== sanity test 398c: run fio to test AIO ================= 22:54:31 (1782615271) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.497536 s, 84.3 MB/s osc.lustre-OST0000-osc-ffff9e974f226800.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=179993: Sat Jun 27 22:55:12 2026 write: IOPS=86, BW=345KiB/s (354kB/s)(10.0MiB/29657msec); 0 zone resets slat (usec): min=35, max=27959, avg=296.82, stdev=1117.83 clat (msec): min=23, max=348, avg=184.47, stdev=46.65 lat (msec): min=23, max=348, avg=184.77, stdev=46.67 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 116], 10.00th=[ 136], 20.00th=[ 148], | 30.00th=[ 157], 40.00th=[ 169], 50.00th=[ 178], 60.00th=[ 186], | 70.00th=[ 199], 80.00th=[ 222], 90.00th=[ 253], 95.00th=[ 271], | 99.00th=[ 321], 99.50th=[ 334], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 198, max= 467, per=24.92%, avg=343.83, stdev=67.62, samples=58 iops : min= 49, max= 116, avg=85.59, stdev=16.93, samples=58 lat (msec) : 50=0.08%, 100=1.17%, 250=88.01%, 500=10.74% cpu : usr=0.20%, sys=0.97%, ctx=2277, 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=179994: Sat Jun 27 22:55:12 2026 write: IOPS=86, BW=346KiB/s (355kB/s)(10.0MiB/29553msec); 0 zone resets slat (usec): min=37, max=26766, avg=315.07, stdev=1049.86 clat (msec): min=29, max=372, avg=184.21, stdev=48.24 lat (msec): min=29, max=373, avg=184.53, stdev=48.24 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 118], 10.00th=[ 132], 20.00th=[ 144], | 30.00th=[ 159], 40.00th=[ 167], 50.00th=[ 178], 60.00th=[ 190], | 70.00th=[ 203], 80.00th=[ 222], 90.00th=[ 249], 95.00th=[ 275], | 99.00th=[ 321], 99.50th=[ 342], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 183, max= 551, per=25.07%, avg=345.97, stdev=73.17, samples=58 iops : min= 45, max= 137, avg=86.07, stdev=18.29, samples=58 lat (msec) : 50=0.04%, 100=1.84%, 250=88.95%, 500=9.18% cpu : usr=0.21%, sys=1.26%, ctx=2795, 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=179995: Sat Jun 27 22:55:12 2026 write: IOPS=86, BW=346KiB/s (354kB/s)(10.0MiB/29625msec); 0 zone resets slat (usec): min=35, max=25905, avg=286.32, stdev=944.04 clat (msec): min=28, max=373, avg=184.51, stdev=48.09 lat (msec): min=28, max=373, avg=184.80, stdev=48.10 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 121], 10.00th=[ 132], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 165], 50.00th=[ 180], 60.00th=[ 190], | 70.00th=[ 205], 80.00th=[ 222], 90.00th=[ 251], 95.00th=[ 275], | 99.00th=[ 334], 99.50th=[ 351], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 376] bw ( KiB/s): min= 159, max= 507, per=24.98%, avg=344.74, stdev=72.52, samples=58 iops : min= 39, max= 126, avg=85.79, stdev=18.18, samples=58 lat (msec) : 50=0.04%, 100=1.48%, 250=89.02%, 500=9.45% cpu : usr=0.14%, sys=1.09%, ctx=2182, 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=179996: Sat Jun 27 22:55:12 2026 write: IOPS=86, BW=345KiB/s (354kB/s)(10.0MiB/29662msec); 0 zone resets slat (usec): min=47, max=37945, avg=363.28, stdev=1539.11 clat (msec): min=23, max=360, avg=184.44, stdev=48.56 lat (msec): min=24, max=360, avg=184.81, stdev=48.56 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 120], 10.00th=[ 133], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 165], 50.00th=[ 178], 60.00th=[ 190], | 70.00th=[ 205], 80.00th=[ 224], 90.00th=[ 249], 95.00th=[ 275], | 99.00th=[ 334], 99.50th=[ 338], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 363] bw ( KiB/s): min= 230, max= 507, per=24.83%, avg=342.69, stdev=67.21, samples=58 iops : min= 57, max= 126, avg=85.28, stdev=16.84, samples=58 lat (msec) : 50=0.20%, 100=1.41%, 250=88.71%, 500=9.69% cpu : usr=0.16%, sys=1.15%, ctx=2927, 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=1381KiB/s (1414kB/s), 345KiB/s-346KiB/s (354kB/s-355kB/s), io=40.0MiB (41.9MB), run=29553-29662msec 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=180011: Sat Jun 27 22:55:59 2026 read: IOPS=35, BW=142KiB/s (145kB/s)(5048KiB/35585msec) slat (usec): min=2900, max=63576, avg=15459.90, stdev=8716.64 clat (msec): min=87, max=397, avg=209.88, stdev=54.17 lat (msec): min=95, max=434, avg=225.34, stdev=56.53 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 132], 10.00th=[ 142], 20.00th=[ 165], | 30.00th=[ 180], 40.00th=[ 192], 50.00th=[ 205], 60.00th=[ 218], | 70.00th=[ 232], 80.00th=[ 253], 90.00th=[ 279], 95.00th=[ 309], | 99.00th=[ 368], 99.50th=[ 376], 99.90th=[ 388], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 36, max= 223, per=25.17%, avg=141.44, stdev=31.50, samples=70 iops : min= 9, max= 55, avg=34.93, stdev= 7.89, samples=70 write: IOPS=36, BW=146KiB/s (149kB/s)(5192KiB/35585msec); 0 zone resets slat (usec): min=53, max=13882, avg=329.25, stdev=815.74 clat (msec): min=82, max=381, avg=215.12, stdev=48.99 lat (msec): min=82, max=382, avg=215.45, stdev=48.98 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 148], 10.00th=[ 161], 20.00th=[ 176], | 30.00th=[ 186], 40.00th=[ 199], 50.00th=[ 209], 60.00th=[ 220], | 70.00th=[ 234], 80.00th=[ 253], 90.00th=[ 284], 95.00th=[ 309], | 99.00th=[ 355], 99.50th=[ 368], 99.90th=[ 376], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 29, max= 232, per=24.94%, avg=145.90, stdev=42.37, samples=70 iops : min= 7, max= 58, avg=36.03, stdev=10.65, samples=70 lat (msec) : 100=0.23%, 250=78.52%, 500=21.25% cpu : usr=0.26%, sys=1.98%, ctx=4468, 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=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=180012: Sat Jun 27 22:55:59 2026 read: IOPS=35, BW=141KiB/s (144kB/s)(4976KiB/35366msec) slat (usec): min=2912, max=72791, avg=15526.02, stdev=8844.13 clat (msec): min=62, max=421, avg=210.00, stdev=56.42 lat (msec): min=93, max=444, avg=225.53, stdev=58.79 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 132], 10.00th=[ 144], 20.00th=[ 163], | 30.00th=[ 178], 40.00th=[ 192], 50.00th=[ 203], 60.00th=[ 215], | 70.00th=[ 234], 80.00th=[ 253], 90.00th=[ 288], 95.00th=[ 317], | 99.00th=[ 372], 99.50th=[ 393], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 42, max= 232, per=24.85%, avg=139.67, stdev=36.18, samples=70 iops : min= 10, max= 58, avg=34.46, stdev= 9.07, samples=70 write: IOPS=37, BW=149KiB/s (152kB/s)(5264KiB/35366msec); 0 zone resets slat (usec): min=53, max=11540, avg=319.74, stdev=737.77 clat (msec): min=102, max=463, avg=213.59, stdev=50.80 lat (msec): min=102, max=463, avg=213.91, stdev=50.81 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 144], 10.00th=[ 159], 20.00th=[ 174], | 30.00th=[ 182], 40.00th=[ 194], 50.00th=[ 205], 60.00th=[ 220], | 70.00th=[ 234], 80.00th=[ 255], 90.00th=[ 284], 95.00th=[ 309], | 99.00th=[ 355], 99.50th=[ 372], 99.90th=[ 464], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 64, max= 264, per=25.40%, avg=148.61, stdev=40.62, samples=70 iops : min= 16, max= 66, avg=36.71, stdev=10.22, samples=70 lat (msec) : 100=0.16%, 250=78.12%, 500=21.72% cpu : usr=0.25%, sys=2.12%, ctx=4575, 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=180013: Sat Jun 27 22:55:59 2026 read: IOPS=35, BW=141KiB/s (145kB/s)(4984KiB/35247msec) slat (usec): min=84, max=69768, avg=15550.19, stdev=8912.35 clat (msec): min=17, max=429, avg=208.61, stdev=56.85 lat (msec): min=24, max=445, avg=224.17, stdev=59.49 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 129], 10.00th=[ 144], 20.00th=[ 161], | 30.00th=[ 178], 40.00th=[ 190], 50.00th=[ 205], 60.00th=[ 218], | 70.00th=[ 232], 80.00th=[ 253], 90.00th=[ 284], 95.00th=[ 317], | 99.00th=[ 359], 99.50th=[ 372], 99.90th=[ 414], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 64, max= 240, per=25.13%, avg=141.23, stdev=36.61, samples=69 iops : min= 16, max= 60, avg=34.86, stdev= 9.21, samples=69 write: IOPS=37, BW=149KiB/s (153kB/s)(5256KiB/35247msec); 0 zone resets slat (usec): min=41, max=23044, avg=386.01, stdev=1217.61 clat (msec): min=77, max=411, avg=215.55, stdev=50.09 lat (msec): min=77, max=411, avg=215.94, stdev=50.13 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 142], 10.00th=[ 155], 20.00th=[ 174], | 30.00th=[ 186], 40.00th=[ 199], 50.00th=[ 211], 60.00th=[ 226], | 70.00th=[ 239], 80.00th=[ 255], 90.00th=[ 284], 95.00th=[ 309], | 99.00th=[ 355], 99.50th=[ 368], 99.90th=[ 393], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 64, max= 231, per=25.39%, avg=148.52, stdev=39.12, samples=69 iops : min= 16, max= 57, avg=36.68, stdev= 9.80, samples=69 lat (msec) : 20=0.04%, 50=0.16%, 100=0.51%, 250=77.89%, 500=21.41% cpu : usr=0.26%, sys=1.96%, ctx=4670, 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=180014: Sat Jun 27 22:55:59 2026 read: IOPS=35, BW=142KiB/s (145kB/s)(5060KiB/35676msec) slat (usec): min=2380, max=69098, avg=15987.06, stdev=9155.95 clat (msec): min=26, max=391, avg=210.93, stdev=54.66 lat (msec): min=36, max=418, avg=226.92, stdev=56.90 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 131], 10.00th=[ 144], 20.00th=[ 165], | 30.00th=[ 182], 40.00th=[ 197], 50.00th=[ 207], 60.00th=[ 222], | 70.00th=[ 236], 80.00th=[ 255], 90.00th=[ 284], 95.00th=[ 309], | 99.00th=[ 351], 99.50th=[ 363], 99.90th=[ 384], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 21, max= 264, per=25.11%, avg=141.13, stdev=38.03, samples=70 iops : min= 5, max= 66, avg=34.83, stdev= 9.59, samples=70 write: IOPS=36, BW=145KiB/s (149kB/s)(5180KiB/35676msec); 0 zone resets slat (usec): min=52, max=24436, avg=419.49, stdev=1421.11 clat (msec): min=61, max=378, avg=214.53, stdev=48.99 lat (msec): min=66, max=378, avg=214.95, stdev=49.05 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 146], 10.00th=[ 161], 20.00th=[ 176], | 30.00th=[ 186], 40.00th=[ 197], 50.00th=[ 209], 60.00th=[ 222], | 70.00th=[ 234], 80.00th=[ 253], 90.00th=[ 284], 95.00th=[ 309], | 99.00th=[ 351], 99.50th=[ 359], 99.90th=[ 376], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 42, max= 232, per=24.65%, avg=144.23, stdev=38.19, samples=70 iops : min= 10, max= 58, avg=35.61, stdev= 9.54, samples=70 lat (msec) : 50=0.08%, 100=0.55%, 250=78.20%, 500=21.17% cpu : usr=0.23%, sys=2.18%, ctx=4638, 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=563KiB/s (576kB/s), 141KiB/s-142KiB/s (144kB/s-145kB/s), io=19.6MiB (20.5MB), run=35247-35676msec WRITE: bw=586KiB/s (600kB/s), 145KiB/s-149KiB/s (149kB/s-153kB/s), io=20.4MiB (21.4MB), run=35247-35676msec 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=180023: Sat Jun 27 22:56:11 2026 read: IOPS=1, BW=71.2MiB/s (74.6MB/s)(40.0MiB/562msec) slat (nsec): min=33900k, max=33900k, avg=33899515.00, stdev= 0.00 clat (nsec): min=489642k, max=489642k, avg=489641905.00, stdev= 0.00 lat (nsec): min=523546k, max=523546k, avg=523546312.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 489], 5.00th=[ 489], 10.00th=[ 489], 20.00th=[ 489], | 30.00th=[ 489], 40.00th=[ 489], 50.00th=[ 489], 60.00th=[ 489], | 70.00th=[ 489], 80.00th=[ 489], 90.00th=[ 489], 95.00th=[ 489], | 99.00th=[ 489], 99.50th=[ 489], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] lat (msec) : 500=100.00% cpu : usr=0.18%, sys=2.50%, ctx=3, 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=71.2MiB/s (74.6MB/s), 71.2MiB/s-71.2MiB/s (74.6MB/s-74.6MB/s), io=40.0MiB (41.9MB), run=562-562msec 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