== sanity test 398c: run fio to test AIO ================= 07:21:14 (1786965674) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.574253 s, 73.0 MB/s osc.lustre-OST0000-osc-ffff9457ce4e3800.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=145280: Mon Aug 17 07:24:10 2026 write: IOPS=15, BW=62.1KiB/s (63.5kB/s)(10.0MiB/165002msec); 0 zone resets slat (usec): min=36, max=17684, avg=269.11, stdev=881.14 clat (msec): min=337, max=2305, avg=1029.43, stdev=310.02 lat (msec): min=337, max=2305, avg=1029.70, stdev=310.00 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 592], 10.00th=[ 693], 20.00th=[ 776], | 30.00th=[ 852], 40.00th=[ 919], 50.00th=[ 986], 60.00th=[ 1062], | 70.00th=[ 1133], 80.00th=[ 1250], 90.00th=[ 1435], 95.00th=[ 1603], | 99.00th=[ 1972], 99.50th=[ 2056], 99.90th=[ 2232], 99.95th=[ 2299], | 99.99th=[ 2299] bw ( KiB/s): min= 7, max= 144, per=25.39%, avg=62.97, stdev=30.27, samples=320 iops : min= 1, max= 36, avg=15.28, stdev= 7.61, samples=320 lat (msec) : 500=2.11%, 750=14.80%, 1000=35.62%, 2000=46.60%, >=2000=0.86% cpu : usr=0.04%, sys=0.27%, ctx=2528, 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=145281: Mon Aug 17 07:24:10 2026 write: IOPS=15, BW=62.1KiB/s (63.6kB/s)(10.0MiB/164834msec); 0 zone resets slat (usec): min=37, max=23685, avg=293.59, stdev=1116.97 clat (msec): min=113, max=2374, avg=1028.49, stdev=313.06 lat (msec): min=113, max=2374, avg=1028.79, stdev=313.09 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 584], 10.00th=[ 676], 20.00th=[ 768], | 30.00th=[ 852], 40.00th=[ 927], 50.00th=[ 1003], 60.00th=[ 1062], | 70.00th=[ 1150], 80.00th=[ 1267], 90.00th=[ 1435], 95.00th=[ 1569], | 99.00th=[ 2005], 99.50th=[ 2123], 99.90th=[ 2299], 99.95th=[ 2333], | 99.99th=[ 2366] bw ( KiB/s): min= 7, max= 191, per=25.32%, avg=62.79, stdev=30.58, samples=321 iops : min= 1, max= 47, avg=15.24, stdev= 7.68, samples=321 lat (msec) : 250=0.08%, 500=2.93%, 750=14.41%, 1000=32.97%, 2000=48.55% lat (msec) : >=2000=1.05% cpu : usr=0.05%, sys=0.26%, ctx=2271, 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=145282: Mon Aug 17 07:24:10 2026 write: IOPS=15, BW=62.3KiB/s (63.8kB/s)(10.0MiB/164467msec); 0 zone resets slat (usec): min=36, max=22373, avg=266.77, stdev=989.44 clat (msec): min=119, max=2366, avg=1026.89, stdev=314.89 lat (msec): min=119, max=2366, avg=1027.16, stdev=314.92 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 575], 10.00th=[ 667], 20.00th=[ 768], | 30.00th=[ 852], 40.00th=[ 927], 50.00th=[ 995], 60.00th=[ 1053], | 70.00th=[ 1150], 80.00th=[ 1267], 90.00th=[ 1435], 95.00th=[ 1603], | 99.00th=[ 1955], 99.50th=[ 2106], 99.90th=[ 2366], 99.95th=[ 2366], | 99.99th=[ 2366] bw ( KiB/s): min= 7, max= 183, per=25.08%, avg=62.19, stdev=30.89, samples=324 iops : min= 1, max= 45, avg=15.09, stdev= 7.74, samples=324 lat (msec) : 250=0.31%, 500=1.99%, 750=14.88%, 1000=34.02%, 2000=47.93% lat (msec) : >=2000=0.86% cpu : usr=0.05%, sys=0.25%, ctx=2027, 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=145283: Mon Aug 17 07:24:10 2026 write: IOPS=15, BW=62.1KiB/s (63.6kB/s)(10.0MiB/164950msec); 0 zone resets slat (usec): min=35, max=19414, avg=259.63, stdev=781.77 clat (msec): min=347, max=2321, avg=1028.92, stdev=308.32 lat (msec): min=347, max=2321, avg=1029.18, stdev=308.33 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 600], 10.00th=[ 684], 20.00th=[ 776], | 30.00th=[ 860], 40.00th=[ 927], 50.00th=[ 995], 60.00th=[ 1062], | 70.00th=[ 1133], 80.00th=[ 1267], 90.00th=[ 1435], 95.00th=[ 1586], | 99.00th=[ 1921], 99.50th=[ 1972], 99.90th=[ 2299], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 7, max= 176, per=25.40%, avg=62.98, stdev=27.55, samples=320 iops : min= 1, max= 44, avg=15.29, stdev= 6.93, samples=320 lat (msec) : 500=2.42%, 750=14.69%, 1000=34.45%, 2000=48.09%, >=2000=0.35% cpu : usr=0.04%, sys=0.27%, ctx=1944, 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=248KiB/s (254kB/s), 62.1KiB/s-62.3KiB/s (63.5kB/s-63.8kB/s), io=40.0MiB (41.9MB), run=164467-165002msec 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=145317: Mon Aug 17 07:26:07 2026 read: IOPS=11, BW=45.9KiB/s (47.0kB/s)(5048KiB/109903msec) slat (usec): min=2709, max=50606, avg=14825.56, stdev=8255.30 clat (msec): min=10, max=1377, avg=424.38, stdev=130.04 lat (msec): min=22, max=1400, avg=439.21, stdev=131.69 clat percentiles (msec): | 1.00th=[ 180], 5.00th=[ 271], 10.00th=[ 292], 20.00th=[ 330], | 30.00th=[ 355], 40.00th=[ 384], 50.00th=[ 401], 60.00th=[ 435], | 70.00th=[ 464], 80.00th=[ 506], 90.00th=[ 575], 95.00th=[ 642], | 99.00th=[ 852], 99.50th=[ 953], 99.90th=[ 1368], 99.95th=[ 1385], | 99.99th=[ 1385] bw ( KiB/s): min= 7, max= 112, per=25.25%, avg=45.95, stdev=21.36, samples=215 iops : min= 1, max= 28, avg=11.02, stdev= 5.38, samples=215 write: IOPS=11, BW=47.2KiB/s (48.4kB/s)(5192KiB/109903msec); 0 zone resets slat (usec): min=39, max=14752, avg=284.69, stdev=774.61 clat (msec): min=316, max=2649, avg=923.61, stdev=290.84 lat (msec): min=316, max=2650, avg=923.90, stdev=290.85 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 542], 10.00th=[ 609], 20.00th=[ 701], | 30.00th=[ 768], 40.00th=[ 835], 50.00th=[ 885], 60.00th=[ 944], | 70.00th=[ 1020], 80.00th=[ 1099], 90.00th=[ 1234], 95.00th=[ 1418], | 99.00th=[ 2165], 99.50th=[ 2433], 99.90th=[ 2635], 99.95th=[ 2635], | 99.99th=[ 2635] bw ( KiB/s): min= 7, max= 111, per=24.85%, avg=46.96, stdev=21.40, samples=217 iops : min= 1, max= 27, avg=11.28, stdev= 5.39, samples=217 lat (msec) : 20=0.12%, 50=0.08%, 100=0.16%, 250=1.05%, 500=38.75% lat (msec) : 750=21.95%, 1000=21.13%, 2000=16.25%, >=2000=0.51% cpu : usr=0.09%, sys=0.66%, ctx=4638, 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=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=145318: Mon Aug 17 07:26:07 2026 read: IOPS=11, BW=45.2KiB/s (46.3kB/s)(4976KiB/109973msec) slat (usec): min=59, max=64378, avg=14716.35, stdev=8408.08 clat (msec): min=5, max=1070, avg=431.34, stdev=123.63 lat (msec): min=21, max=1084, avg=446.06, stdev=125.31 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 284], 10.00th=[ 305], 20.00th=[ 334], | 30.00th=[ 363], 40.00th=[ 384], 50.00th=[ 414], 60.00th=[ 439], | 70.00th=[ 472], 80.00th=[ 514], 90.00th=[ 584], 95.00th=[ 659], | 99.00th=[ 827], 99.50th=[ 911], 99.90th=[ 1062], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 7, max= 111, per=24.95%, avg=45.41, stdev=20.55, samples=214 iops : min= 1, max= 27, avg=10.89, stdev= 5.13, samples=214 write: IOPS=11, BW=47.9KiB/s (49.0kB/s)(5264KiB/109973msec); 0 zone resets slat (usec): min=39, max=9781, avg=291.33, stdev=667.11 clat (msec): min=203, max=2760, avg=914.40, stdev=303.00 lat (msec): min=203, max=2761, avg=914.69, stdev=303.01 clat percentiles (msec): | 1.00th=[ 309], 5.00th=[ 502], 10.00th=[ 592], 20.00th=[ 693], | 30.00th=[ 760], 40.00th=[ 835], 50.00th=[ 877], 60.00th=[ 936], | 70.00th=[ 1011], 80.00th=[ 1099], 90.00th=[ 1234], 95.00th=[ 1418], | 99.00th=[ 2165], 99.50th=[ 2333], 99.90th=[ 2735], 99.95th=[ 2769], | 99.99th=[ 2769] bw ( KiB/s): min= 7, max= 104, per=25.33%, avg=47.87, stdev=20.19, samples=216 iops : min= 1, max= 26, avg=11.50, stdev= 5.12, samples=216 lat (msec) : 10=0.04%, 50=0.12%, 100=0.08%, 250=1.13%, 500=38.55% lat (msec) : 750=22.62%, 1000=20.98%, 2000=15.90%, >=2000=0.59% cpu : usr=0.10%, sys=0.68%, ctx=4394, 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=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=145319: Mon Aug 17 07:26:07 2026 read: IOPS=11, BW=45.4KiB/s (46.5kB/s)(4984KiB/109789msec) slat (usec): min=2920, max=61438, avg=14663.15, stdev=8638.65 clat (msec): min=18, max=1417, avg=422.35, stdev=125.31 lat (msec): min=26, max=1426, avg=437.02, stdev=127.01 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 268], 10.00th=[ 296], 20.00th=[ 334], | 30.00th=[ 359], 40.00th=[ 380], 50.00th=[ 401], 60.00th=[ 430], | 70.00th=[ 464], 80.00th=[ 510], 90.00th=[ 567], 95.00th=[ 642], | 99.00th=[ 785], 99.50th=[ 902], 99.90th=[ 1385], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 7, max= 104, per=25.02%, avg=45.54, stdev=22.01, samples=215 iops : min= 1, max= 26, avg=10.92, stdev= 5.51, samples=215 write: IOPS=11, BW=47.9KiB/s (49.0kB/s)(5256KiB/109789msec); 0 zone resets slat (usec): min=40, max=12015, avg=289.14, stdev=706.82 clat (msec): min=201, max=2861, avg=919.55, stdev=301.53 lat (msec): min=202, max=2861, avg=919.85, stdev=301.53 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 535], 10.00th=[ 600], 20.00th=[ 693], | 30.00th=[ 776], 40.00th=[ 835], 50.00th=[ 885], 60.00th=[ 944], | 70.00th=[ 1011], 80.00th=[ 1099], 90.00th=[ 1217], 95.00th=[ 1418], | 99.00th=[ 2140], 99.50th=[ 2433], 99.90th=[ 2869], 99.95th=[ 2869], | 99.99th=[ 2869] bw ( KiB/s): min= 7, max= 111, per=25.05%, avg=47.35, stdev=20.85, samples=217 iops : min= 1, max= 27, avg=11.37, stdev= 5.26, samples=217 lat (msec) : 20=0.04%, 50=0.12%, 100=0.27%, 250=0.98%, 500=38.71% lat (msec) : 750=21.56%, 1000=21.72%, 2000=16.05%, >=2000=0.55% cpu : usr=0.10%, sys=0.63%, ctx=4429, 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=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=145320: Mon Aug 17 07:26:07 2026 read: IOPS=11, BW=46.0KiB/s (47.1kB/s)(5060KiB/109976msec) slat (usec): min=2303, max=75489, avg=14789.39, stdev=8418.23 clat (msec): min=35, max=1150, avg=429.61, stdev=123.40 lat (msec): min=49, max=1157, avg=444.41, stdev=124.54 clat percentiles (msec): | 1.00th=[ 180], 5.00th=[ 275], 10.00th=[ 309], 20.00th=[ 338], | 30.00th=[ 368], 40.00th=[ 388], 50.00th=[ 405], 60.00th=[ 435], | 70.00th=[ 464], 80.00th=[ 506], 90.00th=[ 575], 95.00th=[ 651], | 99.00th=[ 852], 99.50th=[ 927], 99.90th=[ 1070], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 7, max= 111, per=25.58%, avg=46.55, stdev=19.69, samples=213 iops : min= 1, max= 27, avg=11.17, stdev= 4.99, samples=213 write: IOPS=11, BW=47.1KiB/s (48.2kB/s)(5180KiB/109976msec); 0 zone resets slat (usec): min=42, max=11260, avg=296.95, stdev=791.61 clat (msec): min=200, max=2731, avg=921.14, stdev=298.77 lat (msec): min=204, max=2732, avg=921.44, stdev=298.75 clat percentiles (msec): | 1.00th=[ 414], 5.00th=[ 531], 10.00th=[ 609], 20.00th=[ 693], | 30.00th=[ 768], 40.00th=[ 835], 50.00th=[ 885], 60.00th=[ 953], | 70.00th=[ 1028], 80.00th=[ 1099], 90.00th=[ 1234], 95.00th=[ 1401], | 99.00th=[ 2165], 99.50th=[ 2433], 99.90th=[ 2702], 99.95th=[ 2735], | 99.99th=[ 2735] bw ( KiB/s): min= 7, max= 111, per=24.94%, avg=47.13, stdev=20.39, samples=215 iops : min= 1, max= 27, avg=11.32, stdev= 5.12, samples=215 lat (msec) : 50=0.08%, 100=0.27%, 250=0.98%, 500=39.45%, 750=21.37% lat (msec) : 1000=20.98%, 2000=16.21%, >=2000=0.66% cpu : usr=0.11%, sys=0.64%, ctx=4316, 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=182KiB/s (187kB/s), 45.2KiB/s-46.0KiB/s (46.3kB/s-47.1kB/s), io=19.6MiB (20.5MB), run=109789-109976msec WRITE: bw=190KiB/s (195kB/s), 47.1KiB/s-47.9KiB/s (48.2kB/s-49.0kB/s), io=20.4MiB (21.4MB), run=109789-109976msec 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=145340: Mon Aug 17 07:26:16 2026 read: IOPS=2, BW=92.4MiB/s (96.9MB/s)(40.0MiB/433msec) slat (nsec): min=21491k, max=21491k, avg=21491043.00, stdev= 0.00 clat (nsec): min=393714k, max=393714k, avg=393714325.00, stdev= 0.00 lat (nsec): min=415211k, max=415211k, avg=415211340.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 393], 10.00th=[ 393], 20.00th=[ 393], | 30.00th=[ 393], 40.00th=[ 393], 50.00th=[ 393], 60.00th=[ 393], | 70.00th=[ 393], 80.00th=[ 393], 90.00th=[ 393], 95.00th=[ 393], | 99.00th=[ 393], 99.50th=[ 393], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] lat (msec) : 500=100.00% cpu : usr=0.23%, sys=3.01%, ctx=5, majf=0, minf=7 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=92.4MiB/s (96.9MB/s), 92.4MiB/s-92.4MiB/s (96.9MB/s-96.9MB/s), io=40.0MiB (41.9MB), run=433-433msec 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