== sanity test 398c: run fio to test AIO ================= 19:05:02 (1784588702) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.39785 s, 105 MB/s osc.lustre-OST0000-osc-ffff8abdf1cf3000.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=144923: Mon Jul 20 19:07:45 2026 write: IOPS=16, BW=66.5KiB/s (68.1kB/s)(10.0MiB/154068msec); 0 zone resets slat (usec): min=36, max=15538, avg=319.87, stdev=889.22 clat (msec): min=140, max=1922, avg=962.22, stdev=244.20 lat (msec): min=141, max=1922, avg=962.54, stdev=244.22 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 617], 10.00th=[ 693], 20.00th=[ 776], | 30.00th=[ 835], 40.00th=[ 894], 50.00th=[ 953], 60.00th=[ 1003], | 70.00th=[ 1070], 80.00th=[ 1150], 90.00th=[ 1267], 95.00th=[ 1385], | 99.00th=[ 1636], 99.50th=[ 1670], 99.90th=[ 1905], 99.95th=[ 1921], | 99.99th=[ 1921] bw ( KiB/s): min= 7, max= 230, per=25.08%, avg=66.46, stdev=30.54, samples=303 iops : min= 1, max= 57, avg=16.16, stdev= 7.68, samples=303 lat (msec) : 250=0.62%, 500=2.54%, 750=13.16%, 1000=43.12%, 2000=40.55% cpu : usr=0.05%, sys=0.28%, ctx=2089, 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=144924: Mon Jul 20 19:07:45 2026 write: IOPS=16, BW=66.4KiB/s (67.0kB/s)(10.0MiB/154211msec); 0 zone resets slat (usec): min=49, max=19313, avg=321.19, stdev=971.90 clat (msec): min=169, max=1935, avg=962.53, stdev=245.48 lat (msec): min=169, max=1935, avg=962.85, stdev=245.48 clat percentiles (msec): | 1.00th=[ 414], 5.00th=[ 575], 10.00th=[ 684], 20.00th=[ 768], | 30.00th=[ 835], 40.00th=[ 902], 50.00th=[ 953], 60.00th=[ 1011], | 70.00th=[ 1070], 80.00th=[ 1150], 90.00th=[ 1267], 95.00th=[ 1368], | 99.00th=[ 1636], 99.50th=[ 1687], 99.90th=[ 1888], 99.95th=[ 1888], | 99.99th=[ 1938] bw ( KiB/s): min= 7, max= 128, per=26.14%, avg=69.27, stdev=31.62, samples=291 iops : min= 1, max= 32, avg=16.86, stdev= 7.93, samples=291 lat (msec) : 250=0.62%, 500=1.56%, 750=15.31%, 1000=40.74%, 2000=41.76% cpu : usr=0.05%, sys=0.30%, ctx=2167, 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=144925: Mon Jul 20 19:07:45 2026 write: IOPS=16, BW=66.5KiB/s (68.1kB/s)(10.0MiB/154027msec); 0 zone resets slat (usec): min=40, max=24321, avg=333.66, stdev=1029.36 clat (msec): min=69, max=1935, avg=961.36, stdev=236.09 lat (msec): min=69, max=1935, avg=961.70, stdev=236.04 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 617], 10.00th=[ 701], 20.00th=[ 776], | 30.00th=[ 835], 40.00th=[ 894], 50.00th=[ 944], 60.00th=[ 1011], | 70.00th=[ 1070], 80.00th=[ 1133], 90.00th=[ 1250], 95.00th=[ 1368], | 99.00th=[ 1603], 99.50th=[ 1670], 99.90th=[ 1854], 99.95th=[ 1938], | 99.99th=[ 1938] bw ( KiB/s): min= 8, max= 144, per=24.84%, avg=65.83, stdev=27.42, samples=306 iops : min= 2, max= 36, avg=16.00, stdev= 6.87, samples=306 lat (msec) : 100=0.04%, 250=0.20%, 500=2.34%, 750=14.06%, 1000=42.38% lat (msec) : 2000=40.98% cpu : usr=0.05%, sys=0.31%, ctx=2253, 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=144926: Mon Jul 20 19:07:45 2026 write: IOPS=16, BW=66.4KiB/s (67.0kB/s)(10.0MiB/154213msec); 0 zone resets slat (usec): min=43, max=15850, avg=290.32, stdev=839.07 clat (msec): min=330, max=1930, avg=962.56, stdev=233.82 lat (msec): min=330, max=1930, avg=962.85, stdev=233.84 clat percentiles (msec): | 1.00th=[ 414], 5.00th=[ 617], 10.00th=[ 693], 20.00th=[ 776], | 30.00th=[ 827], 40.00th=[ 894], 50.00th=[ 953], 60.00th=[ 1003], | 70.00th=[ 1070], 80.00th=[ 1150], 90.00th=[ 1250], 95.00th=[ 1368], | 99.00th=[ 1586], 99.50th=[ 1687], 99.90th=[ 1854], 99.95th=[ 1854], | 99.99th=[ 1938] bw ( KiB/s): min= 15, max= 128, per=25.01%, avg=66.29, stdev=26.34, samples=304 iops : min= 3, max= 32, avg=16.12, stdev= 6.59, samples=304 lat (msec) : 500=1.91%, 750=13.91%, 1000=43.52%, 2000=40.66% cpu : usr=0.06%, sys=0.28%, ctx=2015, 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=266KiB/s (272kB/s), 66.4KiB/s-66.5KiB/s (67.0kB/s-68.1kB/s), io=40.0MiB (41.9MB), run=154027-154213msec 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=144958: Mon Jul 20 19:09:40 2026 read: IOPS=12, BW=48.1KiB/s (49.3kB/s)(5048KiB/104935msec) slat (usec): min=63, max=57701, avg=14008.36, stdev=7629.00 clat (msec): min=17, max=1571, avg=415.81, stdev=134.00 lat (msec): min=25, max=1610, avg=429.82, stdev=135.37 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 259], 10.00th=[ 292], 20.00th=[ 321], | 30.00th=[ 351], 40.00th=[ 380], 50.00th=[ 405], 60.00th=[ 426], | 70.00th=[ 456], 80.00th=[ 493], 90.00th=[ 558], 95.00th=[ 617], | 99.00th=[ 827], 99.50th=[ 877], 99.90th=[ 1569], 99.95th=[ 1569], | 99.99th=[ 1569] bw ( KiB/s): min= 8, max= 119, per=25.49%, avg=48.17, stdev=21.74, samples=206 iops : min= 2, max= 29, avg=11.61, stdev= 5.51, samples=206 write: IOPS=12, BW=49.5KiB/s (50.7kB/s)(5192KiB/104935msec); 0 zone resets slat (usec): min=53, max=19723, avg=408.72, stdev=1150.50 clat (msec): min=101, max=2341, avg=873.67, stdev=262.48 lat (msec): min=101, max=2341, avg=874.08, stdev=262.47 clat percentiles (msec): | 1.00th=[ 347], 5.00th=[ 477], 10.00th=[ 550], 20.00th=[ 651], | 30.00th=[ 743], 40.00th=[ 810], 50.00th=[ 869], 60.00th=[ 927], | 70.00th=[ 986], 80.00th=[ 1062], 90.00th=[ 1183], 95.00th=[ 1334], | 99.00th=[ 1552], 99.50th=[ 1720], 99.90th=[ 2333], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 7, max= 103, per=25.18%, avg=49.61, stdev=21.32, samples=205 iops : min= 1, max= 25, avg=11.97, stdev= 5.35, samples=205 lat (msec) : 20=0.08%, 50=0.16%, 100=0.27%, 250=1.88%, 500=40.86% lat (msec) : 750=21.05%, 1000=21.09%, 2000=14.45%, >=2000=0.16% cpu : usr=0.11%, sys=0.74%, ctx=4839, 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=144959: Mon Jul 20 19:09:40 2026 read: IOPS=11, BW=47.1KiB/s (48.2kB/s)(4976KiB/105756msec) slat (usec): min=2551, max=63574, avg=14081.10, stdev=7475.78 clat (msec): min=20, max=903, avg=419.84, stdev=107.78 lat (msec): min=32, max=912, avg=433.93, stdev=109.05 clat percentiles (msec): | 1.00th=[ 194], 5.00th=[ 279], 10.00th=[ 300], 20.00th=[ 338], | 30.00th=[ 363], 40.00th=[ 384], 50.00th=[ 409], 60.00th=[ 430], | 70.00th=[ 460], 80.00th=[ 502], 90.00th=[ 558], 95.00th=[ 609], | 99.00th=[ 743], 99.50th=[ 818], 99.90th=[ 860], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 7, max= 103, per=24.81%, avg=46.89, stdev=20.68, samples=208 iops : min= 1, max= 25, avg=11.29, stdev= 5.20, samples=208 write: IOPS=12, BW=49.8KiB/s (50.0kB/s)(5264KiB/105756msec); 0 zone resets slat (usec): min=51, max=16828, avg=427.17, stdev=1108.84 clat (msec): min=326, max=1590, avg=872.81, stdev=237.54 lat (msec): min=326, max=1591, avg=873.24, stdev=237.64 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 506], 10.00th=[ 567], 20.00th=[ 667], | 30.00th=[ 735], 40.00th=[ 810], 50.00th=[ 869], 60.00th=[ 927], | 70.00th=[ 986], 80.00th=[ 1062], 90.00th=[ 1167], 95.00th=[ 1301], | 99.00th=[ 1502], 99.50th=[ 1552], 99.90th=[ 1586], 99.95th=[ 1586], | 99.99th=[ 1586] bw ( KiB/s): min= 8, max= 104, per=25.13%, avg=49.51, stdev=20.27, samples=209 iops : min= 2, max= 26, avg=11.95, stdev= 5.09, samples=209 lat (msec) : 50=0.04%, 100=0.23%, 250=1.05%, 500=39.96%, 750=23.09% lat (msec) : 1000=21.68%, 2000=13.95% cpu : usr=0.11%, sys=0.72%, ctx=4782, 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=144960: Mon Jul 20 19:09:40 2026 read: IOPS=11, BW=47.2KiB/s (48.3kB/s)(4984KiB/105635msec) slat (usec): min=2463, max=70678, avg=14266.56, stdev=7665.15 clat (msec): min=26, max=1073, avg=415.79, stdev=114.35 lat (msec): min=43, max=1089, avg=430.06, stdev=115.91 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 275], 10.00th=[ 300], 20.00th=[ 326], | 30.00th=[ 355], 40.00th=[ 380], 50.00th=[ 405], 60.00th=[ 426], | 70.00th=[ 451], 80.00th=[ 493], 90.00th=[ 558], 95.00th=[ 625], | 99.00th=[ 818], 99.50th=[ 877], 99.90th=[ 927], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7, max= 119, per=25.08%, avg=47.41, stdev=21.80, samples=207 iops : min= 1, max= 29, avg=11.42, stdev= 5.53, samples=207 write: IOPS=12, BW=49.8KiB/s (50.9kB/s)(5256KiB/105635msec); 0 zone resets slat (usec): min=57, max=18241, avg=394.57, stdev=997.21 clat (msec): min=265, max=1593, avg=875.57, stdev=237.81 lat (msec): min=265, max=1597, avg=875.97, stdev=237.84 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 506], 10.00th=[ 575], 20.00th=[ 676], | 30.00th=[ 743], 40.00th=[ 818], 50.00th=[ 869], 60.00th=[ 927], | 70.00th=[ 986], 80.00th=[ 1070], 90.00th=[ 1183], 95.00th=[ 1284], | 99.00th=[ 1502], 99.50th=[ 1536], 99.90th=[ 1569], 99.95th=[ 1586], | 99.99th=[ 1586] bw ( KiB/s): min= 8, max= 104, per=24.88%, avg=49.01, stdev=18.77, samples=210 iops : min= 2, max= 26, avg=11.82, stdev= 4.77, samples=210 lat (msec) : 50=0.08%, 100=0.16%, 250=1.05%, 500=40.55%, 750=21.88% lat (msec) : 1000=21.68%, 2000=14.61% cpu : usr=0.10%, sys=0.69%, ctx=4596, 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=144961: Mon Jul 20 19:09:40 2026 read: IOPS=12, BW=48.0KiB/s (49.2kB/s)(5060KiB/105371msec) slat (usec): min=2810, max=57241, avg=14009.63, stdev=7474.09 clat (msec): min=7, max=936, avg=413.26, stdev=108.27 lat (msec): min=16, max=955, avg=427.28, stdev=109.78 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 275], 10.00th=[ 296], 20.00th=[ 330], | 30.00th=[ 359], 40.00th=[ 380], 50.00th=[ 401], 60.00th=[ 422], | 70.00th=[ 451], 80.00th=[ 485], 90.00th=[ 567], 95.00th=[ 609], | 99.00th=[ 726], 99.50th=[ 835], 99.90th=[ 927], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 7, max= 112, per=25.47%, avg=48.14, stdev=22.58, samples=207 iops : min= 1, max= 28, avg=11.60, stdev= 5.71, samples=207 write: IOPS=12, BW=49.2KiB/s (50.3kB/s)(5180KiB/105371msec); 0 zone resets slat (usec): min=50, max=13168, avg=385.01, stdev=941.08 clat (msec): min=302, max=1948, avg=881.42, stdev=249.36 lat (msec): min=302, max=1948, avg=881.81, stdev=249.35 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 493], 10.00th=[ 567], 20.00th=[ 667], | 30.00th=[ 743], 40.00th=[ 827], 50.00th=[ 877], 60.00th=[ 927], | 70.00th=[ 986], 80.00th=[ 1083], 90.00th=[ 1183], 95.00th=[ 1318], | 99.00th=[ 1536], 99.50th=[ 1586], 99.90th=[ 1938], 99.95th=[ 1955], | 99.99th=[ 1955] bw ( KiB/s): min= 7, max= 96, per=24.75%, avg=48.75, stdev=18.83, samples=208 iops : min= 1, max= 24, avg=11.76, stdev= 4.77, samples=208 lat (msec) : 10=0.04%, 20=0.08%, 50=0.16%, 100=0.08%, 250=0.90% lat (msec) : 500=42.42%, 750=21.05%, 1000=20.82%, 2000=14.45% cpu : usr=0.11%, sys=0.76%, ctx=4935, 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=190KiB/s (194kB/s), 47.1KiB/s-48.1KiB/s (48.2kB/s-49.3kB/s), io=19.6MiB (20.5MB), run=104935-105756msec WRITE: bw=198KiB/s (202kB/s), 49.2KiB/s-49.8KiB/s (50.3kB/s-50.0kB/s), io=20.4MiB (21.4MB), run=104935-105756msec 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=144981: Mon Jul 20 19:09:49 2026 read: IOPS=1, BW=74.5MiB/s (78.1MB/s)(40.0MiB/537msec) slat (nsec): min=45212k, max=45212k, avg=45212321.00, stdev= 0.00 clat (nsec): min=476917k, max=476917k, avg=476917309.00, stdev= 0.00 lat (nsec): min=522135k, max=522135k, avg=522134517.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 477], 5.00th=[ 477], 10.00th=[ 477], 20.00th=[ 477], | 30.00th=[ 477], 40.00th=[ 477], 50.00th=[ 477], 60.00th=[ 477], | 70.00th=[ 477], 80.00th=[ 477], 90.00th=[ 477], 95.00th=[ 477], | 99.00th=[ 477], 99.50th=[ 477], 99.90th=[ 477], 99.95th=[ 477], | 99.99th=[ 477] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.05%, 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=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