== sanity test 398c: run fio to test AIO ================= 22:50:06 (1763351406) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.403163 s, 104 MB/s osc.lustre-OST0000-osc-ffff9e44a9ccf000.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=185310: Sun Nov 16 22:50:40 2025 write: IOPS=97, BW=388KiB/s (397kB/s)(10.0MiB/26382msec); 0 zone resets slat (usec): min=27, max=70242, avg=206.65, stdev=1476.82 clat (msec): min=17, max=339, avg=163.44, stdev=35.67 lat (msec): min=17, max=340, avg=163.65, stdev=35.58 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 116], 10.00th=[ 126], 20.00th=[ 138], | 30.00th=[ 146], 40.00th=[ 153], 50.00th=[ 161], 60.00th=[ 169], | 70.00th=[ 178], 80.00th=[ 190], 90.00th=[ 209], 95.00th=[ 228], | 99.00th=[ 257], 99.50th=[ 271], 99.90th=[ 338], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 216, max= 534, per=25.01%, avg=387.98, stdev=60.33, samples=52 iops : min= 54, max= 133, avg=96.63, stdev=15.09, samples=52 lat (msec) : 20=0.04%, 50=0.90%, 100=1.21%, 250=96.45%, 500=1.41% cpu : usr=0.18%, sys=1.13%, ctx=2936, 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=185311: Sun Nov 16 22:50:40 2025 write: IOPS=96, BW=388KiB/s (397kB/s)(10.0MiB/26402msec); 0 zone resets slat (usec): min=26, max=9321, avg=168.64, stdev=501.57 clat (msec): min=28, max=340, avg=164.12, stdev=33.60 lat (msec): min=29, max=340, avg=164.29, stdev=33.61 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 117], 10.00th=[ 128], 20.00th=[ 140], | 30.00th=[ 148], 40.00th=[ 153], 50.00th=[ 161], 60.00th=[ 171], | 70.00th=[ 178], 80.00th=[ 190], 90.00th=[ 211], 95.00th=[ 222], | 99.00th=[ 251], 99.50th=[ 300], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 240, max= 606, per=24.93%, avg=386.60, stdev=67.09, samples=52 iops : min= 60, max= 151, avg=96.29, stdev=16.79, samples=52 lat (msec) : 50=0.12%, 100=1.56%, 250=97.15%, 500=1.17% cpu : usr=0.15%, sys=1.01%, ctx=2502, 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=185312: Sun Nov 16 22:50:40 2025 write: IOPS=97, BW=388KiB/s (398kB/s)(10.0MiB/26359msec); 0 zone resets slat (usec): min=27, max=9323, avg=161.80, stdev=502.77 clat (msec): min=20, max=340, avg=164.36, stdev=34.07 lat (msec): min=21, max=340, avg=164.52, stdev=34.05 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 118], 10.00th=[ 129], 20.00th=[ 140], | 30.00th=[ 146], 40.00th=[ 153], 50.00th=[ 161], 60.00th=[ 169], | 70.00th=[ 178], 80.00th=[ 188], 90.00th=[ 205], 95.00th=[ 224], | 99.00th=[ 271], 99.50th=[ 275], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 342] bw ( KiB/s): min= 248, max= 526, per=25.04%, avg=388.33, stdev=60.19, samples=52 iops : min= 62, max= 131, avg=96.73, stdev=15.12, samples=52 lat (msec) : 50=0.08%, 100=2.38%, 250=95.74%, 500=1.80% cpu : usr=0.18%, sys=1.02%, ctx=2402, 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=185313: Sun Nov 16 22:50:40 2025 write: IOPS=97, BW=388KiB/s (398kB/s)(10.0MiB/26365msec); 0 zone resets slat (usec): min=27, max=11431, avg=201.21, stdev=574.73 clat (msec): min=21, max=341, avg=163.96, stdev=35.10 lat (msec): min=21, max=341, avg=164.16, stdev=35.07 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 116], 10.00th=[ 127], 20.00th=[ 138], | 30.00th=[ 146], 40.00th=[ 153], 50.00th=[ 161], 60.00th=[ 169], | 70.00th=[ 178], 80.00th=[ 190], 90.00th=[ 209], 95.00th=[ 226], | 99.00th=[ 275], 99.50th=[ 288], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 232, max= 534, per=25.03%, avg=388.25, stdev=59.33, samples=52 iops : min= 58, max= 133, avg=96.71, stdev=14.86, samples=52 lat (msec) : 50=0.35%, 100=1.80%, 250=96.29%, 500=1.56% cpu : usr=0.17%, sys=1.17%, ctx=3148, 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=1551KiB/s (1589kB/s), 388KiB/s-388KiB/s (397kB/s-398kB/s), io=40.0MiB (41.9MB), run=26359-26402msec 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=185327: Sun Nov 16 22:51:14 2025 read: IOPS=45, BW=181KiB/s (185kB/s)(5048KiB/27910msec) slat (usec): min=2419, max=62320, avg=11461.71, stdev=5327.30 clat (msec): min=82, max=284, avg=165.14, stdev=33.32 lat (msec): min=95, max=295, avg=176.60, stdev=34.45 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 116], 10.00th=[ 126], 20.00th=[ 138], | 30.00th=[ 146], 40.00th=[ 155], 50.00th=[ 163], 60.00th=[ 171], | 70.00th=[ 180], 80.00th=[ 192], 90.00th=[ 209], 95.00th=[ 226], | 99.00th=[ 259], 99.50th=[ 271], 99.90th=[ 279], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 82, max= 264, per=25.10%, avg=180.44, stdev=40.25, samples=55 iops : min= 20, max= 66, avg=44.71, stdev=10.16, samples=55 write: IOPS=46, BW=186KiB/s (190kB/s)(5192KiB/27910msec); 0 zone resets slat (usec): min=31, max=10723, avg=163.25, stdev=456.34 clat (msec): min=88, max=289, avg=169.63, stdev=32.53 lat (msec): min=88, max=289, avg=169.79, stdev=32.52 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 124], 10.00th=[ 132], 20.00th=[ 142], | 30.00th=[ 150], 40.00th=[ 159], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 184], 80.00th=[ 197], 90.00th=[ 213], 95.00th=[ 228], | 99.00th=[ 257], 99.50th=[ 268], 99.90th=[ 279], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 68, max= 246, per=24.89%, avg=186.15, stdev=33.37, samples=55 iops : min= 17, max= 61, avg=46.15, stdev= 8.36, samples=55 lat (msec) : 100=0.66%, 250=97.66%, 500=1.68% cpu : usr=0.24%, sys=1.74%, ctx=4668, 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=185328: Sun Nov 16 22:51:14 2025 read: IOPS=44, BW=179KiB/s (183kB/s)(4976KiB/27855msec) slat (usec): min=2521, max=56721, avg=11389.75, stdev=5589.69 clat (msec): min=32, max=315, avg=164.20, stdev=34.59 lat (msec): min=41, max=321, avg=175.59, stdev=35.90 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 116], 10.00th=[ 125], 20.00th=[ 136], | 30.00th=[ 146], 40.00th=[ 153], 50.00th=[ 161], 60.00th=[ 169], | 70.00th=[ 178], 80.00th=[ 192], 90.00th=[ 211], 95.00th=[ 228], | 99.00th=[ 259], 99.50th=[ 266], 99.90th=[ 296], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 83, max= 262, per=24.75%, avg=177.93, stdev=39.78, samples=55 iops : min= 20, max= 65, avg=44.05, stdev= 9.98, samples=55 write: IOPS=47, BW=189KiB/s (194kB/s)(5264KiB/27855msec); 0 zone resets slat (usec): min=27, max=4271, avg=146.60, stdev=317.86 clat (msec): min=71, max=315, avg=170.70, stdev=32.03 lat (msec): min=71, max=315, avg=170.85, stdev=32.03 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 124], 10.00th=[ 133], 20.00th=[ 144], | 30.00th=[ 155], 40.00th=[ 161], 50.00th=[ 169], 60.00th=[ 176], | 70.00th=[ 184], 80.00th=[ 197], 90.00th=[ 215], 95.00th=[ 232], | 99.00th=[ 257], 99.50th=[ 266], 99.90th=[ 288], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 111, max= 304, per=25.25%, avg=188.84, stdev=38.14, samples=55 iops : min= 27, max= 76, avg=46.80, stdev= 9.67, samples=55 lat (msec) : 50=0.04%, 100=1.02%, 250=97.27%, 500=1.68% cpu : usr=0.22%, sys=1.63%, ctx=4598, 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=185329: Sun Nov 16 22:51:14 2025 read: IOPS=44, BW=179KiB/s (184kB/s)(4984KiB/27787msec) slat (usec): min=38, max=40381, avg=11563.44, stdev=5394.58 clat (msec): min=28, max=297, avg=165.10, stdev=34.79 lat (msec): min=37, max=316, avg=176.67, stdev=36.03 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 115], 10.00th=[ 125], 20.00th=[ 138], | 30.00th=[ 146], 40.00th=[ 155], 50.00th=[ 163], 60.00th=[ 171], | 70.00th=[ 182], 80.00th=[ 192], 90.00th=[ 209], 95.00th=[ 224], | 99.00th=[ 266], 99.50th=[ 275], 99.90th=[ 288], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 111, max= 280, per=24.88%, avg=178.87, stdev=38.82, samples=55 iops : min= 27, max= 70, avg=44.31, stdev= 9.77, samples=55 write: IOPS=47, BW=189KiB/s (194kB/s)(5256KiB/27787msec); 0 zone resets slat (usec): min=28, max=9708, avg=147.84, stdev=397.78 clat (msec): min=81, max=329, avg=170.13, stdev=32.84 lat (msec): min=81, max=329, avg=170.28, stdev=32.85 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 125], 10.00th=[ 133], 20.00th=[ 144], | 30.00th=[ 153], 40.00th=[ 159], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 184], 80.00th=[ 194], 90.00th=[ 213], 95.00th=[ 230], | 99.00th=[ 271], 99.50th=[ 300], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 79, max= 276, per=25.07%, avg=187.51, stdev=37.45, samples=55 iops : min= 19, max= 69, avg=46.47, stdev= 9.43, samples=55 lat (msec) : 50=0.16%, 100=0.78%, 250=97.30%, 500=1.76% cpu : usr=0.22%, sys=1.66%, ctx=4189, 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=185330: Sun Nov 16 22:51:14 2025 read: IOPS=45, BW=181KiB/s (186kB/s)(5060KiB/27907msec) slat (usec): min=2240, max=56027, avg=11323.60, stdev=5209.30 clat (msec): min=18, max=277, avg=165.27, stdev=32.83 lat (msec): min=29, max=301, avg=176.59, stdev=33.88 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 117], 10.00th=[ 126], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 171], | 70.00th=[ 182], 80.00th=[ 190], 90.00th=[ 207], 95.00th=[ 224], | 99.00th=[ 257], 99.50th=[ 264], 99.90th=[ 275], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 76, max= 256, per=25.20%, avg=181.18, stdev=33.89, samples=55 iops : min= 19, max= 64, avg=44.89, stdev= 8.58, samples=55 write: IOPS=46, BW=186KiB/s (190kB/s)(5180KiB/27907msec); 0 zone resets slat (usec): min=30, max=5372, avg=148.53, stdev=330.98 clat (msec): min=84, max=301, avg=169.91, stdev=31.14 lat (msec): min=84, max=301, avg=170.06, stdev=31.13 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 126], 10.00th=[ 134], 20.00th=[ 144], | 30.00th=[ 153], 40.00th=[ 161], 50.00th=[ 167], 60.00th=[ 174], | 70.00th=[ 184], 80.00th=[ 194], 90.00th=[ 209], 95.00th=[ 224], | 99.00th=[ 268], 99.50th=[ 288], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 97, max= 271, per=24.73%, avg=185.00, stdev=37.09, samples=55 iops : min= 24, max= 67, avg=45.84, stdev= 9.28, samples=55 lat (msec) : 20=0.04%, 50=0.04%, 100=0.59%, 250=97.58%, 500=1.76% cpu : usr=0.20%, sys=1.70%, ctx=4685, 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), 179KiB/s-181KiB/s (183kB/s-186kB/s), io=19.6MiB (20.5MB), run=27787-27910msec WRITE: bw=749KiB/s (767kB/s), 186KiB/s-189KiB/s (190kB/s-194kB/s), io=20.4MiB (21.4MB), run=27787-27910msec 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=185338: Sun Nov 16 22:51:22 2025 read: IOPS=2, BW=106MiB/s (111MB/s)(40.0MiB/377msec) slat (nsec): min=14029k, max=14029k, avg=14028813.00, stdev= 0.00 clat (nsec): min=344051k, max=344051k, avg=344050578.00, stdev= 0.00 lat (nsec): min=358084k, max=358084k, avg=358083749.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 347], 5.00th=[ 347], 10.00th=[ 347], 20.00th=[ 347], | 30.00th=[ 347], 40.00th=[ 347], 50.00th=[ 347], 60.00th=[ 347], | 70.00th=[ 347], 80.00th=[ 347], 90.00th=[ 347], 95.00th=[ 347], | 99.00th=[ 347], 99.50th=[ 347], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.19%, ctx=12, majf=0, minf=10 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=106MiB/s (111MB/s), 106MiB/s-106MiB/s (111MB/s-111MB/s), io=40.0MiB (41.9MB), run=377-377msec 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