== sanity test 398c: run fio to test AIO ================= 21:15:30 (1786756530) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.397497 s, 106 MB/s osc.lustre-OST0000-osc-ffff9500a03ed800.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=178958: Fri Aug 14 21:16:02 2026 write: IOPS=112, BW=450KiB/s (461kB/s)(10.0MiB/22739msec); 0 zone resets slat (usec): min=36, max=10624, avg=287.58, stdev=731.60 clat (msec): min=13, max=383, avg=141.64, stdev=33.35 lat (msec): min=13, max=383, avg=141.93, stdev=33.35 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 94], 10.00th=[ 103], 20.00th=[ 118], | 30.00th=[ 125], 40.00th=[ 133], 50.00th=[ 140], 60.00th=[ 146], | 70.00th=[ 153], 80.00th=[ 161], 90.00th=[ 182], 95.00th=[ 197], | 99.00th=[ 236], 99.50th=[ 259], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 214, max= 614, per=25.10%, avg=447.98, stdev=80.88, samples=45 iops : min= 53, max= 153, avg=111.62, stdev=20.32, samples=45 lat (msec) : 20=0.04%, 50=0.23%, 100=8.52%, 250=90.47%, 500=0.74% cpu : usr=0.24%, sys=1.50%, ctx=2643, 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=178959: Fri Aug 14 21:16:02 2026 write: IOPS=111, BW=446KiB/s (457kB/s)(10.0MiB/22939msec); 0 zone resets slat (usec): min=35, max=10405, avg=212.48, stdev=518.29 clat (msec): min=14, max=270, avg=141.89, stdev=31.14 lat (msec): min=16, max=270, avg=142.11, stdev=31.14 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 99], 10.00th=[ 106], 20.00th=[ 117], | 30.00th=[ 124], 40.00th=[ 132], 50.00th=[ 140], 60.00th=[ 148], | 70.00th=[ 155], 80.00th=[ 165], 90.00th=[ 182], 95.00th=[ 194], | 99.00th=[ 236], 99.50th=[ 253], 99.90th=[ 266], 99.95th=[ 266], | 99.99th=[ 271] bw ( KiB/s): min= 254, max= 637, per=25.00%, avg=446.18, stdev=79.52, samples=45 iops : min= 63, max= 159, avg=111.20, stdev=19.97, samples=45 lat (msec) : 20=0.08%, 50=0.08%, 100=6.17%, 250=93.12%, 500=0.55% cpu : usr=0.21%, sys=1.32%, ctx=1833, 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=178960: Fri Aug 14 21:16:02 2026 write: IOPS=111, BW=447KiB/s (458kB/s)(10.0MiB/22918msec); 0 zone resets slat (usec): min=34, max=52629, avg=290.72, stdev=1228.07 clat (msec): min=49, max=283, avg=142.01, stdev=31.90 lat (msec): min=49, max=283, avg=142.30, stdev=31.88 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 93], 10.00th=[ 104], 20.00th=[ 116], | 30.00th=[ 125], 40.00th=[ 133], 50.00th=[ 140], 60.00th=[ 146], | 70.00th=[ 153], 80.00th=[ 167], 90.00th=[ 186], 95.00th=[ 201], | 99.00th=[ 241], 99.50th=[ 243], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 263, max= 629, per=25.00%, avg=446.31, stdev=85.50, samples=45 iops : min= 65, max= 157, avg=111.22, stdev=21.50, samples=45 lat (msec) : 50=0.04%, 100=7.70%, 250=91.99%, 500=0.27% cpu : usr=0.21%, sys=1.50%, ctx=2767, 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=178961: Fri Aug 14 21:16:02 2026 write: IOPS=111, BW=446KiB/s (457kB/s)(10.0MiB/22946msec); 0 zone resets slat (usec): min=37, max=14467, avg=286.49, stdev=816.03 clat (msec): min=18, max=244, avg=142.08, stdev=31.35 lat (msec): min=18, max=244, avg=142.37, stdev=31.36 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 94], 10.00th=[ 105], 20.00th=[ 117], | 30.00th=[ 125], 40.00th=[ 132], 50.00th=[ 140], 60.00th=[ 146], | 70.00th=[ 155], 80.00th=[ 167], 90.00th=[ 182], 95.00th=[ 201], | 99.00th=[ 232], 99.50th=[ 243], 99.90th=[ 245], 99.95th=[ 245], | 99.99th=[ 245] bw ( KiB/s): min= 287, max= 629, per=24.95%, avg=445.29, stdev=77.89, samples=45 iops : min= 71, max= 157, avg=110.96, stdev=19.61, samples=45 lat (msec) : 20=0.04%, 50=0.04%, 100=7.15%, 250=92.77% cpu : usr=0.16%, sys=1.53%, ctx=2478, 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=1785KiB/s (1828kB/s), 446KiB/s-450KiB/s (457kB/s-461kB/s), io=40.0MiB (41.9MB), run=22739-22946msec 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=178975: Fri Aug 14 21:16:37 2026 read: IOPS=46, BW=184KiB/s (188kB/s)(5048KiB/27426msec) slat (usec): min=2852, max=50439, avg=12602.05, stdev=7032.54 clat (msec): min=33, max=341, avg=163.43, stdev=44.33 lat (msec): min=39, max=378, avg=176.04, stdev=46.29 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 102], 10.00th=[ 111], 20.00th=[ 124], | 30.00th=[ 136], 40.00th=[ 148], 50.00th=[ 159], 60.00th=[ 171], | 70.00th=[ 186], 80.00th=[ 203], 90.00th=[ 224], 95.00th=[ 245], | 99.00th=[ 271], 99.50th=[ 288], 99.90th=[ 330], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 103, max= 304, per=25.17%, avg=183.48, stdev=44.45, samples=54 iops : min= 25, max= 76, avg=45.46, stdev=11.14, samples=54 write: IOPS=47, BW=189KiB/s (194kB/s)(5192KiB/27426msec); 0 zone resets slat (usec): min=52, max=14369, avg=318.41, stdev=798.21 clat (msec): min=82, max=307, avg=164.40, stdev=40.50 lat (msec): min=83, max=307, avg=164.72, stdev=40.52 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 104], 10.00th=[ 112], 20.00th=[ 126], | 30.00th=[ 140], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 174], | 70.00th=[ 184], 80.00th=[ 199], 90.00th=[ 218], 95.00th=[ 236], | 99.00th=[ 275], 99.50th=[ 284], 99.90th=[ 300], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 95, max= 336, per=24.95%, avg=189.33, stdev=45.47, samples=54 iops : min= 23, max= 84, avg=46.91, stdev=11.46, samples=54 lat (msec) : 50=0.04%, 100=3.83%, 250=92.81%, 500=3.32% cpu : usr=0.25%, sys=2.22%, ctx=4636, 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=178976: Fri Aug 14 21:16:37 2026 read: IOPS=45, BW=182KiB/s (186kB/s)(4976KiB/27359msec) slat (usec): min=2480, max=52128, avg=12561.68, stdev=6708.02 clat (msec): min=17, max=344, avg=161.08, stdev=43.19 lat (msec): min=29, max=350, avg=173.65, stdev=45.00 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 101], 10.00th=[ 109], 20.00th=[ 122], | 30.00th=[ 134], 40.00th=[ 146], 50.00th=[ 159], 60.00th=[ 169], | 70.00th=[ 184], 80.00th=[ 199], 90.00th=[ 218], 95.00th=[ 234], | 99.00th=[ 279], 99.50th=[ 288], 99.90th=[ 305], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 88, max= 278, per=24.86%, avg=181.26, stdev=46.45, samples=54 iops : min= 22, max= 69, avg=44.89, stdev=11.67, samples=54 write: IOPS=48, BW=192KiB/s (197kB/s)(5264KiB/27359msec); 0 zone resets slat (usec): min=41, max=16026, avg=321.02, stdev=971.76 clat (msec): min=45, max=316, avg=166.63, stdev=41.86 lat (msec): min=45, max=316, avg=166.96, stdev=41.86 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 106], 10.00th=[ 113], 20.00th=[ 128], | 30.00th=[ 140], 40.00th=[ 153], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 188], 80.00th=[ 205], 90.00th=[ 224], 95.00th=[ 241], | 99.00th=[ 268], 99.50th=[ 279], 99.90th=[ 296], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 108, max= 320, per=25.37%, avg=192.54, stdev=49.00, samples=54 iops : min= 27, max= 80, avg=47.74, stdev=12.29, samples=54 lat (msec) : 20=0.04%, 50=0.16%, 100=3.55%, 250=93.12%, 500=3.12% cpu : usr=0.24%, sys=2.18%, ctx=4223, 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=178977: Fri Aug 14 21:16:37 2026 read: IOPS=45, BW=183KiB/s (188kB/s)(4984KiB/27174msec) slat (usec): min=140, max=83539, avg=12543.83, stdev=7279.76 clat (msec): min=15, max=359, avg=160.03, stdev=45.01 lat (msec): min=15, max=379, avg=172.58, stdev=47.12 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 97], 10.00th=[ 108], 20.00th=[ 121], | 30.00th=[ 131], 40.00th=[ 144], 50.00th=[ 157], 60.00th=[ 167], | 70.00th=[ 182], 80.00th=[ 201], 90.00th=[ 220], 95.00th=[ 241], | 99.00th=[ 275], 99.50th=[ 300], 99.90th=[ 351], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 103, max= 293, per=25.19%, avg=183.64, stdev=44.76, samples=53 iops : min= 25, max= 73, avg=45.49, stdev=11.26, samples=53 write: IOPS=48, BW=193KiB/s (198kB/s)(5256KiB/27174msec); 0 zone resets slat (usec): min=46, max=12199, avg=313.85, stdev=787.14 clat (msec): min=23, max=342, avg=166.28, stdev=43.05 lat (msec): min=23, max=342, avg=166.60, stdev=43.08 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 103], 10.00th=[ 111], 20.00th=[ 127], | 30.00th=[ 142], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 186], 80.00th=[ 203], 90.00th=[ 224], 95.00th=[ 239], | 99.00th=[ 279], 99.50th=[ 292], 99.90th=[ 334], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 87, max= 319, per=25.40%, avg=192.81, stdev=50.95, samples=53 iops : min= 21, max= 79, avg=47.81, stdev=12.80, samples=53 lat (msec) : 20=0.08%, 50=0.27%, 100=4.65%, 250=91.84%, 500=3.16% cpu : usr=0.29%, sys=2.27%, ctx=4217, 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=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=178978: Fri Aug 14 21:16:37 2026 read: IOPS=45, BW=184KiB/s (188kB/s)(5060KiB/27503msec) slat (usec): min=3190, max=80944, avg=12772.36, stdev=7519.56 clat (msec): min=14, max=304, avg=160.60, stdev=43.47 lat (msec): min=51, max=357, avg=173.37, stdev=45.57 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 100], 10.00th=[ 109], 20.00th=[ 121], | 30.00th=[ 133], 40.00th=[ 146], 50.00th=[ 159], 60.00th=[ 169], | 70.00th=[ 182], 80.00th=[ 199], 90.00th=[ 222], 95.00th=[ 239], | 99.00th=[ 271], 99.50th=[ 284], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 87, max= 333, per=25.12%, avg=183.13, stdev=49.13, samples=54 iops : min= 21, max= 83, avg=45.35, stdev=12.36, samples=54 write: IOPS=47, BW=188KiB/s (193kB/s)(5180KiB/27503msec); 0 zone resets slat (usec): min=44, max=19173, avg=389.09, stdev=1109.56 clat (msec): min=28, max=326, avg=167.67, stdev=43.80 lat (msec): min=28, max=326, avg=168.06, stdev=43.85 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 103], 10.00th=[ 112], 20.00th=[ 128], | 30.00th=[ 142], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 178], | 70.00th=[ 188], 80.00th=[ 207], 90.00th=[ 228], 95.00th=[ 245], | 99.00th=[ 284], 99.50th=[ 296], 99.90th=[ 309], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 104, max= 303, per=24.65%, avg=187.13, stdev=41.98, samples=54 iops : min= 26, max= 75, avg=46.37, stdev=10.54, samples=54 lat (msec) : 20=0.04%, 50=0.12%, 100=4.53%, 250=92.27%, 500=3.05% cpu : usr=0.31%, sys=2.43%, ctx=4595, 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=730KiB/s (747kB/s), 182KiB/s-184KiB/s (186kB/s-188kB/s), io=19.6MiB (20.5MB), run=27174-27503msec WRITE: bw=760KiB/s (778kB/s), 188KiB/s-193KiB/s (193kB/s-198kB/s), io=20.4MiB (21.4MB), run=27174-27503msec 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=178986: Fri Aug 14 21:16:46 2026 read: IOPS=1, BW=62.3MiB/s (65.3MB/s)(40.0MiB/642msec) slat (nsec): min=84213k, max=84213k, avg=84212522.00, stdev= 0.00 clat (nsec): min=503170k, max=503170k, avg=503170212.00, stdev= 0.00 lat (nsec): min=587387k, max=587387k, avg=587386827.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 502], 5.00th=[ 502], 10.00th=[ 502], 20.00th=[ 502], | 30.00th=[ 502], 40.00th=[ 502], 50.00th=[ 502], 60.00th=[ 502], | 70.00th=[ 502], 80.00th=[ 502], 90.00th=[ 502], 95.00th=[ 502], | 99.00th=[ 502], 99.50th=[ 502], 99.90th=[ 502], 99.95th=[ 502], | 99.99th=[ 502] lat (msec) : 750=100.00% cpu : usr=0.31%, sys=2.50%, 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=62.3MiB/s (65.3MB/s), 62.3MiB/s-62.3MiB/s (65.3MB/s-65.3MB/s), io=40.0MiB (41.9MB), run=642-642msec 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