=229.86, stdev=971.50 clat (msec): min=39, max=2353, avg=1154.44, stdev=389.43 lat (msec): min=39, max=2353, avg=1154.68, stdev=389.45 clat percentiles (msec): | 1.00th=[ 296], 5.00th=[ 642], 10.00th=[ 743], 20.00th=[ 844], | 30.00th=[ 927], 40.00th=[ 1011], 50.00th=[ 1099], 60.00th=[ 1200], | 70.00th=[ 1318], 80.00th=[ 1485], 90.00th=[ 1687], 95.00th=[ 1871], | 99.00th=[ 2165], 99.50th=[ 2265], 99.90th=[ 2333], 99.95th=[ 2333], | 99.99th=[ 2366] bw ( KiB/s): min= 7, max= 192, per=25.20%, avg=55.68, stdev=29.98, samples=361 iops : min= 1, max= 48, avg=13.45, stdev= 7.52, samples=361 lat (msec) : 50=0.04%, 250=0.47%, 500=3.20%, 750=6.76%, 1000=28.24% lat (msec) : 2000=58.24%, >=2000=3.05% cpu : usr=0.04%, sys=0.22%, ctx=2199, 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=221KiB/s (227kB/s), 55.3KiB/s-55.4KiB/s (56.7kB/s-56.7kB/s), io=40.0MiB (41.9MB), run=184803-185085msec 4% of I/O are 1-page (PAGE_SIZE=4096), max 50% 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=147222: Fri Oct 2 17:25:09 2026 read: IOPS=12, BW=50.1KiB/s (51.3kB/s)(5048KiB/100798msec) slat (usec): min=2522, max=48376, avg=13868.47, stdev=7886.50 clat (msec): min=21, max=848, avg=393.00, stdev=102.83 lat (msec): min=27, max=860, avg=406.87, stdev=103.78 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 245], 10.00th=[ 271], 20.00th=[ 317], | 30.00th=[ 342], 40.00th=[ 363], 50.00th=[ 388], 60.00th=[ 409], | 70.00th=[ 439], 80.00th=[ 472], 90.00th=[ 523], 95.00th=[ 567], | 99.00th=[ 667], 99.50th=[ 693], 99.90th=[ 760], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 7, max= 133, per=25.23%, avg=49.95, stdev=22.49, samples=198 iops : min= 1, max= 33, avg=12.04, stdev= 5.68, samples=198 write: IOPS=12, BW=51.5KiB/s (52.7kB/s)(5192KiB/100798msec); 0 zone resets slat (usec): min=32, max=15449, avg=269.56, stdev=996.07 clat (msec): min=207, max=1760, avg=843.84, stdev=227.23 lat (msec): min=207, max=1760, avg=844.11, stdev=227.26 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 510], 10.00th=[ 575], 20.00th=[ 651], | 30.00th=[ 726], 40.00th=[ 776], 50.00th=[ 827], 60.00th=[ 877], | 70.00th=[ 953], 80.00th=[ 1028], 90.00th=[ 1133], 95.00th=[ 1250], | 99.00th=[ 1502], 99.50th=[ 1569], 99.90th=[ 1687], 99.95th=[ 1754], | 99.99th=[ 1754] bw ( KiB/s): min= 7, max= 118, per=24.54%, avg=50.81, stdev=22.01, samples=200 iops : min= 1, max= 29, avg=12.24, stdev= 5.53, samples=200 lat (msec) : 50=0.23%, 100=0.20%, 250=2.42%, 500=42.11%, 750=22.15% lat (msec) : 1000=21.29%, 2000=11.60% cpu : usr=0.10%, sys=0.61%, ctx=4835, 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=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=147223: Fri Oct 2 17:25:09 2026 read: IOPS=12, BW=49.3KiB/s (50.5kB/s)(4976KiB/100897msec) slat (usec): min=2826, max=63952, avg=13644.42, stdev=7554.98 clat (msec): min=20, max=717, avg=389.76, stdev=98.73 lat (msec): min=35, max=754, avg=403.41, stdev=99.87 clat percentiles (msec): | 1.00th=[ 188], 5.00th=[ 247], 10.00th=[ 275], 20.00th=[ 313], | 30.00th=[ 338], 40.00th=[ 359], 50.00th=[ 380], 60.00th=[ 409], | 70.00th=[ 435], 80.00th=[ 464], 90.00th=[ 514], 95.00th=[ 575], | 99.00th=[ 651], 99.50th=[ 676], 99.90th=[ 718], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 7, max= 133, per=24.82%, avg=49.14, stdev=24.38, samples=198 iops : min= 1, max= 33, avg=11.83, stdev= 6.14, samples=198 write: IOPS=13, BW=52.2KiB/s (53.4kB/s)(5264KiB/100897msec); 0 zone resets slat (usec): min=23, max=17565, avg=230.74, stdev=891.28 clat (msec): min=151, max=1765, avg=843.08, stdev=241.95 lat (msec): min=151, max=1765, avg=843.31, stdev=241.98 clat percentiles (msec): | 1.00th=[ 359], 5.00th=[ 485], 10.00th=[ 550], 20.00th=[ 642], | 30.00th=[ 709], 40.00th=[ 768], 50.00th=[ 827], 60.00th=[ 877], | 70.00th=[ 953], 80.00th=[ 1028], 90.00th=[ 1150], 95.00th=[ 1284], | 99.00th=[ 1536], 99.50th=[ 1620], 99.90th=[ 1770], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 7, max= 128, per=24.85%, avg=51.43, stdev=19.85, samples=200 iops : min= 1, max= 32, avg=12.40, stdev= 4.99, samples=200 lat (msec) : 50=0.16%, 100=0.12%, 250=2.81%, 500=42.54%, 750=21.84% lat (msec) : 1000=20.39%, 2000=12.15% cpu : usr=0.11%, sys=0.57%, ctx=4202, 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=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=147224: Fri Oct 2 17:25:09 2026 read: IOPS=12, BW=49.7KiB/s (50.9kB/s)(4984KiB/100334msec) slat (usec): min=35, max=56976, avg=13827.43, stdev=7803.93 clat (msec): min=19, max=1026, avg=390.93, stdev=105.13 lat (msec): min=24, max=1036, avg=404.76, stdev=106.49 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 236], 10.00th=[ 271], 20.00th=[ 309], | 30.00th=[ 338], 40.00th=[ 363], 50.00th=[ 384], 60.00th=[ 414], | 70.00th=[ 439], 80.00th=[ 468], 90.00th=[ 523], 95.00th=[ 567], | 99.00th=[ 667], 99.50th=[ 709], 99.90th=[ 1003], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 15, max= 112, per=24.95%, avg=49.39, stdev=22.82, samples=198 iops : min= 3, max= 28, avg=11.89, stdev= 5.80, samples=198 write: IOPS=13, BW=52.4KiB/s (53.6kB/s)(5256KiB/100334msec); 0 zone resets slat (usec): min=24, max=15419, avg=210.86, stdev=725.30 clat (msec): min=145, max=1772, avg=836.88, stdev=235.02 lat (msec): min=145, max=1772, avg=837.10, stdev=235.03 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 498], 10.00th=[ 558], 20.00th=[ 634], | 30.00th=[ 709], 40.00th=[ 768], 50.00th=[ 818], 60.00th=[ 869], | 70.00th=[ 944], 80.00th=[ 1028], 90.00th=[ 1133], 95.00th=[ 1284], | 99.00th=[ 1485], 99.50th=[ 1536], 99.90th=[ 1754], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 7, max= 112, per=24.85%, avg=51.44, stdev=21.52, samples=199 iops : min= 1, max= 28, avg=12.41, stdev= 5.37, samples=199 lat (msec) : 20=0.04%, 50=0.20%, 100=0.23%, 250=3.20%, 500=41.21% lat (msec) : 750=22.70%, 1000=20.59%, 2000=11.84% cpu : usr=0.09%, sys=0.55%, ctx=4097, 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=147225: Fri Oct 2 17:25:09 2026 read: IOPS=12, BW=50.2KiB/s (51.4kB/s)(5060KiB/100803msec) slat (usec): min=2897, max=62942, avg=13742.58, stdev=7711.97 clat (msec): min=11, max=713, avg=396.93, stdev=95.23 lat (msec): min=17, max=737, avg=410.67, stdev=96.60 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 255], 10.00th=[ 279], 20.00th=[ 326], | 30.00th=[ 351], 40.00th=[ 372], 50.00th=[ 393], 60.00th=[ 418], | 70.00th=[ 439], 80.00th=[ 468], 90.00th=[ 518], 95.00th=[ 567], | 99.00th=[ 651], 99.50th=[ 659], 99.90th=[ 709], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 7, max= 136, per=25.21%, avg=49.92, stdev=21.64, samples=199 iops : min= 1, max= 34, avg=12.03, stdev= 5.47, samples=199 write: IOPS=12, BW=51.4KiB/s (52.6kB/s)(5180KiB/100803msec); 0 zone resets slat (usec): min=26, max=28117, avg=215.45, stdev=910.15 clat (msec): min=148, max=1658, avg=841.69, stdev=232.70 lat (msec): min=148, max=1658, avg=841.90, stdev=232.70 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 498], 10.00th=[ 575], 20.00th=[ 651], | 30.00th=[ 718], 40.00th=[ 768], 50.00th=[ 818], 60.00th=[ 877], | 70.00th=[ 953], 80.00th=[ 1028], 90.00th=[ 1133], 95.00th=[ 1267], | 99.00th=[ 1502], 99.50th=[ 1620], 99.90th=[ 1653], 99.95th=[ 1653], | 99.99th=[ 1653] bw ( KiB/s): min= 7, max= 109, per=24.55%, avg=50.82, stdev=19.15, samples=199 iops : min= 1, max= 27, avg=12.25, stdev= 4.83, samples=199 lat (msec) : 20=0.04%, 50=0.20%, 100=0.12%, 250=1.95%, 500=43.01% lat (msec) : 750=22.85%, 1000=20.00%, 2000=11.84% cpu : usr=0.08%, sys=0.63%, ctx=4299, 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=199KiB/s (204kB/s), 49.3KiB/s-50.2KiB/s (50.5kB/s-51.4kB/s), io=19.6MiB (20.5MB), run=100334-100897msec WRITE: bw=207KiB/s (212kB/s), 51.4KiB/s-52.4KiB/s (52.6kB/s-53.6kB/s), io=20.4MiB (21.4MB), run=100334-100897msec 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=147244: Fri Oct 2 17:25:19 2026 read: IOPS=2, BW=95.9MiB/s (101MB/s)(40.0MiB/417msec) slat (nsec): min=39867k, max=39867k, avg=39866939.00, stdev= 0.00 clat (nsec): min=361200k, max=361200k, avg=361199976.00, stdev= 0.00 lat (nsec): min=401070k, max=401070k, avg=401070435.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 363], 10.00th=[ 363], 20.00th=[ 363], | 30.00th=[ 363], 40.00th=[ 363], 50.00th=[ 363], 60.00th=[ 363], | 70.00th=[ 363], 80.00th=[ 363], 90.00th=[ 363], 95.00th=[ 363], | 99.00th=[ 363], 99.50th=[ 363], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.12%, ctx=43, majf=0, minf=9 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=95.9MiB/s (101MB/s), 95.9MiB/s-95.9MiB/s (101MB/s-101MB/s), io=40.0MiB (41.9MB), run=417-417msec 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