== sanity test 398c: run fio to test AIO ================= 09:23:40 (1790947420) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.358461 s, 117 MB/s osc.lustre-OST0000-osc-ffff8fd5b9be9000.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=181342: Fri Oct 2 09:24:16 2026 write: IOPS=96, BW=385KiB/s (394kB/s)(10.0MiB/26605msec); 0 zone resets slat (usec): min=30, max=8448, avg=208.02, stdev=560.15 clat (msec): min=17, max=290, avg=165.31, stdev=35.45 lat (msec): min=19, max=290, avg=165.52, stdev=35.44 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 110], 10.00th=[ 123], 20.00th=[ 136], | 30.00th=[ 146], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 174], | 70.00th=[ 184], 80.00th=[ 194], 90.00th=[ 211], 95.00th=[ 222], | 99.00th=[ 259], 99.50th=[ 275], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 254, max= 518, per=24.90%, avg=383.21, stdev=63.50, samples=52 iops : min= 63, max= 129, avg=95.46, stdev=15.93, samples=52 lat (msec) : 20=0.08%, 50=0.04%, 100=2.23%, 250=96.60%, 500=1.05% cpu : usr=0.17%, sys=1.03%, ctx=2999, 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=181343: Fri Oct 2 09:24:16 2026 write: IOPS=96, BW=388KiB/s (397kB/s)(10.0MiB/26420msec); 0 zone resets slat (usec): min=23, max=13973, avg=174.58, stdev=664.62 clat (msec): min=44, max=295, avg=164.82, stdev=37.51 lat (msec): min=45, max=295, avg=165.00, stdev=37.52 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 108], 10.00th=[ 123], 20.00th=[ 136], | 30.00th=[ 144], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 184], 80.00th=[ 197], 90.00th=[ 209], 95.00th=[ 228], | 99.00th=[ 255], 99.50th=[ 271], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 254, max= 670, per=25.08%, avg=385.92, stdev=89.21, samples=52 iops : min= 63, max= 167, avg=96.13, stdev=22.28, samples=52 lat (msec) : 50=0.62%, 100=2.50%, 250=95.20%, 500=1.68% cpu : usr=0.13%, sys=0.75%, ctx=1174, 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=181344: Fri Oct 2 09:24:16 2026 write: IOPS=96, BW=385KiB/s (395kB/s)(10.0MiB/26576msec); 0 zone resets slat (usec): min=27, max=11069, avg=185.42, stdev=534.83 clat (msec): min=21, max=287, avg=165.29, stdev=36.23 lat (msec): min=21, max=287, avg=165.48, stdev=36.21 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 107], 10.00th=[ 122], 20.00th=[ 136], | 30.00th=[ 146], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 178], | 70.00th=[ 186], 80.00th=[ 194], 90.00th=[ 211], 95.00th=[ 228], | 99.00th=[ 251], 99.50th=[ 257], 99.90th=[ 284], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 254, max= 512, per=24.95%, avg=384.02, stdev=67.66, samples=52 iops : min= 63, max= 128, avg=95.67, stdev=16.93, samples=52 lat (msec) : 50=0.74%, 100=1.80%, 250=96.48%, 500=0.98% cpu : usr=0.18%, sys=0.92%, ctx=2387, 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=181345: Fri Oct 2 09:24:16 2026 write: IOPS=96, BW=386KiB/s (395kB/s)(10.0MiB/26526msec); 0 zone resets slat (usec): min=30, max=12252, avg=236.89, stdev=626.10 clat (msec): min=23, max=298, avg=165.12, stdev=36.22 lat (msec): min=24, max=298, avg=165.36, stdev=36.20 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 108], 10.00th=[ 120], 20.00th=[ 136], | 30.00th=[ 146], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 174], | 70.00th=[ 184], 80.00th=[ 194], 90.00th=[ 213], 95.00th=[ 222], | 99.00th=[ 257], 99.50th=[ 275], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 255, max= 526, per=25.00%, avg=384.67, stdev=65.55, samples=52 iops : min= 63, max= 131, avg=95.83, stdev=16.40, samples=52 lat (msec) : 50=0.23%, 100=2.38%, 250=96.21%, 500=1.17% cpu : usr=0.18%, sys=1.12%, ctx=3068, 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=1540KiB/s (1577kB/s), 385KiB/s-388KiB/s (394kB/s-397kB/s), io=40.0MiB (41.9MB), run=26420-26605msec 18% of I/O are 1-page (PAGE_SIZE=4096), max 50% 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=181359: Fri Oct 2 09:24:54 2026 read: IOPS=41, BW=164KiB/s (168kB/s)(5048KiB/30713msec) slat (usec): min=27, max=55479, avg=13398.54, stdev=7754.71 clat (msec): min=18, max=388, avg=181.93, stdev=51.25 lat (msec): min=40, max=401, avg=195.33, stdev=53.63 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 110], 10.00th=[ 123], 20.00th=[ 140], | 30.00th=[ 153], 40.00th=[ 163], 50.00th=[ 176], 60.00th=[ 186], | 70.00th=[ 203], 80.00th=[ 226], 90.00th=[ 255], 95.00th=[ 275], | 99.00th=[ 309], 99.50th=[ 347], 99.90th=[ 380], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 87, max= 263, per=25.09%, avg=163.83, stdev=38.46, samples=60 iops : min= 21, max= 65, avg=40.42, stdev= 9.61, samples=60 write: IOPS=42, BW=169KiB/s (173kB/s)(5192KiB/30713msec); 0 zone resets slat (usec): min=30, max=11414, avg=260.82, stdev=881.10 clat (msec): min=51, max=376, avg=186.42, stdev=48.39 lat (msec): min=51, max=376, avg=186.68, stdev=48.40 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 122], 10.00th=[ 131], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 192], | 70.00th=[ 207], 80.00th=[ 226], 90.00th=[ 253], 95.00th=[ 275], | 99.00th=[ 326], 99.50th=[ 355], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 80, max= 271, per=24.90%, avg=169.35, stdev=48.63, samples=60 iops : min= 20, max= 67, avg=41.80, stdev=12.07, samples=60 lat (msec) : 20=0.04%, 100=1.76%, 250=86.91%, 500=11.29% cpu : usr=0.26%, sys=1.52%, ctx=4424, 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=181360: Fri Oct 2 09:24:54 2026 read: IOPS=40, BW=162KiB/s (166kB/s)(4976KiB/30694msec) slat (usec): min=35, max=67848, avg=13016.24, stdev=7740.30 clat (msec): min=10, max=412, avg=182.03, stdev=51.57 lat (msec): min=22, max=419, avg=195.05, stdev=53.76 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 111], 10.00th=[ 126], 20.00th=[ 140], | 30.00th=[ 153], 40.00th=[ 165], 50.00th=[ 174], 60.00th=[ 186], | 70.00th=[ 203], 80.00th=[ 220], 90.00th=[ 253], 95.00th=[ 275], | 99.00th=[ 330], 99.50th=[ 384], 99.90th=[ 405], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 92, max= 247, per=24.76%, avg=161.68, stdev=39.45, samples=60 iops : min= 23, max= 61, avg=39.88, stdev= 9.83, samples=60 write: IOPS=42, BW=171KiB/s (176kB/s)(5264KiB/30694msec); 0 zone resets slat (usec): min=32, max=14619, avg=225.51, stdev=731.35 clat (msec): min=84, max=343, avg=186.43, stdev=47.51 lat (msec): min=84, max=343, avg=186.66, stdev=47.53 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 118], 10.00th=[ 130], 20.00th=[ 148], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 192], | 70.00th=[ 205], 80.00th=[ 224], 90.00th=[ 253], 95.00th=[ 279], | 99.00th=[ 326], 99.50th=[ 338], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 95, max= 311, per=25.32%, avg=172.17, stdev=49.18, samples=60 iops : min= 23, max= 77, avg=42.50, stdev=12.25, samples=60 lat (msec) : 20=0.04%, 100=2.03%, 250=87.34%, 500=10.59% cpu : usr=0.23%, sys=1.57%, ctx=4131, 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=181361: Fri Oct 2 09:24:54 2026 read: IOPS=40, BW=162KiB/s (166kB/s)(4984KiB/30675msec) slat (usec): min=34, max=202858, avg=13337.98, stdev=9422.78 clat (msec): min=19, max=394, avg=181.25, stdev=51.60 lat (msec): min=40, max=400, avg=194.60, stdev=53.66 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 114], 10.00th=[ 126], 20.00th=[ 140], | 30.00th=[ 150], 40.00th=[ 163], 50.00th=[ 176], 60.00th=[ 188], | 70.00th=[ 199], 80.00th=[ 222], 90.00th=[ 251], 95.00th=[ 279], | 99.00th=[ 342], 99.50th=[ 359], 99.90th=[ 380], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 79, max= 279, per=24.88%, avg=162.45, stdev=44.80, samples=60 iops : min= 19, max= 69, avg=40.07, stdev=11.17, samples=60 write: IOPS=42, BW=171KiB/s (175kB/s)(5256KiB/30675msec); 0 zone resets slat (usec): min=34, max=12507, avg=210.57, stdev=673.08 clat (msec): min=40, max=367, avg=188.32, stdev=50.77 lat (msec): min=40, max=367, avg=188.53, stdev=50.78 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 115], 10.00th=[ 130], 20.00th=[ 146], | 30.00th=[ 159], 40.00th=[ 171], 50.00th=[ 182], 60.00th=[ 194], | 70.00th=[ 211], 80.00th=[ 228], 90.00th=[ 255], 95.00th=[ 284], | 99.00th=[ 330], 99.50th=[ 347], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 95, max= 343, per=25.13%, avg=170.85, stdev=43.90, samples=60 iops : min= 23, max= 85, avg=42.18, stdev=10.87, samples=60 lat (msec) : 20=0.04%, 50=0.16%, 100=1.91%, 250=87.11%, 500=10.78% cpu : usr=0.23%, sys=1.56%, ctx=4035, 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=181362: Fri Oct 2 09:24:54 2026 read: IOPS=41, BW=166KiB/s (170kB/s)(5060KiB/30455msec) slat (usec): min=34, max=54055, avg=12934.95, stdev=7600.59 clat (msec): min=30, max=378, avg=179.10, stdev=47.75 lat (msec): min=63, max=391, avg=192.04, stdev=50.14 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 113], 10.00th=[ 126], 20.00th=[ 140], | 30.00th=[ 153], 40.00th=[ 163], 50.00th=[ 171], 60.00th=[ 184], | 70.00th=[ 197], 80.00th=[ 218], 90.00th=[ 247], 95.00th=[ 271], | 99.00th=[ 309], 99.50th=[ 326], 99.90th=[ 359], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 79, max= 255, per=25.45%, avg=166.22, stdev=45.04, samples=60 iops : min= 19, max= 63, avg=41.02, stdev=11.22, samples=60 write: IOPS=42, BW=170KiB/s (174kB/s)(5180KiB/30455msec); 0 zone resets slat (usec): min=32, max=15200, avg=199.93, stdev=657.06 clat (msec): min=62, max=392, avg=186.54, stdev=49.68 lat (msec): min=68, max=392, avg=186.75, stdev=49.71 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 116], 10.00th=[ 127], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 194], | 70.00th=[ 209], 80.00th=[ 228], 90.00th=[ 251], 95.00th=[ 275], | 99.00th=[ 326], 99.50th=[ 355], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 95, max= 327, per=24.93%, avg=169.55, stdev=41.84, samples=60 iops : min= 23, max= 81, avg=41.85, stdev=10.40, samples=60 lat (msec) : 50=0.04%, 100=1.80%, 250=88.20%, 500=9.96% cpu : usr=0.20%, sys=1.59%, ctx=4379, 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=653KiB/s (669kB/s), 162KiB/s-166KiB/s (166kB/s-170kB/s), io=19.6MiB (20.5MB), run=30455-30713msec WRITE: bw=680KiB/s (697kB/s), 169KiB/s-171KiB/s (173kB/s-176kB/s), io=20.4MiB (21.4MB), run=30455-30713msec 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=181370: Fri Oct 2 09:25:02 2026 read: IOPS=3, BW=128MiB/s (134MB/s)(40.0MiB/312msec) slat (nsec): min=14336k, max=14336k, avg=14335642.00, stdev= 0.00 clat (nsec): min=284646k, max=284646k, avg=284645929.00, stdev= 0.00 lat (nsec): min=298987k, max=298987k, avg=298986594.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 284], 5.00th=[ 284], 10.00th=[ 284], 20.00th=[ 284], | 30.00th=[ 284], 40.00th=[ 284], 50.00th=[ 284], 60.00th=[ 284], | 70.00th=[ 284], 80.00th=[ 284], 90.00th=[ 284], 95.00th=[ 284], | 99.00th=[ 284], 99.50th=[ 284], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.22%, ctx=4, 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=128MiB/s (134MB/s), 128MiB/s-128MiB/s (134MB/s-134MB/s), io=40.0MiB (41.9MB), run=312-312msec 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