== sanity test 398c: run fio to test AIO ================= 10:13:16 (1788876796) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.352158 s, 119 MB/s osc.lustre-OST0000-osc-ffff9c0550c27000.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=180296: Tue Sep 8 10:13:50 2026 write: IOPS=98, BW=394KiB/s (403kB/s)(10.0MiB/26020msec); 0 zone resets slat (usec): min=33, max=11267, avg=269.96, stdev=685.41 clat (msec): min=37, max=272, avg=162.19, stdev=34.09 lat (msec): min=37, max=272, avg=162.46, stdev=34.08 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 110], 10.00th=[ 123], 20.00th=[ 136], | 30.00th=[ 144], 40.00th=[ 155], 50.00th=[ 161], 60.00th=[ 169], | 70.00th=[ 180], 80.00th=[ 192], 90.00th=[ 209], 95.00th=[ 220], | 99.00th=[ 247], 99.50th=[ 251], 99.90th=[ 262], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 271, max= 596, per=24.94%, avg=391.57, stdev=65.65, samples=51 iops : min= 67, max= 149, avg=97.41, stdev=16.51, samples=51 lat (msec) : 50=0.04%, 100=3.40%, 250=96.02%, 500=0.55% cpu : usr=0.22%, sys=1.21%, ctx=2825, majf=0, minf=8 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=180297: Tue Sep 8 10:13:50 2026 write: IOPS=98, BW=393KiB/s (402kB/s)(10.0MiB/26073msec); 0 zone resets slat (usec): min=30, max=7948, avg=265.44, stdev=649.09 clat (msec): min=49, max=276, avg=161.65, stdev=34.21 lat (msec): min=50, max=276, avg=161.92, stdev=34.22 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 110], 10.00th=[ 122], 20.00th=[ 133], | 30.00th=[ 146], 40.00th=[ 155], 50.00th=[ 161], 60.00th=[ 167], | 70.00th=[ 180], 80.00th=[ 188], 90.00th=[ 207], 95.00th=[ 220], | 99.00th=[ 249], 99.50th=[ 271], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 254, max= 510, per=24.78%, avg=389.08, stdev=64.66, samples=51 iops : min= 63, max= 127, avg=96.78, stdev=16.23, samples=51 lat (msec) : 50=0.04%, 100=3.48%, 250=95.59%, 500=0.90% cpu : usr=0.21%, sys=1.22%, ctx=2780, majf=0, minf=8 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=180298: Tue Sep 8 10:13:50 2026 write: IOPS=98, BW=393KiB/s (402kB/s)(10.0MiB/26060msec); 0 zone resets slat (usec): min=32, max=11029, avg=297.55, stdev=714.01 clat (msec): min=34, max=265, avg=162.17, stdev=33.71 lat (msec): min=35, max=268, avg=162.47, stdev=33.72 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 111], 10.00th=[ 122], 20.00th=[ 136], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 161], 60.00th=[ 169], | 70.00th=[ 178], 80.00th=[ 192], 90.00th=[ 207], 95.00th=[ 220], | 99.00th=[ 245], 99.50th=[ 249], 99.90th=[ 264], 99.95th=[ 264], | 99.99th=[ 266] bw ( KiB/s): min= 255, max= 591, per=24.85%, avg=390.22, stdev=65.11, samples=51 iops : min= 63, max= 147, avg=97.06, stdev=16.34, samples=51 lat (msec) : 50=0.08%, 100=3.24%, 250=96.33%, 500=0.35% cpu : usr=0.25%, sys=1.27%, ctx=3056, 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=180299: Tue Sep 8 10:13:50 2026 write: IOPS=98, BW=393KiB/s (402kB/s)(10.0MiB/26070msec); 0 zone resets slat (usec): min=33, max=7066, avg=289.53, stdev=663.17 clat (msec): min=17, max=276, avg=161.67, stdev=34.78 lat (msec): min=17, max=276, avg=161.96, stdev=34.77 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 110], 10.00th=[ 121], 20.00th=[ 136], | 30.00th=[ 146], 40.00th=[ 155], 50.00th=[ 161], 60.00th=[ 169], | 70.00th=[ 178], 80.00th=[ 192], 90.00th=[ 205], 95.00th=[ 220], | 99.00th=[ 247], 99.50th=[ 259], 99.90th=[ 266], 99.95th=[ 268], | 99.99th=[ 275] bw ( KiB/s): min= 255, max= 542, per=24.80%, avg=389.29, stdev=66.14, samples=51 iops : min= 63, max= 135, avg=96.86, stdev=16.62, samples=51 lat (msec) : 20=0.08%, 50=0.20%, 100=3.67%, 250=95.20%, 500=0.86% cpu : usr=0.22%, sys=1.48%, ctx=2948, 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 Run status group 0 (all jobs): WRITE: bw=1571KiB/s (1609kB/s), 393KiB/s-394KiB/s (402kB/s-403kB/s), io=40.0MiB (41.9MB), run=26020-26073msec 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=180313: Tue Sep 8 10:14:25 2026 read: IOPS=44, BW=178KiB/s (182kB/s)(5048KiB/28407msec) slat (usec): min=3090, max=45580, avg=12411.59, stdev=5966.06 clat (msec): min=13, max=355, avg=167.21, stdev=35.12 lat (msec): min=26, max=376, avg=179.63, stdev=35.99 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 118], 10.00th=[ 127], 20.00th=[ 140], | 30.00th=[ 148], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 174], | 70.00th=[ 182], 80.00th=[ 194], 90.00th=[ 209], 95.00th=[ 226], | 99.00th=[ 275], 99.50th=[ 284], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 96, max= 247, per=25.01%, avg=176.57, stdev=28.76, samples=56 iops : min= 24, max= 61, avg=43.71, stdev= 7.15, samples=56 write: IOPS=45, BW=183KiB/s (187kB/s)(5192KiB/28407msec); 0 zone resets slat (usec): min=34, max=9226, avg=313.33, stdev=689.54 clat (msec): min=32, max=321, avg=172.54, stdev=34.26 lat (msec): min=32, max=323, avg=172.85, stdev=34.25 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 126], 10.00th=[ 134], 20.00th=[ 144], | 30.00th=[ 155], 40.00th=[ 163], 50.00th=[ 169], 60.00th=[ 178], | 70.00th=[ 186], 80.00th=[ 197], 90.00th=[ 215], 95.00th=[ 236], | 99.00th=[ 279], 99.50th=[ 300], 99.90th=[ 317], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 64, max= 272, per=24.78%, avg=182.11, stdev=40.40, samples=56 iops : min= 16, max= 68, avg=45.11, stdev=10.16, samples=56 lat (msec) : 20=0.04%, 50=0.23%, 100=0.39%, 250=96.95%, 500=2.38% cpu : usr=0.36%, sys=2.45%, ctx=4830, 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=180314: Tue Sep 8 10:14:25 2026 read: IOPS=44, BW=177KiB/s (181kB/s)(4976KiB/28185msec) slat (usec): min=3167, max=38577, avg=12136.37, stdev=5680.91 clat (msec): min=14, max=392, avg=167.87, stdev=36.28 lat (msec): min=23, max=406, avg=180.03, stdev=37.30 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 117], 10.00th=[ 128], 20.00th=[ 140], | 30.00th=[ 148], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 174], | 70.00th=[ 182], 80.00th=[ 192], 90.00th=[ 215], 95.00th=[ 232], | 99.00th=[ 271], 99.50th=[ 313], 99.90th=[ 372], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 103, max= 239, per=24.82%, avg=175.21, stdev=33.98, samples=56 iops : min= 25, max= 59, avg=43.36, stdev= 8.46, samples=56 write: IOPS=46, BW=187KiB/s (191kB/s)(5264KiB/28185msec); 0 zone resets slat (usec): min=35, max=11868, avg=341.09, stdev=820.98 clat (msec): min=58, max=391, avg=170.40, stdev=32.84 lat (msec): min=58, max=392, avg=170.75, stdev=32.86 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 125], 10.00th=[ 134], 20.00th=[ 144], | 30.00th=[ 153], 40.00th=[ 159], 50.00th=[ 167], 60.00th=[ 176], | 70.00th=[ 184], 80.00th=[ 194], 90.00th=[ 213], 95.00th=[ 230], | 99.00th=[ 257], 99.50th=[ 271], 99.90th=[ 351], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 103, max= 302, per=25.30%, avg=185.95, stdev=39.48, samples=56 iops : min= 25, max= 75, avg=46.09, stdev= 9.95, samples=56 lat (msec) : 20=0.04%, 50=0.08%, 100=0.78%, 250=97.30%, 500=1.80% cpu : usr=0.35%, sys=2.34%, ctx=4773, 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=180315: Tue Sep 8 10:14:25 2026 read: IOPS=43, BW=176KiB/s (180kB/s)(4984KiB/28367msec) slat (usec): min=2487, max=44757, avg=12324.91, stdev=5955.01 clat (msec): min=82, max=344, avg=167.39, stdev=34.57 lat (msec): min=94, max=358, avg=179.72, stdev=35.61 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 118], 10.00th=[ 128], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 157], 50.00th=[ 163], 60.00th=[ 174], | 70.00th=[ 182], 80.00th=[ 194], 90.00th=[ 213], 95.00th=[ 230], | 99.00th=[ 264], 99.50th=[ 275], 99.90th=[ 317], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 88, max= 255, per=24.93%, avg=175.98, stdev=33.89, samples=56 iops : min= 22, max= 63, avg=43.57, stdev= 8.46, samples=56 write: IOPS=46, BW=185KiB/s (190kB/s)(5256KiB/28367msec); 0 zone resets slat (usec): min=31, max=8870, avg=310.29, stdev=688.73 clat (msec): min=90, max=299, avg=171.91, stdev=32.10 lat (msec): min=91, max=300, avg=172.22, stdev=32.06 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 128], 10.00th=[ 136], 20.00th=[ 144], | 30.00th=[ 153], 40.00th=[ 161], 50.00th=[ 169], 60.00th=[ 178], | 70.00th=[ 186], 80.00th=[ 197], 90.00th=[ 218], 95.00th=[ 234], | 99.00th=[ 257], 99.50th=[ 266], 99.90th=[ 279], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 88, max= 280, per=25.11%, avg=184.59, stdev=41.72, samples=56 iops : min= 22, max= 70, avg=45.73, stdev=10.45, samples=56 lat (msec) : 100=0.51%, 250=97.66%, 500=1.84% cpu : usr=0.36%, sys=2.20%, ctx=4691, 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=180316: Tue Sep 8 10:14:25 2026 read: IOPS=44, BW=180KiB/s (184kB/s)(5060KiB/28156msec) slat (usec): min=34, max=44027, avg=12052.16, stdev=5444.49 clat (msec): min=49, max=403, avg=167.29, stdev=35.82 lat (msec): min=64, max=416, avg=179.36, stdev=36.90 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 121], 10.00th=[ 128], 20.00th=[ 138], | 30.00th=[ 146], 40.00th=[ 155], 50.00th=[ 163], 60.00th=[ 171], | 70.00th=[ 182], 80.00th=[ 192], 90.00th=[ 215], 95.00th=[ 234], | 99.00th=[ 275], 99.50th=[ 288], 99.90th=[ 351], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 110, max= 247, per=25.48%, avg=179.91, stdev=34.78, samples=55 iops : min= 27, max= 61, avg=44.56, stdev= 8.70, samples=55 write: IOPS=45, BW=184KiB/s (188kB/s)(5180KiB/28156msec); 0 zone resets slat (usec): min=35, max=12879, avg=311.52, stdev=776.16 clat (msec): min=44, max=424, avg=171.72, stdev=34.68 lat (msec): min=45, max=424, avg=172.03, stdev=34.70 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 124], 10.00th=[ 134], 20.00th=[ 144], | 30.00th=[ 155], 40.00th=[ 161], 50.00th=[ 169], 60.00th=[ 178], | 70.00th=[ 184], 80.00th=[ 197], 90.00th=[ 213], 95.00th=[ 234], | 99.00th=[ 268], 99.50th=[ 279], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 111, max= 288, per=25.02%, avg=183.87, stdev=36.97, samples=55 iops : min= 27, max= 72, avg=45.56, stdev= 9.27, samples=55 lat (msec) : 50=0.12%, 100=0.59%, 250=97.07%, 500=2.23% cpu : usr=0.35%, sys=2.25%, ctx=4530, 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=706KiB/s (723kB/s), 176KiB/s-180KiB/s (180kB/s-184kB/s), io=19.6MiB (20.5MB), run=28156-28407msec WRITE: bw=735KiB/s (753kB/s), 183KiB/s-187KiB/s (187kB/s-191kB/s), io=20.4MiB (21.4MB), run=28156-28407msec 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=180324: Tue Sep 8 10:14:34 2026 read: IOPS=2, BW=107MiB/s (112MB/s)(40.0MiB/375msec) slat (nsec): min=28334k, max=28334k, avg=28334108.00, stdev= 0.00 clat (nsec): min=326167k, max=326167k, avg=326167331.00, stdev= 0.00 lat (nsec): min=354507k, max=354507k, avg=354507047.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 326], 10.00th=[ 326], 20.00th=[ 326], | 30.00th=[ 326], 40.00th=[ 326], 50.00th=[ 326], 60.00th=[ 326], | 70.00th=[ 326], 80.00th=[ 326], 90.00th=[ 326], 95.00th=[ 326], | 99.00th=[ 326], 99.50th=[ 326], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.74%, ctx=8, 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=107MiB/s (112MB/s), 107MiB/s-107MiB/s (112MB/s-112MB/s), io=40.0MiB (41.9MB), run=375-375msec 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