== sanity test 398c: run fio to test AIO ================= 02:40:23 (1788936023) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.425924 s, 98.5 MB/s osc.lustre-OST0000-osc-ffff8d6fd8231800.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=180311: Wed Sep 9 02:40:59 2026 write: IOPS=99, BW=397KiB/s (406kB/s)(10.0MiB/25810msec); 0 zone resets slat (usec): min=29, max=31111, avg=190.57, stdev=878.88 clat (msec): min=17, max=404, avg=160.86, stdev=33.99 lat (msec): min=19, max=404, avg=161.05, stdev=33.96 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 110], 10.00th=[ 122], 20.00th=[ 134], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 159], 60.00th=[ 169], | 70.00th=[ 178], 80.00th=[ 190], 90.00th=[ 203], 95.00th=[ 213], | 99.00th=[ 241], 99.50th=[ 268], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 405] bw ( KiB/s): min= 296, max= 568, per=25.21%, avg=397.10, stdev=59.69, samples=51 iops : min= 74, max= 142, avg=98.92, stdev=14.96, samples=51 lat (msec) : 20=0.04%, 50=0.23%, 100=2.42%, 250=96.64%, 500=0.66% cpu : usr=0.21%, sys=0.94%, ctx=2681, 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=180312: Wed Sep 9 02:40:59 2026 write: IOPS=98, BW=395KiB/s (404kB/s)(10.0MiB/25937msec); 0 zone resets slat (usec): min=31, max=17747, avg=191.19, stdev=740.48 clat (msec): min=30, max=313, avg=161.62, stdev=32.24 lat (msec): min=32, max=313, avg=161.82, stdev=32.24 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 111], 10.00th=[ 123], 20.00th=[ 136], | 30.00th=[ 146], 40.00th=[ 153], 50.00th=[ 159], 60.00th=[ 169], | 70.00th=[ 178], 80.00th=[ 192], 90.00th=[ 203], 95.00th=[ 213], | 99.00th=[ 236], 99.50th=[ 255], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 262, max= 510, per=25.10%, avg=395.27, stdev=59.13, samples=51 iops : min= 65, max= 127, avg=98.45, stdev=14.73, samples=51 lat (msec) : 50=0.12%, 100=3.24%, 250=95.70%, 500=0.94% cpu : usr=0.13%, sys=0.93%, ctx=2806, 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=180313: Wed Sep 9 02:40:59 2026 write: IOPS=98, BW=395KiB/s (404kB/s)(10.0MiB/25954msec); 0 zone resets slat (usec): min=28, max=18097, avg=201.63, stdev=815.29 clat (msec): min=22, max=287, avg=161.45, stdev=31.94 lat (msec): min=23, max=288, avg=161.65, stdev=31.92 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 113], 10.00th=[ 121], 20.00th=[ 134], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 161], 60.00th=[ 169], | 70.00th=[ 176], 80.00th=[ 190], 90.00th=[ 205], 95.00th=[ 215], | 99.00th=[ 247], 99.50th=[ 249], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 262, max= 525, per=25.02%, avg=394.06, stdev=61.15, samples=51 iops : min= 65, max= 131, avg=98.14, stdev=15.33, samples=51 lat (msec) : 50=0.23%, 100=0.86%, 250=98.55%, 500=0.35% cpu : usr=0.17%, sys=0.97%, ctx=2733, 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=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=180314: Wed Sep 9 02:40:59 2026 write: IOPS=98, BW=394KiB/s (403kB/s)(10.0MiB/26000msec); 0 zone resets slat (usec): min=30, max=25996, avg=212.27, stdev=1056.30 clat (msec): min=18, max=280, avg=161.34, stdev=32.39 lat (msec): min=18, max=280, avg=161.56, stdev=32.38 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 114], 10.00th=[ 122], 20.00th=[ 134], | 30.00th=[ 142], 40.00th=[ 153], 50.00th=[ 159], 60.00th=[ 167], | 70.00th=[ 178], 80.00th=[ 192], 90.00th=[ 203], 95.00th=[ 215], | 99.00th=[ 234], 99.50th=[ 245], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 255, max= 549, per=24.96%, avg=393.12, stdev=57.66, samples=51 iops : min= 63, max= 137, avg=97.92, stdev=14.43, samples=51 lat (msec) : 20=0.04%, 50=0.12%, 100=1.76%, 250=97.62%, 500=0.47% cpu : usr=0.17%, sys=0.82%, ctx=2263, 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=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=1575KiB/s (1613kB/s), 394KiB/s-397KiB/s (403kB/s-406kB/s), io=40.0MiB (41.9MB), run=25810-26000msec 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=180328: Wed Sep 9 02:41:36 2026 read: IOPS=45, BW=181KiB/s (185kB/s)(5048KiB/27923msec) slat (usec): min=2558, max=45990, avg=11823.15, stdev=6389.18 clat (msec): min=81, max=281, avg=164.09, stdev=33.62 lat (msec): min=94, max=305, avg=175.92, stdev=34.65 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 115], 10.00th=[ 123], 20.00th=[ 134], | 30.00th=[ 144], 40.00th=[ 155], 50.00th=[ 161], 60.00th=[ 171], | 70.00th=[ 180], 80.00th=[ 192], 90.00th=[ 209], 95.00th=[ 224], | 99.00th=[ 257], 99.50th=[ 268], 99.90th=[ 279], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 77, max= 256, per=25.16%, avg=180.62, stdev=36.18, samples=55 iops : min= 19, max= 64, avg=44.69, stdev= 9.01, samples=55 write: IOPS=46, BW=186KiB/s (190kB/s)(5192KiB/27923msec); 0 zone resets slat (usec): min=32, max=13419, avg=200.38, stdev=579.63 clat (msec): min=65, max=288, avg=170.13, stdev=33.32 lat (msec): min=65, max=289, avg=170.34, stdev=33.34 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 123], 10.00th=[ 131], 20.00th=[ 142], | 30.00th=[ 150], 40.00th=[ 159], 50.00th=[ 167], 60.00th=[ 178], | 70.00th=[ 186], 80.00th=[ 199], 90.00th=[ 218], 95.00th=[ 232], | 99.00th=[ 251], 99.50th=[ 262], 99.90th=[ 271], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 63, max= 270, per=24.88%, avg=186.07, stdev=36.37, samples=55 iops : min= 15, max= 67, avg=46.07, stdev= 9.17, samples=55 lat (msec) : 100=0.90%, 250=97.85%, 500=1.25% cpu : usr=0.21%, sys=1.73%, ctx=4689, 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=180329: Wed Sep 9 02:41:36 2026 read: IOPS=44, BW=179KiB/s (183kB/s)(4976KiB/27806msec) slat (usec): min=2417, max=46877, avg=11759.23, stdev=6058.31 clat (msec): min=82, max=370, avg=164.64, stdev=34.93 lat (msec): min=89, max=381, avg=176.41, stdev=36.09 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 116], 10.00th=[ 125], 20.00th=[ 136], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 161], 60.00th=[ 169], | 70.00th=[ 180], 80.00th=[ 190], 90.00th=[ 211], 95.00th=[ 224], | 99.00th=[ 266], 99.50th=[ 288], 99.90th=[ 359], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 76, max= 270, per=24.80%, avg=178.07, stdev=41.94, samples=55 iops : min= 19, max= 67, avg=44.07, stdev=10.52, samples=55 write: IOPS=47, BW=189KiB/s (194kB/s)(5264KiB/27806msec); 0 zone resets slat (usec): min=31, max=17239, avg=214.61, stdev=709.05 clat (msec): min=47, max=324, avg=169.06, stdev=33.81 lat (msec): min=47, max=324, avg=169.27, stdev=33.84 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 122], 10.00th=[ 129], 20.00th=[ 140], | 30.00th=[ 148], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 184], 80.00th=[ 199], 90.00th=[ 215], 95.00th=[ 230], | 99.00th=[ 255], 99.50th=[ 262], 99.90th=[ 296], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 112, max= 278, per=25.32%, avg=189.42, stdev=37.45, samples=55 iops : min= 28, max= 69, avg=46.91, stdev= 9.33, samples=55 lat (msec) : 50=0.04%, 100=0.59%, 250=97.85%, 500=1.52% cpu : usr=0.26%, sys=1.82%, ctx=4521, 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=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=180330: Wed Sep 9 02:41:36 2026 read: IOPS=44, BW=178KiB/s (183kB/s)(4984KiB/27926msec) slat (msec): min=2, max=215, avg=12.06, stdev= 8.38 clat (msec): min=57, max=389, avg=166.49, stdev=38.39 lat (msec): min=84, max=396, avg=178.56, stdev=39.07 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 113], 10.00th=[ 122], 20.00th=[ 133], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 163], 60.00th=[ 174], | 70.00th=[ 184], 80.00th=[ 199], 90.00th=[ 215], 95.00th=[ 228], | 99.00th=[ 275], 99.50th=[ 288], 99.90th=[ 380], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 49, max= 263, per=24.78%, avg=177.91, stdev=38.60, samples=55 iops : min= 12, max= 65, avg=44.04, stdev= 9.62, samples=55 write: IOPS=47, BW=188KiB/s (193kB/s)(5256KiB/27926msec); 0 zone resets slat (usec): min=36, max=9704, avg=200.97, stdev=578.49 clat (msec): min=20, max=367, avg=167.58, stdev=36.14 lat (msec): min=20, max=367, avg=167.78, stdev=36.12 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 117], 10.00th=[ 128], 20.00th=[ 140], | 30.00th=[ 150], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 174], | 70.00th=[ 184], 80.00th=[ 194], 90.00th=[ 213], 95.00th=[ 230], | 99.00th=[ 262], 99.50th=[ 300], 99.90th=[ 359], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 70, max= 272, per=24.98%, avg=186.84, stdev=43.86, samples=55 iops : min= 17, max= 68, avg=46.27, stdev=10.97, samples=55 lat (msec) : 50=0.12%, 100=1.13%, 250=96.91%, 500=1.84% cpu : usr=0.28%, sys=1.69%, ctx=4481, 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=180331: Wed Sep 9 02:41:36 2026 read: IOPS=45, BW=182KiB/s (187kB/s)(5060KiB/27727msec) slat (usec): min=53, max=48250, avg=11852.18, stdev=6445.31 clat (msec): min=24, max=322, avg=164.83, stdev=36.79 lat (msec): min=36, max=336, avg=176.69, stdev=37.96 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 112], 10.00th=[ 123], 20.00th=[ 134], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 161], 60.00th=[ 171], | 70.00th=[ 184], 80.00th=[ 197], 90.00th=[ 211], 95.00th=[ 228], | 99.00th=[ 264], 99.50th=[ 284], 99.90th=[ 305], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 96, max= 255, per=25.27%, avg=181.45, stdev=37.22, samples=55 iops : min= 24, max= 63, avg=44.91, stdev= 9.26, samples=55 write: IOPS=46, BW=187KiB/s (191kB/s)(5180KiB/27727msec); 0 zone resets slat (usec): min=36, max=17212, avg=229.28, stdev=801.85 clat (msec): min=42, max=350, avg=169.22, stdev=34.96 lat (msec): min=43, max=350, avg=169.45, stdev=35.00 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 121], 10.00th=[ 128], 20.00th=[ 140], | 30.00th=[ 148], 40.00th=[ 157], 50.00th=[ 167], 60.00th=[ 174], | 70.00th=[ 186], 80.00th=[ 199], 90.00th=[ 218], 95.00th=[ 232], | 99.00th=[ 255], 99.50th=[ 271], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 95, max= 294, per=24.85%, avg=185.85, stdev=39.09, samples=55 iops : min= 23, max= 73, avg=46.02, stdev= 9.87, samples=55 lat (msec) : 50=0.23%, 100=0.90%, 250=97.30%, 500=1.56% cpu : usr=0.21%, sys=1.70%, ctx=4725, 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=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=719KiB/s (736kB/s), 178KiB/s-182KiB/s (183kB/s-187kB/s), io=19.6MiB (20.5MB), run=27727-27926msec WRITE: bw=748KiB/s (766kB/s), 186KiB/s-189KiB/s (190kB/s-194kB/s), io=20.4MiB (21.4MB), run=27727-27926msec 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=180339: Wed Sep 9 02:41:46 2026 read: IOPS=2, BW=89.5MiB/s (93.8MB/s)(40.0MiB/447msec) slat (nsec): min=29422k, max=29422k, avg=29421852.00, stdev= 0.00 clat (nsec): min=399540k, max=399540k, avg=399540055.00, stdev= 0.00 lat (nsec): min=428966k, max=428966k, avg=428965757.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 401], 10.00th=[ 401], 20.00th=[ 401], | 30.00th=[ 401], 40.00th=[ 401], 50.00th=[ 401], 60.00th=[ 401], | 70.00th=[ 401], 80.00th=[ 401], 90.00th=[ 401], 95.00th=[ 401], | 99.00th=[ 401], 99.50th=[ 401], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=1.57%, ctx=6, 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=89.5MiB/s (93.8MB/s), 89.5MiB/s-89.5MiB/s (93.8MB/s-93.8MB/s), io=40.0MiB (41.9MB), run=447-447msec 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