== sanity test 398c: run fio to test AIO ================= 19:37:04 (1787701024) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.419464 s, 100 MB/s osc.lustre-OST0000-osc-ffff9c67e4b15800.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=145521: Tue Aug 25 19:40:08 2026 write: IOPS=14, BW=59.3KiB/s (60.7kB/s)(10.0MiB/172757msec); 0 zone resets slat (usec): min=23, max=19488, avg=171.23, stdev=734.57 clat (msec): min=300, max=2233, avg=1077.71, stdev=284.43 lat (msec): min=300, max=2233, avg=1077.88, stdev=284.44 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 634], 10.00th=[ 760], 20.00th=[ 877], | 30.00th=[ 927], 40.00th=[ 1003], 50.00th=[ 1062], 60.00th=[ 1116], | 70.00th=[ 1200], 80.00th=[ 1284], 90.00th=[ 1418], 95.00th=[ 1569], | 99.00th=[ 1921], 99.50th=[ 1989], 99.90th=[ 2140], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 7, max= 199, per=25.24%, avg=59.57, stdev=30.97, samples=338 iops : min= 1, max= 49, avg=14.43, stdev= 7.77, samples=338 lat (msec) : 500=3.01%, 750=6.05%, 1000=30.27%, 2000=60.20%, >=2000=0.47% cpu : usr=0.04%, sys=0.17%, ctx=1368, 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=145522: Tue Aug 25 19:40:08 2026 write: IOPS=14, BW=59.1KiB/s (60.5kB/s)(10.0MiB/173269msec); 0 zone resets slat (usec): min=27, max=12576, avg=166.44, stdev=588.48 clat (msec): min=303, max=2474, avg=1081.11, stdev=288.80 lat (msec): min=303, max=2474, avg=1081.28, stdev=288.83 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 651], 10.00th=[ 760], 20.00th=[ 869], | 30.00th=[ 944], 40.00th=[ 1011], 50.00th=[ 1070], 60.00th=[ 1133], | 70.00th=[ 1200], 80.00th=[ 1284], 90.00th=[ 1435], 95.00th=[ 1552], | 99.00th=[ 1955], 99.50th=[ 2072], 99.90th=[ 2299], 99.95th=[ 2467], | 99.99th=[ 2467] bw ( KiB/s): min= 7, max= 254, per=25.30%, avg=59.72, stdev=32.73, samples=337 iops : min= 1, max= 63, avg=14.47, stdev= 8.21, samples=337 lat (msec) : 500=2.81%, 750=6.84%, 1000=28.32%, 2000=61.25%, >=2000=0.78% cpu : usr=0.04%, sys=0.18%, ctx=1500, 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=145523: Tue Aug 25 19:40:08 2026 write: IOPS=14, BW=59.4KiB/s (60.9kB/s)(10.0MiB/172297msec); 0 zone resets slat (usec): min=29, max=23128, avg=214.46, stdev=921.65 clat (msec): min=120, max=2235, avg=1075.94, stdev=287.40 lat (msec): min=121, max=2235, avg=1076.15, stdev=287.38 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 634], 10.00th=[ 751], 20.00th=[ 869], | 30.00th=[ 927], 40.00th=[ 986], 50.00th=[ 1070], 60.00th=[ 1133], | 70.00th=[ 1200], 80.00th=[ 1284], 90.00th=[ 1435], 95.00th=[ 1569], | 99.00th=[ 1921], 99.50th=[ 2005], 99.90th=[ 2232], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 7, max= 199, per=25.31%, avg=59.73, stdev=31.54, samples=337 iops : min= 1, max= 49, avg=14.48, stdev= 7.90, samples=337 lat (msec) : 250=0.27%, 500=2.62%, 750=6.76%, 1000=32.07%, 2000=57.77% lat (msec) : >=2000=0.51% cpu : usr=0.03%, sys=0.20%, ctx=1821, 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=145524: Tue Aug 25 19:40:08 2026 write: IOPS=14, BW=59.1KiB/s (60.5kB/s)(10.0MiB/173269msec); 0 zone resets slat (usec): min=29, max=16173, avg=205.08, stdev=873.98 clat (msec): min=293, max=2320, avg=1081.12, stdev=285.08 lat (msec): min=293, max=2320, avg=1081.33, stdev=285.08 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 659], 10.00th=[ 776], 20.00th=[ 869], | 30.00th=[ 944], 40.00th=[ 1003], 50.00th=[ 1070], 60.00th=[ 1116], | 70.00th=[ 1183], 80.00th=[ 1284], 90.00th=[ 1452], 95.00th=[ 1569], | 99.00th=[ 1955], 99.50th=[ 2005], 99.90th=[ 2232], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 7, max= 254, per=25.62%, avg=60.46, stdev=28.55, samples=333 iops : min= 1, max= 63, avg=14.65, stdev= 7.17, samples=333 lat (msec) : 500=2.58%, 750=5.90%, 1000=30.62%, 2000=60.39%, >=2000=0.51% cpu : usr=0.04%, sys=0.20%, ctx=1623, 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=236KiB/s (242kB/s), 59.1KiB/s-59.4KiB/s (60.5kB/s-60.9kB/s), io=40.0MiB (41.9MB), run=172297-173269msec 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=145560: Tue Aug 25 19:42:33 2026 read: IOPS=9, BW=37.8KiB/s (38.7kB/s)(5048KiB/133584msec) slat (usec): min=37, max=88389, avg=16524.71, stdev=10211.75 clat (msec): min=22, max=1316, avg=531.14, stdev=161.84 lat (msec): min=28, max=1358, avg=547.67, stdev=164.47 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 330], 10.00th=[ 359], 20.00th=[ 401], | 30.00th=[ 439], 40.00th=[ 472], 50.00th=[ 510], 60.00th=[ 550], | 70.00th=[ 609], 80.00th=[ 659], 90.00th=[ 735], 95.00th=[ 810], | 99.00th=[ 1011], 99.50th=[ 1036], 99.90th=[ 1167], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 7, max= 102, per=25.29%, avg=37.69, stdev=20.14, samples=262 iops : min= 1, max= 25, avg= 8.93, stdev= 5.08, samples=262 write: IOPS=9, BW=38.9KiB/s (39.8kB/s)(5192KiB/133584msec); 0 zone resets slat (usec): min=31, max=14394, avg=214.72, stdev=653.34 clat (msec): min=94, max=2551, avg=1112.67, stdev=374.82 lat (msec): min=94, max=2551, avg=1112.89, stdev=374.83 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 584], 10.00th=[ 651], 20.00th=[ 776], | 30.00th=[ 885], 40.00th=[ 978], 50.00th=[ 1083], 60.00th=[ 1167], | 70.00th=[ 1301], 80.00th=[ 1452], 90.00th=[ 1636], 95.00th=[ 1754], | 99.00th=[ 2056], 99.50th=[ 2165], 99.90th=[ 2333], 99.95th=[ 2567], | 99.99th=[ 2567] bw ( KiB/s): min= 7, max= 96, per=24.72%, avg=38.32, stdev=20.65, samples=264 iops : min= 1, max= 24, avg= 9.08, stdev= 5.23, samples=264 lat (msec) : 50=0.23%, 100=0.43%, 250=0.43%, 500=23.24%, 750=29.10% lat (msec) : 1000=16.41%, 2000=29.45%, >=2000=0.70% cpu : usr=0.06%, sys=0.48%, ctx=3937, 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=145561: Tue Aug 25 19:42:33 2026 read: IOPS=9, BW=37.1KiB/s (37.0kB/s)(4976KiB/134240msec) slat (usec): min=2832, max=93971, avg=16788.64, stdev=10385.45 clat (msec): min=10, max=1138, avg=528.52, stdev=159.34 lat (msec): min=22, max=1168, avg=545.31, stdev=161.46 clat percentiles (msec): | 1.00th=[ 232], 5.00th=[ 321], 10.00th=[ 355], 20.00th=[ 397], | 30.00th=[ 430], 40.00th=[ 468], 50.00th=[ 502], 60.00th=[ 542], | 70.00th=[ 609], 80.00th=[ 667], 90.00th=[ 743], 95.00th=[ 827], | 99.00th=[ 944], 99.50th=[ 986], 99.90th=[ 1133], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 7, max= 112, per=24.85%, avg=37.02, stdev=20.37, samples=262 iops : min= 1, max= 28, avg= 8.76, stdev= 5.18, samples=262 write: IOPS=9, BW=39.2KiB/s (40.2kB/s)(5264KiB/134240msec); 0 zone resets slat (usec): min=25, max=20157, avg=228.32, stdev=919.31 clat (msec): min=320, max=2490, avg=1113.52, stdev=380.06 lat (msec): min=320, max=2490, avg=1113.75, stdev=380.07 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 584], 10.00th=[ 651], 20.00th=[ 776], | 30.00th=[ 877], 40.00th=[ 986], 50.00th=[ 1062], 60.00th=[ 1167], | 70.00th=[ 1284], 80.00th=[ 1452], 90.00th=[ 1636], 95.00th=[ 1787], | 99.00th=[ 2072], 99.50th=[ 2232], 99.90th=[ 2366], 99.95th=[ 2500], | 99.99th=[ 2500] bw ( KiB/s): min= 7, max= 119, per=25.45%, avg=39.44, stdev=19.64, samples=261 iops : min= 1, max= 29, avg= 9.37, stdev= 4.93, samples=261 lat (msec) : 20=0.04%, 50=0.04%, 100=0.20%, 250=0.31%, 500=24.80% lat (msec) : 750=27.50%, 1000=16.95%, 2000=29.34%, >=2000=0.82% cpu : usr=0.08%, sys=0.43%, ctx=3788, 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=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=145562: Tue Aug 25 19:42:33 2026 read: IOPS=9, BW=37.1KiB/s (38.0kB/s)(4984KiB/134243msec) slat (usec): min=3146, max=99230, avg=16906.71, stdev=10323.46 clat (msec): min=38, max=1167, avg=531.46, stdev=157.34 lat (msec): min=46, max=1194, avg=548.37, stdev=159.32 clat percentiles (msec): | 1.00th=[ 264], 5.00th=[ 326], 10.00th=[ 355], 20.00th=[ 405], | 30.00th=[ 443], 40.00th=[ 472], 50.00th=[ 506], 60.00th=[ 542], | 70.00th=[ 600], 80.00th=[ 659], 90.00th=[ 743], 95.00th=[ 827], | 99.00th=[ 1003], 99.50th=[ 1036], 99.90th=[ 1150], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 7, max= 95, per=25.38%, avg=37.82, stdev=19.01, samples=258 iops : min= 1, max= 23, avg= 8.95, stdev= 4.79, samples=258 write: IOPS=9, BW=39.2KiB/s (40.1kB/s)(5256KiB/134243msec); 0 zone resets slat (usec): min=33, max=61393, avg=368.50, stdev=2201.05 clat (msec): min=348, max=2382, avg=1111.41, stdev=367.70 lat (msec): min=348, max=2382, avg=1111.78, stdev=367.76 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 584], 10.00th=[ 659], 20.00th=[ 785], | 30.00th=[ 885], 40.00th=[ 978], 50.00th=[ 1083], 60.00th=[ 1167], | 70.00th=[ 1284], 80.00th=[ 1452], 90.00th=[ 1603], 95.00th=[ 1770], | 99.00th=[ 2022], 99.50th=[ 2333], 99.90th=[ 2366], 99.95th=[ 2400], | 99.99th=[ 2400] bw ( KiB/s): min= 7, max= 111, per=25.51%, avg=39.54, stdev=20.85, samples=259 iops : min= 1, max= 27, avg= 9.39, stdev= 5.27, samples=259 lat (msec) : 50=0.04%, 100=0.20%, 250=0.23%, 500=24.61%, 750=27.54% lat (msec) : 1000=17.23%, 2000=29.38%, >=2000=0.78% cpu : usr=0.08%, sys=0.45%, ctx=3973, 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=145563: Tue Aug 25 19:42:33 2026 read: IOPS=9, BW=37.7KiB/s (38.7kB/s)(5060KiB/134045msec) slat (msec): min=3, max=101, avg=16.56, stdev=10.00 clat (msec): min=16, max=1339, avg=532.75, stdev=167.56 lat (msec): min=33, max=1355, avg=549.31, stdev=169.64 clat percentiles (msec): | 1.00th=[ 243], 5.00th=[ 326], 10.00th=[ 355], 20.00th=[ 397], | 30.00th=[ 435], 40.00th=[ 468], 50.00th=[ 506], 60.00th=[ 542], | 70.00th=[ 592], 80.00th=[ 667], 90.00th=[ 760], 95.00th=[ 835], | 99.00th=[ 1036], 99.50th=[ 1083], 99.90th=[ 1318], 99.95th=[ 1334], | 99.99th=[ 1334] bw ( KiB/s): min= 7, max= 96, per=25.62%, avg=38.18, stdev=19.13, samples=259 iops : min= 1, max= 24, avg= 9.05, stdev= 4.85, samples=259 write: IOPS=9, BW=38.6KiB/s (39.6kB/s)(5180KiB/134045msec); 0 zone resets slat (usec): min=31, max=27998, avg=228.05, stdev=972.63 clat (msec): min=358, max=2506, avg=1116.56, stdev=368.54 lat (msec): min=358, max=2506, avg=1116.79, stdev=368.58 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 592], 10.00th=[ 651], 20.00th=[ 785], | 30.00th=[ 902], 40.00th=[ 986], 50.00th=[ 1083], 60.00th=[ 1167], | 70.00th=[ 1284], 80.00th=[ 1452], 90.00th=[ 1620], 95.00th=[ 1770], | 99.00th=[ 2072], 99.50th=[ 2232], 99.90th=[ 2467], 99.95th=[ 2500], | 99.99th=[ 2500] bw ( KiB/s): min= 7, max= 103, per=25.08%, avg=38.88, stdev=18.96, samples=260 iops : min= 1, max= 25, avg= 9.23, stdev= 4.78, samples=260 lat (msec) : 20=0.04%, 100=0.08%, 250=0.47%, 500=24.22%, 750=27.66% lat (msec) : 1000=17.07%, 2000=29.77%, >=2000=0.70% cpu : usr=0.09%, sys=0.45%, ctx=3870, 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=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=149KiB/s (153kB/s), 37.1KiB/s-37.8KiB/s (37.0kB/s-38.7kB/s), io=19.6MiB (20.5MB), run=133584-134243msec WRITE: bw=156KiB/s (159kB/s), 38.6KiB/s-39.2KiB/s (39.6kB/s-40.2kB/s), io=20.4MiB (21.4MB), run=133584-134243msec 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=145588: Tue Aug 25 19:42:48 2026 read: IOPS=1, BW=65.0MiB/s (68.2MB/s)(40.0MiB/615msec) slat (nsec): min=53708k, max=53708k, avg=53708116.00, stdev= 0.00 clat (nsec): min=529981k, max=529981k, avg=529981024.00, stdev= 0.00 lat (nsec): min=583694k, max=583694k, avg=583693983.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 531], 5.00th=[ 531], 10.00th=[ 531], 20.00th=[ 531], | 30.00th=[ 531], 40.00th=[ 531], 50.00th=[ 531], 60.00th=[ 531], | 70.00th=[ 531], 80.00th=[ 531], 90.00th=[ 531], 95.00th=[ 531], | 99.00th=[ 531], 99.50th=[ 531], 99.90th=[ 531], 99.95th=[ 531], | 99.99th=[ 531] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.12%, ctx=5, majf=0, minf=9 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=65.0MiB/s (68.2MB/s), 65.0MiB/s-65.0MiB/s (68.2MB/s-68.2MB/s), io=40.0MiB (41.9MB), run=615-615msec 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