== sanity test 398c: run fio to test AIO ================= 20:35:06 (1786754106) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.627105 s, 66.9 MB/s osc.lustre-OST0000-osc-ffff99cfc3cd0000.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=180524: Fri Aug 14 20:35:48 2026 write: IOPS=83, BW=334KiB/s (342kB/s)(10.0MiB/30672msec); 0 zone resets slat (usec): min=47, max=22339, avg=360.97, stdev=1132.57 clat (msec): min=33, max=327, avg=190.84, stdev=42.41 lat (msec): min=33, max=327, avg=191.20, stdev=42.42 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 130], 10.00th=[ 140], 20.00th=[ 155], | 30.00th=[ 167], 40.00th=[ 178], 50.00th=[ 190], 60.00th=[ 203], | 70.00th=[ 211], 80.00th=[ 226], 90.00th=[ 247], 95.00th=[ 259], | 99.00th=[ 296], 99.50th=[ 313], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 247, max= 561, per=24.91%, avg=331.60, stdev=59.32, samples=60 iops : min= 61, max= 140, avg=82.50, stdev=14.85, samples=60 lat (msec) : 50=0.04%, 100=1.33%, 250=90.20%, 500=8.44% cpu : usr=0.18%, sys=1.42%, ctx=2748, 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=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=180525: Fri Aug 14 20:35:48 2026 write: IOPS=83, BW=333KiB/s (341kB/s)(10.0MiB/30772msec); 0 zone resets slat (usec): min=52, max=13184, avg=362.80, stdev=970.48 clat (msec): min=12, max=339, avg=191.18, stdev=43.02 lat (msec): min=13, max=339, avg=191.55, stdev=43.00 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 127], 10.00th=[ 140], 20.00th=[ 155], | 30.00th=[ 167], 40.00th=[ 178], 50.00th=[ 190], 60.00th=[ 201], | 70.00th=[ 213], 80.00th=[ 228], 90.00th=[ 249], 95.00th=[ 262], | 99.00th=[ 292], 99.50th=[ 334], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 239, max= 449, per=24.85%, avg=330.72, stdev=51.39, samples=61 iops : min= 59, max= 112, avg=82.23, stdev=12.83, samples=61 lat (msec) : 20=0.04%, 50=0.16%, 100=0.78%, 250=89.53%, 500=9.49% cpu : usr=0.19%, sys=1.14%, ctx=2794, 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=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=180526: Fri Aug 14 20:35:48 2026 write: IOPS=83, BW=333KiB/s (341kB/s)(10.0MiB/30743msec); 0 zone resets slat (usec): min=51, max=17875, avg=335.35, stdev=953.39 clat (msec): min=75, max=335, avg=191.22, stdev=43.73 lat (msec): min=75, max=335, avg=191.56, stdev=43.76 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 129], 10.00th=[ 140], 20.00th=[ 155], | 30.00th=[ 167], 40.00th=[ 178], 50.00th=[ 190], 60.00th=[ 203], | 70.00th=[ 211], 80.00th=[ 226], 90.00th=[ 249], 95.00th=[ 271], | 99.00th=[ 305], 99.50th=[ 313], 99.90th=[ 321], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 207, max= 506, per=24.82%, avg=330.42, stdev=61.32, samples=60 iops : min= 51, max= 126, avg=82.18, stdev=15.31, samples=60 lat (msec) : 100=2.11%, 250=88.16%, 500=9.73% cpu : usr=0.16%, sys=1.23%, ctx=2825, 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=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=180527: Fri Aug 14 20:35:48 2026 write: IOPS=83, BW=336KiB/s (344kB/s)(10.0MiB/30512msec); 0 zone resets slat (usec): min=50, max=13139, avg=338.24, stdev=849.60 clat (msec): min=28, max=335, avg=190.22, stdev=44.03 lat (msec): min=28, max=336, avg=190.57, stdev=44.02 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 123], 10.00th=[ 138], 20.00th=[ 155], | 30.00th=[ 167], 40.00th=[ 178], 50.00th=[ 188], 60.00th=[ 201], | 70.00th=[ 213], 80.00th=[ 226], 90.00th=[ 247], 95.00th=[ 264], | 99.00th=[ 300], 99.50th=[ 317], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 338] bw ( KiB/s): min= 231, max= 568, per=25.12%, avg=334.38, stdev=61.66, samples=60 iops : min= 57, max= 142, avg=83.17, stdev=15.45, samples=60 lat (msec) : 50=0.20%, 100=1.72%, 250=89.18%, 500=8.91% cpu : usr=0.15%, sys=1.36%, ctx=2896, 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=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=1331KiB/s (1363kB/s), 333KiB/s-336KiB/s (341kB/s-344kB/s), io=40.0MiB (41.9MB), run=30512-30772msec 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=180542: Fri Aug 14 20:36:35 2026 read: IOPS=35, BW=144KiB/s (147kB/s)(5048KiB/35141msec) slat (usec): min=2767, max=58695, avg=15295.32, stdev=8786.65 clat (msec): min=30, max=447, avg=208.32, stdev=53.11 lat (msec): min=52, max=468, avg=223.62, stdev=55.34 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 136], 10.00th=[ 146], 20.00th=[ 163], | 30.00th=[ 178], 40.00th=[ 190], 50.00th=[ 203], 60.00th=[ 218], | 70.00th=[ 230], 80.00th=[ 247], 90.00th=[ 279], 95.00th=[ 305], | 99.00th=[ 363], 99.50th=[ 397], 99.90th=[ 426], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 70, max= 216, per=25.24%, avg=143.35, stdev=32.39, samples=69 iops : min= 17, max= 54, avg=35.39, stdev= 8.13, samples=69 write: IOPS=36, BW=148KiB/s (151kB/s)(5192KiB/35141msec); 0 zone resets slat (usec): min=58, max=16038, avg=382.65, stdev=1035.47 clat (msec): min=101, max=433, avg=212.84, stdev=50.71 lat (msec): min=101, max=434, avg=213.22, stdev=50.71 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 138], 10.00th=[ 150], 20.00th=[ 169], | 30.00th=[ 184], 40.00th=[ 197], 50.00th=[ 209], 60.00th=[ 222], | 70.00th=[ 236], 80.00th=[ 253], 90.00th=[ 279], 95.00th=[ 300], | 99.00th=[ 372], 99.50th=[ 393], 99.90th=[ 422], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 55, max= 279, per=24.99%, avg=147.71, stdev=36.52, samples=69 iops : min= 13, max= 69, avg=36.48, stdev= 9.17, samples=69 lat (msec) : 50=0.04%, 100=0.16%, 250=79.34%, 500=20.47% cpu : usr=0.24%, sys=1.88%, ctx=4332, 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=180543: Fri Aug 14 20:36:35 2026 read: IOPS=35, BW=142KiB/s (145kB/s)(4976KiB/35110msec) slat (usec): min=98, max=73628, avg=15422.93, stdev=8866.14 clat (msec): min=32, max=527, avg=206.61, stdev=54.50 lat (msec): min=32, max=552, avg=222.04, stdev=56.31 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 132], 10.00th=[ 146], 20.00th=[ 161], | 30.00th=[ 176], 40.00th=[ 190], 50.00th=[ 201], 60.00th=[ 215], | 70.00th=[ 230], 80.00th=[ 247], 90.00th=[ 275], 95.00th=[ 300], | 99.00th=[ 380], 99.50th=[ 393], 99.90th=[ 477], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 70, max= 240, per=24.90%, avg=141.43, stdev=36.71, samples=69 iops : min= 17, max= 60, avg=34.93, stdev= 9.26, samples=69 write: IOPS=37, BW=150KiB/s (154kB/s)(5264KiB/35110msec); 0 zone resets slat (usec): min=53, max=16072, avg=358.10, stdev=949.49 clat (msec): min=89, max=482, avg=215.95, stdev=52.23 lat (msec): min=89, max=483, avg=216.31, stdev=52.25 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 142], 10.00th=[ 155], 20.00th=[ 171], | 30.00th=[ 184], 40.00th=[ 199], 50.00th=[ 213], 60.00th=[ 226], | 70.00th=[ 241], 80.00th=[ 257], 90.00th=[ 279], 95.00th=[ 300], | 99.00th=[ 368], 99.50th=[ 393], 99.90th=[ 439], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 54, max= 279, per=25.39%, avg=150.07, stdev=38.16, samples=69 iops : min= 13, max= 69, avg=37.06, stdev= 9.55, samples=69 lat (msec) : 50=0.16%, 100=0.20%, 250=78.48%, 500=21.13%, 750=0.04% cpu : usr=0.24%, sys=1.90%, ctx=4417, 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=180544: Fri Aug 14 20:36:35 2026 read: IOPS=35, BW=141KiB/s (145kB/s)(4984KiB/35269msec) slat (usec): min=2417, max=86314, avg=15910.02, stdev=8968.47 clat (msec): min=30, max=415, avg=207.26, stdev=54.03 lat (msec): min=48, max=439, avg=223.18, stdev=55.63 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 132], 10.00th=[ 144], 20.00th=[ 161], | 30.00th=[ 176], 40.00th=[ 190], 50.00th=[ 203], 60.00th=[ 215], | 70.00th=[ 230], 80.00th=[ 251], 90.00th=[ 279], 95.00th=[ 309], | 99.00th=[ 355], 99.50th=[ 376], 99.90th=[ 405], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 64, max= 263, per=24.82%, avg=140.97, stdev=36.02, samples=69 iops : min= 16, max= 65, avg=34.83, stdev= 9.07, samples=69 write: IOPS=37, BW=149KiB/s (153kB/s)(5256KiB/35269msec); 0 zone resets slat (usec): min=56, max=18903, avg=385.96, stdev=1103.20 clat (msec): min=19, max=426, avg=214.63, stdev=51.86 lat (msec): min=23, max=426, avg=215.02, stdev=51.84 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 140], 10.00th=[ 155], 20.00th=[ 171], | 30.00th=[ 186], 40.00th=[ 197], 50.00th=[ 209], 60.00th=[ 226], | 70.00th=[ 243], 80.00th=[ 259], 90.00th=[ 284], 95.00th=[ 309], | 99.00th=[ 351], 99.50th=[ 368], 99.90th=[ 422], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 62, max= 223, per=25.06%, avg=148.09, stdev=36.51, samples=69 iops : min= 15, max= 55, avg=36.59, stdev= 9.16, samples=69 lat (msec) : 20=0.04%, 50=0.12%, 100=0.20%, 250=77.30%, 500=22.34% cpu : usr=0.26%, sys=1.91%, ctx=4422, 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=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=180545: Fri Aug 14 20:36:35 2026 read: IOPS=35, BW=143KiB/s (147kB/s)(5060KiB/35300msec) slat (usec): min=2923, max=73752, avg=15813.78, stdev=9089.64 clat (msec): min=19, max=428, avg=208.28, stdev=53.69 lat (msec): min=29, max=448, avg=224.10, stdev=55.41 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 133], 10.00th=[ 146], 20.00th=[ 161], | 30.00th=[ 178], 40.00th=[ 192], 50.00th=[ 205], 60.00th=[ 218], | 70.00th=[ 234], 80.00th=[ 253], 90.00th=[ 279], 95.00th=[ 305], | 99.00th=[ 355], 99.50th=[ 376], 99.90th=[ 422], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 71, max= 256, per=25.06%, avg=142.32, stdev=35.47, samples=69 iops : min= 17, max= 64, avg=35.16, stdev= 8.89, samples=69 write: IOPS=36, BW=147KiB/s (150kB/s)(5180KiB/35300msec); 0 zone resets slat (usec): min=54, max=16037, avg=321.56, stdev=949.55 clat (msec): min=29, max=440, avg=214.04, stdev=50.97 lat (msec): min=30, max=440, avg=214.37, stdev=50.93 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 142], 10.00th=[ 155], 20.00th=[ 171], | 30.00th=[ 186], 40.00th=[ 197], 50.00th=[ 207], 60.00th=[ 222], | 70.00th=[ 239], 80.00th=[ 255], 90.00th=[ 284], 95.00th=[ 300], | 99.00th=[ 351], 99.50th=[ 363], 99.90th=[ 426], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 70, max= 287, per=24.65%, avg=145.65, stdev=39.07, samples=69 iops : min= 17, max= 71, avg=36.00, stdev= 9.81, samples=69 lat (msec) : 20=0.04%, 50=0.16%, 100=0.27%, 250=77.46%, 500=22.07% cpu : usr=0.20%, sys=1.89%, ctx=4397, 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=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=568KiB/s (582kB/s), 141KiB/s-144KiB/s (145kB/s-147kB/s), io=19.6MiB (20.5MB), run=35110-35300msec WRITE: bw=592KiB/s (606kB/s), 147KiB/s-150KiB/s (150kB/s-154kB/s), io=20.4MiB (21.4MB), run=35110-35300msec 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=180554: Fri Aug 14 20:36:45 2026 read: IOPS=1, BW=67.5MiB/s (70.7MB/s)(40.0MiB/593msec) slat (nsec): min=67798k, max=67798k, avg=67798303.00, stdev= 0.00 clat (nsec): min=473966k, max=473966k, avg=473965535.00, stdev= 0.00 lat (nsec): min=541769k, max=541769k, avg=541769120.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 477], 5.00th=[ 477], 10.00th=[ 477], 20.00th=[ 477], | 30.00th=[ 477], 40.00th=[ 477], 50.00th=[ 477], 60.00th=[ 477], | 70.00th=[ 477], 80.00th=[ 477], 90.00th=[ 477], 95.00th=[ 477], | 99.00th=[ 477], 99.50th=[ 477], 99.90th=[ 477], 99.95th=[ 477], | 99.99th=[ 477] lat (msec) : 500=100.00% cpu : usr=0.34%, sys=2.70%, ctx=10, 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=67.5MiB/s (70.7MB/s), 67.5MiB/s-67.5MiB/s (70.7MB/s-70.7MB/s), io=40.0MiB (41.9MB), run=593-593msec 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