== sanity test 398c: run fio to test AIO ================= 04:00:07 (1786953607) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.489937 s, 85.6 MB/s osc.lustre-OST0000-osc-ffff8a4439a1f000.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=146259: Mon Aug 17 04:03:18 2026 write: IOPS=14, BW=56.5KiB/s (57.9kB/s)(10.0MiB/181204msec); 0 zone resets slat (usec): min=44, max=17048, avg=365.61, stdev=1105.12 clat (msec): min=180, max=2390, avg=1131.12, stdev=341.55 lat (msec): min=180, max=2390, avg=1131.49, stdev=341.55 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 634], 10.00th=[ 751], 20.00th=[ 860], | 30.00th=[ 936], 40.00th=[ 1011], 50.00th=[ 1099], 60.00th=[ 1200], | 70.00th=[ 1284], 80.00th=[ 1401], 90.00th=[ 1569], 95.00th=[ 1703], | 99.00th=[ 2056], 99.50th=[ 2198], 99.90th=[ 2400], 99.95th=[ 2400], | 99.99th=[ 2400] bw ( KiB/s): min= 7, max= 255, per=24.98%, avg=56.46, stdev=29.13, samples=356 iops : min= 1, max= 63, avg=13.62, stdev= 7.30, samples=356 lat (msec) : 250=0.62%, 500=2.03%, 750=7.27%, 1000=28.75%, 2000=59.84% lat (msec) : >=2000=1.48% cpu : usr=0.04%, sys=0.29%, ctx=2227, 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=146260: Mon Aug 17 04:03:18 2026 write: IOPS=14, BW=56.6KiB/s (57.9kB/s)(10.0MiB/180942msec); 0 zone resets slat (usec): min=47, max=25736, avg=409.82, stdev=1312.17 clat (msec): min=127, max=2287, avg=1129.93, stdev=347.31 lat (msec): min=127, max=2287, avg=1130.35, stdev=347.33 clat percentiles (msec): | 1.00th=[ 236], 5.00th=[ 625], 10.00th=[ 751], 20.00th=[ 869], | 30.00th=[ 936], 40.00th=[ 1003], 50.00th=[ 1099], 60.00th=[ 1183], | 70.00th=[ 1284], 80.00th=[ 1401], 90.00th=[ 1569], 95.00th=[ 1703], | 99.00th=[ 2072], 99.50th=[ 2265], 99.90th=[ 2299], 99.95th=[ 2299], | 99.99th=[ 2299] bw ( KiB/s): min= 7, max= 229, per=24.95%, avg=56.39, stdev=29.11, samples=356 iops : min= 1, max= 57, avg=13.60, stdev= 7.28, samples=356 lat (msec) : 250=1.02%, 500=2.30%, 750=6.56%, 1000=29.02%, 2000=59.53% lat (msec) : >=2000=1.56% cpu : usr=0.05%, sys=0.32%, ctx=2432, 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=146261: Mon Aug 17 04:03:18 2026 write: IOPS=14, BW=56.5KiB/s (57.9kB/s)(10.0MiB/181203msec); 0 zone resets slat (usec): min=47, max=24374, avg=378.43, stdev=1228.17 clat (msec): min=167, max=2401, avg=1130.90, stdev=345.31 lat (msec): min=167, max=2401, avg=1131.28, stdev=345.33 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 642], 10.00th=[ 751], 20.00th=[ 852], | 30.00th=[ 936], 40.00th=[ 1020], 50.00th=[ 1099], 60.00th=[ 1183], | 70.00th=[ 1301], 80.00th=[ 1418], 90.00th=[ 1586], 95.00th=[ 1737], | 99.00th=[ 1972], 99.50th=[ 2089], 99.90th=[ 2299], 99.95th=[ 2366], | 99.99th=[ 2400] bw ( KiB/s): min= 7, max= 224, per=25.85%, avg=58.42, stdev=33.56, samples=344 iops : min= 1, max= 56, avg=14.11, stdev= 8.41, samples=344 lat (msec) : 250=1.25%, 500=2.03%, 750=6.72%, 1000=28.28%, 2000=60.82% lat (msec) : >=2000=0.90% cpu : usr=0.04%, sys=0.29%, ctx=1830, 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=146262: Mon Aug 17 04:03:18 2026 write: IOPS=14, BW=56.6KiB/s (57.0kB/s)(10.0MiB/180938msec); 0 zone resets slat (usec): min=49, max=25164, avg=456.95, stdev=1527.96 clat (msec): min=170, max=2402, avg=1129.22, stdev=345.53 lat (msec): min=171, max=2403, avg=1129.68, stdev=345.56 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 600], 10.00th=[ 751], 20.00th=[ 852], | 30.00th=[ 936], 40.00th=[ 1011], 50.00th=[ 1099], 60.00th=[ 1200], | 70.00th=[ 1301], 80.00th=[ 1418], 90.00th=[ 1569], 95.00th=[ 1720], | 99.00th=[ 2056], 99.50th=[ 2123], 99.90th=[ 2232], 99.95th=[ 2366], | 99.99th=[ 2400] bw ( KiB/s): min= 7, max= 224, per=25.04%, avg=56.58, stdev=28.56, samples=355 iops : min= 1, max= 56, avg=13.65, stdev= 7.16, samples=355 lat (msec) : 250=1.25%, 500=1.72%, 750=6.84%, 1000=28.67%, 2000=60.20% lat (msec) : >=2000=1.33% cpu : usr=0.05%, sys=0.32%, ctx=2386, 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=226KiB/s (231kB/s), 56.5KiB/s-56.6KiB/s (57.9kB/s-57.0kB/s), io=40.0MiB (41.9MB), run=180938-181204msec 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=146308: Mon Aug 17 04:05:19 2026 read: IOPS=11, BW=44.3KiB/s (45.4kB/s)(5048KiB/113864msec) slat (usec): min=3167, max=62991, avg=15294.06, stdev=7974.05 clat (msec): min=12, max=928, avg=440.21, stdev=113.84 lat (msec): min=24, max=942, avg=455.52, stdev=115.02 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 288], 10.00th=[ 313], 20.00th=[ 351], | 30.00th=[ 384], 40.00th=[ 405], 50.00th=[ 435], 60.00th=[ 460], | 70.00th=[ 493], 80.00th=[ 527], 90.00th=[ 575], 95.00th=[ 634], | 99.00th=[ 768], 99.50th=[ 793], 99.90th=[ 869], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 7, max= 159, per=24.93%, avg=43.88, stdev=20.62, samples=225 iops : min= 1, max= 39, avg=10.44, stdev= 5.16, samples=225 write: IOPS=11, BW=45.6KiB/s (46.7kB/s)(5192KiB/113864msec); 0 zone resets slat (usec): min=56, max=11138, avg=404.63, stdev=846.29 clat (msec): min=413, max=1752, avg=957.73, stdev=254.24 lat (msec): min=414, max=1753, avg=958.13, stdev=254.23 clat percentiles (msec): | 1.00th=[ 464], 5.00th=[ 567], 10.00th=[ 642], 20.00th=[ 743], | 30.00th=[ 818], 40.00th=[ 877], 50.00th=[ 927], 60.00th=[ 986], | 70.00th=[ 1070], 80.00th=[ 1167], 90.00th=[ 1318], 95.00th=[ 1418], | 99.00th=[ 1603], 99.50th=[ 1620], 99.90th=[ 1703], 99.95th=[ 1754], | 99.99th=[ 1754] bw ( KiB/s): min= 7, max= 112, per=24.87%, avg=45.52, stdev=20.41, samples=223 iops : min= 1, max= 28, avg=10.86, stdev= 5.15, samples=223 lat (msec) : 20=0.12%, 50=0.12%, 100=0.27%, 250=0.82%, 500=35.70% lat (msec) : 750=22.34%, 1000=21.41%, 2000=19.22% cpu : usr=0.13%, sys=0.74%, ctx=4741, 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=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=146309: Mon Aug 17 04:05:19 2026 read: IOPS=10, BW=43.7KiB/s (44.7kB/s)(4976KiB/113928msec) slat (usec): min=3369, max=59167, avg=15436.73, stdev=8050.93 clat (msec): min=22, max=923, avg=444.74, stdev=111.86 lat (msec): min=31, max=953, avg=460.18, stdev=112.94 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 292], 10.00th=[ 321], 20.00th=[ 363], | 30.00th=[ 388], 40.00th=[ 409], 50.00th=[ 435], 60.00th=[ 460], | 70.00th=[ 489], 80.00th=[ 527], 90.00th=[ 575], 95.00th=[ 642], | 99.00th=[ 776], 99.50th=[ 818], 99.90th=[ 894], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 7, max= 111, per=24.63%, avg=43.36, stdev=19.45, samples=224 iops : min= 1, max= 27, avg=10.31, stdev= 4.88, samples=224 write: IOPS=11, BW=46.2KiB/s (47.3kB/s)(5264KiB/113928msec); 0 zone resets slat (usec): min=57, max=16068, avg=515.34, stdev=1335.68 clat (msec): min=329, max=1661, avg=947.69, stdev=262.16 lat (msec): min=329, max=1661, avg=948.21, stdev=262.20 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 542], 10.00th=[ 625], 20.00th=[ 718], | 30.00th=[ 802], 40.00th=[ 860], 50.00th=[ 919], 60.00th=[ 986], | 70.00th=[ 1062], 80.00th=[ 1183], 90.00th=[ 1334], 95.00th=[ 1418], | 99.00th=[ 1569], 99.50th=[ 1603], 99.90th=[ 1653], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 7, max= 102, per=24.90%, avg=45.57, stdev=20.89, samples=226 iops : min= 1, max= 25, avg=10.87, stdev= 5.27, samples=226 lat (msec) : 50=0.20%, 100=0.16%, 250=0.70%, 500=35.51%, 750=23.32% lat (msec) : 1000=20.43%, 2000=19.69% cpu : usr=0.11%, sys=0.79%, ctx=4950, 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=146310: Mon Aug 17 04:05:19 2026 read: IOPS=10, BW=43.7KiB/s (44.8kB/s)(4984KiB/113928msec) slat (usec): min=3258, max=64684, avg=14962.11, stdev=8079.36 clat (msec): min=45, max=886, avg=442.08, stdev=108.21 lat (msec): min=63, max=901, avg=457.05, stdev=109.47 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 284], 10.00th=[ 313], 20.00th=[ 359], | 30.00th=[ 388], 40.00th=[ 414], 50.00th=[ 435], 60.00th=[ 460], | 70.00th=[ 489], 80.00th=[ 527], 90.00th=[ 584], 95.00th=[ 625], | 99.00th=[ 751], 99.50th=[ 768], 99.90th=[ 810], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 7, max= 112, per=25.03%, avg=44.05, stdev=20.92, samples=222 iops : min= 1, max= 28, avg=10.48, stdev= 5.27, samples=222 write: IOPS=11, BW=46.1KiB/s (47.2kB/s)(5256KiB/113928msec); 0 zone resets slat (usec): min=55, max=22918, avg=456.11, stdev=1082.80 clat (msec): min=364, max=1802, avg=951.25, stdev=263.87 lat (msec): min=364, max=1802, avg=951.71, stdev=263.89 clat percentiles (msec): | 1.00th=[ 426], 5.00th=[ 542], 10.00th=[ 625], 20.00th=[ 718], | 30.00th=[ 810], 40.00th=[ 860], 50.00th=[ 919], 60.00th=[ 986], | 70.00th=[ 1083], 80.00th=[ 1167], 90.00th=[ 1318], 95.00th=[ 1401], | 99.00th=[ 1586], 99.50th=[ 1670], 99.90th=[ 1804], 99.95th=[ 1804], | 99.99th=[ 1804] bw ( KiB/s): min= 7, max= 96, per=24.77%, avg=45.32, stdev=17.89, samples=226 iops : min= 1, max= 24, avg=10.80, stdev= 4.47, samples=226 lat (msec) : 50=0.04%, 100=0.20%, 250=0.74%, 500=36.09%, 750=23.20% lat (msec) : 1000=20.00%, 2000=19.73% cpu : usr=0.09%, sys=0.76%, ctx=4398, 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=146311: Mon Aug 17 04:05:19 2026 read: IOPS=11, BW=44.6KiB/s (45.7kB/s)(5060KiB/113387msec) slat (usec): min=83, max=66198, avg=15384.89, stdev=8066.06 clat (msec): min=12, max=1201, avg=443.76, stdev=126.15 lat (msec): min=14, max=1212, avg=459.16, stdev=127.58 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 279], 10.00th=[ 313], 20.00th=[ 359], | 30.00th=[ 388], 40.00th=[ 414], 50.00th=[ 439], 60.00th=[ 464], | 70.00th=[ 493], 80.00th=[ 531], 90.00th=[ 592], 95.00th=[ 634], | 99.00th=[ 802], 99.50th=[ 953], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 7, max= 110, per=25.19%, avg=44.34, stdev=19.05, samples=223 iops : min= 1, max= 27, avg=10.56, stdev= 4.79, samples=223 write: IOPS=11, BW=45.7KiB/s (46.8kB/s)(5180KiB/113387msec); 0 zone resets slat (usec): min=59, max=17546, avg=456.44, stdev=1164.52 clat (msec): min=128, max=1718, avg=951.00, stdev=259.29 lat (msec): min=128, max=1719, avg=951.46, stdev=259.32 clat percentiles (msec): | 1.00th=[ 359], 5.00th=[ 567], 10.00th=[ 634], 20.00th=[ 735], | 30.00th=[ 802], 40.00th=[ 869], 50.00th=[ 927], 60.00th=[ 1003], | 70.00th=[ 1083], 80.00th=[ 1167], 90.00th=[ 1318], 95.00th=[ 1401], | 99.00th=[ 1586], 99.50th=[ 1603], 99.90th=[ 1653], 99.95th=[ 1720], | 99.99th=[ 1720] bw ( KiB/s): min= 7, max= 111, per=24.91%, avg=45.59, stdev=19.52, samples=222 iops : min= 1, max= 27, avg=10.87, stdev= 4.91, samples=222 lat (msec) : 20=0.20%, 50=0.27%, 100=0.35%, 250=1.05%, 500=35.23% lat (msec) : 750=22.23%, 1000=20.16%, 2000=20.51% cpu : usr=0.12%, sys=0.80%, ctx=4839, 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=176KiB/s (180kB/s), 43.7KiB/s-44.6KiB/s (44.7kB/s-45.7kB/s), io=19.6MiB (20.5MB), run=113387-113928msec WRITE: bw=183KiB/s (188kB/s), 45.6KiB/s-46.2KiB/s (46.7kB/s-47.3kB/s), io=20.4MiB (21.4MB), run=113387-113928msec 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=146333: Mon Aug 17 04:05:27 2026 read: IOPS=1, BW=62.1MiB/s (65.1MB/s)(40.0MiB/644msec) slat (nsec): min=68517k, max=68517k, avg=68517362.00, stdev= 0.00 clat (nsec): min=541707k, max=541707k, avg=541706841.00, stdev= 0.00 lat (nsec): min=610229k, max=610229k, avg=610228751.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 542], 5.00th=[ 542], 10.00th=[ 542], 20.00th=[ 542], | 30.00th=[ 542], 40.00th=[ 542], 50.00th=[ 542], 60.00th=[ 542], | 70.00th=[ 542], 80.00th=[ 542], 90.00th=[ 542], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.71%, ctx=34, majf=0, minf=10 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=62.1MiB/s (65.1MB/s), 62.1MiB/s-62.1MiB/s (65.1MB/s-65.1MB/s), io=40.0MiB (41.9MB), run=644-644msec 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