== sanity test 398c: run fio to test AIO ================= 22:32:55 (1789180375) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.539486 s, 77.7 MB/s osc.lustre-OST0000-osc-ffff93ed11896800.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=147266: Fri Sep 11 22:35:39 2026 write: IOPS=16, BW=66.5KiB/s (68.1kB/s)(10.0MiB/153910msec); 0 zone resets slat (usec): min=29, max=23532, avg=210.98, stdev=902.24 clat (msec): min=91, max=1980, avg=961.35, stdev=250.64 lat (msec): min=91, max=1980, avg=961.57, stdev=250.67 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 592], 10.00th=[ 684], 20.00th=[ 768], | 30.00th=[ 827], 40.00th=[ 902], 50.00th=[ 961], 60.00th=[ 1020], | 70.00th=[ 1083], 80.00th=[ 1150], 90.00th=[ 1250], 95.00th=[ 1385], | 99.00th=[ 1636], 99.50th=[ 1787], 99.90th=[ 1938], 99.95th=[ 1955], | 99.99th=[ 1989] bw ( KiB/s): min= 7, max= 198, per=25.01%, avg=66.28, stdev=31.45, samples=304 iops : min= 1, max= 49, avg=16.12, stdev= 7.93, samples=304 lat (msec) : 100=0.04%, 250=0.66%, 500=2.89%, 750=14.41%, 1000=38.48% lat (msec) : 2000=43.52% cpu : usr=0.05%, sys=0.21%, ctx=1915, 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=147267: Fri Sep 11 22:35:39 2026 write: IOPS=16, BW=66.6KiB/s (68.2kB/s)(10.0MiB/153650msec); 0 zone resets slat (usec): min=26, max=19197, avg=196.07, stdev=780.44 clat (msec): min=228, max=2009, avg=959.12, stdev=247.99 lat (msec): min=228, max=2009, avg=959.32, stdev=247.99 clat percentiles (msec): | 1.00th=[ 249], 5.00th=[ 584], 10.00th=[ 667], 20.00th=[ 768], | 30.00th=[ 835], 40.00th=[ 902], 50.00th=[ 961], 60.00th=[ 1020], | 70.00th=[ 1083], 80.00th=[ 1150], 90.00th=[ 1250], 95.00th=[ 1368], | 99.00th=[ 1636], 99.50th=[ 1770], 99.90th=[ 1972], 99.95th=[ 1972], | 99.99th=[ 2005] bw ( KiB/s): min= 7, max= 256, per=25.27%, avg=66.98, stdev=31.86, samples=301 iops : min= 1, max= 64, avg=16.29, stdev= 8.02, samples=301 lat (msec) : 250=1.25%, 500=1.91%, 750=14.69%, 1000=38.59%, 2000=43.52% lat (msec) : >=2000=0.04% cpu : usr=0.06%, sys=0.22%, ctx=1809, 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=147268: Fri Sep 11 22:35:39 2026 write: IOPS=16, BW=66.5KiB/s (68.1kB/s)(10.0MiB/153908msec); 0 zone resets slat (usec): min=28, max=11824, avg=173.32, stdev=579.46 clat (msec): min=245, max=1945, avg=960.89, stdev=241.99 lat (msec): min=245, max=1945, avg=961.07, stdev=242.00 clat percentiles (msec): | 1.00th=[ 347], 5.00th=[ 600], 10.00th=[ 684], 20.00th=[ 768], | 30.00th=[ 835], 40.00th=[ 894], 50.00th=[ 953], 60.00th=[ 1020], | 70.00th=[ 1083], 80.00th=[ 1150], 90.00th=[ 1250], 95.00th=[ 1351], | 99.00th=[ 1620], 99.50th=[ 1754], 99.90th=[ 1905], 99.95th=[ 1905], | 99.99th=[ 1938] bw ( KiB/s): min= 7, max= 223, per=25.10%, avg=66.53, stdev=27.71, samples=303 iops : min= 1, max= 55, avg=16.18, stdev= 6.97, samples=303 lat (msec) : 250=0.62%, 500=2.50%, 750=14.22%, 1000=39.73%, 2000=42.93% cpu : usr=0.04%, sys=0.19%, ctx=1496, 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=147269: Fri Sep 11 22:35:39 2026 write: IOPS=16, BW=66.5KiB/s (68.1kB/s)(10.0MiB/154001msec); 0 zone resets slat (usec): min=21, max=14141, avg=189.67, stdev=679.18 clat (msec): min=222, max=1979, avg=961.47, stdev=242.73 lat (msec): min=222, max=1979, avg=961.66, stdev=242.74 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 625], 10.00th=[ 684], 20.00th=[ 768], | 30.00th=[ 827], 40.00th=[ 885], 50.00th=[ 961], 60.00th=[ 1020], | 70.00th=[ 1083], 80.00th=[ 1150], 90.00th=[ 1234], 95.00th=[ 1334], | 99.00th=[ 1653], 99.50th=[ 1854], 99.90th=[ 1905], 99.95th=[ 1905], | 99.99th=[ 1972] bw ( KiB/s): min= 7, max= 136, per=25.43%, avg=67.40, stdev=30.04, samples=299 iops : min= 1, max= 34, avg=16.40, stdev= 7.55, samples=299 lat (msec) : 250=0.62%, 500=2.73%, 750=13.79%, 1000=39.84%, 2000=43.01% cpu : usr=0.04%, sys=0.20%, ctx=1860, 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=266KiB/s (272kB/s), 66.5KiB/s-66.6KiB/s (68.1kB/s-68.2kB/s), io=40.0MiB (41.9MB), run=153650-154001msec 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=147310: Fri Sep 11 22:37:31 2026 read: IOPS=12, BW=48.9KiB/s (50.0kB/s)(5048KiB/103329msec) slat (usec): min=37, max=56988, avg=13083.13, stdev=7062.76 clat (msec): min=13, max=1648, avg=398.24, stdev=117.88 lat (msec): min=16, max=1657, avg=411.33, stdev=118.99 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 266], 10.00th=[ 292], 20.00th=[ 321], | 30.00th=[ 347], 40.00th=[ 368], 50.00th=[ 388], 60.00th=[ 409], | 70.00th=[ 439], 80.00th=[ 468], 90.00th=[ 510], 95.00th=[ 558], | 99.00th=[ 684], 99.50th=[ 735], 99.90th=[ 1569], 99.95th=[ 1653], | 99.99th=[ 1653] bw ( KiB/s): min= 7, max= 112, per=25.29%, avg=48.80, stdev=22.73, samples=203 iops : min= 1, max= 28, avg=11.74, stdev= 5.70, samples=203 write: IOPS=12, BW=50.2KiB/s (51.5kB/s)(5192KiB/103329msec); 0 zone resets slat (usec): min=33, max=16426, avg=257.69, stdev=821.63 clat (msec): min=108, max=2210, avg=872.19, stdev=259.21 lat (msec): min=109, max=2211, avg=872.45, stdev=259.23 clat percentiles (msec): | 1.00th=[ 313], 5.00th=[ 489], 10.00th=[ 567], 20.00th=[ 659], | 30.00th=[ 726], 40.00th=[ 810], 50.00th=[ 869], 60.00th=[ 936], | 70.00th=[ 995], 80.00th=[ 1062], 90.00th=[ 1150], 95.00th=[ 1267], | 99.00th=[ 1854], 99.50th=[ 1905], 99.90th=[ 2165], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 118, per=24.80%, avg=49.84, stdev=20.12, samples=204 iops : min= 1, max= 29, avg=12.00, stdev= 5.00, samples=204 lat (msec) : 20=0.16%, 50=0.12%, 100=0.23%, 250=1.68%, 500=43.87% lat (msec) : 750=19.73%, 1000=19.41%, 2000=14.65%, >=2000=0.16% cpu : usr=0.11%, sys=0.58%, ctx=4529, 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=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=147311: Fri Sep 11 22:37:31 2026 read: IOPS=12, BW=48.0KiB/s (49.2kB/s)(4976KiB/103562msec) slat (usec): min=2817, max=53683, avg=13024.22, stdev=6833.59 clat (msec): min=10, max=757, avg=392.48, stdev=95.27 lat (msec): min=21, max=771, avg=405.51, stdev=96.19 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 262], 10.00th=[ 292], 20.00th=[ 321], | 30.00th=[ 347], 40.00th=[ 368], 50.00th=[ 388], 60.00th=[ 409], | 70.00th=[ 435], 80.00th=[ 464], 90.00th=[ 506], 95.00th=[ 558], | 99.00th=[ 659], 99.50th=[ 701], 99.90th=[ 751], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 7, max= 135, per=24.57%, avg=47.42, stdev=22.69, samples=206 iops : min= 1, max= 33, avg=11.40, stdev= 5.67, samples=206 write: IOPS=12, BW=50.8KiB/s (52.0kB/s)(5264KiB/103562msec); 0 zone resets slat (usec): min=31, max=18646, avg=287.96, stdev=1256.40 clat (msec): min=138, max=2071, avg=873.88, stdev=246.27 lat (msec): min=138, max=2071, avg=874.17, stdev=246.26 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 506], 10.00th=[ 584], 20.00th=[ 667], | 30.00th=[ 735], 40.00th=[ 802], 50.00th=[ 877], 60.00th=[ 936], | 70.00th=[ 995], 80.00th=[ 1062], 90.00th=[ 1150], 95.00th=[ 1250], | 99.00th=[ 1603], 99.50th=[ 1804], 99.90th=[ 2056], 99.95th=[ 2072], | 99.99th=[ 2072] bw ( KiB/s): min= 7, max= 96, per=24.91%, avg=50.07, stdev=19.72, samples=206 iops : min= 1, max= 24, avg=12.06, stdev= 4.98, samples=206 lat (msec) : 20=0.12%, 50=0.08%, 100=0.35%, 250=1.68%, 500=43.24% lat (msec) : 750=19.57%, 1000=19.88%, 2000=14.92%, >=2000=0.16% cpu : usr=0.09%, sys=0.58%, ctx=4326, 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=147312: Fri Sep 11 22:37:31 2026 read: IOPS=12, BW=48.1KiB/s (49.3kB/s)(4984KiB/103527msec) slat (usec): min=2864, max=46066, avg=13093.04, stdev=6784.30 clat (msec): min=15, max=750, avg=392.96, stdev=92.44 lat (msec): min=22, max=759, avg=406.06, stdev=93.29 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 262], 10.00th=[ 288], 20.00th=[ 317], | 30.00th=[ 347], 40.00th=[ 368], 50.00th=[ 388], 60.00th=[ 414], | 70.00th=[ 435], 80.00th=[ 468], 90.00th=[ 514], 95.00th=[ 550], | 99.00th=[ 609], 99.50th=[ 651], 99.90th=[ 743], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 7, max= 120, per=25.10%, avg=48.44, stdev=22.17, samples=202 iops : min= 1, max= 30, avg=11.65, stdev= 5.54, samples=202 write: IOPS=12, BW=50.8KiB/s (51.0kB/s)(5256KiB/103527msec); 0 zone resets slat (usec): min=26, max=20022, avg=258.62, stdev=980.69 clat (msec): min=113, max=2084, avg=873.56, stdev=254.78 lat (msec): min=113, max=2084, avg=873.82, stdev=254.78 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 481], 10.00th=[ 575], 20.00th=[ 659], | 30.00th=[ 743], 40.00th=[ 810], 50.00th=[ 869], 60.00th=[ 927], | 70.00th=[ 986], 80.00th=[ 1062], 90.00th=[ 1167], 95.00th=[ 1301], | 99.00th=[ 1670], 99.50th=[ 1871], 99.90th=[ 2039], 99.95th=[ 2089], | 99.99th=[ 2089] bw ( KiB/s): min= 8, max= 112, per=24.89%, avg=50.03, stdev=19.30, samples=204 iops : min= 2, max= 28, avg=12.05, stdev= 4.85, samples=204 lat (msec) : 20=0.04%, 50=0.16%, 100=0.23%, 250=1.68%, 500=43.44% lat (msec) : 750=19.30%, 1000=20.98%, 2000=14.10%, >=2000=0.08% cpu : usr=0.08%, sys=0.56%, ctx=4342, 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=147313: Fri Sep 11 22:37:31 2026 read: IOPS=12, BW=48.9KiB/s (50.1kB/s)(5060KiB/103392msec) slat (usec): min=2452, max=54028, avg=13080.09, stdev=7201.11 clat (msec): min=55, max=784, avg=397.49, stdev=93.08 lat (msec): min=58, max=814, avg=410.58, stdev=94.34 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 264], 10.00th=[ 296], 20.00th=[ 321], | 30.00th=[ 347], 40.00th=[ 372], 50.00th=[ 388], 60.00th=[ 409], | 70.00th=[ 435], 80.00th=[ 468], 90.00th=[ 514], 95.00th=[ 567], | 99.00th=[ 667], 99.50th=[ 709], 99.90th=[ 743], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 7, max= 111, per=25.57%, avg=49.36, stdev=21.54, samples=202 iops : min= 1, max= 27, avg=11.89, stdev= 5.37, samples=202 write: IOPS=12, BW=50.1KiB/s (51.3kB/s)(5180KiB/103392msec); 0 zone resets slat (usec): min=31, max=21477, avg=275.11, stdev=1109.44 clat (msec): min=98, max=1922, avg=874.17, stdev=253.49 lat (msec): min=100, max=1922, avg=874.44, stdev=253.47 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 481], 10.00th=[ 567], 20.00th=[ 659], | 30.00th=[ 743], 40.00th=[ 802], 50.00th=[ 860], 60.00th=[ 936], | 70.00th=[ 1003], 80.00th=[ 1070], 90.00th=[ 1167], 95.00th=[ 1284], | 99.00th=[ 1636], 99.50th=[ 1737], 99.90th=[ 1905], 99.95th=[ 1921], | 99.99th=[ 1921] bw ( KiB/s): min= 7, max= 104, per=24.55%, avg=49.35, stdev=18.96, samples=205 iops : min= 1, max= 26, avg=11.88, stdev= 4.78, samples=205 lat (msec) : 100=0.27%, 250=1.72%, 500=44.10%, 750=19.34%, 1000=19.69% lat (msec) : 2000=14.88% cpu : usr=0.09%, sys=0.54%, ctx=4169, 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=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=194KiB/s (198kB/s), 48.0KiB/s-48.9KiB/s (49.2kB/s-50.1kB/s), io=19.6MiB (20.5MB), run=103329-103562msec WRITE: bw=202KiB/s (207kB/s), 50.1KiB/s-50.8KiB/s (51.3kB/s-52.0kB/s), io=20.4MiB (21.4MB), run=103329-103562msec 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=147334: Fri Sep 11 22:37:42 2026 read: IOPS=1, BW=60.1MiB/s (62.0MB/s)(40.0MiB/666msec) slat (nsec): min=46320k, max=46320k, avg=46320218.00, stdev= 0.00 clat (nsec): min=573997k, max=573997k, avg=573996899.00, stdev= 0.00 lat (nsec): min=620321k, max=620321k, avg=620321161.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 575], 5.00th=[ 575], 10.00th=[ 575], 20.00th=[ 575], | 30.00th=[ 575], 40.00th=[ 575], 50.00th=[ 575], 60.00th=[ 575], | 70.00th=[ 575], 80.00th=[ 575], 90.00th=[ 575], 95.00th=[ 575], | 99.00th=[ 575], 99.50th=[ 575], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.65%, 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