== sanity test 398c: run fio to test AIO ================= 17:18:40 (1787606320) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.703976 s, 59.6 MB/s osc.lustre-OST0000-osc-ffff8c9183608800.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=145135: Mon Aug 24 17:22:04 2026 write: IOPS=13, BW=53.8KiB/s (55.1kB/s)(10.0MiB/190408msec); 0 zone resets slat (usec): min=29, max=26409, avg=307.42, stdev=1278.71 clat (msec): min=107, max=2713, avg=1188.76, stdev=357.41 lat (msec): min=107, max=2721, avg=1189.07, stdev=357.44 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 609], 10.00th=[ 793], 20.00th=[ 919], | 30.00th=[ 1028], 40.00th=[ 1083], 50.00th=[ 1167], 60.00th=[ 1234], | 70.00th=[ 1334], 80.00th=[ 1452], 90.00th=[ 1653], 95.00th=[ 1787], | 99.00th=[ 2232], 99.50th=[ 2534], 99.90th=[ 2668], 99.95th=[ 2702], | 99.99th=[ 2702] bw ( KiB/s): min= 7, max= 175, per=25.34%, avg=54.24, stdev=29.58, samples=370 iops : min= 1, max= 43, avg=13.02, stdev= 7.39, samples=370 lat (msec) : 250=0.51%, 500=2.34%, 750=5.00%, 1000=20.04%, 2000=70.12% lat (msec) : >=2000=1.99% cpu : usr=0.05%, sys=0.25%, ctx=1763, 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=145136: Mon Aug 24 17:22:04 2026 write: IOPS=13, BW=53.7KiB/s (54.0kB/s)(10.0MiB/190670msec); 0 zone resets slat (usec): min=29, max=12323, avg=272.89, stdev=889.39 clat (msec): min=115, max=2543, avg=1190.57, stdev=342.04 lat (msec): min=115, max=2543, avg=1190.85, stdev=342.04 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 693], 10.00th=[ 793], 20.00th=[ 919], | 30.00th=[ 1020], 40.00th=[ 1099], 50.00th=[ 1183], 60.00th=[ 1250], | 70.00th=[ 1334], 80.00th=[ 1435], 90.00th=[ 1620], 95.00th=[ 1804], | 99.00th=[ 2106], 99.50th=[ 2366], 99.90th=[ 2433], 99.95th=[ 2500], | 99.99th=[ 2534] bw ( KiB/s): min= 7, max= 135, per=25.56%, avg=54.69, stdev=30.27, samples=367 iops : min= 1, max= 33, avg=13.14, stdev= 7.58, samples=367 lat (msec) : 250=0.04%, 500=3.01%, 750=4.61%, 1000=19.96%, 2000=70.39% lat (msec) : >=2000=1.99% cpu : usr=0.05%, sys=0.23%, ctx=1629, 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=145137: Mon Aug 24 17:22:04 2026 write: IOPS=13, BW=53.7KiB/s (55.0kB/s)(10.0MiB/190594msec); 0 zone resets slat (usec): min=29, max=22209, avg=260.57, stdev=997.57 clat (msec): min=304, max=2738, avg=1189.58, stdev=352.71 lat (msec): min=304, max=2739, avg=1189.85, stdev=352.68 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 667], 10.00th=[ 793], 20.00th=[ 927], | 30.00th=[ 1011], 40.00th=[ 1083], 50.00th=[ 1167], 60.00th=[ 1234], | 70.00th=[ 1334], 80.00th=[ 1452], 90.00th=[ 1620], 95.00th=[ 1804], | 99.00th=[ 2198], 99.50th=[ 2534], 99.90th=[ 2702], 99.95th=[ 2735], | 99.99th=[ 2735] bw ( KiB/s): min= 7, max= 127, per=25.49%, avg=54.55, stdev=28.90, samples=368 iops : min= 1, max= 31, avg=13.11, stdev= 7.24, samples=368 lat (msec) : 500=2.93%, 750=4.84%, 1000=19.65%, 2000=70.59%, >=2000=1.99% cpu : usr=0.05%, sys=0.21%, ctx=1757, 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=145138: Mon Aug 24 17:22:04 2026 write: IOPS=13, BW=53.7KiB/s (54.0kB/s)(10.0MiB/190667msec); 0 zone resets slat (usec): min=29, max=35411, avg=323.17, stdev=1367.94 clat (msec): min=313, max=2739, avg=1190.22, stdev=339.94 lat (msec): min=313, max=2739, avg=1190.55, stdev=340.03 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 684], 10.00th=[ 802], 20.00th=[ 927], | 30.00th=[ 1011], 40.00th=[ 1099], 50.00th=[ 1167], 60.00th=[ 1250], | 70.00th=[ 1334], 80.00th=[ 1452], 90.00th=[ 1620], 95.00th=[ 1787], | 99.00th=[ 2165], 99.50th=[ 2265], 99.90th=[ 2534], 99.95th=[ 2735], | 99.99th=[ 2735] bw ( KiB/s): min= 7, max= 127, per=25.35%, avg=54.25, stdev=28.62, samples=370 iops : min= 1, max= 31, avg=13.03, stdev= 7.17, samples=370 lat (msec) : 500=1.91%, 750=5.00%, 1000=21.05%, 2000=70.27%, >=2000=1.76% cpu : usr=0.04%, sys=0.24%, ctx=1676, 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=215KiB/s (220kB/s), 53.7KiB/s-53.8KiB/s (54.0kB/s-55.1kB/s), io=40.0MiB (41.9MB), run=190408-190670msec 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=145175: Mon Aug 24 17:24:26 2026 read: IOPS=9, BW=37.9KiB/s (38.8kB/s)(5048KiB/133176msec) slat (usec): min=2878, max=74700, avg=17977.72, stdev=10190.69 clat (msec): min=31, max=1046, avg=512.33, stdev=146.92 lat (msec): min=41, max=1072, avg=530.32, stdev=148.82 clat percentiles (msec): | 1.00th=[ 230], 5.00th=[ 321], 10.00th=[ 359], 20.00th=[ 401], | 30.00th=[ 435], 40.00th=[ 460], 50.00th=[ 489], 60.00th=[ 523], | 70.00th=[ 558], 80.00th=[ 600], 90.00th=[ 693], 95.00th=[ 810], | 99.00th=[ 978], 99.50th=[ 1011], 99.90th=[ 1036], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 7, max= 103, per=25.51%, avg=38.26, stdev=20.39, samples=257 iops : min= 1, max= 25, avg= 9.02, stdev= 5.11, samples=257 write: IOPS=9, BW=38.0KiB/s (39.9kB/s)(5192KiB/133176msec); 0 zone resets slat (usec): min=31, max=16305, avg=406.73, stdev=1370.98 clat (msec): min=357, max=3039, avg=1121.32, stdev=382.61 lat (msec): min=357, max=3039, avg=1121.73, stdev=382.66 clat percentiles (msec): | 1.00th=[ 514], 5.00th=[ 634], 10.00th=[ 701], 20.00th=[ 810], | 30.00th=[ 902], 40.00th=[ 986], 50.00th=[ 1070], 60.00th=[ 1150], | 70.00th=[ 1234], 80.00th=[ 1368], 90.00th=[ 1569], 95.00th=[ 1871], | 99.00th=[ 2433], 99.50th=[ 2769], 99.90th=[ 3037], 99.95th=[ 3037], | 99.99th=[ 3037] bw ( KiB/s): min= 7, max= 95, per=25.08%, avg=39.12, stdev=19.73, samples=259 iops : min= 1, max= 23, avg= 9.24, stdev= 4.99, samples=259 lat (msec) : 50=0.04%, 100=0.12%, 250=0.47%, 500=25.74%, 750=26.68% lat (msec) : 1000=16.95%, 2000=28.24%, >=2000=1.76% cpu : usr=0.11%, sys=0.63%, ctx=4108, 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=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=145176: Mon Aug 24 17:24:26 2026 read: IOPS=9, BW=37.5KiB/s (38.4kB/s)(4976KiB/132749msec) slat (usec): min=37, max=67391, avg=17509.62, stdev=9510.67 clat (msec): min=32, max=1047, avg=503.88, stdev=150.44 lat (msec): min=46, max=1063, avg=521.40, stdev=152.59 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 309], 10.00th=[ 347], 20.00th=[ 388], | 30.00th=[ 422], 40.00th=[ 451], 50.00th=[ 481], 60.00th=[ 510], | 70.00th=[ 558], 80.00th=[ 609], 90.00th=[ 718], 95.00th=[ 793], | 99.00th=[ 953], 99.50th=[ 986], 99.90th=[ 1020], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 7, max= 103, per=24.95%, avg=37.43, stdev=19.83, samples=259 iops : min= 1, max= 25, avg= 8.81, stdev= 4.95, samples=259 write: IOPS=9, BW=39.7KiB/s (40.6kB/s)(5264KiB/132749msec); 0 zone resets slat (usec): min=35, max=17136, avg=351.70, stdev=1142.46 clat (msec): min=245, max=3057, avg=1119.76, stdev=374.92 lat (msec): min=245, max=3057, avg=1120.11, stdev=374.94 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 634], 10.00th=[ 701], 20.00th=[ 835], | 30.00th=[ 919], 40.00th=[ 995], 50.00th=[ 1062], 60.00th=[ 1150], | 70.00th=[ 1234], 80.00th=[ 1368], 90.00th=[ 1552], 95.00th=[ 1854], | 99.00th=[ 2333], 99.50th=[ 2500], 99.90th=[ 3037], 99.95th=[ 3071], | 99.99th=[ 3071] bw ( KiB/s): min= 7, max= 103, per=25.38%, avg=39.59, stdev=18.11, samples=259 iops : min= 1, max= 25, avg= 9.36, stdev= 4.57, samples=259 lat (msec) : 50=0.08%, 100=0.23%, 250=0.55%, 500=27.54%, 750=23.55% lat (msec) : 1000=17.46%, 2000=28.95%, >=2000=1.64% cpu : usr=0.11%, sys=0.64%, ctx=4448, 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=145177: Mon Aug 24 17:24:26 2026 read: IOPS=9, BW=37.4KiB/s (38.3kB/s)(4984KiB/133174msec) slat (msec): min=3, max=101, avg=17.65, stdev=10.36 clat (msec): min=37, max=1062, avg=516.01, stdev=153.77 lat (msec): min=52, max=1098, avg=533.68, stdev=155.84 clat percentiles (msec): | 1.00th=[ 257], 5.00th=[ 321], 10.00th=[ 351], 20.00th=[ 397], | 30.00th=[ 430], 40.00th=[ 460], 50.00th=[ 489], 60.00th=[ 523], | 70.00th=[ 558], 80.00th=[ 617], 90.00th=[ 726], 95.00th=[ 835], | 99.00th=[ 969], 99.50th=[ 986], 99.90th=[ 1053], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 7, max= 110, per=25.04%, avg=37.56, stdev=20.00, samples=259 iops : min= 1, max= 27, avg= 8.85, stdev= 5.03, samples=259 write: IOPS=9, BW=39.5KiB/s (40.4kB/s)(5256KiB/133174msec); 0 zone resets slat (usec): min=31, max=26572, avg=367.63, stdev=1297.73 clat (msec): min=172, max=3229, avg=1110.48, stdev=369.01 lat (msec): min=173, max=3229, avg=1110.85, stdev=369.06 clat percentiles (msec): | 1.00th=[ 489], 5.00th=[ 617], 10.00th=[ 709], 20.00th=[ 810], | 30.00th=[ 894], 40.00th=[ 978], 50.00th=[ 1070], 60.00th=[ 1150], | 70.00th=[ 1234], 80.00th=[ 1385], 90.00th=[ 1536], 95.00th=[ 1821], | 99.00th=[ 2198], 99.50th=[ 2601], 99.90th=[ 3138], 99.95th=[ 3239], | 99.99th=[ 3239] bw ( KiB/s): min= 7, max= 88, per=25.03%, avg=39.05, stdev=20.03, samples=262 iops : min= 1, max= 22, avg= 9.22, stdev= 5.06, samples=262 lat (msec) : 50=0.08%, 100=0.08%, 250=0.27%, 500=26.25%, 750=25.62% lat (msec) : 1000=18.09%, 2000=28.20%, >=2000=1.41% cpu : usr=0.11%, sys=0.59%, ctx=4079, 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=145178: Mon Aug 24 17:24:26 2026 read: IOPS=9, BW=38.2KiB/s (39.2kB/s)(5060KiB/132345msec) slat (usec): min=3088, max=63087, avg=17364.20, stdev=9419.22 clat (msec): min=28, max=1046, avg=510.07, stdev=152.50 lat (msec): min=38, max=1094, avg=527.44, stdev=154.44 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 321], 10.00th=[ 351], 20.00th=[ 393], | 30.00th=[ 426], 40.00th=[ 456], 50.00th=[ 489], 60.00th=[ 514], | 70.00th=[ 558], 80.00th=[ 609], 90.00th=[ 726], 95.00th=[ 810], | 99.00th=[ 986], 99.50th=[ 1011], 99.90th=[ 1036], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 7, max= 118, per=25.76%, avg=38.64, stdev=18.72, samples=256 iops : min= 1, max= 29, avg= 9.12, stdev= 4.71, samples=256 write: IOPS=9, BW=39.1KiB/s (40.1kB/s)(5180KiB/132345msec); 0 zone resets slat (usec): min=35, max=26335, avg=366.14, stdev=1362.77 clat (msec): min=160, max=3106, avg=1115.35, stdev=376.37 lat (msec): min=160, max=3106, avg=1115.72, stdev=376.42 clat percentiles (msec): | 1.00th=[ 523], 5.00th=[ 642], 10.00th=[ 709], 20.00th=[ 810], | 30.00th=[ 902], 40.00th=[ 978], 50.00th=[ 1062], 60.00th=[ 1133], | 70.00th=[ 1234], 80.00th=[ 1368], 90.00th=[ 1552], 95.00th=[ 1854], | 99.00th=[ 2333], 99.50th=[ 2601], 99.90th=[ 3004], 99.95th=[ 3104], | 99.99th=[ 3104] bw ( KiB/s): min= 7, max= 95, per=25.14%, avg=39.22, stdev=18.78, samples=257 iops : min= 1, max= 23, avg= 9.26, stdev= 4.71, samples=257 lat (msec) : 50=0.04%, 100=0.31%, 250=0.51%, 500=26.17%, 750=25.82% lat (msec) : 1000=17.77%, 2000=27.62%, >=2000=1.76% cpu : usr=0.10%, sys=0.64%, ctx=4156, 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=151KiB/s (154kB/s), 37.4KiB/s-38.2KiB/s (38.3kB/s-39.2kB/s), io=19.6MiB (20.5MB), run=132345-133176msec WRITE: bw=157KiB/s (161kB/s), 38.0KiB/s-39.7KiB/s (39.9kB/s-40.6kB/s), io=20.4MiB (21.4MB), run=132345-133176msec 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=145202: Mon Aug 24 17:24:37 2026 read: IOPS=1, BW=73.5MiB/s (77.1MB/s)(40.0MiB/544msec) slat (nsec): min=33543k, max=33543k, avg=33542724.00, stdev= 0.00 clat (nsec): min=486113k, max=486113k, avg=486113298.00, stdev= 0.00 lat (nsec): min=519661k, max=519661k, avg=519661236.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 485], 5.00th=[ 485], 10.00th=[ 485], 20.00th=[ 485], | 30.00th=[ 485], 40.00th=[ 485], 50.00th=[ 485], 60.00th=[ 485], | 70.00th=[ 485], 80.00th=[ 485], 90.00th=[ 485], 95.00th=[ 485], | 99.00th=[ 485], 99.50th=[ 485], 99.90th=[ 485], 99.95th=[ 485], | 99.99th=[ 485] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.21%, ctx=43, 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=73.5MiB/s (77.1MB/s), 73.5MiB/s-73.5MiB/s (77.1MB/s-77.1MB/s), io=40.0MiB (41.9MB), run=544-544msec 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