== sanity test 398c: run fio to test AIO ================= 23:12:51 (1789182771) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.461046 s, 91.0 MB/s osc.lustre-OST0000-osc-ffff8ccf6cb7e000.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=179746: Fri Sep 11 23:13:27 2026 write: IOPS=99, BW=399KiB/s (409kB/s)(10.0MiB/25652msec); 0 zone resets slat (usec): min=29, max=18853, avg=158.95, stdev=655.94 clat (msec): min=20, max=325, avg=159.51, stdev=42.02 lat (msec): min=22, max=325, avg=159.67, stdev=42.02 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 108], 10.00th=[ 117], 20.00th=[ 128], | 30.00th=[ 136], 40.00th=[ 142], 50.00th=[ 148], 60.00th=[ 161], | 70.00th=[ 176], 80.00th=[ 192], 90.00th=[ 218], 95.00th=[ 247], | 99.00th=[ 300], 99.50th=[ 313], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 240, max= 520, per=24.84%, avg=396.22, stdev=79.44, samples=50 iops : min= 60, max= 130, avg=98.72, stdev=19.83, samples=50 lat (msec) : 50=0.08%, 100=3.59%, 250=91.99%, 500=4.34% cpu : usr=0.18%, sys=0.83%, ctx=2893, 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=179747: Fri Sep 11 23:13:27 2026 write: IOPS=99, BW=399KiB/s (409kB/s)(10.0MiB/25663msec); 0 zone resets slat (usec): min=22, max=15052, avg=125.12, stdev=439.87 clat (msec): min=18, max=317, avg=159.60, stdev=42.07 lat (msec): min=19, max=317, avg=159.73, stdev=42.08 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 108], 10.00th=[ 118], 20.00th=[ 127], | 30.00th=[ 136], 40.00th=[ 142], 50.00th=[ 150], 60.00th=[ 159], | 70.00th=[ 171], 80.00th=[ 190], 90.00th=[ 220], 95.00th=[ 247], | 99.00th=[ 305], 99.50th=[ 317], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 256, max= 520, per=24.82%, avg=395.84, stdev=78.70, samples=50 iops : min= 64, max= 130, avg=98.64, stdev=19.71, samples=50 lat (msec) : 20=0.04%, 50=0.04%, 100=3.28%, 250=92.38%, 500=4.26% cpu : usr=0.21%, sys=0.79%, ctx=1969, 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=179748: Fri Sep 11 23:13:27 2026 write: IOPS=99, BW=399KiB/s (409kB/s)(10.0MiB/25668msec); 0 zone resets slat (usec): min=22, max=16612, avg=161.23, stdev=663.41 clat (msec): min=11, max=326, avg=159.48, stdev=41.91 lat (msec): min=14, max=326, avg=159.64, stdev=41.93 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 108], 10.00th=[ 121], 20.00th=[ 127], | 30.00th=[ 136], 40.00th=[ 142], 50.00th=[ 150], 60.00th=[ 161], | 70.00th=[ 176], 80.00th=[ 190], 90.00th=[ 215], 95.00th=[ 247], | 99.00th=[ 284], 99.50th=[ 321], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 256, max= 512, per=24.66%, avg=393.36, stdev=72.41, samples=50 iops : min= 64, max= 128, avg=98.00, stdev=18.05, samples=50 lat (msec) : 20=0.04%, 50=0.23%, 100=2.89%, 250=92.50%, 500=4.34% cpu : usr=0.16%, sys=0.81%, ctx=2488, 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=179749: Fri Sep 11 23:13:27 2026 write: IOPS=100, BW=400KiB/s (410kB/s)(10.0MiB/25580msec); 0 zone resets slat (usec): min=31, max=14636, avg=182.63, stdev=682.48 clat (msec): min=22, max=327, avg=159.50, stdev=41.97 lat (msec): min=22, max=327, avg=159.69, stdev=41.96 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 109], 10.00th=[ 117], 20.00th=[ 129], | 30.00th=[ 136], 40.00th=[ 142], 50.00th=[ 150], 60.00th=[ 159], | 70.00th=[ 174], 80.00th=[ 192], 90.00th=[ 218], 95.00th=[ 249], | 99.00th=[ 279], 99.50th=[ 313], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 256, max= 578, per=24.96%, avg=398.04, stdev=76.43, samples=50 iops : min= 64, max= 144, avg=99.16, stdev=19.09, samples=50 lat (msec) : 50=0.20%, 100=2.77%, 250=92.50%, 500=4.53% cpu : usr=0.25%, sys=1.16%, ctx=3291, 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=1596KiB/s (1634kB/s), 399KiB/s-400KiB/s (409kB/s-410kB/s), io=40.0MiB (41.9MB), run=25580-25668msec 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=179763: Fri Sep 11 23:14:03 2026 read: IOPS=44, BW=180KiB/s (184kB/s)(5048KiB/28047msec) slat (usec): min=2089, max=53981, avg=12699.89, stdev=7525.72 clat (msec): min=23, max=342, avg=163.76, stdev=43.84 lat (msec): min=34, max=366, avg=176.46, stdev=45.53 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 97], 10.00th=[ 110], 20.00th=[ 128], | 30.00th=[ 140], 40.00th=[ 153], 50.00th=[ 161], 60.00th=[ 171], | 70.00th=[ 184], 80.00th=[ 199], 90.00th=[ 220], 95.00th=[ 241], | 99.00th=[ 279], 99.50th=[ 305], 99.90th=[ 338], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 68, max= 303, per=25.07%, avg=179.27, stdev=51.38, samples=55 iops : min= 17, max= 75, avg=44.36, stdev=12.83, samples=55 write: IOPS=46, BW=185KiB/s (190kB/s)(5192KiB/28047msec); 0 zone resets slat (usec): min=23, max=12126, avg=215.41, stdev=789.02 clat (msec): min=45, max=324, avg=171.41, stdev=41.28 lat (msec): min=45, max=324, avg=171.62, stdev=41.28 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 110], 10.00th=[ 121], 20.00th=[ 136], | 30.00th=[ 146], 40.00th=[ 159], 50.00th=[ 169], 60.00th=[ 180], | 70.00th=[ 190], 80.00th=[ 203], 90.00th=[ 228], 95.00th=[ 245], | 99.00th=[ 284], 99.50th=[ 296], 99.90th=[ 317], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 45, max= 338, per=24.84%, avg=184.84, stdev=40.84, samples=55 iops : min= 11, max= 84, avg=45.76, stdev=10.20, samples=55 lat (msec) : 50=0.20%, 100=3.63%, 250=92.34%, 500=3.83% cpu : usr=0.21%, sys=2.09%, ctx=4532, 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=179764: Fri Sep 11 23:14:03 2026 read: IOPS=44, BW=178KiB/s (183kB/s)(4976KiB/27919msec) slat (usec): min=2487, max=68992, avg=12515.53, stdev=7165.13 clat (msec): min=11, max=370, avg=166.53, stdev=47.41 lat (msec): min=20, max=403, avg=179.05, stdev=48.94 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 96], 10.00th=[ 109], 20.00th=[ 127], | 30.00th=[ 142], 40.00th=[ 153], 50.00th=[ 163], 60.00th=[ 174], | 70.00th=[ 188], 80.00th=[ 203], 90.00th=[ 228], 95.00th=[ 251], | 99.00th=[ 296], 99.50th=[ 326], 99.90th=[ 359], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 68, max= 299, per=24.88%, avg=177.93, stdev=44.31, samples=55 iops : min= 17, max= 74, avg=44.02, stdev=11.06, samples=55 write: IOPS=47, BW=189KiB/s (193kB/s)(5264KiB/27919msec); 0 zone resets slat (usec): min=27, max=13166, avg=200.67, stdev=583.48 clat (msec): min=24, max=338, avg=167.96, stdev=42.11 lat (msec): min=24, max=338, avg=168.16, stdev=42.13 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 107], 10.00th=[ 118], 20.00th=[ 133], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 163], 60.00th=[ 174], | 70.00th=[ 188], 80.00th=[ 201], 90.00th=[ 222], 95.00th=[ 245], | 99.00th=[ 288], 99.50th=[ 300], 99.90th=[ 330], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 103, max= 318, per=25.37%, avg=188.76, stdev=47.92, samples=55 iops : min= 25, max= 79, avg=46.71, stdev=11.97, samples=55 lat (msec) : 20=0.04%, 50=0.12%, 100=4.65%, 250=90.51%, 500=4.69% cpu : usr=0.28%, sys=1.79%, ctx=4412, 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=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=179765: Fri Sep 11 23:14:03 2026 read: IOPS=44, BW=178KiB/s (183kB/s)(4984KiB/27939msec) slat (usec): min=38, max=63002, avg=12498.67, stdev=7296.56 clat (msec): min=11, max=343, avg=164.25, stdev=44.98 lat (msec): min=30, max=361, avg=176.76, stdev=46.46 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 96], 10.00th=[ 109], 20.00th=[ 125], | 30.00th=[ 138], 40.00th=[ 150], 50.00th=[ 163], 60.00th=[ 176], | 70.00th=[ 186], 80.00th=[ 201], 90.00th=[ 220], 95.00th=[ 243], | 99.00th=[ 292], 99.50th=[ 317], 99.90th=[ 326], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 95, max= 295, per=25.00%, avg=178.76, stdev=47.70, samples=55 iops : min= 23, max= 73, avg=44.22, stdev=11.93, samples=55 write: IOPS=47, BW=188KiB/s (193kB/s)(5256KiB/27939msec); 0 zone resets slat (usec): min=26, max=17585, avg=253.51, stdev=869.75 clat (msec): min=21, max=356, avg=171.75, stdev=45.05 lat (msec): min=21, max=356, avg=172.01, stdev=45.03 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 108], 10.00th=[ 121], 20.00th=[ 136], | 30.00th=[ 146], 40.00th=[ 159], 50.00th=[ 169], 60.00th=[ 180], | 70.00th=[ 190], 80.00th=[ 205], 90.00th=[ 230], 95.00th=[ 255], | 99.00th=[ 305], 99.50th=[ 330], 99.90th=[ 342], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 111, max= 299, per=25.21%, avg=187.55, stdev=44.65, samples=55 iops : min= 27, max= 74, avg=46.45, stdev=11.13, samples=55 lat (msec) : 20=0.04%, 50=0.16%, 100=4.61%, 250=90.47%, 500=4.73% cpu : usr=0.33%, sys=1.97%, ctx=4452, 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=179766: Fri Sep 11 23:14:03 2026 read: IOPS=45, BW=180KiB/s (185kB/s)(5060KiB/28048msec) slat (usec): min=2083, max=47957, avg=12692.25, stdev=7021.69 clat (msec): min=76, max=332, avg=164.89, stdev=41.48 lat (msec): min=81, max=344, avg=177.58, stdev=43.16 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 102], 10.00th=[ 113], 20.00th=[ 130], | 30.00th=[ 142], 40.00th=[ 153], 50.00th=[ 163], 60.00th=[ 174], | 70.00th=[ 186], 80.00th=[ 199], 90.00th=[ 218], 95.00th=[ 241], | 99.00th=[ 271], 99.50th=[ 288], 99.90th=[ 326], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 53, max= 275, per=25.14%, avg=179.78, stdev=43.22, samples=55 iops : min= 13, max= 68, avg=44.49, stdev=10.80, samples=55 write: IOPS=46, BW=185KiB/s (189kB/s)(5180KiB/28048msec); 0 zone resets slat (usec): min=33, max=18220, avg=178.95, stdev=636.56 clat (msec): min=64, max=352, avg=170.30, stdev=40.01 lat (msec): min=64, max=353, avg=170.48, stdev=40.07 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 110], 10.00th=[ 121], 20.00th=[ 134], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 169], 60.00th=[ 180], | 70.00th=[ 190], 80.00th=[ 203], 90.00th=[ 222], 95.00th=[ 239], | 99.00th=[ 279], 99.50th=[ 300], 99.90th=[ 338], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 53, max= 299, per=24.68%, avg=183.64, stdev=42.67, samples=55 iops : min= 13, max= 74, avg=45.44, stdev=10.63, samples=55 lat (msec) : 100=3.48%, 250=93.52%, 500=3.01% cpu : usr=0.27%, sys=1.88%, ctx=4662, 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=715KiB/s (733kB/s), 178KiB/s-180KiB/s (183kB/s-185kB/s), io=19.6MiB (20.5MB), run=27919-28048msec WRITE: bw=745KiB/s (763kB/s), 185KiB/s-189KiB/s (189kB/s-193kB/s), io=20.4MiB (21.4MB), run=27919-28048msec 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=179775: Fri Sep 11 23:14:13 2026 read: IOPS=2, BW=81.6MiB/s (85.6MB/s)(40.0MiB/490msec) slat (nsec): min=41999k, max=41999k, avg=41999287.00, stdev= 0.00 clat (nsec): min=419910k, max=419910k, avg=419910040.00, stdev= 0.00 lat (nsec): min=461914k, max=461914k, avg=461914000.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 422], 10.00th=[ 422], 20.00th=[ 422], | 30.00th=[ 422], 40.00th=[ 422], 50.00th=[ 422], 60.00th=[ 422], | 70.00th=[ 422], 80.00th=[ 422], 90.00th=[ 422], 95.00th=[ 422], | 99.00th=[ 422], 99.50th=[ 422], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] lat (msec) : 500=100.00% cpu : usr=0.20%, sys=2.25%, ctx=8, 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=81.6MiB/s (85.6MB/s), 81.6MiB/s-81.6MiB/s (85.6MB/s-85.6MB/s), io=40.0MiB (41.9MB), run=490-490msec 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