== sanity test 398c: run fio to test AIO ================= 06:10:30 (1789294230) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.375148 s, 112 MB/s osc.lustre-OST0000-osc-ffff924bb8b54800.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=179866: Sun Sep 13 06:11:03 2026 write: IOPS=105, BW=421KiB/s (431kB/s)(10.0MiB/24333msec); 0 zone resets slat (usec): min=23, max=11604, avg=180.82, stdev=669.63 clat (msec): min=18, max=303, avg=151.19, stdev=34.68 lat (msec): min=18, max=303, avg=151.37, stdev=34.69 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 106], 10.00th=[ 112], 20.00th=[ 124], | 30.00th=[ 130], 40.00th=[ 138], 50.00th=[ 146], 60.00th=[ 155], | 70.00th=[ 165], 80.00th=[ 180], 90.00th=[ 201], 95.00th=[ 220], | 99.00th=[ 245], 99.50th=[ 259], 99.90th=[ 292], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 256, max= 598, per=25.07%, avg=421.23, stdev=68.67, samples=48 iops : min= 64, max= 149, avg=104.88, stdev=17.20, samples=48 lat (msec) : 20=0.04%, 50=0.16%, 100=2.81%, 250=96.21%, 500=0.78% cpu : usr=0.26%, sys=1.06%, ctx=2839, 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=179867: Sun Sep 13 06:11:03 2026 write: IOPS=105, BW=420KiB/s (430kB/s)(10.0MiB/24374msec); 0 zone resets slat (usec): min=21, max=13049, avg=160.09, stdev=651.84 clat (msec): min=15, max=291, avg=151.17, stdev=34.82 lat (msec): min=16, max=291, avg=151.34, stdev=34.84 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 107], 10.00th=[ 112], 20.00th=[ 124], | 30.00th=[ 130], 40.00th=[ 138], 50.00th=[ 146], 60.00th=[ 157], | 70.00th=[ 169], 80.00th=[ 180], 90.00th=[ 201], 95.00th=[ 215], | 99.00th=[ 245], 99.50th=[ 292], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 230, max= 608, per=24.96%, avg=419.25, stdev=82.51, samples=48 iops : min= 57, max= 152, avg=104.42, stdev=20.68, samples=48 lat (msec) : 20=0.04%, 50=0.04%, 100=3.20%, 250=96.09%, 500=0.62% cpu : usr=0.19%, sys=0.91%, ctx=1858, 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=179868: Sun Sep 13 06:11:03 2026 write: IOPS=105, BW=421KiB/s (432kB/s)(10.0MiB/24297msec); 0 zone resets slat (usec): min=25, max=13782, avg=160.02, stdev=566.05 clat (msec): min=25, max=322, avg=151.50, stdev=34.95 lat (msec): min=25, max=322, avg=151.66, stdev=34.96 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 106], 10.00th=[ 112], 20.00th=[ 123], | 30.00th=[ 132], 40.00th=[ 138], 50.00th=[ 146], 60.00th=[ 155], | 70.00th=[ 165], 80.00th=[ 182], 90.00th=[ 201], 95.00th=[ 215], | 99.00th=[ 251], 99.50th=[ 251], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 302, max= 608, per=25.07%, avg=421.10, stdev=69.78, samples=48 iops : min= 75, max= 152, avg=104.85, stdev=17.50, samples=48 lat (msec) : 50=0.08%, 100=2.50%, 250=96.88%, 500=0.55% cpu : usr=0.19%, sys=0.88%, ctx=2624, 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=179869: Sun Sep 13 06:11:03 2026 write: IOPS=105, BW=421KiB/s (431kB/s)(10.0MiB/24347msec); 0 zone resets slat (usec): min=21, max=11372, avg=183.15, stdev=650.89 clat (msec): min=12, max=311, avg=151.03, stdev=34.77 lat (msec): min=13, max=311, avg=151.21, stdev=34.77 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 103], 10.00th=[ 112], 20.00th=[ 124], | 30.00th=[ 129], 40.00th=[ 138], 50.00th=[ 146], 60.00th=[ 155], | 70.00th=[ 165], 80.00th=[ 180], 90.00th=[ 199], 95.00th=[ 218], | 99.00th=[ 243], 99.50th=[ 249], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 313] bw ( KiB/s): min= 253, max= 566, per=25.08%, avg=421.40, stdev=70.67, samples=48 iops : min= 63, max= 141, avg=104.94, stdev=17.68, samples=48 lat (msec) : 20=0.04%, 50=0.08%, 100=3.67%, 250=95.74%, 500=0.47% cpu : usr=0.23%, sys=1.00%, ctx=2785, 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=1680KiB/s (1721kB/s), 420KiB/s-421KiB/s (430kB/s-432kB/s), io=40.0MiB (41.9MB), run=24297-24374msec 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=179883: Sun Sep 13 06:11:38 2026 read: IOPS=46, BW=188KiB/s (192kB/s)(5048KiB/26915msec) slat (usec): min=2024, max=56660, avg=11838.19, stdev=7211.30 clat (msec): min=15, max=323, avg=158.23, stdev=46.15 lat (msec): min=41, max=351, avg=170.07, stdev=48.40 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 91], 10.00th=[ 102], 20.00th=[ 118], | 30.00th=[ 133], 40.00th=[ 144], 50.00th=[ 155], 60.00th=[ 165], | 70.00th=[ 178], 80.00th=[ 194], 90.00th=[ 220], 95.00th=[ 241], | 99.00th=[ 305], 99.50th=[ 309], 99.90th=[ 321], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 103, max= 316, per=25.10%, avg=186.98, stdev=45.04, samples=53 iops : min= 25, max= 79, avg=46.38, stdev=11.38, samples=53 write: IOPS=48, BW=193KiB/s (198kB/s)(5192KiB/26915msec); 0 zone resets slat (usec): min=22, max=8130, avg=156.55, stdev=444.31 clat (msec): min=40, max=344, avg=163.95, stdev=44.07 lat (msec): min=40, max=345, avg=164.11, stdev=44.09 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 96], 10.00th=[ 108], 20.00th=[ 129], | 30.00th=[ 140], 40.00th=[ 150], 50.00th=[ 161], 60.00th=[ 171], | 70.00th=[ 184], 80.00th=[ 201], 90.00th=[ 226], 95.00th=[ 243], | 99.00th=[ 279], 99.50th=[ 296], 99.90th=[ 330], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 71, max= 288, per=24.87%, avg=192.77, stdev=45.11, samples=53 iops : min= 17, max= 72, avg=47.79, stdev=11.36, samples=53 lat (msec) : 20=0.04%, 50=0.04%, 100=8.12%, 250=88.16%, 500=3.63% cpu : usr=0.22%, sys=1.64%, ctx=4105, 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=179884: Sun Sep 13 06:11:38 2026 read: IOPS=46, BW=186KiB/s (190kB/s)(4976KiB/26772msec) slat (usec): min=2317, max=58526, avg=11962.52, stdev=7262.68 clat (msec): min=29, max=317, avg=157.74, stdev=44.88 lat (msec): min=36, max=341, avg=169.71, stdev=47.17 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 92], 10.00th=[ 103], 20.00th=[ 117], | 30.00th=[ 132], 40.00th=[ 142], 50.00th=[ 155], 60.00th=[ 167], | 70.00th=[ 178], 80.00th=[ 194], 90.00th=[ 222], 95.00th=[ 239], | 99.00th=[ 275], 99.50th=[ 292], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 96, max= 288, per=24.82%, avg=184.92, stdev=47.63, samples=53 iops : min= 24, max= 72, avg=45.85, stdev=12.02, samples=53 write: IOPS=49, BW=197KiB/s (201kB/s)(5264KiB/26772msec); 0 zone resets slat (usec): min=25, max=13371, avg=177.46, stdev=696.06 clat (msec): min=76, max=330, avg=163.20, stdev=45.77 lat (msec): min=76, max=331, avg=163.38, stdev=45.79 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 95], 10.00th=[ 105], 20.00th=[ 124], | 30.00th=[ 138], 40.00th=[ 148], 50.00th=[ 159], 60.00th=[ 171], | 70.00th=[ 184], 80.00th=[ 201], 90.00th=[ 226], 95.00th=[ 251], | 99.00th=[ 279], 99.50th=[ 292], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 112, max= 355, per=25.32%, avg=196.26, stdev=50.23, samples=53 iops : min= 28, max= 88, avg=48.70, stdev=12.60, samples=53 lat (msec) : 50=0.04%, 100=8.40%, 250=87.30%, 500=4.26% cpu : usr=0.24%, sys=1.77%, ctx=4288, 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=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=179885: Sun Sep 13 06:11:38 2026 read: IOPS=46, BW=186KiB/s (190kB/s)(4984KiB/26837msec) slat (usec): min=35, max=62892, avg=12036.93, stdev=7384.40 clat (msec): min=12, max=333, avg=158.13, stdev=47.35 lat (msec): min=13, max=362, avg=170.17, stdev=49.57 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 90], 10.00th=[ 102], 20.00th=[ 117], | 30.00th=[ 131], 40.00th=[ 142], 50.00th=[ 155], 60.00th=[ 167], | 70.00th=[ 180], 80.00th=[ 194], 90.00th=[ 220], 95.00th=[ 247], | 99.00th=[ 292], 99.50th=[ 309], 99.90th=[ 330], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 109, max= 308, per=24.95%, avg=185.89, stdev=43.83, samples=53 iops : min= 27, max= 77, avg=46.13, stdev=11.04, samples=53 write: IOPS=48, BW=196KiB/s (201kB/s)(5256KiB/26837msec); 0 zone resets slat (usec): min=29, max=14755, avg=194.74, stdev=763.54 clat (msec): min=38, max=340, avg=164.84, stdev=46.07 lat (msec): min=38, max=340, avg=165.03, stdev=46.07 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 94], 10.00th=[ 108], 20.00th=[ 126], | 30.00th=[ 140], 40.00th=[ 150], 50.00th=[ 163], 60.00th=[ 171], | 70.00th=[ 186], 80.00th=[ 201], 90.00th=[ 224], 95.00th=[ 247], | 99.00th=[ 292], 99.50th=[ 313], 99.90th=[ 338], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 87, max= 336, per=25.17%, avg=195.06, stdev=51.02, samples=53 iops : min= 21, max= 84, avg=48.42, stdev=12.89, samples=53 lat (msec) : 20=0.04%, 50=0.16%, 100=7.85%, 250=87.30%, 500=4.65% cpu : usr=0.23%, sys=1.75%, ctx=4466, 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=179886: Sun Sep 13 06:11:38 2026 read: IOPS=46, BW=188KiB/s (192kB/s)(5060KiB/26926msec) slat (usec): min=2099, max=71147, avg=11834.89, stdev=7159.70 clat (msec): min=35, max=323, avg=156.75, stdev=44.44 lat (msec): min=38, max=341, avg=168.59, stdev=46.78 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 93], 10.00th=[ 102], 20.00th=[ 118], | 30.00th=[ 131], 40.00th=[ 142], 50.00th=[ 150], 60.00th=[ 163], | 70.00th=[ 180], 80.00th=[ 194], 90.00th=[ 218], 95.00th=[ 236], | 99.00th=[ 275], 99.50th=[ 296], 99.90th=[ 321], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 87, max= 324, per=25.14%, avg=187.26, stdev=47.61, samples=53 iops : min= 21, max= 81, avg=46.47, stdev=11.96, samples=53 write: IOPS=48, BW=192KiB/s (197kB/s)(5180KiB/26926msec); 0 zone resets slat (usec): min=25, max=10625, avg=170.59, stdev=600.66 clat (msec): min=74, max=311, avg=165.28, stdev=46.35 lat (msec): min=74, max=311, avg=165.45, stdev=46.34 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 95], 10.00th=[ 105], 20.00th=[ 125], | 30.00th=[ 138], 40.00th=[ 150], 50.00th=[ 163], 60.00th=[ 176], | 70.00th=[ 190], 80.00th=[ 205], 90.00th=[ 226], 95.00th=[ 247], | 99.00th=[ 288], 99.50th=[ 296], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 103, max= 296, per=24.70%, avg=191.45, stdev=46.57, samples=53 iops : min= 25, max= 74, avg=47.49, stdev=11.78, samples=53 lat (msec) : 50=0.04%, 100=8.12%, 250=88.32%, 500=3.52% cpu : usr=0.29%, sys=1.73%, ctx=3874, 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=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=745KiB/s (763kB/s), 186KiB/s-188KiB/s (190kB/s-192kB/s), io=19.6MiB (20.5MB), run=26772-26926msec WRITE: bw=776KiB/s (795kB/s), 192KiB/s-197KiB/s (197kB/s-201kB/s), io=20.4MiB (21.4MB), run=26772-26926msec 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=179895: Sun Sep 13 06:11:48 2026 read: IOPS=2, BW=85.7MiB/s (89.8MB/s)(40.0MiB/467msec) slat (nsec): min=36124k, max=36124k, avg=36124423.00, stdev= 0.00 clat (nsec): min=415600k, max=415600k, avg=415599833.00, stdev= 0.00 lat (nsec): min=451729k, max=451729k, avg=451729409.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 418], 10.00th=[ 418], 20.00th=[ 418], | 30.00th=[ 418], 40.00th=[ 418], 50.00th=[ 418], 60.00th=[ 418], | 70.00th=[ 418], 80.00th=[ 418], 90.00th=[ 418], 95.00th=[ 418], | 99.00th=[ 418], 99.50th=[ 418], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 418] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.36%, ctx=7, 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=85.7MiB/s (89.8MB/s), 85.7MiB/s-85.7MiB/s (89.8MB/s-89.8MB/s), io=40.0MiB (41.9MB), run=467-467msec 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