== sanity test 398c: run fio to test AIO ================= 18:53:00 (1785970380) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.485826 s, 86.3 MB/s osc.lustre-OST0000-osc-ffff9a6643086000.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=180753: Wed Aug 5 18:53:30 2026 write: IOPS=113, BW=453KiB/s (464kB/s)(10.0MiB/22605msec); 0 zone resets slat (usec): min=35, max=16616, avg=250.32, stdev=674.27 clat (msec): min=65, max=304, avg=140.68, stdev=37.38 lat (msec): min=65, max=305, avg=140.93, stdev=37.41 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 88], 10.00th=[ 95], 20.00th=[ 111], | 30.00th=[ 121], 40.00th=[ 128], 50.00th=[ 136], 60.00th=[ 146], | 70.00th=[ 157], 80.00th=[ 169], 90.00th=[ 184], 95.00th=[ 201], | 99.00th=[ 279], 99.50th=[ 292], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 223, max= 624, per=25.06%, avg=453.80, stdev=90.27, samples=44 iops : min= 55, max= 156, avg=113.16, stdev=22.64, samples=44 lat (msec) : 100=11.99%, 250=86.21%, 500=1.80% cpu : usr=0.15%, sys=1.44%, ctx=2780, 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=180754: Wed Aug 5 18:53:30 2026 write: IOPS=113, BW=453KiB/s (464kB/s)(10.0MiB/22597msec); 0 zone resets slat (usec): min=35, max=8326, avg=247.28, stdev=580.16 clat (msec): min=32, max=332, avg=140.25, stdev=37.29 lat (msec): min=32, max=332, avg=140.50, stdev=37.31 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 90], 10.00th=[ 100], 20.00th=[ 110], | 30.00th=[ 122], 40.00th=[ 128], 50.00th=[ 136], 60.00th=[ 146], | 70.00th=[ 155], 80.00th=[ 167], 90.00th=[ 186], 95.00th=[ 201], | 99.00th=[ 275], 99.50th=[ 284], 99.90th=[ 313], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 247, max= 640, per=25.09%, avg=454.45, stdev=87.40, samples=44 iops : min= 61, max= 160, avg=113.32, stdev=21.90, samples=44 lat (msec) : 50=0.16%, 100=10.27%, 250=87.38%, 500=2.19% cpu : usr=0.22%, sys=1.51%, ctx=2779, 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=180755: Wed Aug 5 18:53:30 2026 write: IOPS=113, BW=455KiB/s (466kB/s)(10.0MiB/22507msec); 0 zone resets slat (usec): min=34, max=11719, avg=257.65, stdev=677.83 clat (msec): min=17, max=349, avg=140.17, stdev=37.79 lat (msec): min=18, max=349, avg=140.43, stdev=37.84 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 89], 10.00th=[ 100], 20.00th=[ 110], | 30.00th=[ 120], 40.00th=[ 127], 50.00th=[ 136], 60.00th=[ 146], | 70.00th=[ 155], 80.00th=[ 167], 90.00th=[ 184], 95.00th=[ 199], | 99.00th=[ 268], 99.50th=[ 313], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 351] bw ( KiB/s): min= 253, max= 640, per=25.15%, avg=455.52, stdev=91.22, samples=44 iops : min= 63, max= 160, avg=113.57, stdev=22.87, samples=44 lat (msec) : 20=0.04%, 50=0.12%, 100=10.86%, 250=87.15%, 500=1.84% cpu : usr=0.21%, sys=1.31%, ctx=2754, 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 rand-write: (groupid=0, jobs=1): err= 0: pid=180756: Wed Aug 5 18:53:30 2026 write: IOPS=113, BW=454KiB/s (465kB/s)(10.0MiB/22551msec); 0 zone resets slat (usec): min=36, max=13478, avg=270.03, stdev=756.53 clat (msec): min=10, max=353, avg=140.13, stdev=38.68 lat (msec): min=11, max=353, avg=140.40, stdev=38.70 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 89], 10.00th=[ 97], 20.00th=[ 111], | 30.00th=[ 120], 40.00th=[ 127], 50.00th=[ 136], 60.00th=[ 146], | 70.00th=[ 157], 80.00th=[ 167], 90.00th=[ 182], 95.00th=[ 205], | 99.00th=[ 279], 99.50th=[ 300], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 239, max= 640, per=25.12%, avg=454.91, stdev=94.21, samples=44 iops : min= 59, max= 160, avg=113.41, stdev=23.62, samples=44 lat (msec) : 20=0.20%, 50=0.31%, 100=11.48%, 250=86.09%, 500=1.91% cpu : usr=0.21%, sys=1.42%, ctx=2922, 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=1812KiB/s (1855kB/s), 453KiB/s-455KiB/s (464kB/s-466kB/s), io=40.0MiB (41.9MB), run=22507-22605msec 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=180770: Wed Aug 5 18:54:06 2026 read: IOPS=44, BW=178KiB/s (182kB/s)(5048KiB/28399msec) slat (usec): min=2760, max=61383, avg=13114.56, stdev=7810.58 clat (msec): min=25, max=309, avg=167.54, stdev=44.01 lat (msec): min=43, max=323, avg=180.66, stdev=46.22 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 102], 10.00th=[ 115], 20.00th=[ 132], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 163], 60.00th=[ 174], | 70.00th=[ 186], 80.00th=[ 203], 90.00th=[ 226], 95.00th=[ 253], | 99.00th=[ 288], 99.50th=[ 300], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 98, max= 304, per=25.06%, avg=176.95, stdev=44.84, samples=56 iops : min= 24, max= 76, avg=43.84, stdev=11.28, samples=56 write: IOPS=45, BW=183KiB/s (187kB/s)(5192KiB/28399msec); 0 zone resets slat (usec): min=53, max=9352, avg=264.18, stdev=586.67 clat (msec): min=49, max=343, avg=171.99, stdev=42.97 lat (msec): min=49, max=344, avg=172.26, stdev=42.95 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 112], 10.00th=[ 124], 20.00th=[ 134], | 30.00th=[ 146], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 178], | 70.00th=[ 192], 80.00th=[ 207], 90.00th=[ 236], 95.00th=[ 251], | 99.00th=[ 288], 99.50th=[ 300], 99.90th=[ 338], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 95, max= 304, per=24.75%, avg=181.93, stdev=44.13, samples=56 iops : min= 23, max= 76, avg=45.07, stdev=11.08, samples=56 lat (msec) : 50=0.08%, 100=3.16%, 250=91.41%, 500=5.35% cpu : usr=0.17%, sys=2.12%, ctx=4607, 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=180771: Wed Aug 5 18:54:06 2026 read: IOPS=43, BW=175KiB/s (180kB/s)(4976KiB/28371msec) slat (usec): min=2441, max=64936, avg=13055.25, stdev=7645.01 clat (msec): min=10, max=308, avg=167.17, stdev=41.27 lat (msec): min=19, max=320, avg=180.23, stdev=43.08 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 108], 10.00th=[ 118], 20.00th=[ 133], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 163], 60.00th=[ 176], | 70.00th=[ 186], 80.00th=[ 201], 90.00th=[ 226], 95.00th=[ 243], | 99.00th=[ 271], 99.50th=[ 288], 99.90th=[ 305], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 91, max= 278, per=24.74%, avg=174.68, stdev=40.61, samples=56 iops : min= 22, max= 69, avg=43.27, stdev=10.24, samples=56 write: IOPS=46, BW=186KiB/s (190kB/s)(5264KiB/28371msec); 0 zone resets slat (usec): min=53, max=15260, avg=317.07, stdev=901.73 clat (msec): min=74, max=308, avg=172.48, stdev=41.67 lat (msec): min=74, max=308, avg=172.79, stdev=41.73 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 115], 10.00th=[ 123], 20.00th=[ 136], | 30.00th=[ 146], 40.00th=[ 157], 50.00th=[ 167], 60.00th=[ 180], | 70.00th=[ 192], 80.00th=[ 213], 90.00th=[ 232], 95.00th=[ 247], | 99.00th=[ 271], 99.50th=[ 284], 99.90th=[ 305], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 111, max= 310, per=25.22%, avg=185.37, stdev=45.49, samples=56 iops : min= 27, max= 77, avg=45.95, stdev=11.44, samples=56 lat (msec) : 20=0.04%, 50=0.08%, 100=2.30%, 250=93.55%, 500=4.02% cpu : usr=0.30%, sys=2.02%, ctx=4318, 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=180772: Wed Aug 5 18:54:06 2026 read: IOPS=44, BW=176KiB/s (180kB/s)(4984KiB/28286msec) slat (usec): min=2565, max=63285, avg=12913.02, stdev=7636.18 clat (msec): min=36, max=297, avg=166.54, stdev=42.63 lat (msec): min=59, max=327, avg=179.46, stdev=44.38 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 104], 10.00th=[ 115], 20.00th=[ 133], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 163], 60.00th=[ 174], | 70.00th=[ 186], 80.00th=[ 201], 90.00th=[ 224], 95.00th=[ 249], | 99.00th=[ 279], 99.50th=[ 288], 99.90th=[ 292], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 83, max= 278, per=24.94%, avg=176.11, stdev=43.12, samples=56 iops : min= 20, max= 69, avg=43.61, stdev=10.85, samples=56 write: IOPS=46, BW=186KiB/s (190kB/s)(5256KiB/28286msec); 0 zone resets slat (usec): min=53, max=9199, avg=265.10, stdev=566.97 clat (msec): min=78, max=320, avg=171.94, stdev=41.58 lat (msec): min=78, max=320, avg=172.21, stdev=41.57 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 113], 10.00th=[ 123], 20.00th=[ 136], | 30.00th=[ 144], 40.00th=[ 157], 50.00th=[ 167], 60.00th=[ 180], | 70.00th=[ 192], 80.00th=[ 209], 90.00th=[ 230], 95.00th=[ 249], | 99.00th=[ 275], 99.50th=[ 284], 99.90th=[ 313], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 97, max= 304, per=25.14%, avg=184.75, stdev=42.30, samples=56 iops : min= 24, max= 76, avg=45.80, stdev=10.64, samples=56 lat (msec) : 50=0.08%, 100=2.62%, 250=92.66%, 500=4.65% cpu : usr=0.25%, sys=2.07%, ctx=4468, 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=180773: Wed Aug 5 18:54:06 2026 read: IOPS=44, BW=180KiB/s (184kB/s)(5060KiB/28161msec) slat (usec): min=61, max=57270, avg=13009.89, stdev=7702.02 clat (msec): min=24, max=310, avg=166.29, stdev=42.89 lat (msec): min=40, max=341, avg=179.30, stdev=45.09 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 104], 10.00th=[ 117], 20.00th=[ 131], | 30.00th=[ 142], 40.00th=[ 150], 50.00th=[ 161], 60.00th=[ 171], | 70.00th=[ 186], 80.00th=[ 203], 90.00th=[ 228], 95.00th=[ 247], | 99.00th=[ 275], 99.50th=[ 284], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 95, max= 287, per=25.39%, avg=179.22, stdev=41.17, samples=55 iops : min= 23, max= 71, avg=44.40, stdev=10.39, samples=55 write: IOPS=45, BW=184KiB/s (188kB/s)(5180KiB/28161msec); 0 zone resets slat (usec): min=39, max=15575, avg=290.59, stdev=867.69 clat (msec): min=63, max=318, avg=172.08, stdev=41.87 lat (msec): min=64, max=318, avg=172.37, stdev=41.90 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 116], 10.00th=[ 125], 20.00th=[ 136], | 30.00th=[ 146], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 178], | 70.00th=[ 190], 80.00th=[ 209], 90.00th=[ 234], 95.00th=[ 255], | 99.00th=[ 275], 99.50th=[ 288], 99.90th=[ 309], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 87, max= 272, per=24.95%, avg=183.38, stdev=41.09, samples=55 iops : min= 21, max= 68, avg=45.44, stdev=10.29, samples=55 lat (msec) : 50=0.04%, 100=2.73%, 250=92.07%, 500=5.16% cpu : usr=0.19%, sys=2.02%, ctx=4388, 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=707KiB/s (724kB/s), 175KiB/s-180KiB/s (180kB/s-184kB/s), io=19.6MiB (20.5MB), run=28161-28399msec WRITE: bw=736KiB/s (753kB/s), 183KiB/s-186KiB/s (187kB/s-190kB/s), io=20.4MiB (21.4MB), run=28161-28399msec 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=180783: Wed Aug 5 18:54:16 2026 read: IOPS=1, BW=67.7MiB/s (70.0MB/s)(40.0MiB/591msec) slat (nsec): min=38402k, max=38402k, avg=38402223.00, stdev= 0.00 clat (nsec): min=525039k, max=525039k, avg=525038940.00, stdev= 0.00 lat (nsec): min=563446k, max=563446k, avg=563445856.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 527], 5.00th=[ 527], 10.00th=[ 527], 20.00th=[ 527], | 30.00th=[ 527], 40.00th=[ 527], 50.00th=[ 527], 60.00th=[ 527], | 70.00th=[ 527], 80.00th=[ 527], 90.00th=[ 527], 95.00th=[ 527], | 99.00th=[ 527], 99.50th=[ 527], 99.90th=[ 527], 99.95th=[ 527], | 99.99th=[ 527] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.20%, ctx=12, 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=67.7MiB/s (70.0MB/s), 67.7MiB/s-67.7MiB/s (70.0MB/s-70.0MB/s), io=40.0MiB (41.9MB), run=591-591msec 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