== sanity test 398c: run fio to test AIO ================= 15:49:49 (1789588189) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.58748 s, 71.4 MB/s osc.lustre-OST0000-osc-ffff99982dc56800.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=145859: Wed Sep 16 15:52:54 2026 write: IOPS=14, BW=58.3KiB/s (59.7kB/s)(10.0MiB/175761msec); 0 zone resets slat (usec): min=27, max=18303, avg=201.17, stdev=767.81 clat (msec): min=252, max=2440, avg=1097.54, stdev=326.35 lat (msec): min=253, max=2441, avg=1097.74, stdev=326.38 clat percentiles (msec): | 1.00th=[ 264], 5.00th=[ 667], 10.00th=[ 760], 20.00th=[ 852], | 30.00th=[ 911], 40.00th=[ 986], 50.00th=[ 1045], 60.00th=[ 1116], | 70.00th=[ 1217], 80.00th=[ 1351], 90.00th=[ 1569], 95.00th=[ 1687], | 99.00th=[ 1955], 99.50th=[ 2232], 99.90th=[ 2433], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 7, max= 128, per=25.85%, avg=60.22, stdev=30.94, samples=334 iops : min= 1, max= 32, avg=14.57, stdev= 7.79, samples=334 lat (msec) : 500=3.16%, 750=5.62%, 1000=33.48%, 2000=56.80%, >=2000=0.94% cpu : usr=0.04%, sys=0.21%, ctx=1663, 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=145860: Wed Sep 16 15:52:54 2026 write: IOPS=14, BW=58.3KiB/s (59.7kB/s)(10.0MiB/175584msec); 0 zone resets slat (usec): min=24, max=13034, avg=185.00, stdev=735.69 clat (msec): min=186, max=2594, avg=1096.11, stdev=332.07 lat (msec): min=186, max=2594, avg=1096.30, stdev=332.11 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 659], 10.00th=[ 760], 20.00th=[ 852], | 30.00th=[ 911], 40.00th=[ 995], 50.00th=[ 1053], 60.00th=[ 1116], | 70.00th=[ 1217], 80.00th=[ 1351], 90.00th=[ 1569], 95.00th=[ 1703], | 99.00th=[ 1989], 99.50th=[ 2140], 99.90th=[ 2467], 99.95th=[ 2500], | 99.99th=[ 2601] bw ( KiB/s): min= 7, max= 255, per=25.77%, avg=60.05, stdev=31.88, samples=335 iops : min= 1, max= 63, avg=14.52, stdev= 8.02, samples=335 lat (msec) : 250=0.62%, 500=3.01%, 750=5.51%, 1000=32.73%, 2000=57.15% lat (msec) : >=2000=0.98% cpu : usr=0.04%, sys=0.19%, ctx=1509, 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=145861: Wed Sep 16 15:52:54 2026 write: IOPS=14, BW=58.3KiB/s (59.7kB/s)(10.0MiB/175754msec); 0 zone resets slat (usec): min=28, max=20194, avg=210.70, stdev=942.42 clat (msec): min=106, max=2530, avg=1097.47, stdev=323.09 lat (msec): min=106, max=2530, avg=1097.68, stdev=323.10 clat percentiles (msec): | 1.00th=[ 255], 5.00th=[ 701], 10.00th=[ 760], 20.00th=[ 852], | 30.00th=[ 919], 40.00th=[ 995], 50.00th=[ 1045], 60.00th=[ 1116], | 70.00th=[ 1200], 80.00th=[ 1351], 90.00th=[ 1569], 95.00th=[ 1670], | 99.00th=[ 1938], 99.50th=[ 2265], 99.90th=[ 2534], 99.95th=[ 2534], | 99.99th=[ 2534] bw ( KiB/s): min= 7, max= 128, per=25.60%, avg=59.66, stdev=29.24, samples=337 iops : min= 1, max= 32, avg=14.42, stdev= 7.36, samples=337 lat (msec) : 250=0.66%, 500=1.95%, 750=6.05%, 1000=32.27%, 2000=58.36% lat (msec) : >=2000=0.70% cpu : usr=0.04%, sys=0.19%, ctx=1651, 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=145862: Wed Sep 16 15:52:54 2026 write: IOPS=14, BW=58.3KiB/s (59.7kB/s)(10.0MiB/175648msec); 0 zone resets slat (usec): min=28, max=16796, avg=236.49, stdev=1012.05 clat (msec): min=44, max=2530, avg=1097.18, stdev=326.80 lat (msec): min=44, max=2530, avg=1097.42, stdev=326.83 clat percentiles (msec): | 1.00th=[ 300], 5.00th=[ 676], 10.00th=[ 768], 20.00th=[ 852], | 30.00th=[ 911], 40.00th=[ 986], 50.00th=[ 1045], 60.00th=[ 1116], | 70.00th=[ 1217], 80.00th=[ 1351], 90.00th=[ 1569], 95.00th=[ 1703], | 99.00th=[ 1938], 99.50th=[ 2265], 99.90th=[ 2433], 99.95th=[ 2534], | 99.99th=[ 2534] bw ( KiB/s): min= 7, max= 167, per=24.94%, avg=58.11, stdev=28.23, samples=346 iops : min= 1, max= 41, avg=14.04, stdev= 7.12, samples=346 lat (msec) : 50=0.04%, 250=0.47%, 500=2.70%, 750=5.35%, 1000=34.73% lat (msec) : 2000=55.98%, >=2000=0.74% cpu : usr=0.05%, sys=0.20%, ctx=1779, 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=233KiB/s (239kB/s), 58.3KiB/s-58.3KiB/s (59.7kB/s-59.7kB/s), io=40.0MiB (41.9MB), run=175584-175761msec 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=145898: Wed Sep 16 15:54:59 2026 read: IOPS=10, BW=43.7KiB/s (44.7kB/s)(5048KiB/115545msec) slat (usec): min=34, max=84914, avg=16125.62, stdev=9427.82 clat (msec): min=40, max=1059, avg=456.79, stdev=129.71 lat (msec): min=40, max=1073, avg=472.92, stdev=132.20 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 288], 10.00th=[ 317], 20.00th=[ 351], | 30.00th=[ 384], 40.00th=[ 418], 50.00th=[ 447], 60.00th=[ 472], | 70.00th=[ 506], 80.00th=[ 550], 90.00th=[ 625], 95.00th=[ 684], | 99.00th=[ 835], 99.50th=[ 877], 99.90th=[ 986], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 7, max= 127, per=25.31%, avg=43.53, stdev=21.16, samples=227 iops : min= 1, max= 31, avg=10.37, stdev= 5.32, samples=227 write: IOPS=11, BW=44.9KiB/s (46.0kB/s)(5192KiB/115545msec); 0 zone resets slat (usec): min=29, max=15639, avg=276.53, stdev=984.66 clat (msec): min=179, max=1922, avg=963.20, stdev=266.11 lat (msec): min=179, max=1922, avg=963.47, stdev=266.13 clat percentiles (msec): | 1.00th=[ 347], 5.00th=[ 558], 10.00th=[ 642], 20.00th=[ 743], | 30.00th=[ 818], 40.00th=[ 885], 50.00th=[ 936], 60.00th=[ 1020], | 70.00th=[ 1083], 80.00th=[ 1183], 90.00th=[ 1301], 95.00th=[ 1418], | 99.00th=[ 1653], 99.50th=[ 1737], 99.90th=[ 1787], 99.95th=[ 1921], | 99.99th=[ 1921] bw ( KiB/s): min= 7, max= 112, per=24.93%, avg=44.62, stdev=20.62, samples=227 iops : min= 1, max= 28, avg=10.64, stdev= 5.19, samples=227 lat (msec) : 50=0.20%, 100=0.27%, 250=0.90%, 500=33.63%, 750=23.83% lat (msec) : 1000=19.88%, 2000=21.29% cpu : usr=0.10%, sys=0.54%, ctx=4337, 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=145899: Wed Sep 16 15:54:59 2026 read: IOPS=10, BW=42.7KiB/s (43.8kB/s)(4976KiB/116409msec) slat (usec): min=3059, max=87706, avg=15998.77, stdev=9122.80 clat (msec): min=36, max=906, avg=455.33, stdev=117.58 lat (msec): min=42, max=934, avg=471.34, stdev=119.67 clat percentiles (msec): | 1.00th=[ 230], 5.00th=[ 296], 10.00th=[ 321], 20.00th=[ 359], | 30.00th=[ 393], 40.00th=[ 422], 50.00th=[ 447], 60.00th=[ 468], | 70.00th=[ 498], 80.00th=[ 542], 90.00th=[ 609], 95.00th=[ 676], | 99.00th=[ 802], 99.50th=[ 835], 99.90th=[ 894], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 7, max= 104, per=24.89%, avg=42.81, stdev=20.19, samples=227 iops : min= 1, max= 26, avg=10.19, stdev= 5.09, samples=227 write: IOPS=11, BW=45.2KiB/s (46.3kB/s)(5264KiB/116409msec); 0 zone resets slat (usec): min=33, max=26894, avg=281.45, stdev=1277.98 clat (msec): min=287, max=1926, avg=967.16, stdev=264.45 lat (msec): min=287, max=1926, avg=967.44, stdev=264.45 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 567], 10.00th=[ 642], 20.00th=[ 751], | 30.00th=[ 818], 40.00th=[ 877], 50.00th=[ 944], 60.00th=[ 1011], | 70.00th=[ 1083], 80.00th=[ 1200], 90.00th=[ 1318], 95.00th=[ 1418], | 99.00th=[ 1670], 99.50th=[ 1754], 99.90th=[ 1854], 99.95th=[ 1921], | 99.99th=[ 1921] bw ( KiB/s): min= 7, max= 103, per=25.05%, avg=44.84, stdev=19.05, samples=230 iops : min= 1, max= 25, avg=10.70, stdev= 4.79, samples=230 lat (msec) : 50=0.16%, 100=0.12%, 250=0.47%, 500=34.92%, 750=22.46% lat (msec) : 1000=20.78%, 2000=21.09% cpu : usr=0.08%, sys=0.57%, ctx=4289, 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=145900: Wed Sep 16 15:54:59 2026 read: IOPS=10, BW=42.8KiB/s (43.8kB/s)(4984KiB/116408msec) slat (usec): min=2806, max=75921, avg=15807.92, stdev=9312.85 clat (msec): min=28, max=945, avg=461.21, stdev=124.55 lat (msec): min=38, max=961, avg=477.03, stdev=126.62 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 300], 10.00th=[ 321], 20.00th=[ 355], | 30.00th=[ 388], 40.00th=[ 418], 50.00th=[ 447], 60.00th=[ 477], | 70.00th=[ 506], 80.00th=[ 558], 90.00th=[ 634], 95.00th=[ 701], | 99.00th=[ 835], 99.50th=[ 877], 99.90th=[ 936], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 7, max= 127, per=24.67%, avg=42.43, stdev=19.73, samples=230 iops : min= 1, max= 31, avg=10.10, stdev= 4.93, samples=230 write: IOPS=11, BW=45.2KiB/s (46.2kB/s)(5256KiB/116408msec); 0 zone resets slat (usec): min=33, max=13025, avg=297.42, stdev=987.98 clat (msec): min=126, max=1874, avg=962.49, stdev=271.68 lat (msec): min=126, max=1874, avg=962.79, stdev=271.65 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 531], 10.00th=[ 625], 20.00th=[ 735], | 30.00th=[ 818], 40.00th=[ 894], 50.00th=[ 953], 60.00th=[ 1011], | 70.00th=[ 1083], 80.00th=[ 1183], 90.00th=[ 1318], 95.00th=[ 1418], | 99.00th=[ 1653], 99.50th=[ 1720], 99.90th=[ 1854], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 7, max= 112, per=25.16%, avg=45.04, stdev=20.78, samples=228 iops : min= 1, max= 28, avg=10.75, stdev= 5.23, samples=228 lat (msec) : 50=0.08%, 100=0.12%, 250=0.59%, 500=34.14%, 750=23.75% lat (msec) : 1000=19.65%, 2000=21.68% cpu : usr=0.09%, sys=0.56%, ctx=4586, 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=145901: Wed Sep 16 15:54:59 2026 read: IOPS=10, BW=43.6KiB/s (44.6kB/s)(5060KiB/116170msec) slat (usec): min=3137, max=77641, avg=15556.62, stdev=9016.10 clat (msec): min=47, max=1004, avg=459.98, stdev=123.92 lat (msec): min=60, max=1019, avg=475.54, stdev=125.83 clat percentiles (msec): | 1.00th=[ 222], 5.00th=[ 300], 10.00th=[ 326], 20.00th=[ 359], | 30.00th=[ 393], 40.00th=[ 418], 50.00th=[ 443], 60.00th=[ 472], | 70.00th=[ 502], 80.00th=[ 550], 90.00th=[ 625], 95.00th=[ 693], | 99.00th=[ 844], 99.50th=[ 860], 99.90th=[ 953], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 7, max= 111, per=25.33%, avg=43.57, stdev=19.79, samples=227 iops : min= 1, max= 27, avg=10.38, stdev= 5.00, samples=227 write: IOPS=11, BW=44.6KiB/s (45.7kB/s)(5180KiB/116170msec); 0 zone resets slat (usec): min=33, max=39175, avg=285.13, stdev=1295.47 clat (msec): min=220, max=1932, avg=968.18, stdev=260.27 lat (msec): min=220, max=1932, avg=968.47, stdev=260.29 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 567], 10.00th=[ 642], 20.00th=[ 743], | 30.00th=[ 827], 40.00th=[ 885], 50.00th=[ 944], 60.00th=[ 1011], | 70.00th=[ 1083], 80.00th=[ 1183], 90.00th=[ 1318], 95.00th=[ 1435], | 99.00th=[ 1636], 99.50th=[ 1687], 99.90th=[ 1921], 99.95th=[ 1938], | 99.99th=[ 1938] bw ( KiB/s): min= 7, max= 103, per=24.95%, avg=44.66, stdev=19.68, samples=227 iops : min= 1, max= 25, avg=10.67, stdev= 4.94, samples=227 lat (msec) : 50=0.04%, 100=0.20%, 250=0.43%, 500=35.31%, 750=22.66% lat (msec) : 1000=19.84%, 2000=21.52% cpu : usr=0.09%, sys=0.58%, ctx=4582, 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=172KiB/s (177kB/s), 42.7KiB/s-43.7KiB/s (43.8kB/s-44.7kB/s), io=19.6MiB (20.5MB), run=115545-116409msec WRITE: bw=179KiB/s (184kB/s), 44.6KiB/s-45.2KiB/s (45.7kB/s-46.3kB/s), io=20.4MiB (21.4MB), run=115545-116409msec 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=145921: Wed Sep 16 15:55:06 2026 read: IOPS=1, BW=74.5MiB/s (78.1MB/s)(40.0MiB/537msec) slat (nsec): min=29580k, max=29580k, avg=29579591.00, stdev= 0.00 clat (nsec): min=486547k, max=486547k, avg=486547263.00, stdev= 0.00 lat (nsec): min=516133k, max=516133k, avg=516132729.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 489], 5.00th=[ 489], 10.00th=[ 489], 20.00th=[ 489], | 30.00th=[ 489], 40.00th=[ 489], 50.00th=[ 489], 60.00th=[ 489], | 70.00th=[ 489], 80.00th=[ 489], 90.00th=[ 489], 95.00th=[ 489], | 99.00th=[ 489], 99.50th=[ 489], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.61%, ctx=17, 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=74.5MiB/s (78.1MB/s), 74.5MiB/s-74.5MiB/s (78.1MB/s-78.1MB/s), io=40.0MiB (41.9MB), run=537-537msec 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