== sanity test 398c: run fio to test AIO ================= 01:55:07 (1788846907) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.547188 s, 76.7 MB/s osc.lustre-OST0000-osc-ffff989b01c84000.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=179099: Tue Sep 8 01:55:48 2026 write: IOPS=84, BW=337KiB/s (345kB/s)(10.0MiB/30383msec); 0 zone resets slat (usec): min=21, max=20905, avg=170.96, stdev=745.02 clat (msec): min=11, max=380, avg=188.57, stdev=53.46 lat (msec): min=11, max=381, avg=188.75, stdev=53.46 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 123], 10.00th=[ 132], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 165], 50.00th=[ 176], 60.00th=[ 194], | 70.00th=[ 211], 80.00th=[ 228], 90.00th=[ 259], 95.00th=[ 296], | 99.00th=[ 347], 99.50th=[ 351], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 380] bw ( KiB/s): min= 143, max= 512, per=24.90%, avg=335.62, stdev=78.43, samples=60 iops : min= 35, max= 128, avg=83.52, stdev=19.67, samples=60 lat (msec) : 20=0.04%, 50=0.12%, 100=0.39%, 250=87.58%, 500=11.88% cpu : usr=0.13%, sys=0.76%, ctx=1685, majf=0, minf=8 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=179100: Tue Sep 8 01:55:48 2026 write: IOPS=84, BW=337KiB/s (345kB/s)(10.0MiB/30361msec); 0 zone resets slat (usec): min=21, max=18390, avg=157.61, stdev=725.23 clat (msec): min=30, max=375, avg=188.66, stdev=52.61 lat (msec): min=30, max=376, avg=188.82, stdev=52.60 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 121], 10.00th=[ 130], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 167], 50.00th=[ 178], 60.00th=[ 194], | 70.00th=[ 211], 80.00th=[ 230], 90.00th=[ 259], 95.00th=[ 300], | 99.00th=[ 342], 99.50th=[ 351], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 151, max= 516, per=24.99%, avg=336.85, stdev=83.39, samples=60 iops : min= 37, max= 129, avg=83.85, stdev=20.93, samples=60 lat (msec) : 50=0.12%, 100=0.27%, 250=87.27%, 500=12.34% cpu : usr=0.19%, sys=0.77%, ctx=1720, majf=0, minf=8 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=179101: Tue Sep 8 01:55:48 2026 write: IOPS=84, BW=339KiB/s (347kB/s)(10.0MiB/30239msec); 0 zone resets slat (usec): min=22, max=15014, avg=166.62, stdev=698.79 clat (msec): min=43, max=383, avg=188.46, stdev=52.87 lat (msec): min=43, max=383, avg=188.63, stdev=52.88 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 121], 10.00th=[ 134], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 192], | 70.00th=[ 207], 80.00th=[ 230], 90.00th=[ 255], 95.00th=[ 296], | 99.00th=[ 355], 99.50th=[ 355], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 384] bw ( KiB/s): min= 125, max= 512, per=25.09%, avg=338.20, stdev=92.62, samples=59 iops : min= 31, max= 128, avg=84.20, stdev=23.23, samples=59 lat (msec) : 50=0.16%, 100=0.62%, 250=87.89%, 500=11.33% cpu : usr=0.16%, sys=0.71%, ctx=1359, 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=179102: Tue Sep 8 01:55:48 2026 write: IOPS=84, BW=340KiB/s (348kB/s)(10.0MiB/30137msec); 0 zone resets slat (usec): min=21, max=17559, avg=225.49, stdev=799.86 clat (msec): min=13, max=419, avg=187.95, stdev=55.54 lat (msec): min=15, max=419, avg=188.18, stdev=55.50 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 120], 10.00th=[ 129], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 165], 50.00th=[ 178], 60.00th=[ 192], | 70.00th=[ 207], 80.00th=[ 230], 90.00th=[ 259], 95.00th=[ 305], | 99.00th=[ 355], 99.50th=[ 380], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 166, max= 520, per=25.29%, avg=340.92, stdev=83.81, samples=59 iops : min= 41, max= 130, avg=84.90, stdev=21.00, samples=59 lat (msec) : 20=0.12%, 50=0.27%, 100=1.84%, 250=85.62%, 500=12.15% cpu : usr=0.16%, sys=0.91%, ctx=2772, 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 Run status group 0 (all jobs): WRITE: bw=1348KiB/s (1380kB/s), 337KiB/s-340KiB/s (345kB/s-348kB/s), io=40.0MiB (41.9MB), run=30137-30383msec 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=179116: Tue Sep 8 01:56:35 2026 read: IOPS=34, BW=137KiB/s (140kB/s)(5048KiB/36941msec) slat (usec): min=3009, max=71836, avg=16603.99, stdev=9494.77 clat (msec): min=17, max=441, avg=215.58, stdev=54.40 lat (msec): min=26, max=459, avg=232.19, stdev=56.59 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 142], 10.00th=[ 157], 20.00th=[ 171], | 30.00th=[ 184], 40.00th=[ 197], 50.00th=[ 209], 60.00th=[ 224], | 70.00th=[ 241], 80.00th=[ 257], 90.00th=[ 288], 95.00th=[ 317], | 99.00th=[ 363], 99.50th=[ 388], 99.90th=[ 430], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 63, max= 213, per=25.05%, avg=136.03, stdev=36.82, samples=73 iops : min= 15, max= 53, avg=33.51, stdev= 9.26, samples=73 write: IOPS=35, BW=141KiB/s (144kB/s)(5192KiB/36941msec); 0 zone resets slat (usec): min=34, max=6259, avg=235.13, stdev=566.25 clat (msec): min=55, max=418, avg=224.47, stdev=52.42 lat (msec): min=56, max=418, avg=224.71, stdev=52.42 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 150], 10.00th=[ 163], 20.00th=[ 182], | 30.00th=[ 194], 40.00th=[ 207], 50.00th=[ 220], 60.00th=[ 232], | 70.00th=[ 249], 80.00th=[ 266], 90.00th=[ 296], 95.00th=[ 326], | 99.00th=[ 368], 99.50th=[ 384], 99.90th=[ 393], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 44, max= 223, per=24.82%, avg=140.23, stdev=35.65, samples=73 iops : min= 11, max= 55, avg=34.56, stdev= 8.87, samples=73 lat (msec) : 20=0.04%, 50=0.12%, 100=0.27%, 250=73.44%, 500=26.13% cpu : usr=0.21%, sys=1.71%, ctx=3857, 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=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=179117: Tue Sep 8 01:56:35 2026 read: IOPS=33, BW=135KiB/s (138kB/s)(4976KiB/36885msec) slat (usec): min=3199, max=99259, avg=16620.88, stdev=9795.99 clat (msec): min=69, max=419, avg=216.26, stdev=53.15 lat (msec): min=88, max=453, avg=232.89, stdev=55.63 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 142], 10.00th=[ 157], 20.00th=[ 171], | 30.00th=[ 186], 40.00th=[ 199], 50.00th=[ 211], 60.00th=[ 224], | 70.00th=[ 239], 80.00th=[ 257], 90.00th=[ 292], 95.00th=[ 313], | 99.00th=[ 372], 99.50th=[ 384], 99.90th=[ 418], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 71, max= 224, per=24.68%, avg=134.01, stdev=32.10, samples=72 iops : min= 17, max= 56, avg=33.00, stdev= 8.02, samples=72 write: IOPS=35, BW=143KiB/s (146kB/s)(5264KiB/36885msec); 0 zone resets slat (usec): min=23, max=7896, avg=245.11, stdev=621.70 clat (msec): min=88, max=423, avg=225.52, stdev=52.51 lat (msec): min=89, max=423, avg=225.77, stdev=52.50 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 155], 10.00th=[ 167], 20.00th=[ 182], | 30.00th=[ 192], 40.00th=[ 207], 50.00th=[ 218], 60.00th=[ 232], | 70.00th=[ 247], 80.00th=[ 271], 90.00th=[ 296], 95.00th=[ 326], | 99.00th=[ 372], 99.50th=[ 388], 99.90th=[ 409], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 64, max= 239, per=25.18%, avg=142.25, stdev=37.22, samples=72 iops : min= 16, max= 59, avg=35.07, stdev= 9.34, samples=72 lat (msec) : 100=0.35%, 250=74.30%, 500=25.35% cpu : usr=0.27%, sys=1.81%, ctx=4229, 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=179118: Tue Sep 8 01:56:35 2026 read: IOPS=33, BW=135KiB/s (139kB/s)(4984KiB/36818msec) slat (usec): min=39, max=83554, avg=16630.48, stdev=9902.34 clat (msec): min=79, max=437, avg=217.86, stdev=55.41 lat (msec): min=93, max=487, avg=234.50, stdev=57.89 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 144], 10.00th=[ 157], 20.00th=[ 171], | 30.00th=[ 184], 40.00th=[ 197], 50.00th=[ 211], 60.00th=[ 224], | 70.00th=[ 239], 80.00th=[ 259], 90.00th=[ 296], 95.00th=[ 317], | 99.00th=[ 380], 99.50th=[ 401], 99.90th=[ 426], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 72, max= 224, per=24.84%, avg=134.89, stdev=36.78, samples=72 iops : min= 18, max= 56, avg=33.24, stdev= 9.21, samples=72 write: IOPS=35, BW=143KiB/s (146kB/s)(5256KiB/36818msec); 0 zone resets slat (usec): min=28, max=15274, avg=253.60, stdev=855.49 clat (msec): min=46, max=439, avg=224.73, stdev=53.37 lat (msec): min=47, max=440, avg=224.99, stdev=53.39 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 153], 10.00th=[ 165], 20.00th=[ 180], | 30.00th=[ 192], 40.00th=[ 207], 50.00th=[ 220], 60.00th=[ 232], | 70.00th=[ 247], 80.00th=[ 271], 90.00th=[ 296], 95.00th=[ 321], | 99.00th=[ 384], 99.50th=[ 401], 99.90th=[ 426], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 63, max= 232, per=25.12%, avg=141.93, stdev=37.45, samples=72 iops : min= 15, max= 58, avg=34.99, stdev= 9.41, samples=72 lat (msec) : 50=0.04%, 100=0.16%, 250=73.59%, 500=26.21% cpu : usr=0.23%, sys=1.58%, ctx=3648, 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=179119: Tue Sep 8 01:56:35 2026 read: IOPS=34, BW=137KiB/s (140kB/s)(5060KiB/36915msec) slat (usec): min=3567, max=69641, avg=16537.07, stdev=9781.97 clat (msec): min=53, max=458, avg=217.05, stdev=54.68 lat (msec): min=67, max=488, avg=233.59, stdev=57.36 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 146], 10.00th=[ 155], 20.00th=[ 171], | 30.00th=[ 186], 40.00th=[ 194], 50.00th=[ 209], 60.00th=[ 224], | 70.00th=[ 241], 80.00th=[ 259], 90.00th=[ 288], 95.00th=[ 321], | 99.00th=[ 388], 99.50th=[ 405], 99.90th=[ 439], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 55, max= 204, per=25.10%, avg=136.31, stdev=34.18, samples=72 iops : min= 13, max= 51, avg=33.58, stdev= 8.54, samples=72 write: IOPS=35, BW=140KiB/s (144kB/s)(5180KiB/36915msec); 0 zone resets slat (usec): min=27, max=25584, avg=326.16, stdev=1272.38 clat (msec): min=90, max=435, avg=224.59, stdev=53.00 lat (msec): min=90, max=435, avg=224.91, stdev=53.01 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 153], 10.00th=[ 163], 20.00th=[ 180], | 30.00th=[ 190], 40.00th=[ 205], 50.00th=[ 218], 60.00th=[ 232], | 70.00th=[ 247], 80.00th=[ 268], 90.00th=[ 296], 95.00th=[ 330], | 99.00th=[ 368], 99.50th=[ 384], 99.90th=[ 409], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 78, max= 232, per=24.67%, avg=139.39, stdev=35.30, samples=72 iops : min= 19, max= 58, avg=34.36, stdev= 8.86, samples=72 lat (msec) : 100=0.20%, 250=74.22%, 500=25.59% cpu : usr=0.31%, sys=1.69%, ctx=3941, 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=543KiB/s (556kB/s), 135KiB/s-137KiB/s (138kB/s-140kB/s), io=19.6MiB (20.5MB), run=36818-36941msec WRITE: bw=566KiB/s (579kB/s), 140KiB/s-143KiB/s (144kB/s-146kB/s), io=20.4MiB (21.4MB), run=36818-36941msec 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=179129: Tue Sep 8 01:56:45 2026 read: IOPS=2, BW=82.0MiB/s (87.0MB/s)(40.0MiB/482msec) slat (nsec): min=36463k, max=36463k, avg=36462908.00, stdev= 0.00 clat (nsec): min=425940k, max=425940k, avg=425939730.00, stdev= 0.00 lat (nsec): min=462407k, max=462407k, avg=462406798.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 426], 5.00th=[ 426], 10.00th=[ 426], 20.00th=[ 426], | 30.00th=[ 426], 40.00th=[ 426], 50.00th=[ 426], 60.00th=[ 426], | 70.00th=[ 426], 80.00th=[ 426], 90.00th=[ 426], 95.00th=[ 426], | 99.00th=[ 426], 99.50th=[ 426], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.08%, ctx=3, majf=0, minf=7 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=82.0MiB/s (87.0MB/s), 82.0MiB/s-82.0MiB/s (87.0MB/s-87.0MB/s), io=40.0MiB (41.9MB), run=482-482msec 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