== sanity test 398c: run fio to test AIO ================= 04:15:26 (1786954526) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.531624 s, 78.9 MB/s osc.lustre-OST0000-osc-ffff8c8685ea8000.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=180224: Mon Aug 17 04:16:12 2026 write: IOPS=73, BW=292KiB/s (299kB/s)(10.0MiB/35040msec); 0 zone resets slat (usec): min=52, max=17189, avg=403.89, stdev=1126.23 clat (msec): min=14, max=427, avg=217.53, stdev=58.72 lat (msec): min=14, max=427, avg=217.94, stdev=58.73 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 136], 10.00th=[ 150], 20.00th=[ 169], | 30.00th=[ 184], 40.00th=[ 199], 50.00th=[ 211], 60.00th=[ 228], | 70.00th=[ 245], 80.00th=[ 259], 90.00th=[ 292], 95.00th=[ 334], | 99.00th=[ 393], 99.50th=[ 405], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 124, max= 440, per=24.94%, avg=291.35, stdev=74.55, samples=69 iops : min= 31, max= 110, avg=72.39, stdev=18.70, samples=69 lat (msec) : 20=0.04%, 50=0.04%, 100=0.66%, 250=72.46%, 500=26.80% cpu : usr=0.14%, sys=1.12%, ctx=2267, 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=180225: Mon Aug 17 04:16:12 2026 write: IOPS=73, BW=293KiB/s (300kB/s)(10.0MiB/34996msec); 0 zone resets slat (usec): min=49, max=14676, avg=415.71, stdev=1146.10 clat (msec): min=25, max=433, avg=217.39, stdev=58.77 lat (msec): min=25, max=433, avg=217.81, stdev=58.79 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 136], 10.00th=[ 153], 20.00th=[ 169], | 30.00th=[ 182], 40.00th=[ 197], 50.00th=[ 209], 60.00th=[ 224], | 70.00th=[ 245], 80.00th=[ 259], 90.00th=[ 296], 95.00th=[ 334], | 99.00th=[ 384], 99.50th=[ 401], 99.90th=[ 430], 99.95th=[ 430], | 99.99th=[ 435] bw ( KiB/s): min= 124, max= 439, per=25.03%, avg=292.38, stdev=70.31, samples=69 iops : min= 31, max= 109, avg=72.64, stdev=17.64, samples=69 lat (msec) : 50=0.23%, 100=0.70%, 250=72.27%, 500=26.80% cpu : usr=0.13%, sys=1.01%, ctx=2678, 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=180226: Mon Aug 17 04:16:12 2026 write: IOPS=73, BW=292KiB/s (299kB/s)(10.0MiB/35043msec); 0 zone resets slat (usec): min=53, max=20486, avg=391.79, stdev=1074.09 clat (msec): min=30, max=424, avg=217.30, stdev=57.29 lat (msec): min=30, max=424, avg=217.71, stdev=57.25 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 134], 10.00th=[ 150], 20.00th=[ 169], | 30.00th=[ 182], 40.00th=[ 201], 50.00th=[ 211], 60.00th=[ 228], | 70.00th=[ 241], 80.00th=[ 259], 90.00th=[ 292], 95.00th=[ 321], | 99.00th=[ 388], 99.50th=[ 405], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 151, max= 440, per=24.83%, avg=290.00, stdev=61.90, samples=69 iops : min= 37, max= 110, avg=72.07, stdev=15.56, samples=69 lat (msec) : 50=0.12%, 100=0.51%, 250=74.61%, 500=24.77% cpu : usr=0.14%, sys=1.08%, ctx=2680, 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=180227: Mon Aug 17 04:16:12 2026 write: IOPS=73, BW=294KiB/s (301kB/s)(10.0MiB/34830msec); 0 zone resets slat (usec): min=49, max=27378, avg=424.83, stdev=1250.06 clat (msec): min=23, max=426, avg=216.97, stdev=59.07 lat (msec): min=23, max=427, avg=217.40, stdev=59.03 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 131], 10.00th=[ 148], 20.00th=[ 167], | 30.00th=[ 188], 40.00th=[ 199], 50.00th=[ 211], 60.00th=[ 226], | 70.00th=[ 243], 80.00th=[ 259], 90.00th=[ 296], 95.00th=[ 330], | 99.00th=[ 388], 99.50th=[ 401], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 151, max= 495, per=25.05%, avg=292.58, stdev=69.66, samples=69 iops : min= 37, max= 123, avg=72.71, stdev=17.47, samples=69 lat (msec) : 50=0.08%, 100=1.37%, 250=73.95%, 500=24.61% cpu : usr=0.19%, sys=1.27%, ctx=2798, 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=1169KiB/s (1197kB/s), 292KiB/s-294KiB/s (299kB/s-301kB/s), io=40.0MiB (41.9MB), run=34830-35043msec 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=180242: Mon Aug 17 04:17:01 2026 read: IOPS=32, BW=131KiB/s (134kB/s)(5048KiB/38588msec) slat (usec): min=3371, max=74467, avg=16956.06, stdev=9129.56 clat (msec): min=17, max=414, avg=228.35, stdev=52.75 lat (msec): min=21, max=427, avg=245.32, stdev=53.71 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 150], 10.00th=[ 163], 20.00th=[ 184], | 30.00th=[ 199], 40.00th=[ 209], 50.00th=[ 224], 60.00th=[ 236], | 70.00th=[ 255], 80.00th=[ 271], 90.00th=[ 296], 95.00th=[ 321], | 99.00th=[ 368], 99.50th=[ 380], 99.90th=[ 405], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 55, max= 190, per=24.98%, avg=129.91, stdev=29.10, samples=76 iops : min= 13, max= 47, avg=31.97, stdev= 7.31, samples=76 write: IOPS=33, BW=135KiB/s (138kB/s)(5192KiB/38588msec); 0 zone resets slat (usec): min=42, max=21964, avg=402.49, stdev=1083.45 clat (msec): min=82, max=393, avg=233.26, stdev=48.37 lat (msec): min=82, max=394, avg=233.66, stdev=48.32 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 163], 10.00th=[ 176], 20.00th=[ 194], | 30.00th=[ 207], 40.00th=[ 218], 50.00th=[ 228], 60.00th=[ 241], | 70.00th=[ 255], 80.00th=[ 271], 90.00th=[ 300], 95.00th=[ 326], | 99.00th=[ 359], 99.50th=[ 372], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 50, max= 208, per=24.76%, avg=133.96, stdev=32.75, samples=76 iops : min= 12, max= 52, avg=33.01, stdev= 8.24, samples=76 lat (msec) : 20=0.04%, 50=0.04%, 100=0.12%, 250=67.38%, 500=32.42% cpu : usr=0.26%, sys=1.83%, ctx=4327, 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=180243: Mon Aug 17 04:17:01 2026 read: IOPS=32, BW=130KiB/s (133kB/s)(4976KiB/38404msec) slat (usec): min=3047, max=82881, avg=17260.23, stdev=9244.54 clat (msec): min=69, max=421, avg=228.28, stdev=51.79 lat (msec): min=88, max=454, avg=245.55, stdev=53.20 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 150], 10.00th=[ 165], 20.00th=[ 184], | 30.00th=[ 199], 40.00th=[ 211], 50.00th=[ 224], 60.00th=[ 239], | 70.00th=[ 253], 80.00th=[ 271], 90.00th=[ 300], 95.00th=[ 321], | 99.00th=[ 363], 99.50th=[ 372], 99.90th=[ 405], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 71, max= 191, per=24.69%, avg=128.41, stdev=28.98, samples=76 iops : min= 17, max= 47, avg=31.59, stdev= 7.26, samples=76 write: IOPS=34, BW=137KiB/s (140kB/s)(5264KiB/38404msec); 0 zone resets slat (usec): min=55, max=18088, avg=410.61, stdev=1212.80 clat (msec): min=100, max=404, avg=232.69, stdev=46.54 lat (msec): min=100, max=404, avg=233.10, stdev=46.53 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 163], 10.00th=[ 176], 20.00th=[ 194], | 30.00th=[ 207], 40.00th=[ 220], 50.00th=[ 230], 60.00th=[ 241], | 70.00th=[ 253], 80.00th=[ 268], 90.00th=[ 292], 95.00th=[ 313], | 99.00th=[ 359], 99.50th=[ 372], 99.90th=[ 393], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 63, max= 214, per=25.21%, avg=136.41, stdev=33.88, samples=76 iops : min= 15, max= 53, avg=33.59, stdev= 8.55, samples=76 lat (msec) : 100=0.12%, 250=67.70%, 500=32.19% cpu : usr=0.30%, sys=1.84%, ctx=4338, 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=180244: Mon Aug 17 04:17:01 2026 read: IOPS=32, BW=129KiB/s (132kB/s)(4984KiB/38572msec) slat (usec): min=2857, max=71263, avg=17167.94, stdev=9172.43 clat (msec): min=88, max=430, avg=226.72, stdev=49.71 lat (msec): min=111, max=465, avg=243.90, stdev=51.51 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 153], 10.00th=[ 167], 20.00th=[ 186], | 30.00th=[ 201], 40.00th=[ 211], 50.00th=[ 224], 60.00th=[ 234], | 70.00th=[ 249], 80.00th=[ 268], 90.00th=[ 292], 95.00th=[ 317], | 99.00th=[ 359], 99.50th=[ 372], 99.90th=[ 422], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 39, max= 214, per=24.75%, avg=128.71, stdev=33.51, samples=76 iops : min= 9, max= 53, avg=31.66, stdev= 8.40, samples=76 write: IOPS=34, BW=136KiB/s (140kB/s)(5256KiB/38572msec); 0 zone resets slat (usec): min=57, max=27051, avg=371.94, stdev=1143.38 clat (msec): min=55, max=409, avg=235.46, stdev=48.94 lat (msec): min=56, max=409, avg=235.83, stdev=48.93 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 161], 10.00th=[ 180], 20.00th=[ 194], | 30.00th=[ 207], 40.00th=[ 220], 50.00th=[ 230], 60.00th=[ 245], | 70.00th=[ 257], 80.00th=[ 279], 90.00th=[ 305], 95.00th=[ 326], | 99.00th=[ 355], 99.50th=[ 363], 99.90th=[ 397], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 71, max= 203, per=24.99%, avg=135.21, stdev=31.72, samples=76 iops : min= 17, max= 50, avg=33.29, stdev= 7.99, samples=76 lat (msec) : 100=0.12%, 250=67.93%, 500=31.95% cpu : usr=0.26%, sys=2.00%, ctx=4566, 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=180245: Mon Aug 17 04:17:01 2026 read: IOPS=33, BW=133KiB/s (136kB/s)(5060KiB/38121msec) slat (usec): min=56, max=65631, avg=16638.12, stdev=8948.95 clat (msec): min=20, max=469, avg=225.82, stdev=54.08 lat (msec): min=20, max=481, avg=242.46, stdev=55.50 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 150], 10.00th=[ 165], 20.00th=[ 182], | 30.00th=[ 197], 40.00th=[ 211], 50.00th=[ 222], 60.00th=[ 232], | 70.00th=[ 249], 80.00th=[ 266], 90.00th=[ 296], 95.00th=[ 330], | 99.00th=[ 372], 99.50th=[ 393], 99.90th=[ 447], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 71, max= 182, per=25.37%, avg=131.93, stdev=26.81, samples=75 iops : min= 17, max= 45, avg=32.49, stdev= 6.72, samples=75 write: IOPS=33, BW=136KiB/s (139kB/s)(5180KiB/38121msec); 0 zone resets slat (usec): min=42, max=19575, avg=344.42, stdev=944.36 clat (msec): min=86, max=405, avg=233.24, stdev=48.62 lat (msec): min=86, max=405, avg=233.59, stdev=48.59 clat percentiles (msec): | 1.00th=[ 131], 5.00th=[ 161], 10.00th=[ 178], 20.00th=[ 194], | 30.00th=[ 207], 40.00th=[ 220], 50.00th=[ 230], 60.00th=[ 241], | 70.00th=[ 253], 80.00th=[ 271], 90.00th=[ 296], 95.00th=[ 321], | 99.00th=[ 368], 99.50th=[ 388], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 54, max= 223, per=24.92%, avg=134.81, stdev=32.87, samples=75 iops : min= 13, max= 55, avg=33.23, stdev= 8.29, samples=75 lat (msec) : 50=0.27%, 100=0.23%, 250=68.91%, 500=30.59% cpu : usr=0.22%, sys=1.79%, ctx=4339, 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=520KiB/s (533kB/s), 129KiB/s-133KiB/s (132kB/s-136kB/s), io=19.6MiB (20.5MB), run=38121-38588msec WRITE: bw=541KiB/s (554kB/s), 135KiB/s-137KiB/s (138kB/s-140kB/s), io=20.4MiB (21.4MB), run=38121-38588msec 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=180257: Mon Aug 17 04:17:12 2026 read: IOPS=1, BW=50.8MiB/s (53.2MB/s)(40.0MiB/788msec) slat (nsec): min=76307k, max=76307k, avg=76306833.00, stdev= 0.00 clat (nsec): min=688325k, max=688325k, avg=688324987.00, stdev= 0.00 lat (nsec): min=764636k, max=764636k, avg=764636346.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 693], 5.00th=[ 693], 10.00th=[ 693], 20.00th=[ 693], | 30.00th=[ 693], 40.00th=[ 693], 50.00th=[ 693], 60.00th=[ 693], | 70.00th=[ 693], 80.00th=[ 693], 90.00th=[ 693], 95.00th=[ 693], | 99.00th=[ 693], 99.50th=[ 693], 99.90th=[ 693], 99.95th=[ 693], | 99.99th=[ 693] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=0.25%, ctx=7, 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=50.8MiB/s (53.2MB/s), 50.8MiB/s-50.8MiB/s (53.2MB/s-53.2MB/s), io=40.0MiB (41.9MB), run=788-788msec 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