== sanity test 398c: run fio to test AIO ================= 01:44:17 (1788846257) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.74298 s, 56.5 MB/s osc.lustre-OST0000-osc-ffff9c3e486fc000.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=145524: Tue Sep 8 01:47:25 2026 write: IOPS=14, BW=59.0KiB/s (60.5kB/s)(10.0MiB/173427msec); 0 zone resets slat (usec): min=24, max=30711, avg=335.57, stdev=1346.96 clat (msec): min=334, max=2433, avg=1082.11, stdev=303.50 lat (msec): min=334, max=2433, avg=1082.45, stdev=303.56 clat percentiles (msec): | 1.00th=[ 584], 5.00th=[ 693], 10.00th=[ 743], 20.00th=[ 827], | 30.00th=[ 902], 40.00th=[ 978], 50.00th=[ 1045], 60.00th=[ 1116], | 70.00th=[ 1200], 80.00th=[ 1301], 90.00th=[ 1452], 95.00th=[ 1653], | 99.00th=[ 2056], 99.50th=[ 2265], 99.90th=[ 2400], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 7, max= 135, per=25.23%, avg=59.55, stdev=27.88, samples=337 iops : min= 1, max= 33, avg=14.33, stdev= 7.01, samples=337 lat (msec) : 500=0.74%, 750=10.31%, 1000=32.85%, 2000=54.69%, >=2000=1.41% cpu : usr=0.06%, sys=0.28%, ctx=2039, 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=145525: Tue Sep 8 01:47:25 2026 write: IOPS=14, BW=59.1KiB/s (60.5kB/s)(10.0MiB/173301msec); 0 zone resets slat (usec): min=22, max=24792, avg=323.64, stdev=1339.24 clat (msec): min=153, max=2566, avg=1081.63, stdev=306.15 lat (msec): min=153, max=2566, avg=1081.96, stdev=306.21 clat percentiles (msec): | 1.00th=[ 510], 5.00th=[ 676], 10.00th=[ 743], 20.00th=[ 835], | 30.00th=[ 902], 40.00th=[ 969], 50.00th=[ 1045], 60.00th=[ 1116], | 70.00th=[ 1200], 80.00th=[ 1301], 90.00th=[ 1469], 95.00th=[ 1636], | 99.00th=[ 2072], 99.50th=[ 2198], 99.90th=[ 2467], 99.95th=[ 2567], | 99.99th=[ 2567] bw ( KiB/s): min= 7, max= 128, per=25.10%, avg=59.23, stdev=28.48, samples=339 iops : min= 1, max= 32, avg=14.25, stdev= 7.14, samples=339 lat (msec) : 250=0.04%, 500=0.82%, 750=9.92%, 1000=33.32%, 2000=54.57% lat (msec) : >=2000=1.33% cpu : usr=0.06%, sys=0.26%, ctx=1802, 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=145526: Tue Sep 8 01:47:25 2026 write: IOPS=14, BW=59.2KiB/s (60.6kB/s)(10.0MiB/173094msec); 0 zone resets slat (usec): min=24, max=16912, avg=362.56, stdev=1212.90 clat (msec): min=137, max=2468, avg=1080.89, stdev=312.25 lat (msec): min=138, max=2468, avg=1081.26, stdev=312.30 clat percentiles (msec): | 1.00th=[ 502], 5.00th=[ 667], 10.00th=[ 726], 20.00th=[ 827], | 30.00th=[ 911], 40.00th=[ 978], 50.00th=[ 1045], 60.00th=[ 1116], | 70.00th=[ 1183], 80.00th=[ 1284], 90.00th=[ 1469], 95.00th=[ 1670], | 99.00th=[ 2140], 99.50th=[ 2232], 99.90th=[ 2366], 99.95th=[ 2467], | 99.99th=[ 2467] bw ( KiB/s): min= 7, max= 127, per=24.99%, avg=58.98, stdev=26.68, samples=340 iops : min= 1, max= 31, avg=14.18, stdev= 6.70, samples=340 lat (msec) : 250=0.08%, 500=0.74%, 750=10.86%, 1000=31.29%, 2000=55.51% lat (msec) : >=2000=1.52% cpu : usr=0.05%, sys=0.31%, ctx=2073, 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=145527: Tue Sep 8 01:47:25 2026 write: IOPS=14, BW=59.1KiB/s (60.5kB/s)(10.0MiB/173292msec); 0 zone resets slat (usec): min=23, max=27799, avg=336.73, stdev=1334.69 clat (msec): min=399, max=2467, avg=1081.15, stdev=300.28 lat (msec): min=399, max=2467, avg=1081.49, stdev=300.32 clat percentiles (msec): | 1.00th=[ 584], 5.00th=[ 693], 10.00th=[ 743], 20.00th=[ 835], | 30.00th=[ 902], 40.00th=[ 969], 50.00th=[ 1045], 60.00th=[ 1116], | 70.00th=[ 1183], 80.00th=[ 1301], 90.00th=[ 1435], 95.00th=[ 1653], | 99.00th=[ 2022], 99.50th=[ 2198], 99.90th=[ 2366], 99.95th=[ 2433], | 99.99th=[ 2467] bw ( KiB/s): min= 7, max= 128, per=25.56%, avg=60.32, stdev=30.70, samples=333 iops : min= 1, max= 32, avg=14.52, stdev= 7.70, samples=333 lat (msec) : 500=0.62%, 750=10.59%, 1000=32.07%, 2000=55.59%, >=2000=1.13% cpu : usr=0.06%, sys=0.29%, ctx=1890, 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=236KiB/s (242kB/s), 59.0KiB/s-59.2KiB/s (60.5kB/s-60.6kB/s), io=40.0MiB (41.9MB), run=173094-173427msec 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=145562: Tue Sep 8 01:49:28 2026 read: IOPS=11, BW=44.8KiB/s (45.9kB/s)(5048KiB/112665msec) slat (msec): min=3, max=397, avg=16.85, stdev=14.26 clat (msec): min=18, max=1194, avg=439.24, stdev=120.68 lat (msec): min=28, max=1247, avg=456.10, stdev=121.63 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 288], 10.00th=[ 313], 20.00th=[ 351], | 30.00th=[ 376], 40.00th=[ 401], 50.00th=[ 422], 60.00th=[ 447], | 70.00th=[ 481], 80.00th=[ 523], 90.00th=[ 600], 95.00th=[ 651], | 99.00th=[ 810], 99.50th=[ 860], 99.90th=[ 986], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 7, max= 103, per=24.81%, avg=44.17, stdev=20.86, samples=223 iops : min= 1, max= 25, avg=10.46, stdev= 5.22, samples=223 write: IOPS=11, BW=46.1KiB/s (47.2kB/s)(5192KiB/112665msec); 0 zone resets slat (usec): min=27, max=13940, avg=344.06, stdev=985.99 clat (msec): min=249, max=1968, avg=941.98, stdev=253.95 lat (msec): min=249, max=1968, avg=942.33, stdev=254.00 clat percentiles (msec): | 1.00th=[ 498], 5.00th=[ 584], 10.00th=[ 659], 20.00th=[ 735], | 30.00th=[ 793], 40.00th=[ 860], 50.00th=[ 911], 60.00th=[ 978], | 70.00th=[ 1020], 80.00th=[ 1133], 90.00th=[ 1284], 95.00th=[ 1418], | 99.00th=[ 1770], 99.50th=[ 1854], 99.90th=[ 1938], 99.95th=[ 1972], | 99.99th=[ 1972] bw ( KiB/s): min= 7, max= 103, per=24.72%, avg=45.74, stdev=19.64, samples=221 iops : min= 1, max= 25, avg=10.86, stdev= 4.96, samples=221 lat (msec) : 20=0.08%, 50=0.20%, 100=0.08%, 250=0.90%, 500=36.60% lat (msec) : 750=22.54%, 1000=22.15%, 2000=17.46% cpu : usr=0.12%, sys=0.79%, ctx=4510, 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=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=145563: Tue Sep 8 01:49:28 2026 read: IOPS=11, BW=44.2KiB/s (45.2kB/s)(4976KiB/112666msec) slat (usec): min=49, max=63096, avg=16185.58, stdev=8927.38 clat (msec): min=7, max=1026, avg=441.52, stdev=123.80 lat (msec): min=9, max=1043, avg=457.71, stdev=125.46 clat percentiles (msec): | 1.00th=[ 228], 5.00th=[ 288], 10.00th=[ 317], 20.00th=[ 347], | 30.00th=[ 372], 40.00th=[ 397], 50.00th=[ 418], 60.00th=[ 447], | 70.00th=[ 485], 80.00th=[ 531], 90.00th=[ 609], 95.00th=[ 676], | 99.00th=[ 835], 99.50th=[ 852], 99.90th=[ 978], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 7, max= 112, per=24.70%, avg=43.97, stdev=21.29, samples=221 iops : min= 1, max= 28, avg=10.41, stdev= 5.37, samples=221 write: IOPS=11, BW=46.7KiB/s (47.8kB/s)(5264KiB/112666msec); 0 zone resets slat (usec): min=30, max=12911, avg=319.22, stdev=853.00 clat (msec): min=135, max=2170, avg=936.01, stdev=262.57 lat (msec): min=136, max=2170, avg=936.33, stdev=262.55 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 567], 10.00th=[ 634], 20.00th=[ 726], | 30.00th=[ 802], 40.00th=[ 860], 50.00th=[ 911], 60.00th=[ 978], | 70.00th=[ 1036], 80.00th=[ 1116], 90.00th=[ 1267], 95.00th=[ 1401], | 99.00th=[ 1720], 99.50th=[ 1905], 99.90th=[ 2106], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 7, max= 107, per=24.90%, avg=46.06, stdev=20.68, samples=222 iops : min= 1, max= 26, avg=10.94, stdev= 5.15, samples=222 lat (msec) : 10=0.04%, 20=0.08%, 100=0.23%, 250=0.98%, 500=35.74% lat (msec) : 750=22.30%, 1000=21.95%, 2000=18.59%, >=2000=0.08% cpu : usr=0.12%, sys=0.69%, ctx=4438, majf=0, minf=15 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=145564: Tue Sep 8 01:49:28 2026 read: IOPS=11, BW=44.2KiB/s (45.3kB/s)(4984KiB/112666msec) slat (usec): min=2786, max=58722, avg=16211.36, stdev=8886.00 clat (msec): min=13, max=863, avg=432.67, stdev=114.29 lat (msec): min=17, max=889, avg=448.88, stdev=115.96 clat percentiles (msec): | 1.00th=[ 194], 5.00th=[ 279], 10.00th=[ 313], 20.00th=[ 351], | 30.00th=[ 376], 40.00th=[ 393], 50.00th=[ 418], 60.00th=[ 439], | 70.00th=[ 468], 80.00th=[ 510], 90.00th=[ 584], 95.00th=[ 642], | 99.00th=[ 793], 99.50th=[ 844], 99.90th=[ 860], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 7, max= 104, per=24.72%, avg=44.00, stdev=20.82, samples=222 iops : min= 1, max= 26, avg=10.42, stdev= 5.22, samples=222 write: IOPS=11, BW=46.7KiB/s (47.8kB/s)(5256KiB/112666msec); 0 zone resets slat (usec): min=30, max=21812, avg=350.78, stdev=1119.08 clat (msec): min=237, max=2036, avg=943.16, stdev=257.87 lat (msec): min=238, max=2037, avg=943.52, stdev=257.89 clat percentiles (msec): | 1.00th=[ 477], 5.00th=[ 592], 10.00th=[ 659], 20.00th=[ 735], | 30.00th=[ 802], 40.00th=[ 852], 50.00th=[ 911], 60.00th=[ 969], | 70.00th=[ 1028], 80.00th=[ 1116], 90.00th=[ 1267], 95.00th=[ 1452], | 99.00th=[ 1737], 99.50th=[ 1854], 99.90th=[ 1938], 99.95th=[ 2039], | 99.99th=[ 2039] bw ( KiB/s): min= 7, max= 112, per=24.73%, avg=45.75, stdev=19.09, samples=223 iops : min= 1, max= 28, avg=10.86, stdev= 4.79, samples=223 lat (msec) : 20=0.04%, 50=0.08%, 100=0.20%, 250=0.90%, 500=37.54% lat (msec) : 750=20.59%, 1000=22.89%, 2000=17.73%, >=2000=0.04% cpu : usr=0.15%, sys=0.75%, ctx=4744, 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=145565: Tue Sep 8 01:49:28 2026 read: IOPS=11, BW=44.9KiB/s (45.0kB/s)(5060KiB/112724msec) slat (usec): min=3500, max=66310, avg=16062.70, stdev=8730.39 clat (msec): min=12, max=981, avg=435.14, stdev=120.53 lat (msec): min=18, max=986, avg=451.21, stdev=122.31 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 279], 10.00th=[ 305], 20.00th=[ 347], | 30.00th=[ 376], 40.00th=[ 397], 50.00th=[ 422], 60.00th=[ 439], | 70.00th=[ 468], 80.00th=[ 518], 90.00th=[ 600], 95.00th=[ 667], | 99.00th=[ 793], 99.50th=[ 844], 99.90th=[ 885], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 7, max= 136, per=25.19%, avg=44.84, stdev=20.62, samples=220 iops : min= 1, max= 34, avg=10.63, stdev= 5.18, samples=220 write: IOPS=11, BW=45.0KiB/s (47.1kB/s)(5180KiB/112724msec); 0 zone resets slat (usec): min=25, max=19555, avg=361.26, stdev=1172.20 clat (msec): min=216, max=2028, avg=949.05, stdev=258.30 lat (msec): min=216, max=2028, avg=949.41, stdev=258.33 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 575], 10.00th=[ 659], 20.00th=[ 743], | 30.00th=[ 818], 40.00th=[ 869], 50.00th=[ 927], 60.00th=[ 978], | 70.00th=[ 1045], 80.00th=[ 1133], 90.00th=[ 1267], 95.00th=[ 1418], | 99.00th=[ 1754], 99.50th=[ 1854], 99.90th=[ 1921], 99.95th=[ 2022], | 99.99th=[ 2022] bw ( KiB/s): min= 7, max= 111, per=24.59%, avg=45.49, stdev=17.91, samples=221 iops : min= 1, max= 27, avg=10.79, stdev= 4.49, samples=221 lat (msec) : 20=0.12%, 50=0.08%, 100=0.23%, 250=1.05%, 500=37.42% lat (msec) : 750=20.20%, 1000=22.89%, 2000=17.97%, >=2000=0.04% cpu : usr=0.12%, sys=0.74%, ctx=4609, majf=0, minf=16 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=178KiB/s (182kB/s), 44.2KiB/s-44.9KiB/s (45.2kB/s-45.0kB/s), io=19.6MiB (20.5MB), run=112665-112724msec WRITE: bw=185KiB/s (190kB/s), 45.0KiB/s-46.7KiB/s (47.1kB/s-47.8kB/s), io=20.4MiB (21.4MB), run=112665-112724msec 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=145588: Tue Sep 8 01:49:39 2026 read: IOPS=1, BW=70.2MiB/s (73.6MB/s)(40.0MiB/570msec) slat (nsec): min=54748k, max=54748k, avg=54747662.00, stdev= 0.00 clat (nsec): min=493667k, max=493667k, avg=493666637.00, stdev= 0.00 lat (nsec): min=548566k, max=548566k, avg=548565555.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 493], 5.00th=[ 493], 10.00th=[ 493], 20.00th=[ 493], | 30.00th=[ 493], 40.00th=[ 493], 50.00th=[ 493], 60.00th=[ 493], | 70.00th=[ 493], 80.00th=[ 493], 90.00th=[ 493], 95.00th=[ 493], | 99.00th=[ 493], 99.50th=[ 493], 99.90th=[ 493], 99.95th=[ 493], | 99.99th=[ 493] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=1.76%, ctx=44, 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=70.2MiB/s (73.6MB/s), 70.2MiB/s-70.2MiB/s (73.6MB/s-73.6MB/s), io=40.0MiB (41.9MB), run=570-570msec 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