== sanity test 398c: run fio to test AIO ================= 21:50:15 (1785462615) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.795602 s, 52.7 MB/s osc.lustre-OST0000-osc-ffff88dbc8ae7800.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=179295: Thu Jul 30 21:51:07 2026 write: IOPS=68, BW=273KiB/s (279kB/s)(10.0MiB/37536msec); 0 zone resets slat (usec): min=47, max=26671, avg=305.37, stdev=1223.27 clat (msec): min=40, max=508, avg=233.91, stdev=58.23 lat (msec): min=40, max=508, avg=234.22, stdev=58.25 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 150], 10.00th=[ 165], 20.00th=[ 184], | 30.00th=[ 201], 40.00th=[ 220], 50.00th=[ 232], 60.00th=[ 245], | 70.00th=[ 259], 80.00th=[ 279], 90.00th=[ 309], 95.00th=[ 330], | 99.00th=[ 384], 99.50th=[ 464], 99.90th=[ 510], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 135, max= 384, per=25.01%, avg=271.91, stdev=58.21, samples=74 iops : min= 33, max= 96, avg=67.55, stdev=14.57, samples=74 lat (msec) : 50=0.08%, 100=0.20%, 250=64.34%, 500=35.20%, 750=0.20% cpu : usr=0.13%, sys=0.92%, ctx=2870, 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=179296: Thu Jul 30 21:51:07 2026 write: IOPS=67, BW=272KiB/s (278kB/s)(10.0MiB/37681msec); 0 zone resets slat (usec): min=35, max=21745, avg=229.96, stdev=889.13 clat (msec): min=21, max=514, avg=233.83, stdev=59.13 lat (msec): min=21, max=514, avg=234.07, stdev=59.09 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 148], 10.00th=[ 163], 20.00th=[ 184], | 30.00th=[ 203], 40.00th=[ 215], 50.00th=[ 234], 60.00th=[ 247], | 70.00th=[ 259], 80.00th=[ 275], 90.00th=[ 305], 95.00th=[ 334], | 99.00th=[ 418], 99.50th=[ 472], 99.90th=[ 514], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 124, max= 470, per=24.83%, avg=269.89, stdev=58.17, samples=74 iops : min= 31, max= 117, avg=67.04, stdev=14.55, samples=74 lat (msec) : 50=0.08%, 250=63.79%, 500=35.66%, 750=0.47% cpu : usr=0.10%, sys=0.75%, ctx=1823, 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=179297: Thu Jul 30 21:51:07 2026 write: IOPS=68, BW=272KiB/s (279kB/s)(10.0MiB/37611msec); 0 zone resets slat (usec): min=47, max=37638, avg=302.52, stdev=1386.22 clat (msec): min=35, max=520, avg=234.13, stdev=58.12 lat (msec): min=36, max=520, avg=234.44, stdev=58.13 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 150], 10.00th=[ 163], 20.00th=[ 184], | 30.00th=[ 199], 40.00th=[ 215], 50.00th=[ 232], 60.00th=[ 249], | 70.00th=[ 259], 80.00th=[ 279], 90.00th=[ 309], 95.00th=[ 330], | 99.00th=[ 397], 99.50th=[ 481], 99.90th=[ 523], 99.95th=[ 523], | 99.99th=[ 523] bw ( KiB/s): min= 127, max= 392, per=24.92%, avg=270.91, stdev=53.66, samples=74 iops : min= 31, max= 98, avg=67.32, stdev=13.48, samples=74 lat (msec) : 50=0.12%, 100=0.20%, 250=61.60%, 500=37.73%, 750=0.35% cpu : usr=0.12%, sys=0.92%, ctx=2502, 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=179298: Thu Jul 30 21:51:07 2026 write: IOPS=67, BW=272KiB/s (278kB/s)(10.0MiB/37662msec); 0 zone resets slat (usec): min=40, max=15342, avg=203.51, stdev=731.43 clat (msec): min=98, max=509, avg=233.65, stdev=58.18 lat (msec): min=98, max=509, avg=233.85, stdev=58.20 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 153], 10.00th=[ 161], 20.00th=[ 184], | 30.00th=[ 203], 40.00th=[ 215], 50.00th=[ 230], 60.00th=[ 247], | 70.00th=[ 262], 80.00th=[ 279], 90.00th=[ 305], 95.00th=[ 342], | 99.00th=[ 397], 99.50th=[ 472], 99.90th=[ 510], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 124, max= 384, per=24.81%, avg=269.66, stdev=59.40, samples=74 iops : min= 31, max= 96, avg=67.00, stdev=14.88, samples=74 lat (msec) : 100=0.08%, 250=62.42%, 500=37.15%, 750=0.35% cpu : usr=0.11%, sys=0.62%, ctx=1311, 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=1087KiB/s (1113kB/s), 272KiB/s-273KiB/s (278kB/s-279kB/s), io=40.0MiB (41.9MB), run=37536-37681msec 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=179314: Thu Jul 30 21:52:08 2026 read: IOPS=25, BW=103KiB/s (105kB/s)(5048KiB/49041msec) slat (usec): min=2959, max=79725, avg=23001.62, stdev=13838.08 clat (msec): min=29, max=519, avg=289.97, stdev=65.15 lat (msec): min=35, max=531, avg=312.98, stdev=66.67 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 194], 10.00th=[ 211], 20.00th=[ 236], | 30.00th=[ 255], 40.00th=[ 271], 50.00th=[ 288], 60.00th=[ 305], | 70.00th=[ 321], 80.00th=[ 342], 90.00th=[ 376], 95.00th=[ 401], | 99.00th=[ 451], 99.50th=[ 468], 99.90th=[ 506], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 47, max= 160, per=24.85%, avg=101.65, stdev=27.40, samples=96 iops : min= 11, max= 40, avg=24.91, stdev= 6.93, samples=96 write: IOPS=26, BW=106KiB/s (108kB/s)(5192KiB/49041msec); 0 zone resets slat (usec): min=51, max=20826, avg=263.55, stdev=1012.25 clat (msec): min=29, max=503, avg=296.19, stdev=63.24 lat (msec): min=29, max=503, avg=296.45, stdev=63.28 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 199], 10.00th=[ 220], 20.00th=[ 243], | 30.00th=[ 264], 40.00th=[ 279], 50.00th=[ 296], 60.00th=[ 313], | 70.00th=[ 330], 80.00th=[ 347], 90.00th=[ 380], 95.00th=[ 409], | 99.00th=[ 447], 99.50th=[ 451], 99.90th=[ 472], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 42, max= 168, per=24.68%, avg=105.14, stdev=28.35, samples=96 iops : min= 10, max= 42, avg=25.78, stdev= 7.11, samples=96 lat (msec) : 50=0.23%, 100=0.43%, 250=24.34%, 500=74.88%, 750=0.12% cpu : usr=0.18%, sys=1.31%, ctx=3712, 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=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=179315: Thu Jul 30 21:52:08 2026 read: IOPS=25, BW=102KiB/s (104kB/s)(4976KiB/48862msec) slat (usec): min=2420, max=96677, avg=22274.31, stdev=13161.36 clat (msec): min=55, max=566, avg=288.22, stdev=63.05 lat (msec): min=59, max=577, avg=310.50, stdev=64.81 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 190], 10.00th=[ 209], 20.00th=[ 236], | 30.00th=[ 253], 40.00th=[ 271], 50.00th=[ 284], 60.00th=[ 300], | 70.00th=[ 321], 80.00th=[ 342], 90.00th=[ 372], 95.00th=[ 393], | 99.00th=[ 447], 99.50th=[ 472], 99.90th=[ 535], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 31, max= 190, per=24.83%, avg=101.57, stdev=28.35, samples=96 iops : min= 7, max= 47, avg=24.89, stdev= 7.11, samples=96 write: IOPS=26, BW=108KiB/s (110kB/s)(5264KiB/48862msec); 0 zone resets slat (usec): min=50, max=17440, avg=230.31, stdev=756.13 clat (msec): min=128, max=678, avg=297.88, stdev=61.58 lat (msec): min=128, max=678, avg=298.11, stdev=61.57 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 203], 10.00th=[ 224], 20.00th=[ 243], | 30.00th=[ 266], 40.00th=[ 284], 50.00th=[ 296], 60.00th=[ 309], | 70.00th=[ 330], 80.00th=[ 347], 90.00th=[ 376], 95.00th=[ 397], | 99.00th=[ 443], 99.50th=[ 460], 99.90th=[ 676], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 39, max= 160, per=25.20%, avg=107.36, stdev=27.97, samples=96 iops : min= 9, max= 40, avg=26.34, stdev= 7.08, samples=96 lat (msec) : 100=0.04%, 250=24.88%, 500=74.73%, 750=0.35% cpu : usr=0.16%, sys=1.23%, ctx=3777, majf=0, minf=15 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=179316: Thu Jul 30 21:52:08 2026 read: IOPS=25, BW=102KiB/s (104kB/s)(4984KiB/48876msec) slat (usec): min=64, max=92462, avg=22762.33, stdev=14039.00 clat (msec): min=71, max=640, avg=289.53, stdev=67.17 lat (msec): min=116, max=665, avg=312.29, stdev=69.34 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 190], 10.00th=[ 209], 20.00th=[ 234], | 30.00th=[ 251], 40.00th=[ 268], 50.00th=[ 284], 60.00th=[ 300], | 70.00th=[ 321], 80.00th=[ 342], 90.00th=[ 376], 95.00th=[ 405], | 99.00th=[ 468], 99.50th=[ 493], 99.90th=[ 609], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 48, max= 192, per=24.87%, avg=101.72, stdev=25.58, samples=96 iops : min= 12, max= 48, avg=24.93, stdev= 6.44, samples=96 write: IOPS=26, BW=108KiB/s (110kB/s)(5256KiB/48876msec); 0 zone resets slat (usec): min=50, max=16026, avg=188.28, stdev=528.14 clat (msec): min=99, max=599, avg=298.02, stdev=62.59 lat (msec): min=99, max=599, avg=298.22, stdev=62.57 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 207], 10.00th=[ 226], 20.00th=[ 245], | 30.00th=[ 262], 40.00th=[ 279], 50.00th=[ 296], 60.00th=[ 309], | 70.00th=[ 326], 80.00th=[ 351], 90.00th=[ 376], 95.00th=[ 409], | 99.00th=[ 472], 99.50th=[ 485], 99.90th=[ 575], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 31, max= 182, per=25.09%, avg=106.89, stdev=28.08, samples=96 iops : min= 7, max= 45, avg=26.22, stdev= 7.07, samples=96 lat (msec) : 100=0.08%, 250=26.05%, 500=73.48%, 750=0.39% cpu : usr=0.18%, sys=1.25%, ctx=3493, 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=179317: Thu Jul 30 21:52:08 2026 read: IOPS=25, BW=103KiB/s (106kB/s)(5060KiB/48975msec) slat (usec): min=2596, max=85361, avg=23127.23, stdev=14235.02 clat (msec): min=101, max=550, avg=288.27, stdev=63.73 lat (msec): min=124, max=559, avg=311.41, stdev=65.91 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 194], 10.00th=[ 211], 20.00th=[ 230], | 30.00th=[ 251], 40.00th=[ 271], 50.00th=[ 284], 60.00th=[ 305], | 70.00th=[ 321], 80.00th=[ 342], 90.00th=[ 372], 95.00th=[ 393], | 99.00th=[ 460], 99.50th=[ 468], 99.90th=[ 506], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 31, max= 174, per=25.24%, avg=103.22, stdev=25.59, samples=96 iops : min= 7, max= 43, avg=25.30, stdev= 6.46, samples=96 write: IOPS=26, BW=106KiB/s (108kB/s)(5180KiB/48975msec); 0 zone resets slat (usec): min=51, max=18964, avg=236.13, stdev=916.66 clat (msec): min=91, max=502, avg=297.74, stdev=60.31 lat (msec): min=91, max=502, avg=297.98, stdev=60.30 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 205], 10.00th=[ 224], 20.00th=[ 249], | 30.00th=[ 264], 40.00th=[ 279], 50.00th=[ 296], 60.00th=[ 313], | 70.00th=[ 326], 80.00th=[ 347], 90.00th=[ 376], 95.00th=[ 405], | 99.00th=[ 451], 99.50th=[ 460], 99.90th=[ 485], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 55, max= 159, per=24.66%, avg=105.06, stdev=26.60, samples=96 iops : min= 13, max= 39, avg=25.77, stdev= 6.70, samples=96 lat (msec) : 100=0.08%, 250=25.47%, 500=74.34%, 750=0.12% cpu : usr=0.14%, sys=1.14%, ctx=3472, 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=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=409KiB/s (419kB/s), 102KiB/s-103KiB/s (104kB/s-106kB/s), io=19.6MiB (20.5MB), run=48862-49041msec WRITE: bw=426KiB/s (436kB/s), 106KiB/s-108KiB/s (108kB/s-110kB/s), io=20.4MiB (21.4MB), run=48862-49041msec 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=179329: Thu Jul 30 21:52:23 2026 read: IOPS=0, BW=23.5MiB/s (24.6MB/s)(40.0MiB/1702msec) slat (nsec): min=102637k, max=102637k, avg=102636785.00, stdev= 0.00 clat (nsec): min=1527.9M, max=1527.9M, avg=1527887318.00, stdev= 0.00 lat (nsec): min=1630.5M, max=1630.5M, avg=1630527976.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1536], 5.00th=[ 1536], 10.00th=[ 1536], 20.00th=[ 1536], | 30.00th=[ 1536], 40.00th=[ 1536], 50.00th=[ 1536], 60.00th=[ 1536], | 70.00th=[ 1536], 80.00th=[ 1536], 90.00th=[ 1536], 95.00th=[ 1536], | 99.00th=[ 1536], 99.50th=[ 1536], 99.90th=[ 1536], 99.95th=[ 1536], | 99.99th=[ 1536] lat (msec) : 2000=100.00% cpu : usr=0.00%, sys=0.71%, ctx=5, majf=0, minf=9 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=23.5MiB/s (24.6MB/s), 23.5MiB/s-23.5MiB/s (24.6MB/s-24.6MB/s), io=40.0MiB (41.9MB), run=1702-1702msec 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