== sanity test 398c: run fio to test AIO ================= 21:44:40 (1786067080) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.614275 s, 68.3 MB/s osc.lustre-OST0000-osc-ffff9d2d8679e800.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=145677: Thu Aug 6 21:47:29 2026 write: IOPS=16, BW=64.7KiB/s (66.2kB/s)(10.0MiB/158373msec); 0 zone resets slat (usec): min=42, max=19584, avg=338.37, stdev=932.54 clat (msec): min=277, max=2270, avg=988.45, stdev=324.23 lat (msec): min=277, max=2271, avg=988.79, stdev=324.26 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 558], 10.00th=[ 642], 20.00th=[ 743], | 30.00th=[ 810], 40.00th=[ 877], 50.00th=[ 944], 60.00th=[ 1003], | 70.00th=[ 1083], 80.00th=[ 1200], 90.00th=[ 1418], 95.00th=[ 1636], | 99.00th=[ 1938], 99.50th=[ 2089], 99.90th=[ 2265], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 7, max= 256, per=25.26%, avg=65.18, stdev=32.29, samples=309 iops : min= 1, max= 64, avg=15.80, stdev= 8.12, samples=309 lat (msec) : 500=2.66%, 750=19.02%, 1000=37.85%, 2000=39.84%, >=2000=0.62% cpu : usr=0.04%, sys=0.29%, ctx=1883, 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=145678: Thu Aug 6 21:47:29 2026 write: IOPS=16, BW=64.7KiB/s (66.2kB/s)(10.0MiB/158371msec); 0 zone resets slat (usec): min=51, max=18874, avg=305.42, stdev=811.12 clat (msec): min=281, max=2307, avg=988.37, stdev=327.35 lat (msec): min=281, max=2308, avg=988.67, stdev=327.37 clat percentiles (msec): | 1.00th=[ 284], 5.00th=[ 558], 10.00th=[ 642], 20.00th=[ 735], | 30.00th=[ 810], 40.00th=[ 877], 50.00th=[ 944], 60.00th=[ 1011], | 70.00th=[ 1083], 80.00th=[ 1200], 90.00th=[ 1418], 95.00th=[ 1670], | 99.00th=[ 1972], 99.50th=[ 2106], 99.90th=[ 2299], 99.95th=[ 2299], | 99.99th=[ 2299] bw ( KiB/s): min= 7, max= 256, per=25.60%, avg=66.04, stdev=35.30, samples=305 iops : min= 1, max= 64, avg=16.02, stdev= 8.84, samples=305 lat (msec) : 500=3.63%, 750=18.75%, 1000=36.45%, 2000=40.35%, >=2000=0.82% cpu : usr=0.05%, sys=0.29%, ctx=1867, 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=145679: Thu Aug 6 21:47:29 2026 write: IOPS=16, BW=64.7KiB/s (66.2kB/s)(10.0MiB/158372msec); 0 zone resets slat (usec): min=50, max=20288, avg=342.76, stdev=908.93 clat (msec): min=124, max=2421, avg=988.42, stdev=333.12 lat (msec): min=124, max=2421, avg=988.76, stdev=333.18 clat percentiles (msec): | 1.00th=[ 249], 5.00th=[ 542], 10.00th=[ 617], 20.00th=[ 735], | 30.00th=[ 810], 40.00th=[ 869], 50.00th=[ 944], 60.00th=[ 1020], | 70.00th=[ 1083], 80.00th=[ 1200], 90.00th=[ 1452], 95.00th=[ 1670], | 99.00th=[ 1955], 99.50th=[ 2123], 99.90th=[ 2366], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 7, max= 264, per=25.34%, avg=65.38, stdev=33.90, samples=308 iops : min= 1, max= 66, avg=15.85, stdev= 8.51, samples=308 lat (msec) : 250=1.29%, 500=1.60%, 750=19.65%, 1000=35.23%, 2000=41.52% lat (msec) : >=2000=0.70% cpu : usr=0.04%, sys=0.29%, ctx=2157, 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=145680: Thu Aug 6 21:47:29 2026 write: IOPS=16, BW=64.7KiB/s (66.3kB/s)(10.0MiB/158213msec); 0 zone resets slat (usec): min=42, max=16846, avg=348.75, stdev=927.44 clat (msec): min=89, max=2410, avg=987.88, stdev=328.78 lat (msec): min=89, max=2410, avg=988.24, stdev=328.77 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 550], 10.00th=[ 634], 20.00th=[ 743], | 30.00th=[ 810], 40.00th=[ 869], 50.00th=[ 944], 60.00th=[ 1011], | 70.00th=[ 1099], 80.00th=[ 1217], 90.00th=[ 1418], 95.00th=[ 1636], | 99.00th=[ 1955], 99.50th=[ 2165], 99.90th=[ 2333], 99.95th=[ 2333], | 99.99th=[ 2400] bw ( KiB/s): min= 7, max= 248, per=25.26%, avg=65.17, stdev=31.26, samples=309 iops : min= 1, max= 62, avg=15.79, stdev= 7.86, samples=309 lat (msec) : 100=0.04%, 250=0.31%, 500=3.20%, 750=18.12%, 1000=37.07% lat (msec) : 2000=40.43%, >=2000=0.82% cpu : usr=0.05%, sys=0.33%, ctx=2159, 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=259KiB/s (265kB/s), 64.7KiB/s-64.7KiB/s (66.2kB/s-66.3kB/s), io=40.0MiB (41.9MB), run=158213-158373msec 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=145713: Thu Aug 6 21:49:30 2026 read: IOPS=11, BW=45.8KiB/s (46.9kB/s)(5048KiB/110130msec) slat (usec): min=89, max=49539, avg=14122.12, stdev=7940.81 clat (msec): min=15, max=1374, avg=435.79, stdev=132.98 lat (msec): min=27, max=1394, avg=449.92, stdev=134.33 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 257], 10.00th=[ 296], 20.00th=[ 338], | 30.00th=[ 372], 40.00th=[ 401], 50.00th=[ 430], 60.00th=[ 456], | 70.00th=[ 485], 80.00th=[ 527], 90.00th=[ 584], 95.00th=[ 659], | 99.00th=[ 793], 99.50th=[ 877], 99.90th=[ 1183], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min= 7, max= 119, per=25.95%, avg=46.71, stdev=20.72, samples=211 iops : min= 1, max= 29, avg=11.18, stdev= 5.22, samples=211 write: IOPS=11, BW=47.1KiB/s (48.3kB/s)(5192KiB/110130msec); 0 zone resets slat (usec): min=56, max=13269, avg=459.82, stdev=1144.81 clat (msec): min=92, max=2080, avg=918.47, stdev=274.04 lat (msec): min=92, max=2080, avg=918.93, stdev=274.07 clat percentiles (msec): | 1.00th=[ 239], 5.00th=[ 535], 10.00th=[ 609], 20.00th=[ 701], | 30.00th=[ 768], 40.00th=[ 835], 50.00th=[ 911], 60.00th=[ 969], | 70.00th=[ 1020], 80.00th=[ 1099], 90.00th=[ 1234], 95.00th=[ 1368], | 99.00th=[ 1854], 99.50th=[ 1905], 99.90th=[ 2072], 99.95th=[ 2089], | 99.99th=[ 2089] bw ( KiB/s): min= 7, max= 119, per=25.13%, avg=47.00, stdev=21.51, samples=215 iops : min= 1, max= 29, avg=11.24, stdev= 5.41, samples=215 lat (msec) : 20=0.08%, 50=0.35%, 100=0.31%, 250=2.07%, 500=35.66% lat (msec) : 750=23.20%, 1000=21.21%, 2000=16.99%, >=2000=0.12% cpu : usr=0.09%, sys=0.68%, ctx=4791, 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=145714: Thu Aug 6 21:49:30 2026 read: IOPS=11, BW=44.8KiB/s (45.8kB/s)(4976KiB/111141msec) slat (usec): min=3247, max=63365, avg=14388.54, stdev=7845.13 clat (msec): min=8, max=962, avg=436.89, stdev=122.14 lat (msec): min=12, max=972, avg=451.28, stdev=123.60 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 264], 10.00th=[ 305], 20.00th=[ 338], | 30.00th=[ 363], 40.00th=[ 397], 50.00th=[ 426], 60.00th=[ 456], | 70.00th=[ 493], 80.00th=[ 531], 90.00th=[ 600], 95.00th=[ 659], | 99.00th=[ 776], 99.50th=[ 785], 99.90th=[ 835], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 7, max= 104, per=24.60%, avg=44.28, stdev=21.08, samples=219 iops : min= 1, max= 26, avg=10.57, stdev= 5.26, samples=219 write: IOPS=11, BW=47.4KiB/s (48.5kB/s)(5264KiB/111141msec); 0 zone resets slat (usec): min=58, max=14894, avg=398.33, stdev=853.57 clat (msec): min=163, max=2027, avg=922.54, stdev=257.65 lat (msec): min=164, max=2027, avg=922.94, stdev=257.71 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 542], 10.00th=[ 617], 20.00th=[ 718], | 30.00th=[ 785], 40.00th=[ 852], 50.00th=[ 919], 60.00th=[ 969], | 70.00th=[ 1028], 80.00th=[ 1099], 90.00th=[ 1217], 95.00th=[ 1334], | 99.00th=[ 1720], 99.50th=[ 1804], 99.90th=[ 1921], 99.95th=[ 2022], | 99.99th=[ 2022] bw ( KiB/s): min= 7, max= 96, per=25.00%, avg=46.76, stdev=19.90, samples=220 iops : min= 1, max= 24, avg=11.19, stdev= 5.02, samples=220 lat (msec) : 10=0.04%, 50=0.16%, 100=0.08%, 250=1.52%, 500=35.31% lat (msec) : 750=23.20%, 1000=22.19%, 2000=17.46%, >=2000=0.04% cpu : usr=0.10%, sys=0.66%, ctx=4563, 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=145715: Thu Aug 6 21:49:30 2026 read: IOPS=11, BW=44.9KiB/s (45.9kB/s)(4984KiB/111097msec) slat (usec): min=3399, max=54299, avg=14980.26, stdev=8028.72 clat (msec): min=11, max=955, avg=443.43, stdev=126.48 lat (msec): min=16, max=974, avg=458.41, stdev=128.48 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 271], 10.00th=[ 305], 20.00th=[ 342], | 30.00th=[ 372], 40.00th=[ 401], 50.00th=[ 435], 60.00th=[ 460], | 70.00th=[ 493], 80.00th=[ 542], 90.00th=[ 600], 95.00th=[ 676], | 99.00th=[ 793], 99.50th=[ 835], 99.90th=[ 953], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 7, max= 111, per=24.91%, avg=44.83, stdev=21.17, samples=218 iops : min= 1, max= 27, avg=10.70, stdev= 5.31, samples=218 write: IOPS=11, BW=47.3KiB/s (48.4kB/s)(5256KiB/111097msec); 0 zone resets slat (usec): min=54, max=10596, avg=393.79, stdev=900.54 clat (msec): min=238, max=1929, avg=915.32, stdev=251.47 lat (msec): min=239, max=1929, avg=915.72, stdev=251.46 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 550], 10.00th=[ 617], 20.00th=[ 709], | 30.00th=[ 776], 40.00th=[ 844], 50.00th=[ 902], 60.00th=[ 961], | 70.00th=[ 1020], 80.00th=[ 1099], 90.00th=[ 1200], 95.00th=[ 1334], | 99.00th=[ 1770], 99.50th=[ 1821], 99.90th=[ 1888], 99.95th=[ 1938], | 99.99th=[ 1938] bw ( KiB/s): min= 7, max= 111, per=24.89%, avg=46.55, stdev=20.44, samples=220 iops : min= 1, max= 27, avg=11.13, stdev= 5.19, samples=220 lat (msec) : 20=0.04%, 50=0.12%, 100=0.20%, 250=0.98%, 500=35.31% lat (msec) : 750=24.49%, 1000=21.56%, 2000=17.30% cpu : usr=0.08%, sys=0.68%, ctx=4453, 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=145716: Thu Aug 6 21:49:30 2026 read: IOPS=11, BW=45.7KiB/s (46.8kB/s)(5060KiB/110609msec) slat (usec): min=2988, max=61931, avg=14590.41, stdev=8425.57 clat (msec): min=32, max=946, avg=438.56, stdev=123.49 lat (msec): min=38, max=962, avg=453.16, stdev=125.03 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 266], 10.00th=[ 296], 20.00th=[ 338], | 30.00th=[ 368], 40.00th=[ 397], 50.00th=[ 426], 60.00th=[ 456], | 70.00th=[ 489], 80.00th=[ 527], 90.00th=[ 600], 95.00th=[ 676], | 99.00th=[ 776], 99.50th=[ 810], 99.90th=[ 927], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 7, max= 111, per=25.48%, avg=45.87, stdev=21.46, samples=216 iops : min= 1, max= 27, avg=10.96, stdev= 5.43, samples=216 write: IOPS=11, BW=46.8KiB/s (47.0kB/s)(5180KiB/110609msec); 0 zone resets slat (usec): min=43, max=9884, avg=366.79, stdev=759.89 clat (msec): min=195, max=2047, avg=921.63, stdev=256.23 lat (msec): min=195, max=2047, avg=922.00, stdev=256.25 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 542], 10.00th=[ 634], 20.00th=[ 709], | 30.00th=[ 785], 40.00th=[ 844], 50.00th=[ 902], 60.00th=[ 961], | 70.00th=[ 1028], 80.00th=[ 1116], 90.00th=[ 1217], 95.00th=[ 1385], | 99.00th=[ 1703], 99.50th=[ 1821], 99.90th=[ 1938], 99.95th=[ 2056], | 99.99th=[ 2056] bw ( KiB/s): min= 7, max= 103, per=24.76%, avg=46.30, stdev=19.50, samples=218 iops : min= 1, max= 25, avg=11.07, stdev= 4.93, samples=218 lat (msec) : 50=0.04%, 100=0.16%, 250=1.45%, 500=36.52%, 750=22.81% lat (msec) : 1000=21.80%, 2000=17.19%, >=2000=0.04% cpu : usr=0.09%, sys=0.69%, ctx=4740, 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=181KiB/s (185kB/s), 44.8KiB/s-45.8KiB/s (45.8kB/s-46.9kB/s), io=19.6MiB (20.5MB), run=110130-111141msec WRITE: bw=188KiB/s (192kB/s), 46.8KiB/s-47.4KiB/s (47.0kB/s-48.5kB/s), io=20.4MiB (21.4MB), run=110130-111141msec 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=145736: Thu Aug 6 21:49:39 2026 read: IOPS=1, BW=72.5MiB/s (75.0MB/s)(40.0MiB/552msec) slat (nsec): min=38377k, max=38377k, avg=38377187.00, stdev= 0.00 clat (nsec): min=475373k, max=475373k, avg=475372827.00, stdev= 0.00 lat (nsec): min=513755k, max=513755k, avg=513755148.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 477], 5.00th=[ 477], 10.00th=[ 477], 20.00th=[ 477], | 30.00th=[ 477], 40.00th=[ 477], 50.00th=[ 477], 60.00th=[ 477], | 70.00th=[ 477], 80.00th=[ 477], 90.00th=[ 477], 95.00th=[ 477], | 99.00th=[ 477], 99.50th=[ 477], 99.90th=[ 477], 99.95th=[ 477], | 99.99th=[ 477] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.54%, ctx=24, majf=0, minf=7 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=72.5MiB/s (75.0MB/s), 72.5MiB/s-72.5MiB/s (75.0MB/s-75.0MB/s), io=40.0MiB (41.9MB), run=552-552msec 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