== sanity test 398c: run fio to test AIO ================= 15:07:44 (1788289664) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.575413 s, 72.9 MB/s osc.lustre-OST0000-osc-ffff8bc066494800.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=146128: Tue Sep 1 15:11:15 2026 write: IOPS=12, BW=51.5KiB/s (52.8kB/s)(10.0MiB/198724msec); 0 zone resets slat (usec): min=24, max=19617, avg=200.94, stdev=860.05 clat (msec): min=473, max=2275, avg=1240.51, stdev=317.86 lat (msec): min=473, max=2275, avg=1240.71, stdev=317.85 clat percentiles (msec): | 1.00th=[ 575], 5.00th=[ 776], 10.00th=[ 869], 20.00th=[ 961], | 30.00th=[ 1062], 40.00th=[ 1150], 50.00th=[ 1217], 60.00th=[ 1284], | 70.00th=[ 1368], 80.00th=[ 1469], 90.00th=[ 1687], 95.00th=[ 1838], | 99.00th=[ 2072], 99.50th=[ 2165], 99.90th=[ 2198], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 7, max= 128, per=26.62%, avg=54.84, stdev=32.06, samples=367 iops : min= 1, max= 32, avg=13.24, stdev= 8.03, samples=367 lat (msec) : 500=0.62%, 750=3.32%, 1000=19.34%, 2000=74.80%, >=2000=1.91% cpu : usr=0.03%, sys=0.16%, ctx=1510, 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=146129: Tue Sep 1 15:11:15 2026 write: IOPS=12, BW=51.7KiB/s (52.9kB/s)(10.0MiB/198255msec); 0 zone resets slat (usec): min=26, max=24169, avg=228.11, stdev=1084.82 clat (msec): min=267, max=2276, avg=1237.19, stdev=323.72 lat (msec): min=267, max=2276, avg=1237.42, stdev=323.70 clat percentiles (msec): | 1.00th=[ 506], 5.00th=[ 776], 10.00th=[ 860], 20.00th=[ 961], | 30.00th=[ 1045], 40.00th=[ 1150], 50.00th=[ 1217], 60.00th=[ 1284], | 70.00th=[ 1385], 80.00th=[ 1502], 90.00th=[ 1670], 95.00th=[ 1838], | 99.00th=[ 2039], 99.50th=[ 2089], 99.90th=[ 2265], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 7, max= 128, per=25.76%, avg=53.07, stdev=28.49, samples=379 iops : min= 1, max= 32, avg=12.80, stdev= 7.18, samples=379 lat (msec) : 500=0.82%, 750=3.48%, 1000=20.78%, 2000=73.48%, >=2000=1.45% cpu : usr=0.03%, sys=0.17%, ctx=1582, 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=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=146130: Tue Sep 1 15:11:15 2026 write: IOPS=12, BW=51.7KiB/s (52.0kB/s)(10.0MiB/197963msec); 0 zone resets slat (usec): min=21, max=20742, avg=218.04, stdev=904.01 clat (msec): min=286, max=2233, avg=1236.59, stdev=323.67 lat (msec): min=286, max=2233, avg=1236.81, stdev=323.67 clat percentiles (msec): | 1.00th=[ 498], 5.00th=[ 760], 10.00th=[ 852], 20.00th=[ 961], | 30.00th=[ 1053], 40.00th=[ 1133], 50.00th=[ 1217], 60.00th=[ 1284], | 70.00th=[ 1385], 80.00th=[ 1502], 90.00th=[ 1670], 95.00th=[ 1821], | 99.00th=[ 2106], 99.50th=[ 2165], 99.90th=[ 2232], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 7, max= 135, per=24.96%, avg=51.43, stdev=24.40, samples=391 iops : min= 1, max= 33, avg=12.39, stdev= 6.13, samples=391 lat (msec) : 500=1.05%, 750=3.55%, 1000=19.73%, 2000=73.44%, >=2000=2.23% cpu : usr=0.04%, sys=0.19%, ctx=1740, 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=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=146131: Tue Sep 1 15:11:15 2026 write: IOPS=12, BW=51.6KiB/s (52.8kB/s)(10.0MiB/198615msec); 0 zone resets slat (usec): min=26, max=18332, avg=214.07, stdev=862.87 clat (msec): min=331, max=2237, avg=1239.19, stdev=324.05 lat (msec): min=331, max=2237, avg=1239.41, stdev=324.05 clat percentiles (msec): | 1.00th=[ 477], 5.00th=[ 751], 10.00th=[ 844], 20.00th=[ 978], | 30.00th=[ 1053], 40.00th=[ 1133], 50.00th=[ 1217], 60.00th=[ 1301], | 70.00th=[ 1385], 80.00th=[ 1485], 90.00th=[ 1653], 95.00th=[ 1871], | 99.00th=[ 2056], 99.50th=[ 2106], 99.90th=[ 2232], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 7, max= 128, per=26.26%, avg=54.09, stdev=30.18, samples=372 iops : min= 1, max= 32, avg=13.06, stdev= 7.57, samples=372 lat (msec) : 500=1.25%, 750=3.67%, 1000=18.09%, 2000=75.20%, >=2000=1.80% cpu : usr=0.03%, sys=0.17%, ctx=1581, 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=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=206KiB/s (211kB/s), 51.5KiB/s-51.7KiB/s (52.8kB/s-52.0kB/s), io=40.0MiB (41.9MB), run=197963-198724msec 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=146168: Tue Sep 1 15:13:33 2026 read: IOPS=9, BW=38.8KiB/s (39.8kB/s)(5048KiB/130005msec) slat (usec): min=3301, max=85193, avg=16507.21, stdev=9790.10 clat (msec): min=32, max=1107, avg=506.14, stdev=157.38 lat (msec): min=43, max=1146, avg=522.66, stdev=159.68 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 305], 10.00th=[ 338], 20.00th=[ 380], | 30.00th=[ 414], 40.00th=[ 447], 50.00th=[ 485], 60.00th=[ 523], | 70.00th=[ 567], 80.00th=[ 625], 90.00th=[ 718], 95.00th=[ 802], | 99.00th=[ 969], 99.50th=[ 995], 99.90th=[ 1099], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7, max= 104, per=25.34%, avg=39.03, stdev=20.32, samples=253 iops : min= 1, max= 26, avg= 9.28, stdev= 5.14, samples=253 write: IOPS=9, BW=39.9KiB/s (40.9kB/s)(5192KiB/130005msec); 0 zone resets slat (usec): min=33, max=31806, avg=269.05, stdev=1397.31 clat (msec): min=196, max=2251, avg=1090.88, stdev=302.58 lat (msec): min=196, max=2251, avg=1091.15, stdev=302.68 clat percentiles (msec): | 1.00th=[ 477], 5.00th=[ 651], 10.00th=[ 726], 20.00th=[ 835], | 30.00th=[ 927], 40.00th=[ 995], 50.00th=[ 1062], 60.00th=[ 1133], | 70.00th=[ 1217], 80.00th=[ 1318], 90.00th=[ 1485], 95.00th=[ 1636], | 99.00th=[ 2005], 99.50th=[ 2039], 99.90th=[ 2232], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 7, max= 88, per=24.69%, avg=39.50, stdev=17.97, samples=257 iops : min= 1, max= 22, avg= 9.41, stdev= 4.50, samples=257 lat (msec) : 50=0.12%, 100=0.12%, 250=0.74%, 500=26.60%, 750=23.63% lat (msec) : 1000=18.83%, 2000=29.34%, >=2000=0.62% cpu : usr=0.09%, sys=0.49%, ctx=4135, 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=146169: Tue Sep 1 15:13:33 2026 read: IOPS=9, BW=38.3KiB/s (39.2kB/s)(4976KiB/130005msec) slat (usec): min=34, max=75253, avg=16226.39, stdev=9397.47 clat (msec): min=17, max=1142, avg=506.28, stdev=147.83 lat (msec): min=30, max=1157, avg=522.51, stdev=149.63 clat percentiles (msec): | 1.00th=[ 215], 5.00th=[ 309], 10.00th=[ 347], 20.00th=[ 388], | 30.00th=[ 422], 40.00th=[ 451], 50.00th=[ 485], 60.00th=[ 518], | 70.00th=[ 558], 80.00th=[ 617], 90.00th=[ 709], 95.00th=[ 785], | 99.00th=[ 969], 99.50th=[ 1028], 99.90th=[ 1083], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 7, max= 112, per=25.05%, avg=38.58, stdev=19.00, samples=252 iops : min= 1, max= 28, avg= 9.17, stdev= 4.76, samples=252 write: IOPS=10, BW=40.5KiB/s (41.5kB/s)(5264KiB/130005msec); 0 zone resets slat (usec): min=30, max=25241, avg=271.93, stdev=1173.83 clat (msec): min=218, max=2148, avg=1085.41, stdev=305.81 lat (msec): min=218, max=2149, avg=1085.68, stdev=305.91 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 634], 10.00th=[ 726], 20.00th=[ 852], | 30.00th=[ 919], 40.00th=[ 995], 50.00th=[ 1053], 60.00th=[ 1133], | 70.00th=[ 1234], 80.00th=[ 1334], 90.00th=[ 1485], 95.00th=[ 1620], | 99.00th=[ 1955], 99.50th=[ 2072], 99.90th=[ 2123], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 7, max= 88, per=25.22%, avg=40.36, stdev=17.88, samples=255 iops : min= 1, max= 22, avg= 9.62, stdev= 4.50, samples=255 lat (msec) : 20=0.04%, 50=0.04%, 100=0.04%, 250=0.70%, 500=26.60% lat (msec) : 750=23.83%, 1000=18.24%, 2000=30.08%, >=2000=0.43% cpu : usr=0.07%, sys=0.46%, ctx=3850, 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=146170: Tue Sep 1 15:13:33 2026 read: IOPS=9, BW=38.3KiB/s (39.3kB/s)(4984KiB/130014msec) slat (msec): min=3, max=409, avg=17.00, stdev=14.97 clat (msec): min=14, max=1045, avg=505.39, stdev=145.66 lat (msec): min=32, max=1116, avg=522.39, stdev=147.37 clat percentiles (msec): | 1.00th=[ 241], 5.00th=[ 313], 10.00th=[ 338], 20.00th=[ 384], | 30.00th=[ 418], 40.00th=[ 451], 50.00th=[ 485], 60.00th=[ 523], | 70.00th=[ 567], 80.00th=[ 625], 90.00th=[ 709], 95.00th=[ 776], | 99.00th=[ 911], 99.50th=[ 978], 99.90th=[ 1036], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 7, max= 104, per=25.65%, avg=39.50, stdev=19.96, samples=248 iops : min= 1, max= 26, avg= 9.40, stdev= 5.04, samples=248 write: IOPS=10, BW=40.4KiB/s (41.4kB/s)(5256KiB/130014msec); 0 zone resets slat (usec): min=26, max=13742, avg=275.48, stdev=954.66 clat (msec): min=248, max=2146, avg=1083.83, stdev=295.12 lat (msec): min=248, max=2147, avg=1084.11, stdev=295.14 clat percentiles (msec): | 1.00th=[ 506], 5.00th=[ 659], 10.00th=[ 735], 20.00th=[ 844], | 30.00th=[ 936], 40.00th=[ 986], 50.00th=[ 1045], 60.00th=[ 1116], | 70.00th=[ 1217], 80.00th=[ 1318], 90.00th=[ 1485], 95.00th=[ 1603], | 99.00th=[ 1955], 99.50th=[ 2039], 99.90th=[ 2140], 99.95th=[ 2140], | 99.99th=[ 2140] bw ( KiB/s): min= 7, max= 87, per=24.78%, avg=39.65, stdev=17.73, samples=258 iops : min= 1, max= 21, avg= 9.45, stdev= 4.44, samples=258 lat (msec) : 20=0.04%, 50=0.04%, 100=0.04%, 250=0.59%, 500=25.66% lat (msec) : 750=25.04%, 1000=19.02%, 2000=29.22%, >=2000=0.35% cpu : usr=0.09%, sys=0.45%, ctx=3872, 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=146171: Tue Sep 1 15:13:33 2026 read: IOPS=9, BW=38.9KiB/s (39.9kB/s)(5060KiB/130006msec) slat (usec): min=3418, max=68190, avg=16190.03, stdev=9608.41 clat (msec): min=9, max=1091, avg=504.86, stdev=148.82 lat (msec): min=15, max=1117, avg=521.06, stdev=150.98 clat percentiles (msec): | 1.00th=[ 226], 5.00th=[ 313], 10.00th=[ 342], 20.00th=[ 384], | 30.00th=[ 414], 40.00th=[ 451], 50.00th=[ 485], 60.00th=[ 518], | 70.00th=[ 567], 80.00th=[ 617], 90.00th=[ 701], 95.00th=[ 776], | 99.00th=[ 969], 99.50th=[ 995], 99.90th=[ 1083], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 7, max= 112, per=25.78%, avg=39.70, stdev=19.49, samples=250 iops : min= 1, max= 28, avg= 9.46, stdev= 4.90, samples=250 write: IOPS=9, BW=39.8KiB/s (40.8kB/s)(5180KiB/130006msec); 0 zone resets slat (usec): min=31, max=16118, avg=256.15, stdev=943.77 clat (msec): min=298, max=2246, avg=1093.49, stdev=303.58 lat (msec): min=298, max=2246, avg=1093.75, stdev=303.61 clat percentiles (msec): | 1.00th=[ 451], 5.00th=[ 651], 10.00th=[ 735], 20.00th=[ 844], | 30.00th=[ 927], 40.00th=[ 995], 50.00th=[ 1083], 60.00th=[ 1150], | 70.00th=[ 1234], 80.00th=[ 1318], 90.00th=[ 1485], 95.00th=[ 1620], | 99.00th=[ 1989], 99.50th=[ 2039], 99.90th=[ 2140], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 7, max= 96, per=24.77%, avg=39.63, stdev=18.57, samples=255 iops : min= 1, max= 24, avg= 9.44, stdev= 4.65, samples=255 lat (msec) : 10=0.04%, 50=0.04%, 100=0.12%, 250=0.59%, 500=26.84% lat (msec) : 750=24.02%, 1000=18.16%, 2000=29.77%, >=2000=0.43% cpu : usr=0.08%, sys=0.48%, ctx=4049, 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=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=154KiB/s (158kB/s), 38.3KiB/s-38.9KiB/s (39.2kB/s-39.9kB/s), io=19.6MiB (20.5MB), run=130005-130014msec WRITE: bw=161KiB/s (165kB/s), 39.8KiB/s-40.5KiB/s (40.8kB/s-41.5kB/s), io=20.4MiB (21.4MB), run=130005-130014msec 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=146196: Tue Sep 1 15:13:43 2026 read: IOPS=2, BW=91.5MiB/s (95.0MB/s)(40.0MiB/437msec) slat (nsec): min=32715k, max=32715k, avg=32714960.00, stdev= 0.00 clat (nsec): min=377185k, max=377185k, avg=377185016.00, stdev= 0.00 lat (nsec): min=409905k, max=409905k, avg=409904726.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 376], 10.00th=[ 376], 20.00th=[ 376], | 30.00th=[ 376], 40.00th=[ 376], 50.00th=[ 376], 60.00th=[ 376], | 70.00th=[ 376], 80.00th=[ 376], 90.00th=[ 376], 95.00th=[ 376], | 99.00th=[ 376], 99.50th=[ 376], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.29%, ctx=35, 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=91.5MiB/s (95.0MB/s), 91.5MiB/s-91.5MiB/s (95.0MB/s-95.0MB/s), io=40.0MiB (41.9MB), run=437-437msec 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