== sanity test 398c: run fio to test AIO ================= 00:07:32 (1788840452) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.490675 s, 85.5 MB/s osc.lustre-OST0000-osc-ffff8f7a05273000.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=181088: Tue Sep 8 00:08:08 2026 write: IOPS=99, BW=397KiB/s (406kB/s)(10.0MiB/25800msec); 0 zone resets slat (usec): min=26, max=15548, avg=195.05, stdev=665.53 clat (msec): min=18, max=268, avg=160.92, stdev=36.81 lat (msec): min=18, max=268, avg=161.11, stdev=36.81 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 108], 10.00th=[ 120], 20.00th=[ 132], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 161], 60.00th=[ 167], | 70.00th=[ 178], 80.00th=[ 188], 90.00th=[ 213], 95.00th=[ 230], | 99.00th=[ 255], 99.50th=[ 262], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 264, max= 607, per=24.99%, avg=395.41, stdev=76.34, samples=51 iops : min= 66, max= 151, avg=98.47, stdev=19.10, samples=51 lat (msec) : 20=0.08%, 50=0.20%, 100=2.38%, 250=95.94%, 500=1.41% cpu : usr=0.18%, sys=1.00%, ctx=2508, 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=181089: Tue Sep 8 00:08:08 2026 write: IOPS=98, BW=396KiB/s (405kB/s)(10.0MiB/25880msec); 0 zone resets slat (usec): min=22, max=11415, avg=188.05, stdev=620.78 clat (msec): min=33, max=277, avg=160.68, stdev=37.51 lat (msec): min=33, max=277, avg=160.87, stdev=37.50 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 108], 10.00th=[ 118], 20.00th=[ 129], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 159], 60.00th=[ 167], | 70.00th=[ 176], 80.00th=[ 188], 90.00th=[ 213], 95.00th=[ 234], | 99.00th=[ 268], 99.50th=[ 275], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 256, max= 607, per=24.94%, avg=394.53, stdev=73.11, samples=51 iops : min= 64, max= 151, avg=98.25, stdev=18.30, samples=51 lat (msec) : 50=0.08%, 100=2.54%, 250=94.18%, 500=3.20% cpu : usr=0.19%, sys=0.92%, ctx=2564, 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=181090: Tue Sep 8 00:08:08 2026 write: IOPS=99, BW=396KiB/s (406kB/s)(10.0MiB/25828msec); 0 zone resets slat (usec): min=27, max=15061, avg=209.43, stdev=768.02 clat (msec): min=29, max=270, avg=160.49, stdev=37.07 lat (msec): min=29, max=270, avg=160.70, stdev=37.08 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 108], 10.00th=[ 121], 20.00th=[ 130], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 176], 80.00th=[ 188], 90.00th=[ 213], 95.00th=[ 230], | 99.00th=[ 262], 99.50th=[ 264], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 255, max= 615, per=24.94%, avg=394.49, stdev=80.40, samples=51 iops : min= 63, max= 153, avg=98.24, stdev=20.13, samples=51 lat (msec) : 50=0.12%, 100=3.67%, 250=94.30%, 500=1.91% cpu : usr=0.15%, sys=0.82%, ctx=2029, 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=181091: Tue Sep 8 00:08:08 2026 write: IOPS=98, BW=396KiB/s (405kB/s)(10.0MiB/25879msec); 0 zone resets slat (usec): min=27, max=13828, avg=189.39, stdev=664.58 clat (msec): min=16, max=281, avg=160.74, stdev=36.56 lat (msec): min=17, max=281, avg=160.93, stdev=36.56 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 109], 10.00th=[ 118], 20.00th=[ 130], | 30.00th=[ 140], 40.00th=[ 153], 50.00th=[ 161], 60.00th=[ 167], | 70.00th=[ 174], 80.00th=[ 190], 90.00th=[ 211], 95.00th=[ 228], | 99.00th=[ 257], 99.50th=[ 262], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 284] bw ( KiB/s): min= 256, max= 536, per=24.93%, avg=394.47, stdev=72.75, samples=51 iops : min= 64, max= 134, avg=98.24, stdev=18.25, samples=51 lat (msec) : 20=0.04%, 50=0.12%, 100=2.11%, 250=96.13%, 500=1.60% cpu : usr=0.14%, sys=0.85%, ctx=2466, 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=1583KiB/s (1621kB/s), 396KiB/s-397KiB/s (405kB/s-406kB/s), io=40.0MiB (41.9MB), run=25800-25880msec 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=181107: Tue Sep 8 00:08:45 2026 read: IOPS=45, BW=183KiB/s (188kB/s)(5048KiB/27531msec) slat (usec): min=31, max=55788, avg=11822.01, stdev=6243.35 clat (msec): min=27, max=346, avg=162.41, stdev=36.44 lat (msec): min=48, max=356, avg=174.24, stdev=37.85 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 111], 10.00th=[ 121], 20.00th=[ 132], | 30.00th=[ 142], 40.00th=[ 150], 50.00th=[ 159], 60.00th=[ 167], | 70.00th=[ 178], 80.00th=[ 192], 90.00th=[ 211], 95.00th=[ 228], | 99.00th=[ 264], 99.50th=[ 271], 99.90th=[ 292], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 76, max= 262, per=25.15%, avg=182.35, stdev=41.42, samples=54 iops : min= 19, max= 65, avg=45.11, stdev=10.36, samples=54 write: IOPS=47, BW=189KiB/s (193kB/s)(5192KiB/27531msec); 0 zone resets slat (usec): min=34, max=14475, avg=205.58, stdev=604.75 clat (msec): min=86, max=310, avg=166.75, stdev=35.09 lat (msec): min=86, max=310, avg=166.96, stdev=35.08 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 118], 10.00th=[ 126], 20.00th=[ 138], | 30.00th=[ 146], 40.00th=[ 155], 50.00th=[ 163], 60.00th=[ 171], | 70.00th=[ 182], 80.00th=[ 197], 90.00th=[ 215], 95.00th=[ 228], | 99.00th=[ 264], 99.50th=[ 279], 99.90th=[ 305], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 99, max= 278, per=24.96%, avg=188.48, stdev=36.78, samples=54 iops : min= 24, max= 69, avg=46.65, stdev= 9.20, samples=54 lat (msec) : 50=0.04%, 100=1.21%, 250=96.64%, 500=2.11% cpu : usr=0.17%, sys=1.75%, ctx=4333, 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=181108: Tue Sep 8 00:08:45 2026 read: IOPS=44, BW=180KiB/s (184kB/s)(4976KiB/27670msec) slat (usec): min=114, max=111602, avg=11943.42, stdev=7490.01 clat (msec): min=13, max=347, avg=161.23, stdev=39.16 lat (msec): min=32, max=359, avg=173.18, stdev=40.61 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 106], 10.00th=[ 117], 20.00th=[ 131], | 30.00th=[ 142], 40.00th=[ 150], 50.00th=[ 159], 60.00th=[ 167], | 70.00th=[ 176], 80.00th=[ 190], 90.00th=[ 213], 95.00th=[ 232], | 99.00th=[ 259], 99.50th=[ 284], 99.90th=[ 317], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 60, max= 255, per=24.62%, avg=178.47, stdev=40.77, samples=55 iops : min= 15, max= 63, avg=44.15, stdev=10.18, samples=55 write: IOPS=47, BW=190KiB/s (195kB/s)(5264KiB/27670msec); 0 zone resets slat (usec): min=28, max=12452, avg=227.71, stdev=750.94 clat (msec): min=31, max=372, avg=169.41, stdev=38.92 lat (msec): min=32, max=373, avg=169.64, stdev=38.91 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 115], 10.00th=[ 127], 20.00th=[ 140], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 167], 60.00th=[ 176], | 70.00th=[ 184], 80.00th=[ 197], 90.00th=[ 215], 95.00th=[ 234], | 99.00th=[ 288], 99.50th=[ 338], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 106, max= 269, per=25.07%, avg=189.29, stdev=37.35, samples=55 iops : min= 26, max= 67, avg=46.85, stdev= 9.37, samples=55 lat (msec) : 20=0.04%, 50=0.35%, 100=2.54%, 250=94.77%, 500=2.30% cpu : usr=0.26%, sys=1.62%, ctx=4277, 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=181109: Tue Sep 8 00:08:45 2026 read: IOPS=45, BW=181KiB/s (185kB/s)(4984KiB/27529msec) slat (usec): min=34, max=62903, avg=11829.36, stdev=6446.77 clat (msec): min=69, max=334, avg=162.69, stdev=37.14 lat (msec): min=88, max=345, avg=174.53, stdev=38.21 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 110], 10.00th=[ 118], 20.00th=[ 131], | 30.00th=[ 142], 40.00th=[ 150], 50.00th=[ 159], 60.00th=[ 167], | 70.00th=[ 180], 80.00th=[ 192], 90.00th=[ 213], 95.00th=[ 230], | 99.00th=[ 266], 99.50th=[ 271], 99.90th=[ 305], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 103, max= 303, per=24.94%, avg=180.83, stdev=42.18, samples=54 iops : min= 25, max= 75, avg=44.72, stdev=10.57, samples=54 write: IOPS=47, BW=191KiB/s (196kB/s)(5256KiB/27529msec); 0 zone resets slat (usec): min=26, max=12198, avg=211.25, stdev=651.18 clat (msec): min=17, max=301, avg=168.97, stdev=35.96 lat (msec): min=17, max=301, avg=169.19, stdev=35.97 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 117], 10.00th=[ 127], 20.00th=[ 140], | 30.00th=[ 150], 40.00th=[ 159], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 184], 80.00th=[ 197], 90.00th=[ 215], 95.00th=[ 236], | 99.00th=[ 268], 99.50th=[ 284], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 87, max= 285, per=25.19%, avg=190.22, stdev=38.51, samples=54 iops : min= 21, max= 71, avg=47.07, stdev= 9.65, samples=54 lat (msec) : 20=0.04%, 100=1.88%, 250=95.78%, 500=2.30% cpu : usr=0.21%, sys=1.64%, ctx=4220, 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=181110: Tue Sep 8 00:08:45 2026 read: IOPS=45, BW=184KiB/s (188kB/s)(5060KiB/27559msec) slat (usec): min=2835, max=55914, avg=11838.15, stdev=6295.37 clat (msec): min=5, max=341, avg=162.09, stdev=38.93 lat (msec): min=15, max=369, avg=173.93, stdev=40.48 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 106], 10.00th=[ 117], 20.00th=[ 130], | 30.00th=[ 140], 40.00th=[ 150], 50.00th=[ 159], 60.00th=[ 167], | 70.00th=[ 178], 80.00th=[ 194], 90.00th=[ 215], 95.00th=[ 236], | 99.00th=[ 264], 99.50th=[ 271], 99.90th=[ 305], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 84, max= 295, per=25.23%, avg=182.94, stdev=38.75, samples=54 iops : min= 21, max= 73, avg=45.26, stdev= 9.67, samples=54 write: IOPS=46, BW=188KiB/s (192kB/s)(5180KiB/27559msec); 0 zone resets slat (usec): min=28, max=12294, avg=181.15, stdev=557.32 clat (msec): min=82, max=311, avg=167.58, stdev=35.05 lat (msec): min=82, max=311, avg=167.77, stdev=35.03 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 118], 10.00th=[ 127], 20.00th=[ 138], | 30.00th=[ 146], 40.00th=[ 155], 50.00th=[ 163], 60.00th=[ 174], | 70.00th=[ 182], 80.00th=[ 197], 90.00th=[ 215], 95.00th=[ 232], | 99.00th=[ 266], 99.50th=[ 284], 99.90th=[ 305], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 91, max= 300, per=24.79%, avg=187.19, stdev=39.33, samples=54 iops : min= 22, max= 75, avg=46.31, stdev= 9.89, samples=54 lat (msec) : 10=0.04%, 50=0.04%, 100=1.91%, 250=95.51%, 500=2.50% cpu : usr=0.25%, sys=1.62%, ctx=3923, 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=725KiB/s (743kB/s), 180KiB/s-184KiB/s (184kB/s-188kB/s), io=19.6MiB (20.5MB), run=27529-27670msec WRITE: bw=755KiB/s (773kB/s), 188KiB/s-191KiB/s (192kB/s-196kB/s), io=20.4MiB (21.4MB), run=27529-27670msec 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=181118: Tue Sep 8 00:08:53 2026 read: IOPS=2, BW=110MiB/s (115MB/s)(40.0MiB/365msec) slat (nsec): min=22222k, max=22222k, avg=22221838.00, stdev= 0.00 clat (nsec): min=313224k, max=313224k, avg=313224375.00, stdev= 0.00 lat (nsec): min=335451k, max=335451k, avg=335451002.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 313], 5.00th=[ 313], 10.00th=[ 313], 20.00th=[ 313], | 30.00th=[ 313], 40.00th=[ 313], 50.00th=[ 313], 60.00th=[ 313], | 70.00th=[ 313], 80.00th=[ 313], 90.00th=[ 313], 95.00th=[ 313], | 99.00th=[ 313], 99.50th=[ 313], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.85%, ctx=7, 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=110MiB/s (115MB/s), 110MiB/s-110MiB/s (115MB/s-115MB/s), io=40.0MiB (41.9MB), run=365-365msec 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