== sanity test 398c: run fio to test AIO ================= 17:47:19 (1787867239) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.709373 s, 59.1 MB/s osc.lustre-OST0000-osc-ffff986847fb1000.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=145253: Thu Aug 27 17:49:44 2026 write: IOPS=18, BW=75.4KiB/s (77.2kB/s)(10.0MiB/135831msec); 0 zone resets slat (usec): min=22, max=18658, avg=178.66, stdev=715.61 clat (msec): min=85, max=1745, avg=848.02, stdev=278.10 lat (msec): min=85, max=1745, avg=848.20, stdev=278.11 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 464], 10.00th=[ 550], 20.00th=[ 642], | 30.00th=[ 701], 40.00th=[ 760], 50.00th=[ 818], 60.00th=[ 894], | 70.00th=[ 986], 80.00th=[ 1083], 90.00th=[ 1200], 95.00th=[ 1318], | 99.00th=[ 1569], 99.50th=[ 1653], 99.90th=[ 1703], 99.95th=[ 1754], | 99.99th=[ 1754] bw ( KiB/s): min= 7, max= 421, per=25.22%, avg=75.90, stdev=39.54, samples=265 iops : min= 1, max= 105, avg=18.55, stdev= 9.93, samples=265 lat (msec) : 100=0.66%, 250=2.50%, 500=3.40%, 750=32.34%, 1000=32.03% lat (msec) : 2000=29.06% cpu : usr=0.04%, sys=0.24%, ctx=1897, 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=145254: Thu Aug 27 17:49:44 2026 write: IOPS=18, BW=75.5KiB/s (77.3kB/s)(10.0MiB/135587msec); 0 zone resets slat (usec): min=22, max=17659, avg=193.31, stdev=841.50 clat (msec): min=80, max=1785, avg=846.78, stdev=281.59 lat (msec): min=80, max=1785, avg=846.98, stdev=281.59 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 468], 10.00th=[ 558], 20.00th=[ 642], | 30.00th=[ 693], 40.00th=[ 751], 50.00th=[ 810], 60.00th=[ 894], | 70.00th=[ 978], 80.00th=[ 1083], 90.00th=[ 1217], 95.00th=[ 1318], | 99.00th=[ 1603], 99.50th=[ 1687], 99.90th=[ 1754], 99.95th=[ 1787], | 99.99th=[ 1787] bw ( KiB/s): min= 7, max= 425, per=24.93%, avg=75.03, stdev=38.50, samples=268 iops : min= 1, max= 106, avg=18.34, stdev= 9.65, samples=268 lat (msec) : 100=0.16%, 250=3.36%, 500=3.40%, 750=33.40%, 1000=31.48% lat (msec) : 2000=28.20% cpu : usr=0.05%, sys=0.22%, ctx=1849, 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=145255: Thu Aug 27 17:49:44 2026 write: IOPS=18, BW=75.4KiB/s (77.3kB/s)(10.0MiB/135730msec); 0 zone resets slat (usec): min=23, max=14732, avg=152.79, stdev=585.80 clat (msec): min=109, max=1761, avg=847.46, stdev=274.51 lat (msec): min=109, max=1761, avg=847.61, stdev=274.52 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 481], 10.00th=[ 558], 20.00th=[ 642], | 30.00th=[ 709], 40.00th=[ 760], 50.00th=[ 810], 60.00th=[ 894], | 70.00th=[ 978], 80.00th=[ 1083], 90.00th=[ 1183], 95.00th=[ 1318], | 99.00th=[ 1603], 99.50th=[ 1687], 99.90th=[ 1754], 99.95th=[ 1754], | 99.99th=[ 1754] bw ( KiB/s): min= 7, max= 419, per=25.51%, avg=76.77, stdev=41.08, samples=262 iops : min= 1, max= 104, avg=18.77, stdev=10.29, samples=262 lat (msec) : 250=3.12%, 500=2.30%, 750=33.44%, 1000=32.85%, 2000=28.28% cpu : usr=0.04%, sys=0.21%, ctx=2074, 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=145256: Thu Aug 27 17:49:44 2026 write: IOPS=18, BW=75.5KiB/s (77.3kB/s)(10.0MiB/135673msec); 0 zone resets slat (usec): min=22, max=14250, avg=186.14, stdev=766.22 clat (msec): min=89, max=1785, avg=846.92, stdev=278.11 lat (msec): min=89, max=1785, avg=847.10, stdev=278.15 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 472], 10.00th=[ 550], 20.00th=[ 651], | 30.00th=[ 701], 40.00th=[ 760], 50.00th=[ 810], 60.00th=[ 885], | 70.00th=[ 978], 80.00th=[ 1083], 90.00th=[ 1200], 95.00th=[ 1318], | 99.00th=[ 1586], 99.50th=[ 1687], 99.90th=[ 1787], 99.95th=[ 1787], | 99.99th=[ 1787] bw ( KiB/s): min= 7, max= 419, per=24.84%, avg=74.76, stdev=40.10, samples=269 iops : min= 1, max= 104, avg=18.27, stdev=10.04, samples=269 lat (msec) : 100=0.66%, 250=3.09%, 500=2.42%, 750=32.77%, 1000=33.20% lat (msec) : 2000=27.85% cpu : usr=0.05%, sys=0.22%, ctx=1744, 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 Run status group 0 (all jobs): WRITE: bw=302KiB/s (309kB/s), 75.4KiB/s-75.5KiB/s (77.2kB/s-77.3kB/s), io=40.0MiB (41.9MB), run=135587-135831msec 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=145285: Thu Aug 27 17:51:30 2026 read: IOPS=13, BW=52.0KiB/s (53.3kB/s)(5048KiB/97065msec) slat (usec): min=27, max=65043, avg=13035.16, stdev=7920.57 clat (msec): min=14, max=1837, avg=380.58, stdev=139.44 lat (msec): min=14, max=1866, avg=393.63, stdev=141.33 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 224], 10.00th=[ 259], 20.00th=[ 288], | 30.00th=[ 313], 40.00th=[ 338], 50.00th=[ 363], 60.00th=[ 388], | 70.00th=[ 418], 80.00th=[ 464], 90.00th=[ 535], 95.00th=[ 592], | 99.00th=[ 718], 99.50th=[ 793], 99.90th=[ 1670], 99.95th=[ 1838], | 99.99th=[ 1838] bw ( KiB/s): min= 7, max= 140, per=25.31%, avg=51.90, stdev=23.43, samples=191 iops : min= 1, max= 35, avg=12.49, stdev= 5.93, samples=191 write: IOPS=13, BW=53.5KiB/s (54.8kB/s)(5192KiB/97065msec); 0 zone resets slat (usec): min=27, max=19774, avg=228.02, stdev=843.03 clat (msec): min=111, max=2774, avg=812.25, stdev=281.26 lat (msec): min=111, max=2775, avg=812.48, stdev=281.27 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 460], 10.00th=[ 523], 20.00th=[ 592], | 30.00th=[ 651], 40.00th=[ 709], 50.00th=[ 760], 60.00th=[ 835], | 70.00th=[ 927], 80.00th=[ 1020], 90.00th=[ 1167], 95.00th=[ 1301], | 99.00th=[ 1569], 99.50th=[ 1921], 99.90th=[ 2668], 99.95th=[ 2769], | 99.99th=[ 2769] bw ( KiB/s): min= 7, max= 159, per=24.97%, avg=53.18, stdev=23.59, samples=191 iops : min= 1, max= 39, avg=12.82, stdev= 5.91, samples=191 lat (msec) : 20=0.12%, 50=0.31%, 100=0.27%, 250=3.95%, 500=41.68% lat (msec) : 750=27.19%, 1000=15.47%, 2000=10.82%, >=2000=0.20% cpu : usr=0.12%, sys=0.59%, ctx=4688, 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=145286: Thu Aug 27 17:51:30 2026 read: IOPS=12, BW=50.9KiB/s (52.1kB/s)(4976KiB/97817msec) slat (usec): min=2642, max=64141, avg=13361.14, stdev=8062.68 clat (msec): min=34, max=790, avg=380.00, stdev=112.24 lat (msec): min=43, max=804, avg=393.37, stdev=114.00 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 230], 10.00th=[ 262], 20.00th=[ 292], | 30.00th=[ 321], 40.00th=[ 338], 50.00th=[ 363], 60.00th=[ 388], | 70.00th=[ 418], 80.00th=[ 464], 90.00th=[ 535], 95.00th=[ 600], | 99.00th=[ 701], 99.50th=[ 726], 99.90th=[ 776], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 7, max= 119, per=24.53%, avg=50.30, stdev=24.54, samples=193 iops : min= 1, max= 29, avg=12.08, stdev= 6.16, samples=193 write: IOPS=13, BW=53.8KiB/s (55.1kB/s)(5264KiB/97817msec); 0 zone resets slat (usec): min=32, max=16541, avg=264.75, stdev=986.17 clat (msec): min=200, max=1736, avg=815.73, stdev=257.92 lat (msec): min=200, max=1736, avg=816.01, stdev=257.98 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 468], 10.00th=[ 527], 20.00th=[ 592], | 30.00th=[ 659], 40.00th=[ 718], 50.00th=[ 776], 60.00th=[ 844], | 70.00th=[ 911], 80.00th=[ 1020], 90.00th=[ 1167], 95.00th=[ 1318], | 99.00th=[ 1502], 99.50th=[ 1569], 99.90th=[ 1737], 99.95th=[ 1737], | 99.99th=[ 1737] bw ( KiB/s): min= 7, max= 119, per=24.90%, avg=53.04, stdev=21.71, samples=194 iops : min= 1, max= 29, avg=12.78, stdev= 5.49, samples=194 lat (msec) : 50=0.16%, 100=0.31%, 250=3.67%, 500=40.98%, 750=26.52% lat (msec) : 1000=17.23%, 2000=11.13% cpu : usr=0.12%, sys=0.58%, ctx=4760, majf=0, minf=14 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=145287: Thu Aug 27 17:51:30 2026 read: IOPS=12, BW=50.0KiB/s (52.2kB/s)(4984KiB/97782msec) slat (usec): min=2450, max=57701, avg=12816.79, stdev=7569.85 clat (msec): min=41, max=852, avg=379.43, stdev=110.61 lat (msec): min=46, max=886, avg=392.25, stdev=112.52 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 239], 10.00th=[ 266], 20.00th=[ 296], | 30.00th=[ 317], 40.00th=[ 338], 50.00th=[ 359], 60.00th=[ 388], | 70.00th=[ 422], 80.00th=[ 464], 90.00th=[ 523], 95.00th=[ 584], | 99.00th=[ 709], 99.50th=[ 776], 99.90th=[ 852], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 7, max= 128, per=24.89%, avg=51.03, stdev=23.07, samples=192 iops : min= 1, max= 32, avg=12.27, stdev= 5.78, samples=192 write: IOPS=13, BW=53.8KiB/s (55.0kB/s)(5256KiB/97782msec); 0 zone resets slat (usec): min=30, max=15875, avg=227.77, stdev=824.83 clat (msec): min=218, max=1627, avg=817.14, stdev=252.91 lat (msec): min=218, max=1627, avg=817.37, stdev=252.92 clat percentiles (msec): | 1.00th=[ 359], 5.00th=[ 485], 10.00th=[ 531], 20.00th=[ 609], | 30.00th=[ 667], 40.00th=[ 718], 50.00th=[ 768], 60.00th=[ 844], | 70.00th=[ 927], 80.00th=[ 1028], 90.00th=[ 1200], 95.00th=[ 1318], | 99.00th=[ 1485], 99.50th=[ 1519], 99.90th=[ 1620], 99.95th=[ 1620], | 99.99th=[ 1620] bw ( KiB/s): min= 15, max= 103, per=24.86%, avg=52.96, stdev=20.05, samples=194 iops : min= 3, max= 25, avg=12.76, stdev= 5.07, samples=194 lat (msec) : 50=0.12%, 100=0.39%, 250=2.81%, 500=42.27%, 750=26.37% lat (msec) : 1000=16.76%, 2000=11.29% cpu : usr=0.10%, sys=0.61%, ctx=4656, 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=145288: Thu Aug 27 17:51:30 2026 read: IOPS=12, BW=51.7KiB/s (52.0kB/s)(5060KiB/97781msec) slat (usec): min=2737, max=58995, avg=13080.44, stdev=7898.67 clat (msec): min=9, max=891, avg=385.26, stdev=116.17 lat (msec): min=29, max=914, avg=398.35, stdev=117.74 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 239], 10.00th=[ 262], 20.00th=[ 296], | 30.00th=[ 317], 40.00th=[ 338], 50.00th=[ 368], 60.00th=[ 393], | 70.00th=[ 426], 80.00th=[ 472], 90.00th=[ 535], 95.00th=[ 600], | 99.00th=[ 751], 99.50th=[ 844], 99.90th=[ 877], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 7, max= 119, per=25.23%, avg=51.72, stdev=22.93, samples=192 iops : min= 1, max= 29, avg=12.44, stdev= 5.76, samples=192 write: IOPS=13, BW=52.0KiB/s (54.2kB/s)(5180KiB/97781msec); 0 zone resets slat (usec): min=25, max=15362, avg=217.12, stdev=754.48 clat (msec): min=232, max=1632, avg=817.24, stdev=253.29 lat (msec): min=232, max=1632, avg=817.47, stdev=253.31 clat percentiles (msec): | 1.00th=[ 359], 5.00th=[ 477], 10.00th=[ 535], 20.00th=[ 600], | 30.00th=[ 667], 40.00th=[ 718], 50.00th=[ 776], 60.00th=[ 844], | 70.00th=[ 927], 80.00th=[ 1028], 90.00th=[ 1183], 95.00th=[ 1301], | 99.00th=[ 1536], 99.50th=[ 1552], 99.90th=[ 1636], 99.95th=[ 1636], | 99.99th=[ 1636] bw ( KiB/s): min= 7, max= 119, per=24.58%, avg=52.36, stdev=20.89, samples=194 iops : min= 1, max= 29, avg=12.60, stdev= 5.27, samples=194 lat (msec) : 10=0.04%, 50=0.08%, 100=0.16%, 250=3.59%, 500=41.91% lat (msec) : 750=26.56%, 1000=16.56%, 2000=11.09% cpu : usr=0.09%, sys=0.61%, ctx=4651, majf=0, minf=14 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=205KiB/s (210kB/s), 50.9KiB/s-52.0KiB/s (52.1kB/s-53.3kB/s), io=19.6MiB (20.5MB), run=97065-97817msec WRITE: bw=214KiB/s (219kB/s), 52.0KiB/s-53.8KiB/s (54.2kB/s-55.1kB/s), io=20.4MiB (21.4MB), run=97065-97817msec 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=145308: Thu Aug 27 17:51:40 2026 read: IOPS=1, BW=76.0MiB/s (79.7MB/s)(40.0MiB/526msec) slat (nsec): min=25883k, max=25883k, avg=25882905.00, stdev= 0.00 clat (nsec): min=481890k, max=481890k, avg=481889748.00, stdev= 0.00 lat (nsec): min=507777k, max=507777k, avg=507777321.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 481], 5.00th=[ 481], 10.00th=[ 481], 20.00th=[ 481], | 30.00th=[ 481], 40.00th=[ 481], 50.00th=[ 481], 60.00th=[ 481], | 70.00th=[ 481], 80.00th=[ 481], 90.00th=[ 481], 95.00th=[ 481], | 99.00th=[ 481], 99.50th=[ 481], 99.90th=[ 481], 99.95th=[ 481], | 99.99th=[ 481] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.10%, ctx=42, 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=76.0MiB/s (79.7MB/s), 76.0MiB/s-76.0MiB/s (79.7MB/s-79.7MB/s), io=40.0MiB (41.9MB), run=526-526msec 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