== sanity test 398c: run fio to test AIO ================= 04:26:36 (1786695996) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.316839 s, 132 MB/s osc.lustre-OST0000-osc-ffffa068d95f0000.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=180997: Fri Aug 14 04:27:17 2026 write: IOPS=79, BW=318KiB/s (325kB/s)(10.0MiB/32217msec); 0 zone resets slat (usec): min=52, max=21127, avg=337.33, stdev=939.59 clat (msec): min=24, max=368, avg=199.94, stdev=48.06 lat (msec): min=25, max=368, avg=200.28, stdev=48.07 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 136], 10.00th=[ 146], 20.00th=[ 159], | 30.00th=[ 171], 40.00th=[ 184], 50.00th=[ 199], 60.00th=[ 213], | 70.00th=[ 222], 80.00th=[ 236], 90.00th=[ 266], 95.00th=[ 284], | 99.00th=[ 334], 99.50th=[ 359], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 159, max= 488, per=24.77%, avg=314.81, stdev=68.13, samples=63 iops : min= 39, max= 122, avg=78.30, stdev=17.03, samples=63 lat (msec) : 50=0.62%, 100=1.37%, 250=84.61%, 500=13.40% cpu : usr=0.16%, sys=1.06%, ctx=2416, 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=180998: Fri Aug 14 04:27:17 2026 write: IOPS=79, BW=320KiB/s (328kB/s)(10.0MiB/32004msec); 0 zone resets slat (usec): min=48, max=24867, avg=343.90, stdev=984.03 clat (msec): min=70, max=414, avg=199.45, stdev=48.36 lat (msec): min=71, max=415, avg=199.80, stdev=48.39 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 136], 10.00th=[ 144], 20.00th=[ 157], | 30.00th=[ 171], 40.00th=[ 184], 50.00th=[ 194], 60.00th=[ 207], | 70.00th=[ 220], 80.00th=[ 239], 90.00th=[ 266], 95.00th=[ 284], | 99.00th=[ 342], 99.50th=[ 355], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 414] bw ( KiB/s): min= 198, max= 468, per=25.08%, avg=318.75, stdev=62.22, samples=63 iops : min= 49, max= 117, avg=79.27, stdev=15.56, samples=63 lat (msec) : 100=0.90%, 250=83.91%, 500=15.20% cpu : usr=0.14%, sys=1.15%, ctx=2622, 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=180999: Fri Aug 14 04:27:17 2026 write: IOPS=79, BW=318KiB/s (326kB/s)(10.0MiB/32170msec); 0 zone resets slat (usec): min=45, max=22926, avg=399.15, stdev=1163.91 clat (msec): min=33, max=381, avg=199.73, stdev=47.82 lat (msec): min=33, max=381, avg=200.13, stdev=47.86 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 134], 10.00th=[ 142], 20.00th=[ 159], | 30.00th=[ 169], 40.00th=[ 184], 50.00th=[ 197], 60.00th=[ 209], | 70.00th=[ 222], 80.00th=[ 236], 90.00th=[ 266], 95.00th=[ 284], | 99.00th=[ 338], 99.50th=[ 359], 99.90th=[ 368], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 190, max= 456, per=24.97%, avg=317.40, stdev=58.49, samples=63 iops : min= 47, max= 114, avg=78.94, stdev=14.61, samples=63 lat (msec) : 50=0.08%, 100=0.82%, 250=84.61%, 500=14.49% cpu : usr=0.16%, sys=1.32%, ctx=3057, 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=181000: Fri Aug 14 04:27:17 2026 write: IOPS=79, BW=319KiB/s (326kB/s)(10.0MiB/32147msec); 0 zone resets slat (usec): min=51, max=15344, avg=300.15, stdev=818.26 clat (msec): min=26, max=411, avg=200.49, stdev=48.52 lat (msec): min=27, max=411, avg=200.79, stdev=48.53 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 132], 10.00th=[ 146], 20.00th=[ 159], | 30.00th=[ 169], 40.00th=[ 182], 50.00th=[ 194], 60.00th=[ 207], | 70.00th=[ 222], 80.00th=[ 243], 90.00th=[ 262], 95.00th=[ 296], | 99.00th=[ 334], 99.50th=[ 342], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 414] bw ( KiB/s): min= 136, max= 452, per=25.05%, avg=318.35, stdev=64.92, samples=63 iops : min= 34, max= 113, avg=79.17, stdev=16.22, samples=63 lat (msec) : 50=0.04%, 100=0.47%, 250=84.88%, 500=14.61% cpu : usr=0.14%, sys=1.14%, ctx=2476, 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=1271KiB/s (1302kB/s), 318KiB/s-320KiB/s (325kB/s-328kB/s), io=40.0MiB (41.9MB), run=32004-32217msec 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=181016: Fri Aug 14 04:28:02 2026 read: IOPS=35, BW=142KiB/s (145kB/s)(5048KiB/35667msec) slat (usec): min=3270, max=79688, avg=15165.22, stdev=8334.56 clat (msec): min=90, max=360, avg=209.66, stdev=43.92 lat (msec): min=103, max=384, avg=224.84, stdev=45.20 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 142], 10.00th=[ 157], 20.00th=[ 174], | 30.00th=[ 184], 40.00th=[ 197], 50.00th=[ 207], 60.00th=[ 220], | 70.00th=[ 232], 80.00th=[ 247], 90.00th=[ 268], 95.00th=[ 288], | 99.00th=[ 326], 99.50th=[ 338], 99.90th=[ 351], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 79, max= 214, per=25.02%, avg=140.60, stdev=32.32, samples=70 iops : min= 19, max= 53, avg=34.64, stdev= 8.15, samples=70 write: IOPS=36, BW=146KiB/s (149kB/s)(5192KiB/35667msec); 0 zone resets slat (usec): min=54, max=20629, avg=352.38, stdev=1173.00 clat (msec): min=66, max=354, avg=217.80, stdev=43.22 lat (msec): min=66, max=354, avg=218.16, stdev=43.18 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 153], 10.00th=[ 165], 20.00th=[ 180], | 30.00th=[ 192], 40.00th=[ 205], 50.00th=[ 215], 60.00th=[ 228], | 70.00th=[ 239], 80.00th=[ 255], 90.00th=[ 275], 95.00th=[ 296], | 99.00th=[ 330], 99.50th=[ 334], 99.90th=[ 342], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 65, max= 199, per=24.80%, avg=145.06, stdev=29.31, samples=70 iops : min= 16, max= 49, avg=35.76, stdev= 7.37, samples=70 lat (msec) : 100=0.12%, 250=79.69%, 500=20.20% cpu : usr=0.24%, sys=1.65%, ctx=4265, 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=181017: Fri Aug 14 04:28:02 2026 read: IOPS=34, BW=140KiB/s (143kB/s)(4976KiB/35591msec) slat (usec): min=3298, max=67630, avg=15104.72, stdev=8531.07 clat (msec): min=31, max=420, avg=209.00, stdev=44.23 lat (msec): min=60, max=438, avg=224.11, stdev=45.06 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 144], 10.00th=[ 157], 20.00th=[ 171], | 30.00th=[ 184], 40.00th=[ 194], 50.00th=[ 205], 60.00th=[ 220], | 70.00th=[ 230], 80.00th=[ 245], 90.00th=[ 268], 95.00th=[ 284], | 99.00th=[ 317], 99.50th=[ 363], 99.90th=[ 414], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 63, max= 206, per=24.83%, avg=139.53, stdev=32.30, samples=70 iops : min= 15, max= 51, avg=34.36, stdev= 8.14, samples=70 write: IOPS=36, BW=148KiB/s (151kB/s)(5264KiB/35591msec); 0 zone resets slat (usec): min=55, max=20863, avg=349.56, stdev=1133.67 clat (msec): min=49, max=420, avg=217.97, stdev=45.07 lat (msec): min=49, max=420, avg=218.32, stdev=45.06 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 153], 10.00th=[ 163], 20.00th=[ 182], | 30.00th=[ 192], 40.00th=[ 203], 50.00th=[ 215], 60.00th=[ 226], | 70.00th=[ 241], 80.00th=[ 255], 90.00th=[ 275], 95.00th=[ 296], | 99.00th=[ 338], 99.50th=[ 359], 99.90th=[ 388], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 88, max= 231, per=25.30%, avg=148.03, stdev=34.18, samples=70 iops : min= 22, max= 57, avg=36.50, stdev= 8.59, samples=70 lat (msec) : 50=0.08%, 100=0.27%, 250=79.34%, 500=20.31% cpu : usr=0.17%, sys=1.70%, ctx=4047, 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=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=181018: Fri Aug 14 04:28:02 2026 read: IOPS=35, BW=140KiB/s (143kB/s)(4984KiB/35591msec) slat (usec): min=3038, max=57192, avg=15527.67, stdev=8244.08 clat (msec): min=87, max=369, avg=209.28, stdev=44.39 lat (msec): min=96, max=403, avg=224.82, stdev=45.89 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 144], 10.00th=[ 157], 20.00th=[ 174], | 30.00th=[ 186], 40.00th=[ 194], 50.00th=[ 205], 60.00th=[ 213], | 70.00th=[ 230], 80.00th=[ 245], 90.00th=[ 275], 95.00th=[ 292], | 99.00th=[ 321], 99.50th=[ 334], 99.90th=[ 359], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 79, max= 199, per=24.92%, avg=140.04, stdev=29.67, samples=70 iops : min= 19, max= 49, avg=34.50, stdev= 7.47, samples=70 write: IOPS=36, BW=148KiB/s (151kB/s)(5256KiB/35591msec); 0 zone resets slat (usec): min=52, max=9837, avg=282.84, stdev=593.71 clat (msec): min=71, max=422, avg=217.10, stdev=43.73 lat (msec): min=72, max=422, avg=217.38, stdev=43.74 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 150], 10.00th=[ 161], 20.00th=[ 180], | 30.00th=[ 194], 40.00th=[ 205], 50.00th=[ 213], 60.00th=[ 224], | 70.00th=[ 239], 80.00th=[ 253], 90.00th=[ 275], 95.00th=[ 292], | 99.00th=[ 326], 99.50th=[ 347], 99.90th=[ 401], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 71, max= 222, per=25.16%, avg=147.17, stdev=35.65, samples=70 iops : min= 17, max= 55, avg=36.30, stdev= 8.93, samples=70 lat (msec) : 100=0.16%, 250=80.27%, 500=19.57% cpu : usr=0.18%, sys=1.67%, ctx=4296, 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=181019: Fri Aug 14 04:28:02 2026 read: IOPS=35, BW=142KiB/s (146kB/s)(5060KiB/35537msec) slat (usec): min=82, max=81416, avg=15682.42, stdev=8815.53 clat (msec): min=20, max=442, avg=209.34, stdev=46.19 lat (msec): min=20, max=464, avg=225.03, stdev=47.83 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 146], 10.00th=[ 157], 20.00th=[ 171], | 30.00th=[ 184], 40.00th=[ 194], 50.00th=[ 205], 60.00th=[ 218], | 70.00th=[ 230], 80.00th=[ 245], 90.00th=[ 271], 95.00th=[ 288], | 99.00th=[ 347], 99.50th=[ 359], 99.90th=[ 384], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 71, max= 216, per=25.28%, avg=142.06, stdev=30.24, samples=70 iops : min= 17, max= 54, avg=35.01, stdev= 7.61, samples=70 write: IOPS=36, BW=146KiB/s (149kB/s)(5180KiB/35537msec); 0 zone resets slat (usec): min=52, max=45640, avg=362.36, stdev=1541.03 clat (msec): min=31, max=500, avg=218.22, stdev=46.99 lat (msec): min=31, max=500, avg=218.58, stdev=47.00 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 155], 10.00th=[ 163], 20.00th=[ 178], | 30.00th=[ 190], 40.00th=[ 203], 50.00th=[ 218], 60.00th=[ 228], | 70.00th=[ 239], 80.00th=[ 255], 90.00th=[ 279], 95.00th=[ 305], | 99.00th=[ 338], 99.50th=[ 351], 99.90th=[ 464], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 79, max= 199, per=24.83%, avg=145.24, stdev=28.99, samples=70 iops : min= 19, max= 49, avg=35.81, stdev= 7.28, samples=70 lat (msec) : 50=0.23%, 100=0.31%, 250=79.38%, 500=20.04%, 750=0.04% cpu : usr=0.20%, sys=1.69%, ctx=4087, 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=563KiB/s (576kB/s), 140KiB/s-142KiB/s (143kB/s-146kB/s), io=19.6MiB (20.5MB), run=35537-35667msec WRITE: bw=586KiB/s (600kB/s), 146KiB/s-148KiB/s (149kB/s-151kB/s), io=20.4MiB (21.4MB), run=35537-35667msec 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=181028: Fri Aug 14 04:28:12 2026 read: IOPS=1, BW=67.8MiB/s (71.1MB/s)(40.0MiB/590msec) slat (nsec): min=47985k, max=47985k, avg=47985065.00, stdev= 0.00 clat (nsec): min=512676k, max=512676k, avg=512675863.00, stdev= 0.00 lat (nsec): min=560665k, max=560665k, avg=560665243.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 514], 5.00th=[ 514], 10.00th=[ 514], 20.00th=[ 514], | 30.00th=[ 514], 40.00th=[ 514], 50.00th=[ 514], 60.00th=[ 514], | 70.00th=[ 514], 80.00th=[ 514], 90.00th=[ 514], 95.00th=[ 514], | 99.00th=[ 514], 99.50th=[ 514], 99.90th=[ 514], 99.95th=[ 514], | 99.99th=[ 514] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.70%, ctx=13, 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=67.8MiB/s (71.1MB/s), 67.8MiB/s-67.8MiB/s (71.1MB/s-71.1MB/s), io=40.0MiB (41.9MB), run=590-590msec 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