== sanity test 398c: run fio to test AIO ================= 22:49:35 (1789267775) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.446771 s, 93.9 MB/s osc.lustre-OST0000-osc-ffff90343985e000.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=145370: Sat Sep 12 22:52:24 2026 write: IOPS=15, BW=63.6KiB/s (65.1kB/s)(10.0MiB/161113msec); 0 zone resets slat (usec): min=24, max=17573, avg=218.17, stdev=897.07 clat (msec): min=352, max=2010, avg=1005.59, stdev=243.83 lat (msec): min=353, max=2010, avg=1005.81, stdev=243.82 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 651], 10.00th=[ 735], 20.00th=[ 810], | 30.00th=[ 869], 40.00th=[ 927], 50.00th=[ 1003], 60.00th=[ 1045], | 70.00th=[ 1116], 80.00th=[ 1200], 90.00th=[ 1318], 95.00th=[ 1418], | 99.00th=[ 1754], 99.50th=[ 1821], 99.90th=[ 1921], 99.95th=[ 1989], | 99.99th=[ 2005] bw ( KiB/s): min= 7, max= 128, per=25.60%, avg=65.02, stdev=29.11, samples=310 iops : min= 1, max= 32, avg=15.80, stdev= 7.33, samples=310 lat (msec) : 500=1.99%, 750=10.00%, 1000=38.12%, 2000=49.84%, >=2000=0.04% cpu : usr=0.04%, sys=0.23%, ctx=1631, 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=145371: Sat Sep 12 22:52:24 2026 write: IOPS=15, BW=63.5KiB/s (65.1kB/s)(10.0MiB/161185msec); 0 zone resets slat (usec): min=22, max=26454, avg=206.45, stdev=845.97 clat (msec): min=299, max=2022, avg=1006.17, stdev=239.52 lat (msec): min=299, max=2022, avg=1006.38, stdev=239.52 clat percentiles (msec): | 1.00th=[ 514], 5.00th=[ 634], 10.00th=[ 726], 20.00th=[ 818], | 30.00th=[ 885], 40.00th=[ 944], 50.00th=[ 995], 60.00th=[ 1053], | 70.00th=[ 1116], 80.00th=[ 1183], 90.00th=[ 1301], 95.00th=[ 1418], | 99.00th=[ 1770], 99.50th=[ 1888], 99.90th=[ 2022], 99.95th=[ 2022], | 99.99th=[ 2022] bw ( KiB/s): min= 7, max= 136, per=26.20%, avg=66.55, stdev=32.97, samples=303 iops : min= 1, max= 34, avg=16.19, stdev= 8.29, samples=303 lat (msec) : 500=0.90%, 750=11.64%, 1000=38.36%, 2000=48.95%, >=2000=0.16% cpu : usr=0.04%, sys=0.23%, ctx=1690, 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=145372: Sat Sep 12 22:52:24 2026 write: IOPS=15, BW=63.6KiB/s (65.1kB/s)(10.0MiB/161039msec); 0 zone resets slat (usec): min=22, max=17606, avg=224.62, stdev=905.54 clat (msec): min=151, max=1992, avg=1005.68, stdev=246.18 lat (msec): min=152, max=1992, avg=1005.90, stdev=246.17 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 651], 10.00th=[ 735], 20.00th=[ 802], | 30.00th=[ 877], 40.00th=[ 927], 50.00th=[ 986], 60.00th=[ 1053], | 70.00th=[ 1116], 80.00th=[ 1200], 90.00th=[ 1318], 95.00th=[ 1401], | 99.00th=[ 1720], 99.50th=[ 1888], 99.90th=[ 1955], 99.95th=[ 1989], | 99.99th=[ 1989] bw ( KiB/s): min= 7, max= 136, per=24.96%, avg=63.39, stdev=25.36, samples=318 iops : min= 1, max= 34, avg=15.40, stdev= 6.37, samples=318 lat (msec) : 250=0.16%, 500=1.45%, 750=10.35%, 1000=39.69%, 2000=48.36% cpu : usr=0.06%, sys=0.21%, ctx=1884, 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=145373: Sat Sep 12 22:52:24 2026 write: IOPS=15, BW=63.6KiB/s (65.1kB/s)(10.0MiB/161113msec); 0 zone resets slat (usec): min=22, max=17180, avg=224.59, stdev=958.56 clat (msec): min=271, max=1917, avg=1005.53, stdev=245.37 lat (msec): min=272, max=1918, avg=1005.76, stdev=245.36 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 642], 10.00th=[ 735], 20.00th=[ 802], | 30.00th=[ 869], 40.00th=[ 936], 50.00th=[ 995], 60.00th=[ 1045], | 70.00th=[ 1116], 80.00th=[ 1183], 90.00th=[ 1318], 95.00th=[ 1469], | 99.00th=[ 1670], 99.50th=[ 1804], 99.90th=[ 1905], 99.95th=[ 1905], | 99.99th=[ 1921] bw ( KiB/s): min= 7, max= 128, per=25.36%, avg=64.41, stdev=30.56, samples=313 iops : min= 1, max= 32, avg=15.64, stdev= 7.66, samples=313 lat (msec) : 500=1.52%, 750=10.00%, 1000=38.59%, 2000=49.88% cpu : usr=0.04%, sys=0.22%, ctx=1631, 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=254KiB/s (260kB/s), 63.5KiB/s-63.6KiB/s (65.1kB/s-65.1kB/s), io=40.0MiB (41.9MB), run=161039-161185msec 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=145407: Sat Sep 12 22:54:31 2026 read: IOPS=10, BW=42.8KiB/s (43.8kB/s)(5048KiB/118050msec) slat (usec): min=25, max=62016, avg=15664.58, stdev=8986.19 clat (msec): min=26, max=1466, avg=462.00, stdev=139.20 lat (msec): min=35, max=1479, avg=477.67, stdev=140.37 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 279], 10.00th=[ 317], 20.00th=[ 359], | 30.00th=[ 388], 40.00th=[ 422], 50.00th=[ 451], 60.00th=[ 485], | 70.00th=[ 514], 80.00th=[ 567], 90.00th=[ 625], 95.00th=[ 693], | 99.00th=[ 818], 99.50th=[ 936], 99.90th=[ 1469], 99.95th=[ 1469], | 99.99th=[ 1469] bw ( KiB/s): min= 7, max= 126, per=25.67%, avg=43.13, stdev=20.89, samples=229 iops : min= 1, max= 31, avg=10.31, stdev= 5.22, samples=229 write: IOPS=10, BW=43.0KiB/s (45.0kB/s)(5192KiB/118050msec); 0 zone resets slat (usec): min=27, max=15685, avg=291.73, stdev=1059.83 clat (msec): min=201, max=2342, avg=988.92, stdev=277.56 lat (msec): min=201, max=2342, avg=989.22, stdev=277.54 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 609], 10.00th=[ 667], 20.00th=[ 760], | 30.00th=[ 827], 40.00th=[ 894], 50.00th=[ 961], 60.00th=[ 1028], | 70.00th=[ 1099], 80.00th=[ 1217], 90.00th=[ 1351], 95.00th=[ 1519], | 99.00th=[ 1687], 99.50th=[ 1787], 99.90th=[ 2232], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 7, max= 103, per=25.01%, avg=43.77, stdev=19.30, samples=231 iops : min= 1, max= 25, avg=10.47, stdev= 4.88, samples=231 lat (msec) : 50=0.16%, 100=0.59%, 250=1.09%, 500=31.68%, 750=24.49% lat (msec) : 1000=19.06%, 2000=22.77%, >=2000=0.16% cpu : usr=0.10%, sys=0.57%, ctx=4150, 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=145408: Sat Sep 12 22:54:31 2026 read: IOPS=10, BW=41.8KiB/s (42.8kB/s)(4976KiB/119054msec) slat (usec): min=3113, max=57931, avg=15786.01, stdev=8962.14 clat (msec): min=8, max=970, avg=465.75, stdev=123.57 lat (msec): min=12, max=978, avg=481.54, stdev=125.11 clat percentiles (msec): | 1.00th=[ 188], 5.00th=[ 296], 10.00th=[ 326], 20.00th=[ 363], | 30.00th=[ 401], 40.00th=[ 430], 50.00th=[ 456], 60.00th=[ 489], | 70.00th=[ 518], 80.00th=[ 567], 90.00th=[ 617], 95.00th=[ 684], | 99.00th=[ 785], 99.50th=[ 852], 99.90th=[ 969], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 5, max= 112, per=24.69%, avg=41.48, stdev=20.28, samples=234 iops : min= 1, max= 28, avg= 9.89, stdev= 5.13, samples=234 write: IOPS=11, BW=44.2KiB/s (45.3kB/s)(5264KiB/119054msec); 0 zone resets slat (usec): min=25, max=16109, avg=247.18, stdev=786.02 clat (msec): min=114, max=1868, avg=989.05, stdev=259.45 lat (msec): min=114, max=1868, avg=989.31, stdev=259.48 clat percentiles (msec): | 1.00th=[ 481], 5.00th=[ 609], 10.00th=[ 667], 20.00th=[ 768], | 30.00th=[ 835], 40.00th=[ 902], 50.00th=[ 961], 60.00th=[ 1028], | 70.00th=[ 1116], 80.00th=[ 1217], 90.00th=[ 1351], 95.00th=[ 1485], | 99.00th=[ 1636], 99.50th=[ 1653], 99.90th=[ 1854], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 7, max= 102, per=25.17%, avg=44.05, stdev=19.23, samples=234 iops : min= 1, max= 25, avg=10.53, stdev= 4.82, samples=234 lat (msec) : 10=0.08%, 50=0.08%, 100=0.04%, 250=0.98%, 500=30.51% lat (msec) : 750=25.43%, 1000=20.39%, 2000=22.50% cpu : usr=0.08%, sys=0.59%, ctx=4160, 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=145409: Sat Sep 12 22:54:31 2026 read: IOPS=10, BW=42.0KiB/s (43.0kB/s)(4984KiB/118606msec) slat (usec): min=3149, max=86002, avg=15798.76, stdev=8908.26 clat (msec): min=28, max=1189, avg=459.98, stdev=122.09 lat (msec): min=42, max=1200, avg=475.78, stdev=123.18 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 288], 10.00th=[ 326], 20.00th=[ 363], | 30.00th=[ 397], 40.00th=[ 422], 50.00th=[ 447], 60.00th=[ 477], | 70.00th=[ 510], 80.00th=[ 558], 90.00th=[ 625], 95.00th=[ 659], | 99.00th=[ 768], 99.50th=[ 852], 99.90th=[ 927], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 7, max= 96, per=25.16%, avg=42.26, stdev=20.59, samples=232 iops : min= 1, max= 24, avg=10.09, stdev= 5.17, samples=232 write: IOPS=11, BW=44.3KiB/s (45.4kB/s)(5256KiB/118606msec); 0 zone resets slat (usec): min=26, max=26078, avg=348.19, stdev=1349.76 clat (msec): min=186, max=1955, avg=989.39, stdev=263.99 lat (msec): min=189, max=1956, avg=989.74, stdev=263.98 clat percentiles (msec): | 1.00th=[ 485], 5.00th=[ 609], 10.00th=[ 684], 20.00th=[ 760], | 30.00th=[ 835], 40.00th=[ 894], 50.00th=[ 961], 60.00th=[ 1028], | 70.00th=[ 1116], 80.00th=[ 1217], 90.00th=[ 1351], 95.00th=[ 1502], | 99.00th=[ 1670], 99.50th=[ 1737], 99.90th=[ 1838], 99.95th=[ 1955], | 99.99th=[ 1955] bw ( KiB/s): min= 7, max= 111, per=25.22%, avg=44.13, stdev=19.33, samples=232 iops : min= 1, max= 27, avg=10.56, stdev= 4.85, samples=232 lat (msec) : 50=0.04%, 100=0.31%, 250=1.05%, 500=31.76%, 750=24.53% lat (msec) : 1000=19.57%, 2000=22.73% cpu : usr=0.08%, sys=0.61%, ctx=4546, 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=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=145410: Sat Sep 12 22:54:31 2026 read: IOPS=10, BW=42.5KiB/s (43.6kB/s)(5060KiB/118918msec) slat (usec): min=2883, max=71687, avg=16087.13, stdev=9268.23 clat (msec): min=56, max=1153, avg=462.15, stdev=121.19 lat (msec): min=70, max=1175, avg=478.24, stdev=122.78 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 288], 10.00th=[ 326], 20.00th=[ 363], | 30.00th=[ 397], 40.00th=[ 422], 50.00th=[ 451], 60.00th=[ 481], | 70.00th=[ 514], 80.00th=[ 558], 90.00th=[ 625], 95.00th=[ 676], | 99.00th=[ 793], 99.50th=[ 835], 99.90th=[ 969], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 5, max= 112, per=25.37%, avg=42.63, stdev=21.07, samples=233 iops : min= 1, max= 28, avg=10.18, stdev= 5.30, samples=233 write: IOPS=10, BW=43.6KiB/s (44.6kB/s)(5180KiB/118918msec); 0 zone resets slat (usec): min=23, max=22621, avg=248.48, stdev=931.68 clat (msec): min=357, max=1970, avg=998.98, stdev=273.20 lat (msec): min=358, max=1970, avg=999.23, stdev=273.20 clat percentiles (msec): | 1.00th=[ 485], 5.00th=[ 600], 10.00th=[ 667], 20.00th=[ 768], | 30.00th=[ 835], 40.00th=[ 902], 50.00th=[ 961], 60.00th=[ 1028], | 70.00th=[ 1133], 80.00th=[ 1217], 90.00th=[ 1368], 95.00th=[ 1519], | 99.00th=[ 1687], 99.50th=[ 1754], 99.90th=[ 1972], 99.95th=[ 1972], | 99.99th=[ 1972] bw ( KiB/s): min= 7, max= 127, per=24.69%, avg=43.20, stdev=20.31, samples=234 iops : min= 1, max= 31, avg=10.32, stdev= 5.09, samples=234 lat (msec) : 100=0.31%, 250=0.90%, 500=31.95%, 750=24.34%, 1000=20.66% lat (msec) : 2000=21.84% cpu : usr=0.10%, sys=0.58%, ctx=4202, 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=169KiB/s (173kB/s), 41.8KiB/s-42.8KiB/s (42.8kB/s-43.8kB/s), io=19.6MiB (20.5MB), run=118050-119054msec WRITE: bw=175KiB/s (180kB/s), 43.6KiB/s-44.3KiB/s (44.6kB/s-45.4kB/s), io=20.4MiB (21.4MB), run=118050-119054msec 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=145431: Sat Sep 12 22:54:42 2026 read: IOPS=1, BW=67.2MiB/s (70.5MB/s)(40.0MiB/595msec) slat (nsec): min=25098k, max=25098k, avg=25097924.00, stdev= 0.00 clat (nsec): min=542967k, max=542967k, avg=542966653.00, stdev= 0.00 lat (nsec): min=568069k, max=568069k, avg=568069115.00, 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=2.19%, ctx=43, 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=67.2MiB/s (70.5MB/s), 67.2MiB/s-67.2MiB/s (70.5MB/s-70.5MB/s), io=40.0MiB (41.9MB), run=595-595msec 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