== sanity test 398c: run fio to test AIO ================= 06:55:21 (1790679321) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.388534 s, 108 MB/s osc.lustre-OST0000-osc-ffff89e9465ec800.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=180901: Tue Sep 29 06:55:56 2026 write: IOPS=98, BW=395KiB/s (405kB/s)(10.0MiB/25897msec); 0 zone resets slat (usec): min=23, max=12011, avg=196.59, stdev=610.82 clat (msec): min=17, max=292, avg=161.03, stdev=36.92 lat (msec): min=17, max=292, avg=161.23, stdev=36.90 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 110], 10.00th=[ 120], 20.00th=[ 132], | 30.00th=[ 140], 40.00th=[ 150], 50.00th=[ 159], 60.00th=[ 167], | 70.00th=[ 176], 80.00th=[ 188], 90.00th=[ 207], 95.00th=[ 232], | 99.00th=[ 271], 99.50th=[ 275], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 254, max= 526, per=24.99%, avg=393.82, stdev=71.07, samples=51 iops : min= 63, max= 131, avg=98.06, stdev=17.77, samples=51 lat (msec) : 20=0.04%, 50=0.35%, 100=1.88%, 250=95.51%, 500=2.23% cpu : usr=0.12%, sys=0.92%, ctx=1918, 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=180902: Tue Sep 29 06:55:56 2026 write: IOPS=98, BW=395KiB/s (405kB/s)(10.0MiB/25917msec); 0 zone resets slat (usec): min=22, max=10881, avg=155.11, stdev=502.93 clat (msec): min=27, max=286, avg=161.63, stdev=35.61 lat (msec): min=29, max=286, avg=161.79, stdev=35.60 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 114], 10.00th=[ 122], 20.00th=[ 134], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 178], 80.00th=[ 197], 90.00th=[ 209], 95.00th=[ 226], | 99.00th=[ 255], 99.50th=[ 271], 99.90th=[ 275], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 253, max= 512, per=25.03%, avg=394.53, stdev=80.76, samples=51 iops : min= 63, max= 128, avg=98.27, stdev=20.16, samples=51 lat (msec) : 50=0.08%, 100=0.94%, 250=96.95%, 500=2.03% cpu : usr=0.12%, sys=0.73%, ctx=1373, 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=180903: Tue Sep 29 06:55:56 2026 write: IOPS=98, BW=394KiB/s (404kB/s)(10.0MiB/25976msec); 0 zone resets slat (usec): min=27, max=10445, avg=196.99, stdev=583.93 clat (msec): min=15, max=284, avg=161.23, stdev=36.17 lat (msec): min=15, max=284, avg=161.43, stdev=36.18 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 108], 10.00th=[ 120], 20.00th=[ 131], | 30.00th=[ 144], 40.00th=[ 150], 50.00th=[ 159], 60.00th=[ 165], | 70.00th=[ 176], 80.00th=[ 190], 90.00th=[ 205], 95.00th=[ 228], | 99.00th=[ 266], 99.50th=[ 271], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 230, max= 518, per=24.79%, avg=390.65, stdev=74.44, samples=51 iops : min= 57, max= 129, avg=97.31, stdev=18.63, samples=51 lat (msec) : 20=0.04%, 50=0.31%, 100=3.55%, 250=93.83%, 500=2.27% cpu : usr=0.18%, sys=0.92%, ctx=1771, 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=180904: Tue Sep 29 06:55:56 2026 write: IOPS=98, BW=394KiB/s (404kB/s)(10.0MiB/25974msec); 0 zone resets slat (usec): min=21, max=13970, avg=212.25, stdev=747.63 clat (msec): min=19, max=284, avg=161.32, stdev=36.03 lat (msec): min=19, max=284, avg=161.54, stdev=36.05 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 110], 10.00th=[ 120], 20.00th=[ 131], | 30.00th=[ 142], 40.00th=[ 150], 50.00th=[ 159], 60.00th=[ 167], | 70.00th=[ 178], 80.00th=[ 190], 90.00th=[ 205], 95.00th=[ 222], | 99.00th=[ 264], 99.50th=[ 271], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 231, max= 526, per=24.93%, avg=392.84, stdev=79.51, samples=51 iops : min= 57, max= 131, avg=97.82, stdev=19.91, samples=51 lat (msec) : 20=0.04%, 50=0.27%, 100=0.94%, 250=95.59%, 500=3.16% cpu : usr=0.19%, sys=0.95%, ctx=1921, 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=1577KiB/s (1615kB/s), 394KiB/s-395KiB/s (404kB/s-405kB/s), io=40.0MiB (41.9MB), run=25897-25976msec 24% of I/O are 1-page (PAGE_SIZE=4096), max 50% 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=180924: Tue Sep 29 06:56:31 2026 read: IOPS=44, BW=179KiB/s (184kB/s)(5048KiB/28167msec) slat (usec): min=51, max=65317, avg=12135.73, stdev=6410.55 clat (msec): min=16, max=287, avg=165.88, stdev=37.33 lat (msec): min=22, max=325, avg=178.03, stdev=38.69 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 111], 10.00th=[ 124], 20.00th=[ 136], | 30.00th=[ 146], 40.00th=[ 155], 50.00th=[ 163], 60.00th=[ 171], | 70.00th=[ 182], 80.00th=[ 197], 90.00th=[ 215], 95.00th=[ 230], | 99.00th=[ 266], 99.50th=[ 271], 99.90th=[ 284], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 110, max= 264, per=25.38%, avg=177.93, stdev=37.15, samples=55 iops : min= 27, max= 66, avg=44.02, stdev= 9.35, samples=55 write: IOPS=46, BW=184KiB/s (189kB/s)(5192KiB/28167msec); 0 zone resets slat (usec): min=35, max=15682, avg=302.15, stdev=896.72 clat (msec): min=43, max=296, avg=172.22, stdev=34.68 lat (msec): min=44, max=296, avg=172.52, stdev=34.66 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 120], 10.00th=[ 131], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 161], 50.00th=[ 169], 60.00th=[ 178], | 70.00th=[ 190], 80.00th=[ 203], 90.00th=[ 220], 95.00th=[ 234], | 99.00th=[ 262], 99.50th=[ 264], 99.90th=[ 284], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 103, max= 264, per=25.18%, avg=183.80, stdev=36.56, samples=55 iops : min= 25, max= 66, avg=45.49, stdev= 9.22, samples=55 lat (msec) : 20=0.04%, 50=0.16%, 100=1.21%, 250=96.60%, 500=1.99% cpu : usr=0.31%, sys=2.11%, ctx=4630, 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=180925: Tue Sep 29 06:56:31 2026 read: IOPS=43, BW=175KiB/s (179kB/s)(4976KiB/28488msec) slat (usec): min=37, max=106187, avg=12678.00, stdev=7391.91 clat (msec): min=76, max=320, avg=167.80, stdev=38.17 lat (msec): min=89, max=332, avg=180.49, stdev=39.54 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 114], 10.00th=[ 123], 20.00th=[ 134], | 30.00th=[ 146], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 174], | 70.00th=[ 184], 80.00th=[ 199], 90.00th=[ 220], 95.00th=[ 239], | 99.00th=[ 279], 99.50th=[ 300], 99.90th=[ 317], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 79, max= 254, per=24.66%, avg=172.89, stdev=38.53, samples=56 iops : min= 19, max= 63, avg=42.75, stdev= 9.74, samples=56 write: IOPS=46, BW=185KiB/s (189kB/s)(5264KiB/28488msec); 0 zone resets slat (usec): min=32, max=14361, avg=269.87, stdev=773.85 clat (msec): min=55, max=333, avg=175.01, stdev=37.77 lat (msec): min=55, max=333, avg=175.28, stdev=37.79 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 121], 10.00th=[ 129], 20.00th=[ 144], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 174], 60.00th=[ 182], | 70.00th=[ 192], 80.00th=[ 205], 90.00th=[ 224], 95.00th=[ 243], | 99.00th=[ 271], 99.50th=[ 309], 99.90th=[ 326], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 120, max= 285, per=25.27%, avg=184.48, stdev=36.90, samples=56 iops : min= 30, max= 71, avg=45.66, stdev= 9.21, samples=56 lat (msec) : 100=1.21%, 250=95.62%, 500=3.16% cpu : usr=0.36%, sys=2.00%, ctx=4658, 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=180926: Tue Sep 29 06:56:31 2026 read: IOPS=44, BW=176KiB/s (180kB/s)(4984KiB/28317msec) slat (usec): min=50, max=55605, avg=12166.29, stdev=6292.54 clat (msec): min=21, max=307, avg=167.06, stdev=37.76 lat (msec): min=29, max=325, avg=179.24, stdev=38.94 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 112], 10.00th=[ 123], 20.00th=[ 136], | 30.00th=[ 144], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 186], 80.00th=[ 199], 90.00th=[ 218], 95.00th=[ 232], | 99.00th=[ 262], 99.50th=[ 279], 99.90th=[ 305], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 71, max= 255, per=25.07%, avg=175.75, stdev=41.74, samples=56 iops : min= 17, max= 63, avg=43.48, stdev=10.49, samples=56 write: IOPS=46, BW=186KiB/s (190kB/s)(5256KiB/28317msec); 0 zone resets slat (usec): min=30, max=22235, avg=281.77, stdev=948.87 clat (msec): min=21, max=346, avg=173.16, stdev=36.87 lat (msec): min=21, max=346, avg=173.44, stdev=36.87 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 121], 10.00th=[ 131], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 182], | 70.00th=[ 190], 80.00th=[ 203], 90.00th=[ 220], 95.00th=[ 236], | 99.00th=[ 275], 99.50th=[ 288], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 94, max= 288, per=25.30%, avg=184.68, stdev=38.22, samples=56 iops : min= 23, max= 72, avg=45.71, stdev= 9.68, samples=56 lat (msec) : 50=0.23%, 100=1.21%, 250=96.25%, 500=2.30% cpu : usr=0.29%, sys=1.97%, ctx=4647, 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=180927: Tue Sep 29 06:56:31 2026 read: IOPS=44, BW=177KiB/s (181kB/s)(5060KiB/28605msec) slat (usec): min=54, max=161504, avg=12544.44, stdev=9994.13 clat (msec): min=7, max=801, avg=171.36, stdev=63.26 lat (msec): min=18, max=809, avg=183.91, stdev=65.60 clat percentiles (msec): | 1.00th=[ 40], 5.00th=[ 106], 10.00th=[ 121], 20.00th=[ 136], | 30.00th=[ 148], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 186], 80.00th=[ 201], 90.00th=[ 226], 95.00th=[ 247], | 99.00th=[ 305], 99.50th=[ 709], 99.90th=[ 760], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 79, max= 240, per=24.74%, avg=173.43, stdev=34.63, samples=56 iops : min= 19, max= 60, avg=42.89, stdev= 8.71, samples=56 write: IOPS=45, BW=181KiB/s (185kB/s)(5180KiB/28605msec); 0 zone resets slat (usec): min=34, max=9190, avg=274.65, stdev=699.94 clat (msec): min=23, max=775, avg=172.09, stdev=52.63 lat (msec): min=23, max=775, avg=172.37, stdev=52.61 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 113], 10.00th=[ 127], 20.00th=[ 142], | 30.00th=[ 150], 40.00th=[ 159], 50.00th=[ 167], 60.00th=[ 178], | 70.00th=[ 188], 80.00th=[ 201], 90.00th=[ 220], 95.00th=[ 236], | 99.00th=[ 288], 99.50th=[ 317], 99.90th=[ 768], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 39, max= 264, per=24.24%, avg=176.98, stdev=42.28, samples=56 iops : min= 9, max= 66, avg=43.80, stdev=10.65, samples=56 lat (msec) : 10=0.04%, 20=0.08%, 50=1.09%, 100=1.68%, 250=93.28% lat (msec) : 500=3.28%, 750=0.35%, 1000=0.20% cpu : usr=0.36%, sys=1.89%, ctx=4624, majf=0, minf=16 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=702KiB/s (718kB/s), 175KiB/s-179KiB/s (179kB/s-184kB/s), io=19.6MiB (20.5MB), run=28167-28605msec WRITE: bw=730KiB/s (748kB/s), 181KiB/s-186KiB/s (185kB/s-190kB/s), io=20.4MiB (21.4MB), run=28167-28605msec 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=180935: Tue Sep 29 06:56:40 2026 read: IOPS=2, BW=89.3MiB/s (93.6MB/s)(40.0MiB/448msec) slat (nsec): min=22716k, max=22716k, avg=22716000.00, stdev= 0.00 clat (nsec): min=401337k, max=401337k, avg=401337171.00, stdev= 0.00 lat (nsec): min=424057k, max=424057k, avg=424057452.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 401], 10.00th=[ 401], 20.00th=[ 401], | 30.00th=[ 401], 40.00th=[ 401], 50.00th=[ 401], 60.00th=[ 401], | 70.00th=[ 401], 80.00th=[ 401], 90.00th=[ 401], 95.00th=[ 401], | 99.00th=[ 401], 99.50th=[ 401], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.68%, 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=89.3MiB/s (93.6MB/s), 89.3MiB/s-89.3MiB/s (93.6MB/s-93.6MB/s), io=40.0MiB (41.9MB), run=448-448msec 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