== sanity test 398c: run fio to test AIO ================= 01:42:24 (1789450944) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.594768 s, 70.5 MB/s osc.lustre-OST0000-osc-ffff9bcb89aa5800.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=180064: Tue Sep 15 01:42:59 2026 write: IOPS=96, BW=386KiB/s (395kB/s)(10.0MiB/26549msec); 0 zone resets slat (usec): min=29, max=15579, avg=245.55, stdev=777.88 clat (msec): min=14, max=310, avg=165.07, stdev=39.71 lat (msec): min=14, max=310, avg=165.32, stdev=39.72 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 106], 10.00th=[ 121], 20.00th=[ 134], | 30.00th=[ 144], 40.00th=[ 155], 50.00th=[ 163], 60.00th=[ 174], | 70.00th=[ 182], 80.00th=[ 194], 90.00th=[ 213], 95.00th=[ 234], | 99.00th=[ 284], 99.50th=[ 292], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 309] bw ( KiB/s): min= 216, max= 561, per=24.83%, avg=382.60, stdev=70.17, samples=52 iops : min= 54, max= 140, avg=95.23, stdev=17.60, samples=52 lat (msec) : 20=0.08%, 50=0.12%, 100=3.95%, 250=92.89%, 500=2.97% cpu : usr=0.21%, sys=1.02%, ctx=2819, 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=180065: Tue Sep 15 01:42:59 2026 write: IOPS=96, BW=386KiB/s (395kB/s)(10.0MiB/26540msec); 0 zone resets slat (usec): min=22, max=14256, avg=265.42, stdev=849.77 clat (msec): min=15, max=334, avg=165.15, stdev=40.61 lat (msec): min=15, max=334, avg=165.41, stdev=40.63 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 105], 10.00th=[ 118], 20.00th=[ 134], | 30.00th=[ 144], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 174], | 70.00th=[ 184], 80.00th=[ 194], 90.00th=[ 215], 95.00th=[ 234], | 99.00th=[ 284], 99.50th=[ 300], 99.90th=[ 309], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 208, max= 581, per=24.90%, avg=383.75, stdev=71.02, samples=52 iops : min= 52, max= 145, avg=95.52, stdev=17.76, samples=52 lat (msec) : 20=0.08%, 50=0.70%, 100=3.52%, 250=92.54%, 500=3.16% cpu : usr=0.18%, sys=1.14%, ctx=2832, 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=180066: Tue Sep 15 01:42:59 2026 write: IOPS=96, BW=387KiB/s (396kB/s)(10.0MiB/26447msec); 0 zone resets slat (usec): min=22, max=11226, avg=191.85, stdev=627.42 clat (msec): min=65, max=312, avg=164.98, stdev=39.61 lat (msec): min=65, max=312, avg=165.18, stdev=39.64 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 100], 10.00th=[ 118], 20.00th=[ 136], | 30.00th=[ 146], 40.00th=[ 157], 50.00th=[ 163], 60.00th=[ 174], | 70.00th=[ 182], 80.00th=[ 194], 90.00th=[ 213], 95.00th=[ 232], | 99.00th=[ 279], 99.50th=[ 300], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 240, max= 647, per=24.99%, avg=385.08, stdev=80.62, samples=52 iops : min= 60, max= 161, avg=95.87, stdev=20.16, samples=52 lat (msec) : 100=5.00%, 250=92.23%, 500=2.77% cpu : usr=0.20%, sys=0.82%, ctx=1944, 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=180067: Tue Sep 15 01:42:59 2026 write: IOPS=96, BW=385KiB/s (395kB/s)(10.0MiB/26564msec); 0 zone resets slat (usec): min=23, max=15819, avg=235.38, stdev=747.27 clat (msec): min=26, max=312, avg=165.14, stdev=40.13 lat (msec): min=26, max=312, avg=165.38, stdev=40.15 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 104], 10.00th=[ 121], 20.00th=[ 134], | 30.00th=[ 144], 40.00th=[ 155], 50.00th=[ 163], 60.00th=[ 174], | 70.00th=[ 184], 80.00th=[ 197], 90.00th=[ 215], 95.00th=[ 232], | 99.00th=[ 279], 99.50th=[ 292], 99.90th=[ 309], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 240, max= 541, per=24.74%, avg=381.19, stdev=70.38, samples=52 iops : min= 60, max= 135, avg=94.88, stdev=17.62, samples=52 lat (msec) : 50=0.08%, 100=4.38%, 250=92.50%, 500=3.05% cpu : usr=0.18%, sys=1.08%, ctx=2652, 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=1542KiB/s (1579kB/s), 385KiB/s-387KiB/s (395kB/s-396kB/s), io=40.0MiB (41.9MB), run=26447-26564msec 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=180080: Tue Sep 15 01:43:35 2026 read: IOPS=44, BW=179KiB/s (183kB/s)(5048KiB/28246msec) slat (usec): min=3154, max=41939, avg=11609.18, stdev=6017.75 clat (msec): min=79, max=305, avg=166.18, stdev=38.96 lat (msec): min=91, max=326, avg=177.80, stdev=40.82 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 110], 10.00th=[ 118], 20.00th=[ 132], | 30.00th=[ 142], 40.00th=[ 153], 50.00th=[ 163], 60.00th=[ 174], | 70.00th=[ 186], 80.00th=[ 199], 90.00th=[ 220], 95.00th=[ 234], | 99.00th=[ 271], 99.50th=[ 284], 99.90th=[ 300], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 84, max= 318, per=25.08%, avg=178.09, stdev=44.90, samples=56 iops : min= 21, max= 79, avg=44.12, stdev=11.27, samples=56 write: IOPS=45, BW=184KiB/s (188kB/s)(5192KiB/28246msec); 0 zone resets slat (usec): min=32, max=8971, avg=205.01, stdev=550.40 clat (msec): min=83, max=320, avg=172.20, stdev=38.73 lat (msec): min=83, max=320, avg=172.41, stdev=38.71 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 115], 10.00th=[ 125], 20.00th=[ 140], | 30.00th=[ 150], 40.00th=[ 159], 50.00th=[ 167], 60.00th=[ 180], | 70.00th=[ 192], 80.00th=[ 205], 90.00th=[ 224], 95.00th=[ 243], | 99.00th=[ 275], 99.50th=[ 292], 99.90th=[ 317], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 63, max= 272, per=24.82%, avg=183.39, stdev=44.78, samples=56 iops : min= 15, max= 68, avg=45.45, stdev=11.23, samples=56 lat (msec) : 100=1.33%, 250=95.62%, 500=3.05% cpu : usr=0.24%, sys=1.80%, ctx=4703, 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=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=180081: Tue Sep 15 01:43:35 2026 read: IOPS=44, BW=176KiB/s (180kB/s)(4976KiB/28253msec) slat (usec): min=2443, max=50074, avg=11990.64, stdev=6622.67 clat (msec): min=29, max=298, avg=167.69, stdev=40.74 lat (msec): min=37, max=319, avg=179.69, stdev=42.65 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 108], 10.00th=[ 118], 20.00th=[ 132], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 188], 80.00th=[ 203], 90.00th=[ 224], 95.00th=[ 243], | 99.00th=[ 271], 99.50th=[ 275], 99.90th=[ 296], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 83, max= 270, per=24.67%, avg=175.12, stdev=41.98, samples=56 iops : min= 20, max= 67, avg=43.39, stdev=10.54, samples=56 write: IOPS=46, BW=186KiB/s (191kB/s)(5264KiB/28253msec); 0 zone resets slat (usec): min=31, max=10597, avg=199.10, stdev=588.03 clat (msec): min=56, max=312, avg=171.57, stdev=38.43 lat (msec): min=56, max=312, avg=171.77, stdev=38.43 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 115], 10.00th=[ 126], 20.00th=[ 140], | 30.00th=[ 150], 40.00th=[ 159], 50.00th=[ 167], 60.00th=[ 178], | 70.00th=[ 190], 80.00th=[ 203], 90.00th=[ 222], 95.00th=[ 241], | 99.00th=[ 288], 99.50th=[ 292], 99.90th=[ 305], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 87, max= 296, per=25.18%, avg=186.05, stdev=48.19, samples=56 iops : min= 21, max= 74, avg=46.11, stdev=12.15, samples=56 lat (msec) : 50=0.04%, 100=1.64%, 250=94.92%, 500=3.40% cpu : usr=0.25%, sys=1.79%, ctx=4173, 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=180082: Tue Sep 15 01:43:35 2026 read: IOPS=44, BW=177KiB/s (181kB/s)(4984KiB/28127msec) slat (usec): min=3021, max=47668, avg=11909.56, stdev=6361.95 clat (msec): min=54, max=294, avg=165.36, stdev=39.16 lat (msec): min=69, max=305, avg=177.27, stdev=40.84 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 109], 10.00th=[ 117], 20.00th=[ 131], | 30.00th=[ 142], 40.00th=[ 153], 50.00th=[ 161], 60.00th=[ 171], | 70.00th=[ 186], 80.00th=[ 201], 90.00th=[ 220], 95.00th=[ 239], | 99.00th=[ 262], 99.50th=[ 271], 99.90th=[ 288], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 95, max= 286, per=24.86%, avg=176.49, stdev=44.18, samples=55 iops : min= 23, max= 71, avg=43.73, stdev=11.06, samples=55 write: IOPS=46, BW=187KiB/s (191kB/s)(5256KiB/28127msec); 0 zone resets slat (usec): min=34, max=11425, avg=203.55, stdev=553.16 clat (msec): min=46, max=330, avg=172.95, stdev=38.62 lat (msec): min=46, max=330, avg=173.16, stdev=38.62 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 118], 10.00th=[ 127], 20.00th=[ 140], | 30.00th=[ 150], 40.00th=[ 159], 50.00th=[ 169], 60.00th=[ 180], | 70.00th=[ 190], 80.00th=[ 207], 90.00th=[ 226], 95.00th=[ 241], | 99.00th=[ 284], 99.50th=[ 292], 99.90th=[ 326], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 111, max= 288, per=25.04%, avg=185.04, stdev=41.33, samples=55 iops : min= 27, max= 72, avg=45.85, stdev=10.40, samples=55 lat (msec) : 50=0.04%, 100=1.52%, 250=95.51%, 500=2.93% cpu : usr=0.28%, sys=1.74%, ctx=4982, 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=180083: Tue Sep 15 01:43:35 2026 read: IOPS=44, BW=180KiB/s (184kB/s)(5060KiB/28153msec) slat (usec): min=37, max=46887, avg=11671.15, stdev=6247.52 clat (msec): min=49, max=293, avg=166.72, stdev=39.71 lat (msec): min=85, max=312, avg=178.39, stdev=40.99 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 110], 10.00th=[ 120], 20.00th=[ 133], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 161], 60.00th=[ 171], | 70.00th=[ 186], 80.00th=[ 201], 90.00th=[ 222], 95.00th=[ 239], | 99.00th=[ 271], 99.50th=[ 279], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 86, max= 278, per=25.20%, avg=178.89, stdev=44.59, samples=55 iops : min= 21, max= 69, avg=44.31, stdev=11.20, samples=55 write: IOPS=45, BW=184KiB/s (188kB/s)(5180KiB/28153msec); 0 zone resets slat (usec): min=34, max=25981, avg=263.30, stdev=1093.36 clat (msec): min=27, max=325, avg=172.94, stdev=39.31 lat (msec): min=27, max=325, avg=173.20, stdev=39.33 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 116], 10.00th=[ 126], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 182], | 70.00th=[ 194], 80.00th=[ 205], 90.00th=[ 226], 95.00th=[ 241], | 99.00th=[ 275], 99.50th=[ 300], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 119, max= 302, per=24.66%, avg=182.27, stdev=38.83, samples=55 iops : min= 29, max= 75, avg=45.18, stdev= 9.74, samples=55 lat (msec) : 50=0.08%, 100=1.48%, 250=95.35%, 500=3.09% cpu : usr=0.28%, sys=1.73%, ctx=4877, 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=710KiB/s (727kB/s), 176KiB/s-180KiB/s (180kB/s-184kB/s), io=19.6MiB (20.5MB), run=28127-28253msec WRITE: bw=739KiB/s (757kB/s), 184KiB/s-187KiB/s (188kB/s-191kB/s), io=20.4MiB (21.4MB), run=28127-28253msec 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=180092: Tue Sep 15 01:43:42 2026 read: IOPS=2, BW=116MiB/s (122MB/s)(40.0MiB/344msec) slat (nsec): min=26757k, max=26757k, avg=26756650.00, stdev= 0.00 clat (nsec): min=294243k, max=294243k, avg=294242604.00, stdev= 0.00 lat (nsec): min=321005k, max=321005k, avg=321004983.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 296], 5.00th=[ 296], 10.00th=[ 296], 20.00th=[ 296], | 30.00th=[ 296], 40.00th=[ 296], 50.00th=[ 296], 60.00th=[ 296], | 70.00th=[ 296], 80.00th=[ 296], 90.00th=[ 296], 95.00th=[ 296], | 99.00th=[ 296], 99.50th=[ 296], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=4.66%, ctx=8, 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=116MiB/s (122MB/s), 116MiB/s-116MiB/s (122MB/s-122MB/s), io=40.0MiB (41.9MB), run=344-344msec 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