== sanity test 398c: run fio to test AIO ================= 12:44:46 (1788626686) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.538628 s, 77.9 MB/s osc.lustre-OST0000-osc-ffff94b2890a2800.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=181194: Sat Sep 5 12:45:23 2026 write: IOPS=92, BW=369KiB/s (378kB/s)(10.0MiB/27738msec); 0 zone resets slat (usec): min=22, max=21388, avg=145.90, stdev=623.90 clat (msec): min=28, max=355, avg=172.70, stdev=49.12 lat (msec): min=28, max=355, avg=172.85, stdev=49.11 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 107], 10.00th=[ 121], 20.00th=[ 134], | 30.00th=[ 142], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 180], | 70.00th=[ 197], 80.00th=[ 213], 90.00th=[ 239], 95.00th=[ 262], | 99.00th=[ 305], 99.50th=[ 355], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 231, max= 619, per=24.93%, avg=367.67, stdev=82.83, samples=55 iops : min= 57, max= 154, avg=91.51, stdev=20.67, samples=55 lat (msec) : 50=0.66%, 100=2.42%, 250=89.65%, 500=7.27% cpu : usr=0.17%, sys=0.74%, ctx=1597, 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=181195: Sat Sep 5 12:45:23 2026 write: IOPS=92, BW=371KiB/s (380kB/s)(10.0MiB/27564msec); 0 zone resets slat (usec): min=28, max=19636, avg=184.08, stdev=727.57 clat (msec): min=16, max=367, avg=171.86, stdev=49.39 lat (msec): min=17, max=367, avg=172.05, stdev=49.40 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 102], 10.00th=[ 121], 20.00th=[ 134], | 30.00th=[ 144], 40.00th=[ 155], 50.00th=[ 167], 60.00th=[ 180], | 70.00th=[ 192], 80.00th=[ 211], 90.00th=[ 239], 95.00th=[ 262], | 99.00th=[ 300], 99.50th=[ 326], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 168, max= 682, per=25.07%, avg=369.76, stdev=91.92, samples=54 iops : min= 42, max= 170, avg=92.02, stdev=22.95, samples=54 lat (msec) : 20=0.04%, 50=1.05%, 100=3.63%, 250=88.12%, 500=7.15% cpu : usr=0.20%, sys=0.76%, ctx=2957, 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=181196: Sat Sep 5 12:45:23 2026 write: IOPS=92, BW=369KiB/s (378kB/s)(10.0MiB/27742msec); 0 zone resets slat (usec): min=21, max=15510, avg=170.31, stdev=678.08 clat (msec): min=24, max=366, avg=172.64, stdev=47.83 lat (msec): min=24, max=366, avg=172.81, stdev=47.84 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 107], 10.00th=[ 124], 20.00th=[ 136], | 30.00th=[ 146], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 178], | 70.00th=[ 192], 80.00th=[ 213], 90.00th=[ 236], 95.00th=[ 253], | 99.00th=[ 309], 99.50th=[ 347], 99.90th=[ 355], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 183, max= 528, per=24.77%, avg=365.43, stdev=75.85, samples=54 iops : min= 45, max= 132, avg=90.87, stdev=19.04, samples=54 lat (msec) : 50=0.74%, 100=3.59%, 250=89.53%, 500=6.13% cpu : usr=0.12%, sys=0.81%, ctx=2040, 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=181197: Sat Sep 5 12:45:23 2026 write: IOPS=92, BW=369KiB/s (378kB/s)(10.0MiB/27754msec); 0 zone resets slat (usec): min=26, max=13657, avg=201.48, stdev=704.59 clat (msec): min=14, max=377, avg=172.61, stdev=48.03 lat (msec): min=14, max=377, avg=172.82, stdev=48.03 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 109], 10.00th=[ 122], 20.00th=[ 136], | 30.00th=[ 144], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 178], | 70.00th=[ 192], 80.00th=[ 213], 90.00th=[ 243], 95.00th=[ 262], | 99.00th=[ 317], 99.50th=[ 338], 99.90th=[ 359], 99.95th=[ 363], | 99.99th=[ 376] bw ( KiB/s): min= 215, max= 588, per=24.78%, avg=365.54, stdev=80.52, samples=54 iops : min= 53, max= 147, avg=90.87, stdev=20.18, samples=54 lat (msec) : 20=0.08%, 50=0.16%, 100=3.48%, 250=88.52%, 500=7.77% cpu : usr=0.18%, sys=0.88%, ctx=2549, 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=1476KiB/s (1511kB/s), 369KiB/s-371KiB/s (378kB/s-380kB/s), io=40.0MiB (41.9MB), run=27564-27754msec 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=181212: Sat Sep 5 12:46:01 2026 read: IOPS=42, BW=169KiB/s (173kB/s)(5048KiB/29951msec) slat (usec): min=2044, max=56270, avg=12888.29, stdev=7485.37 clat (msec): min=27, max=326, avg=176.97, stdev=42.04 lat (msec): min=34, max=341, avg=189.86, stdev=43.89 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 115], 10.00th=[ 125], 20.00th=[ 142], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 176], 60.00th=[ 184], | 70.00th=[ 194], 80.00th=[ 211], 90.00th=[ 234], 95.00th=[ 253], | 99.00th=[ 292], 99.50th=[ 300], 99.90th=[ 321], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 91, max= 264, per=25.05%, avg=167.61, stdev=35.36, samples=59 iops : min= 22, max= 66, avg=41.44, stdev= 8.88, samples=59 write: IOPS=43, BW=173KiB/s (178kB/s)(5192KiB/29951msec); 0 zone resets slat (usec): min=29, max=11324, avg=209.77, stdev=633.81 clat (msec): min=78, max=341, avg=181.94, stdev=39.66 lat (msec): min=78, max=341, avg=182.15, stdev=39.67 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 123], 10.00th=[ 136], 20.00th=[ 148], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 178], 60.00th=[ 190], | 70.00th=[ 201], 80.00th=[ 215], 90.00th=[ 232], 95.00th=[ 253], | 99.00th=[ 284], 99.50th=[ 309], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 91, max= 255, per=24.77%, avg=172.63, stdev=37.45, samples=59 iops : min= 22, max= 63, avg=42.69, stdev= 9.42, samples=59 lat (msec) : 50=0.04%, 100=1.21%, 250=93.20%, 500=5.55% cpu : usr=0.19%, sys=1.69%, ctx=4533, 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=181213: Sat Sep 5 12:46:01 2026 read: IOPS=41, BW=167KiB/s (171kB/s)(4976KiB/29884msec) slat (usec): min=29, max=61184, avg=12539.05, stdev=7452.22 clat (msec): min=27, max=325, avg=177.19, stdev=41.95 lat (msec): min=29, max=339, avg=189.73, stdev=43.83 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 116], 10.00th=[ 129], 20.00th=[ 144], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 174], 60.00th=[ 184], | 70.00th=[ 194], 80.00th=[ 211], 90.00th=[ 234], 95.00th=[ 253], | 99.00th=[ 288], 99.50th=[ 296], 99.90th=[ 313], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 95, max= 272, per=24.76%, avg=165.66, stdev=36.29, samples=59 iops : min= 23, max= 68, avg=40.95, stdev= 9.11, samples=59 write: IOPS=44, BW=176KiB/s (180kB/s)(5264KiB/29884msec); 0 zone resets slat (usec): min=30, max=18855, avg=194.61, stdev=780.36 clat (msec): min=61, max=303, avg=183.22, stdev=39.35 lat (msec): min=61, max=304, avg=183.41, stdev=39.32 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 124], 10.00th=[ 138], 20.00th=[ 150], | 30.00th=[ 161], 40.00th=[ 171], 50.00th=[ 180], 60.00th=[ 190], | 70.00th=[ 203], 80.00th=[ 218], 90.00th=[ 236], 95.00th=[ 255], | 99.00th=[ 279], 99.50th=[ 292], 99.90th=[ 300], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 87, max= 288, per=25.22%, avg=175.81, stdev=38.08, samples=59 iops : min= 21, max= 72, avg=43.53, stdev= 9.55, samples=59 lat (msec) : 50=0.16%, 100=1.29%, 250=92.73%, 500=5.82% cpu : usr=0.23%, sys=1.58%, ctx=4494, 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=181214: Sat Sep 5 12:46:01 2026 read: IOPS=41, BW=166KiB/s (170kB/s)(4984KiB/29963msec) slat (msec): min=2, max=169, avg=12.86, stdev= 8.53 clat (msec): min=25, max=325, avg=178.94, stdev=43.77 lat (msec): min=35, max=334, avg=191.80, stdev=44.98 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 115], 10.00th=[ 130], 20.00th=[ 142], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 176], 60.00th=[ 184], | 70.00th=[ 199], 80.00th=[ 215], 90.00th=[ 241], 95.00th=[ 259], | 99.00th=[ 292], 99.50th=[ 296], 99.90th=[ 313], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 92, max= 255, per=24.71%, avg=165.29, stdev=32.62, samples=59 iops : min= 23, max= 63, avg=40.88, stdev= 8.23, samples=59 write: IOPS=43, BW=175KiB/s (180kB/s)(5256KiB/29963msec); 0 zone resets slat (usec): min=30, max=25267, avg=229.95, stdev=1084.70 clat (msec): min=25, max=355, avg=180.30, stdev=41.23 lat (msec): min=25, max=355, avg=180.53, stdev=41.22 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 120], 10.00th=[ 133], 20.00th=[ 146], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 178], 60.00th=[ 188], | 70.00th=[ 199], 80.00th=[ 215], 90.00th=[ 234], 95.00th=[ 253], | 99.00th=[ 284], 99.50th=[ 288], 99.90th=[ 309], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 71, max= 280, per=24.92%, avg=173.66, stdev=47.10, samples=59 iops : min= 17, max= 70, avg=42.97, stdev=11.79, samples=59 lat (msec) : 50=0.23%, 100=1.91%, 250=91.25%, 500=6.60% cpu : usr=0.18%, sys=1.79%, ctx=4557, 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=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=181215: Sat Sep 5 12:46:01 2026 read: IOPS=42, BW=169KiB/s (173kB/s)(5060KiB/29947msec) slat (usec): min=2401, max=55746, avg=12805.20, stdev=7447.90 clat (msec): min=45, max=327, avg=177.33, stdev=42.02 lat (msec): min=51, max=340, avg=190.14, stdev=43.62 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 116], 10.00th=[ 129], 20.00th=[ 142], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 174], 60.00th=[ 184], | 70.00th=[ 197], 80.00th=[ 211], 90.00th=[ 234], 95.00th=[ 255], | 99.00th=[ 288], 99.50th=[ 300], 99.90th=[ 326], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 78, max= 232, per=25.17%, avg=168.41, stdev=34.98, samples=59 iops : min= 19, max= 58, avg=41.66, stdev= 8.75, samples=59 write: IOPS=43, BW=173KiB/s (177kB/s)(5180KiB/29947msec); 0 zone resets slat (usec): min=30, max=17324, avg=221.78, stdev=867.81 clat (msec): min=82, max=346, avg=181.56, stdev=40.09 lat (msec): min=82, max=347, avg=181.79, stdev=40.09 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 123], 10.00th=[ 134], 20.00th=[ 148], | 30.00th=[ 161], 40.00th=[ 169], 50.00th=[ 178], 60.00th=[ 186], | 70.00th=[ 197], 80.00th=[ 213], 90.00th=[ 239], 95.00th=[ 257], | 99.00th=[ 284], 99.50th=[ 292], 99.90th=[ 338], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 71, max= 255, per=24.70%, avg=172.15, stdev=40.16, samples=59 iops : min= 17, max= 63, avg=42.59, stdev=10.11, samples=59 lat (msec) : 50=0.08%, 100=1.48%, 250=91.91%, 500=6.52% cpu : usr=0.21%, sys=1.59%, ctx=4323, 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=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=670KiB/s (686kB/s), 166KiB/s-169KiB/s (170kB/s-173kB/s), io=19.6MiB (20.5MB), run=29884-29963msec WRITE: bw=697KiB/s (714kB/s), 173KiB/s-176KiB/s (177kB/s-180kB/s), io=20.4MiB (21.4MB), run=29884-29963msec 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=181225: Sat Sep 5 12:46:12 2026 read: IOPS=2, BW=98.5MiB/s (103MB/s)(40.0MiB/406msec) slat (nsec): min=24663k, max=24663k, avg=24663277.00, stdev= 0.00 clat (nsec): min=360675k, max=360675k, avg=360675131.00, stdev= 0.00 lat (nsec): min=385343k, max=385343k, avg=385342911.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 359], 5.00th=[ 359], 10.00th=[ 359], 20.00th=[ 359], | 30.00th=[ 359], 40.00th=[ 359], 50.00th=[ 359], 60.00th=[ 359], | 70.00th=[ 359], 80.00th=[ 359], 90.00th=[ 359], 95.00th=[ 359], | 99.00th=[ 359], 99.50th=[ 359], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.21%, ctx=4, 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=98.5MiB/s (103MB/s), 98.5MiB/s-98.5MiB/s (103MB/s-103MB/s), io=40.0MiB (41.9MB), run=406-406msec 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