== sanity test 398c: run fio to test AIO ================= 20:10:04 (1763341804) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.451912 s, 92.8 MB/s osc.lustre-OST0000-osc-ffffa06583f96800.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=184435: Sun Nov 16 20:10:40 2025 write: IOPS=96, BW=387KiB/s (397kB/s)(10.0MiB/26428msec); 0 zone resets slat (usec): min=27, max=8106, avg=114.22, stdev=412.66 clat (msec): min=41, max=349, avg=164.20, stdev=38.14 lat (msec): min=41, max=349, avg=164.32, stdev=38.14 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 114], 10.00th=[ 123], 20.00th=[ 134], | 30.00th=[ 146], 40.00th=[ 153], 50.00th=[ 161], 60.00th=[ 167], | 70.00th=[ 176], 80.00th=[ 188], 90.00th=[ 205], 95.00th=[ 236], | 99.00th=[ 296], 99.50th=[ 338], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 351] bw ( KiB/s): min= 250, max= 518, per=24.96%, avg=386.44, stdev=72.12, samples=52 iops : min= 62, max= 129, avg=96.31, stdev=18.06, samples=52 lat (msec) : 50=0.04%, 100=0.08%, 250=96.09%, 500=3.79% cpu : usr=0.13%, sys=0.74%, ctx=1525, 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=184436: Sun Nov 16 20:10:40 2025 write: IOPS=97, BW=388KiB/s (398kB/s)(10.0MiB/26364msec); 0 zone resets slat (usec): min=26, max=13053, avg=118.83, stdev=470.31 clat (msec): min=25, max=376, avg=164.43, stdev=41.38 lat (msec): min=25, max=376, avg=164.55, stdev=41.37 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 114], 10.00th=[ 121], 20.00th=[ 134], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 176], 80.00th=[ 188], 90.00th=[ 213], 95.00th=[ 224], | 99.00th=[ 338], 99.50th=[ 355], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 253, max= 526, per=25.16%, avg=389.41, stdev=77.75, samples=51 iops : min= 63, max= 131, avg=97.06, stdev=19.45, samples=51 lat (msec) : 50=0.12%, 100=0.94%, 250=95.35%, 500=3.59% cpu : usr=0.16%, sys=0.72%, ctx=1284, 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=184437: Sun Nov 16 20:10:40 2025 write: IOPS=96, BW=387KiB/s (397kB/s)(10.0MiB/26430msec); 0 zone resets slat (usec): min=27, max=12045, avg=169.59, stdev=593.42 clat (msec): min=15, max=358, avg=164.24, stdev=40.05 lat (msec): min=15, max=358, avg=164.41, stdev=40.05 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 114], 10.00th=[ 121], 20.00th=[ 133], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 159], 60.00th=[ 167], | 70.00th=[ 178], 80.00th=[ 192], 90.00th=[ 209], 95.00th=[ 236], | 99.00th=[ 313], 99.50th=[ 351], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 359] bw ( KiB/s): min= 254, max= 516, per=24.96%, avg=386.33, stdev=67.62, samples=52 iops : min= 63, max= 129, avg=96.27, stdev=16.93, samples=52 lat (msec) : 20=0.04%, 50=0.27%, 100=1.02%, 250=95.62%, 500=3.05% cpu : usr=0.20%, sys=1.09%, ctx=2860, 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=184438: Sun Nov 16 20:10:40 2025 write: IOPS=96, BW=387KiB/s (396kB/s)(10.0MiB/26448msec); 0 zone resets slat (usec): min=26, max=6575, avg=152.38, stdev=411.93 clat (msec): min=18, max=359, avg=164.19, stdev=39.48 lat (msec): min=18, max=359, avg=164.34, stdev=39.49 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 117], 10.00th=[ 123], 20.00th=[ 134], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 161], 60.00th=[ 167], | 70.00th=[ 178], 80.00th=[ 190], 90.00th=[ 207], 95.00th=[ 226], | 99.00th=[ 326], 99.50th=[ 334], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 232, max= 520, per=24.93%, avg=385.98, stdev=73.71, samples=52 iops : min= 58, max= 130, avg=96.19, stdev=18.39, samples=52 lat (msec) : 20=0.04%, 50=0.20%, 100=1.09%, 250=95.35%, 500=3.32% cpu : usr=0.22%, sys=0.96%, ctx=2505, 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=1549KiB/s (1586kB/s), 387KiB/s-388KiB/s (396kB/s-398kB/s), io=40.0MiB (41.9MB), run=26364-26448msec 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=184453: Sun Nov 16 20:11:15 2025 read: IOPS=47, BW=189KiB/s (194kB/s)(5048KiB/26704msec) slat (usec): min=2553, max=47159, avg=11028.54, stdev=4623.73 clat (msec): min=69, max=312, avg=157.55, stdev=30.82 lat (msec): min=73, max=322, avg=168.59, stdev=31.66 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 112], 10.00th=[ 123], 20.00th=[ 133], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 155], 60.00th=[ 163], | 70.00th=[ 171], 80.00th=[ 180], 90.00th=[ 199], 95.00th=[ 209], | 99.00th=[ 249], 99.50th=[ 259], 99.90th=[ 300], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 79, max= 272, per=25.12%, avg=188.67, stdev=36.06, samples=52 iops : min= 19, max= 68, avg=46.71, stdev= 9.05, samples=52 write: IOPS=48, BW=194KiB/s (199kB/s)(5192KiB/26704msec); 0 zone resets slat (usec): min=27, max=8209, avg=181.91, stdev=492.87 clat (msec): min=31, max=330, avg=162.33, stdev=30.63 lat (msec): min=31, max=330, avg=162.51, stdev=30.65 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 118], 10.00th=[ 126], 20.00th=[ 140], | 30.00th=[ 148], 40.00th=[ 155], 50.00th=[ 161], 60.00th=[ 167], | 70.00th=[ 176], 80.00th=[ 184], 90.00th=[ 199], 95.00th=[ 218], | 99.00th=[ 251], 99.50th=[ 259], 99.90th=[ 313], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 124, max= 263, per=24.93%, avg=194.94, stdev=33.83, samples=52 iops : min= 31, max= 65, avg=48.25, stdev= 8.44, samples=52 lat (msec) : 50=0.04%, 100=1.60%, 250=97.46%, 500=0.90% cpu : usr=0.27%, sys=1.81%, ctx=4467, 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=184454: Sun Nov 16 20:11:15 2025 read: IOPS=46, BW=187KiB/s (191kB/s)(4976KiB/26626msec) slat (usec): min=3075, max=51220, avg=11143.48, stdev=4827.29 clat (msec): min=23, max=349, avg=158.87, stdev=33.23 lat (msec): min=31, max=364, avg=170.02, stdev=34.20 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 110], 10.00th=[ 123], 20.00th=[ 133], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 174], 80.00th=[ 184], 90.00th=[ 199], 95.00th=[ 218], | 99.00th=[ 255], 99.50th=[ 271], 99.90th=[ 338], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 95, max= 248, per=24.78%, avg=186.08, stdev=36.08, samples=52 iops : min= 23, max= 62, avg=46.04, stdev= 9.10, samples=52 write: IOPS=49, BW=198KiB/s (202kB/s)(5264KiB/26626msec); 0 zone resets slat (usec): min=29, max=9831, avg=179.96, stdev=487.18 clat (msec): min=57, max=290, avg=161.20, stdev=28.37 lat (msec): min=57, max=290, avg=161.38, stdev=28.38 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 120], 10.00th=[ 128], 20.00th=[ 138], | 30.00th=[ 146], 40.00th=[ 155], 50.00th=[ 161], 60.00th=[ 167], | 70.00th=[ 174], 80.00th=[ 184], 90.00th=[ 197], 95.00th=[ 211], | 99.00th=[ 236], 99.50th=[ 251], 99.90th=[ 262], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 120, max= 288, per=25.38%, avg=198.50, stdev=37.11, samples=52 iops : min= 30, max= 72, avg=49.15, stdev= 9.25, samples=52 lat (msec) : 50=0.08%, 100=1.48%, 250=97.42%, 500=1.02% cpu : usr=0.26%, sys=1.72%, ctx=4498, 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=184455: Sun Nov 16 20:11:15 2025 read: IOPS=47, BW=188KiB/s (193kB/s)(4984KiB/26485msec) slat (usec): min=37, max=49139, avg=11166.58, stdev=5108.48 clat (msec): min=28, max=338, avg=156.96, stdev=31.83 lat (msec): min=28, max=345, avg=168.14, stdev=32.89 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 111], 10.00th=[ 120], 20.00th=[ 130], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 174], 80.00th=[ 182], 90.00th=[ 194], 95.00th=[ 207], | 99.00th=[ 251], 99.50th=[ 268], 99.90th=[ 292], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 111, max= 270, per=25.10%, avg=188.54, stdev=38.43, samples=52 iops : min= 27, max= 67, avg=46.65, stdev= 9.63, samples=52 write: IOPS=49, BW=198KiB/s (203kB/s)(5256KiB/26485msec); 0 zone resets slat (usec): min=31, max=11085, avg=169.93, stdev=480.69 clat (msec): min=88, max=326, avg=162.44, stdev=30.84 lat (msec): min=88, max=329, avg=162.62, stdev=30.87 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 118], 10.00th=[ 126], 20.00th=[ 138], | 30.00th=[ 146], 40.00th=[ 155], 50.00th=[ 161], 60.00th=[ 167], | 70.00th=[ 176], 80.00th=[ 184], 90.00th=[ 201], 95.00th=[ 220], | 99.00th=[ 253], 99.50th=[ 279], 99.90th=[ 309], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 111, max= 288, per=25.33%, avg=198.08, stdev=36.21, samples=52 iops : min= 27, max= 72, avg=49.04, stdev= 9.10, samples=52 lat (msec) : 50=0.08%, 100=1.76%, 250=97.07%, 500=1.09% cpu : usr=0.23%, sys=1.80%, ctx=4334, 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=184456: Sun Nov 16 20:11:15 2025 read: IOPS=47, BW=189KiB/s (194kB/s)(5060KiB/26703msec) slat (usec): min=2894, max=51821, avg=11091.13, stdev=4716.92 clat (msec): min=18, max=276, avg=157.13, stdev=31.22 lat (msec): min=26, max=287, avg=168.23, stdev=32.06 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 112], 10.00th=[ 121], 20.00th=[ 132], | 30.00th=[ 140], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 163], | 70.00th=[ 171], 80.00th=[ 182], 90.00th=[ 199], 95.00th=[ 211], | 99.00th=[ 243], 99.50th=[ 249], 99.90th=[ 271], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 127, max= 264, per=25.20%, avg=189.25, stdev=34.73, samples=52 iops : min= 31, max= 66, avg=46.83, stdev= 8.72, samples=52 write: IOPS=48, BW=194KiB/s (199kB/s)(5180KiB/26703msec); 0 zone resets slat (usec): min=33, max=6622, avg=183.50, stdev=478.38 clat (msec): min=56, max=276, avg=163.34, stdev=29.76 lat (msec): min=57, max=276, avg=163.53, stdev=29.80 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 120], 10.00th=[ 127], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 155], 50.00th=[ 161], 60.00th=[ 169], | 70.00th=[ 178], 80.00th=[ 188], 90.00th=[ 203], 95.00th=[ 218], | 99.00th=[ 241], 99.50th=[ 247], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 112, max= 256, per=24.74%, avg=193.50, stdev=37.36, samples=52 iops : min= 28, max= 64, avg=47.90, stdev= 9.41, samples=52 lat (msec) : 20=0.04%, 100=1.41%, 250=98.20%, 500=0.35% cpu : usr=0.28%, sys=1.70%, ctx=4502, 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=751KiB/s (770kB/s), 187KiB/s-189KiB/s (191kB/s-194kB/s), io=19.6MiB (20.5MB), run=26485-26704msec WRITE: bw=782KiB/s (801kB/s), 194KiB/s-198KiB/s (199kB/s-203kB/s), io=20.4MiB (21.4MB), run=26485-26704msec 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=184464: Sun Nov 16 20:11:27 2025 read: IOPS=2, BW=94.1MiB/s (98.7MB/s)(40.0MiB/425msec) slat (nsec): min=14815k, max=14815k, avg=14814709.00, stdev= 0.00 clat (nsec): min=377318k, max=377318k, avg=377317775.00, stdev= 0.00 lat (nsec): min=392138k, max=392138k, avg=392138039.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 376], 10.00th=[ 376], 20.00th=[ 376], | 30.00th=[ 376], 40.00th=[ 376], 50.00th=[ 376], 60.00th=[ 376], | 70.00th=[ 376], 80.00th=[ 376], 90.00th=[ 376], 95.00th=[ 376], | 99.00th=[ 376], 99.50th=[ 376], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.36%, ctx=12, 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=94.1MiB/s (98.7MB/s), 94.1MiB/s-94.1MiB/s (98.7MB/s-98.7MB/s), io=40.0MiB (41.9MB), run=425-425msec 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