== sanity test 398c: run fio to test AIO ================= 14:10:18 (1788891018) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.251564 s, 167 MB/s osc.lustre-OST0000-osc-ffff8b0042d67000.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=160504: Tue Sep 8 14:11:40 2026 write: IOPS=33, BW=133KiB/s (136kB/s)(10.0MiB/76986msec); 0 zone resets slat (usec): min=22, max=13932, avg=190.35, stdev=477.28 clat (msec): min=88, max=922, avg=480.80, stdev=127.89 lat (msec): min=89, max=922, avg=480.99, stdev=127.91 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 275], 10.00th=[ 342], 20.00th=[ 388], | 30.00th=[ 422], 40.00th=[ 451], 50.00th=[ 477], 60.00th=[ 506], | 70.00th=[ 535], 80.00th=[ 575], 90.00th=[ 634], 95.00th=[ 684], | 99.00th=[ 860], 99.50th=[ 877], 99.90th=[ 919], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 15, max= 423, per=24.88%, avg=131.86, stdev=41.62, samples=153 iops : min= 3, max= 105, avg=32.56, stdev=10.43, samples=153 lat (msec) : 100=0.62%, 250=3.59%, 500=54.14%, 750=39.02%, 1000=2.62% cpu : usr=0.08%, sys=0.44%, ctx=2456, 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=160505: Tue Sep 8 14:11:40 2026 write: IOPS=33, BW=133KiB/s (136kB/s)(10.0MiB/77164msec); 0 zone resets slat (usec): min=23, max=13802, avg=213.67, stdev=502.37 clat (msec): min=30, max=958, avg=481.75, stdev=126.36 lat (msec): min=30, max=958, avg=481.96, stdev=126.36 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 284], 10.00th=[ 338], 20.00th=[ 388], | 30.00th=[ 422], 40.00th=[ 451], 50.00th=[ 477], 60.00th=[ 502], | 70.00th=[ 531], 80.00th=[ 575], 90.00th=[ 634], 95.00th=[ 693], | 99.00th=[ 869], 99.50th=[ 902], 99.90th=[ 953], 99.95th=[ 953], | 99.99th=[ 961] bw ( KiB/s): min= 31, max= 298, per=24.89%, avg=131.90, stdev=36.77, samples=153 iops : min= 7, max= 74, avg=32.57, stdev= 9.24, samples=153 lat (msec) : 50=0.04%, 100=0.20%, 250=3.16%, 500=56.13%, 750=37.58% lat (msec) : 1000=2.89% cpu : usr=0.09%, sys=0.47%, ctx=3193, 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=160506: Tue Sep 8 14:11:40 2026 write: IOPS=33, BW=133KiB/s (136kB/s)(10.0MiB/77206msec); 0 zone resets slat (usec): min=22, max=8631, avg=195.64, stdev=461.62 clat (msec): min=141, max=958, avg=481.97, stdev=125.73 lat (msec): min=141, max=958, avg=482.16, stdev=125.74 clat percentiles (msec): | 1.00th=[ 192], 5.00th=[ 268], 10.00th=[ 334], 20.00th=[ 388], | 30.00th=[ 422], 40.00th=[ 447], 50.00th=[ 472], 60.00th=[ 506], | 70.00th=[ 535], 80.00th=[ 575], 90.00th=[ 634], 95.00th=[ 701], | 99.00th=[ 869], 99.50th=[ 885], 99.90th=[ 961], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 56, max= 256, per=24.78%, avg=131.34, stdev=36.42, samples=153 iops : min= 14, max= 64, avg=32.44, stdev= 9.15, samples=153 lat (msec) : 250=3.32%, 500=55.47%, 750=38.59%, 1000=2.62% cpu : usr=0.08%, sys=0.44%, ctx=2659, 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=160507: Tue Sep 8 14:11:40 2026 write: IOPS=33, BW=133KiB/s (136kB/s)(10.0MiB/77189msec); 0 zone resets slat (usec): min=22, max=11841, avg=200.80, stdev=490.62 clat (msec): min=161, max=956, avg=481.80, stdev=125.74 lat (msec): min=161, max=956, avg=482.00, stdev=125.75 clat percentiles (msec): | 1.00th=[ 188], 5.00th=[ 262], 10.00th=[ 342], 20.00th=[ 388], | 30.00th=[ 422], 40.00th=[ 447], 50.00th=[ 477], 60.00th=[ 502], | 70.00th=[ 531], 80.00th=[ 575], 90.00th=[ 634], 95.00th=[ 693], | 99.00th=[ 869], 99.50th=[ 911], 99.90th=[ 927], 99.95th=[ 927], | 99.99th=[ 953] bw ( KiB/s): min= 31, max= 264, per=24.81%, avg=131.48, stdev=33.99, samples=153 iops : min= 7, max= 66, avg=32.47, stdev= 8.57, samples=153 lat (msec) : 250=4.06%, 500=54.84%, 750=38.09%, 1000=3.01% cpu : usr=0.08%, sys=0.44%, ctx=2886, 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 Run status group 0 (all jobs): WRITE: bw=531KiB/s (543kB/s), 133KiB/s-133KiB/s (136kB/s-136kB/s), io=40.0MiB (41.9MB), run=76986-77206msec 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=160528: Tue Sep 8 14:12:39 2026 read: IOPS=23, BW=92.8KiB/s (95.1kB/s)(5048KiB/54368msec) slat (usec): min=20, max=32226, avg=7851.92, stdev=3937.91 clat (msec): min=5, max=409, avg=213.40, stdev=59.74 lat (msec): min=10, max=425, avg=221.25, stdev=60.82 clat percentiles (msec): | 1.00th=[ 30], 5.00th=[ 125], 10.00th=[ 144], 20.00th=[ 165], | 30.00th=[ 184], 40.00th=[ 199], 50.00th=[ 213], 60.00th=[ 228], | 70.00th=[ 243], 80.00th=[ 262], 90.00th=[ 292], 95.00th=[ 313], | 99.00th=[ 368], 99.50th=[ 384], 99.90th=[ 397], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 23, max= 175, per=25.22%, avg=92.29, stdev=31.96, samples=108 iops : min= 5, max= 43, avg=22.71, stdev= 8.00, samples=108 write: IOPS=23, BW=95.5KiB/s (97.8kB/s)(5192KiB/54368msec); 0 zone resets slat (usec): min=22, max=13716, avg=241.91, stdev=556.55 clat (msec): min=51, max=972, avg=454.32, stdev=139.07 lat (msec): min=52, max=972, avg=454.56, stdev=139.07 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 245], 10.00th=[ 279], 20.00th=[ 334], | 30.00th=[ 380], 40.00th=[ 418], 50.00th=[ 447], 60.00th=[ 481], | 70.00th=[ 518], 80.00th=[ 567], 90.00th=[ 634], 95.00th=[ 693], | 99.00th=[ 827], 99.50th=[ 869], 99.90th=[ 902], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 23, max= 199, per=24.78%, avg=94.43, stdev=32.43, samples=108 iops : min= 5, max= 49, avg=23.25, stdev= 8.17, samples=108 lat (msec) : 10=0.04%, 20=0.12%, 50=0.55%, 100=0.90%, 250=38.01% lat (msec) : 500=42.97%, 750=16.02%, 1000=1.41% cpu : usr=0.17%, sys=1.10%, ctx=5094, 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=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=160529: Tue Sep 8 14:12:39 2026 read: IOPS=22, BW=90.9KiB/s (93.1kB/s)(4976KiB/54727msec) slat (usec): min=1800, max=28476, avg=7685.60, stdev=3896.72 clat (msec): min=16, max=398, avg=214.82, stdev=59.03 lat (msec): min=20, max=404, avg=222.51, stdev=59.77 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 124], 10.00th=[ 140], 20.00th=[ 167], | 30.00th=[ 182], 40.00th=[ 199], 50.00th=[ 211], 60.00th=[ 228], | 70.00th=[ 245], 80.00th=[ 266], 90.00th=[ 292], 95.00th=[ 313], | 99.00th=[ 363], 99.50th=[ 376], 99.90th=[ 393], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 32, max= 200, per=24.60%, avg=90.05, stdev=34.32, samples=108 iops : min= 8, max= 50, avg=22.16, stdev= 8.55, samples=108 write: IOPS=24, BW=96.2KiB/s (98.5kB/s)(5264KiB/54727msec); 0 zone resets slat (usec): min=26, max=6337, avg=233.27, stdev=428.24 clat (msec): min=143, max=905, avg=453.98, stdev=136.00 lat (msec): min=143, max=905, avg=454.22, stdev=136.03 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 249], 10.00th=[ 279], 20.00th=[ 330], | 30.00th=[ 380], 40.00th=[ 418], 50.00th=[ 447], 60.00th=[ 477], | 70.00th=[ 514], 80.00th=[ 567], 90.00th=[ 634], 95.00th=[ 701], | 99.00th=[ 793], 99.50th=[ 852], 99.90th=[ 894], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 31, max= 191, per=25.03%, avg=95.36, stdev=30.21, samples=108 iops : min= 7, max= 47, avg=23.48, stdev= 7.60, samples=108 lat (msec) : 20=0.04%, 50=0.20%, 100=0.47%, 250=37.66%, 500=44.26% lat (msec) : 750=16.17%, 1000=1.21% cpu : usr=0.19%, sys=1.08%, ctx=5164, 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=160530: Tue Sep 8 14:12:39 2026 read: IOPS=22, BW=91.0KiB/s (93.2kB/s)(4984KiB/54749msec) slat (usec): min=1630, max=25411, avg=7803.31, stdev=3869.72 clat (msec): min=13, max=397, avg=212.25, stdev=58.37 lat (msec): min=17, max=403, avg=220.07, stdev=59.30 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 125], 10.00th=[ 140], 20.00th=[ 165], | 30.00th=[ 182], 40.00th=[ 197], 50.00th=[ 211], 60.00th=[ 224], | 70.00th=[ 243], 80.00th=[ 262], 90.00th=[ 288], 95.00th=[ 313], | 99.00th=[ 359], 99.50th=[ 368], 99.90th=[ 393], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 32, max= 208, per=24.68%, avg=90.33, stdev=37.00, samples=108 iops : min= 8, max= 52, avg=22.22, stdev= 9.30, samples=108 write: IOPS=24, BW=96.0KiB/s (98.3kB/s)(5256KiB/54749msec); 0 zone resets slat (usec): min=29, max=6684, avg=255.78, stdev=458.58 clat (msec): min=104, max=905, avg=456.55, stdev=137.06 lat (msec): min=104, max=905, avg=456.81, stdev=137.07 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 245], 10.00th=[ 275], 20.00th=[ 334], | 30.00th=[ 380], 40.00th=[ 418], 50.00th=[ 451], 60.00th=[ 481], | 70.00th=[ 523], 80.00th=[ 575], 90.00th=[ 634], 95.00th=[ 701], | 99.00th=[ 802], 99.50th=[ 818], 99.90th=[ 902], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 39, max= 199, per=24.76%, avg=94.32, stdev=28.01, samples=108 iops : min= 9, max= 49, avg=23.22, stdev= 7.03, samples=108 lat (msec) : 20=0.08%, 50=0.31%, 100=0.47%, 250=38.05%, 500=42.93% lat (msec) : 750=16.88%, 1000=1.29% cpu : usr=0.16%, sys=1.17%, ctx=5234, 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=160531: Tue Sep 8 14:12:39 2026 read: IOPS=23, BW=92.0KiB/s (95.2kB/s)(5060KiB/54426msec) slat (usec): min=1803, max=27095, avg=7686.12, stdev=3791.39 clat (msec): min=10, max=417, avg=213.78, stdev=58.26 lat (msec): min=18, max=430, avg=221.47, stdev=59.19 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 126], 10.00th=[ 142], 20.00th=[ 165], | 30.00th=[ 182], 40.00th=[ 197], 50.00th=[ 211], 60.00th=[ 226], | 70.00th=[ 245], 80.00th=[ 264], 90.00th=[ 288], 95.00th=[ 313], | 99.00th=[ 363], 99.50th=[ 384], 99.90th=[ 409], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 31, max= 176, per=25.33%, avg=92.69, stdev=34.19, samples=108 iops : min= 7, max= 44, avg=22.81, stdev= 8.61, samples=108 write: IOPS=23, BW=95.2KiB/s (97.5kB/s)(5180KiB/54426msec); 0 zone resets slat (usec): min=26, max=14169, avg=254.57, stdev=626.84 clat (msec): min=93, max=898, avg=454.79, stdev=133.36 lat (msec): min=94, max=898, avg=455.05, stdev=133.37 clat percentiles (msec): | 1.00th=[ 209], 5.00th=[ 251], 10.00th=[ 288], 20.00th=[ 338], | 30.00th=[ 380], 40.00th=[ 414], 50.00th=[ 443], 60.00th=[ 477], | 70.00th=[ 518], 80.00th=[ 567], 90.00th=[ 634], 95.00th=[ 693], | 99.00th=[ 818], 99.50th=[ 860], 99.90th=[ 894], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 31, max= 183, per=24.76%, avg=94.35, stdev=28.34, samples=108 iops : min= 7, max= 45, avg=23.23, stdev= 7.11, samples=108 lat (msec) : 20=0.04%, 50=0.20%, 100=0.43%, 250=38.36%, 500=43.79% lat (msec) : 750=15.94%, 1000=1.25% cpu : usr=0.16%, sys=1.12%, ctx=5257, majf=0, minf=16 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=367KiB/s (375kB/s), 90.9KiB/s-92.0KiB/s (93.1kB/s-95.2kB/s), io=19.6MiB (20.5MB), run=54368-54749msec WRITE: bw=382KiB/s (391kB/s), 95.2KiB/s-96.2KiB/s (97.5kB/s-98.5kB/s), io=20.4MiB (21.4MB), run=54368-54749msec 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=160543: Tue Sep 8 14:12:46 2026 read: IOPS=3, BW=132MiB/s (138MB/s)(40.0MiB/304msec) slat (nsec): min=27366k, max=27366k, avg=27366312.00, stdev= 0.00 clat (nsec): min=258962k, max=258962k, avg=258961745.00, stdev= 0.00 lat (nsec): min=286333k, max=286333k, avg=286333120.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 259], 5.00th=[ 259], 10.00th=[ 259], 20.00th=[ 259], | 30.00th=[ 259], 40.00th=[ 259], 50.00th=[ 259], 60.00th=[ 259], | 70.00th=[ 259], 80.00th=[ 259], 90.00th=[ 259], 95.00th=[ 259], | 99.00th=[ 259], 99.50th=[ 259], 99.90th=[ 259], 99.95th=[ 259], | 99.99th=[ 259] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.96%, ctx=7, 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=132MiB/s (138MB/s), 132MiB/s-132MiB/s (138MB/s-138MB/s), io=40.0MiB (41.9MB), run=304-304msec 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