== sanity test 398c: run fio to test AIO ================= 20:14:48 (1787703288) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.536773 s, 78.1 MB/s osc.lustre-OST0000-osc-ffff88aed8b59800.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=179243: Tue Aug 25 20:15:29 2026 write: IOPS=84, BW=339KiB/s (347kB/s)(10.0MiB/30249msec); 0 zone resets slat (usec): min=28, max=25490, avg=174.17, stdev=806.78 clat (msec): min=28, max=388, avg=187.79, stdev=42.50 lat (msec): min=28, max=388, avg=187.96, stdev=42.52 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 129], 10.00th=[ 136], 20.00th=[ 150], | 30.00th=[ 161], 40.00th=[ 174], 50.00th=[ 186], 60.00th=[ 199], | 70.00th=[ 211], 80.00th=[ 224], 90.00th=[ 243], 95.00th=[ 262], | 99.00th=[ 292], 99.50th=[ 300], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 191, max= 510, per=24.92%, avg=337.43, stdev=73.82, samples=60 iops : min= 47, max= 127, avg=83.92, stdev=18.53, samples=60 lat (msec) : 50=0.04%, 100=1.52%, 250=90.31%, 500=8.12% cpu : usr=0.13%, sys=0.87%, ctx=1971, 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=179244: Tue Aug 25 20:15:29 2026 write: IOPS=84, BW=339KiB/s (347kB/s)(10.0MiB/30182msec); 0 zone resets slat (usec): min=28, max=14881, avg=148.62, stdev=646.48 clat (msec): min=87, max=306, avg=187.52, stdev=40.59 lat (msec): min=87, max=306, avg=187.67, stdev=40.61 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 127], 10.00th=[ 136], 20.00th=[ 150], | 30.00th=[ 161], 40.00th=[ 174], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 211], 80.00th=[ 224], 90.00th=[ 243], 95.00th=[ 255], | 99.00th=[ 292], 99.50th=[ 296], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 231, max= 507, per=24.92%, avg=337.42, stdev=68.30, samples=60 iops : min= 57, max= 126, avg=83.92, stdev=17.09, samples=60 lat (msec) : 100=0.55%, 250=93.63%, 500=5.82% cpu : usr=0.13%, sys=0.73%, ctx=1802, 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=179245: Tue Aug 25 20:15:29 2026 write: IOPS=85, BW=341KiB/s (349kB/s)(10.0MiB/30013msec); 0 zone resets slat (usec): min=23, max=15915, avg=210.18, stdev=759.35 clat (msec): min=15, max=517, avg=187.12, stdev=45.11 lat (msec): min=16, max=517, avg=187.33, stdev=45.08 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 127], 10.00th=[ 136], 20.00th=[ 150], | 30.00th=[ 161], 40.00th=[ 174], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 207], 80.00th=[ 222], 90.00th=[ 241], 95.00th=[ 257], | 99.00th=[ 300], 99.50th=[ 305], 99.90th=[ 518], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 250, max= 523, per=25.26%, avg=342.00, stdev=64.14, samples=59 iops : min= 62, max= 130, avg=85.07, stdev=16.09, samples=59 lat (msec) : 20=0.08%, 50=0.16%, 100=0.66%, 250=91.80%, 500=6.99% lat (msec) : 750=0.31% cpu : usr=0.19%, sys=0.94%, ctx=2953, 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=179246: Tue Aug 25 20:15:29 2026 write: IOPS=84, BW=339KiB/s (347kB/s)(10.0MiB/30248msec); 0 zone resets slat (usec): min=28, max=16281, avg=142.25, stdev=572.19 clat (msec): min=41, max=298, avg=187.68, stdev=40.81 lat (msec): min=42, max=298, avg=187.82, stdev=40.79 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 130], 10.00th=[ 138], 20.00th=[ 150], | 30.00th=[ 161], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 199], | 70.00th=[ 209], 80.00th=[ 222], 90.00th=[ 245], 95.00th=[ 262], | 99.00th=[ 288], 99.50th=[ 292], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 138, max= 510, per=24.86%, avg=336.65, stdev=75.65, samples=60 iops : min= 34, max= 127, avg=83.73, stdev=18.97, samples=60 lat (msec) : 50=0.08%, 100=0.82%, 250=91.17%, 500=7.93% cpu : usr=0.11%, sys=0.69%, ctx=1607, 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=1354KiB/s (1387kB/s), 339KiB/s-341KiB/s (347kB/s-349kB/s), io=40.0MiB (41.9MB), run=30013-30249msec 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=179260: Tue Aug 25 20:16:14 2026 read: IOPS=35, BW=142KiB/s (145kB/s)(5048KiB/35609msec) slat (usec): min=34, max=80221, avg=15852.22, stdev=9672.07 clat (msec): min=24, max=420, avg=211.15, stdev=55.32 lat (msec): min=30, max=433, avg=227.01, stdev=57.38 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 134], 10.00th=[ 150], 20.00th=[ 165], | 30.00th=[ 180], 40.00th=[ 190], 50.00th=[ 203], 60.00th=[ 220], | 70.00th=[ 239], 80.00th=[ 255], 90.00th=[ 284], 95.00th=[ 313], | 99.00th=[ 363], 99.50th=[ 380], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 71, max= 224, per=25.46%, avg=141.57, stdev=37.66, samples=70 iops : min= 17, max= 56, avg=34.91, stdev= 9.47, samples=70 write: IOPS=36, BW=146KiB/s (149kB/s)(5192KiB/35609msec); 0 zone resets slat (usec): min=30, max=15255, avg=218.64, stdev=852.10 clat (msec): min=49, max=461, avg=217.08, stdev=55.64 lat (msec): min=49, max=461, avg=217.31, stdev=55.67 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 142], 10.00th=[ 155], 20.00th=[ 171], | 30.00th=[ 184], 40.00th=[ 199], 50.00th=[ 209], 60.00th=[ 224], | 70.00th=[ 241], 80.00th=[ 259], 90.00th=[ 292], 95.00th=[ 321], | 99.00th=[ 380], 99.50th=[ 397], 99.90th=[ 435], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 80, max= 253, per=25.18%, avg=145.80, stdev=35.81, samples=70 iops : min= 20, max= 63, avg=35.99, stdev= 8.98, samples=70 lat (msec) : 50=0.16%, 100=0.43%, 250=76.02%, 500=23.40% cpu : usr=0.28%, sys=1.54%, ctx=4311, 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=179261: Tue Aug 25 20:16:14 2026 read: IOPS=34, BW=138KiB/s (141kB/s)(4976KiB/36066msec) slat (usec): min=136, max=86633, avg=16126.65, stdev=9710.69 clat (msec): min=36, max=537, avg=212.63, stdev=57.79 lat (msec): min=36, max=551, avg=228.77, stdev=59.56 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 136], 10.00th=[ 150], 20.00th=[ 167], | 30.00th=[ 178], 40.00th=[ 192], 50.00th=[ 205], 60.00th=[ 220], | 70.00th=[ 236], 80.00th=[ 255], 90.00th=[ 288], 95.00th=[ 321], | 99.00th=[ 368], 99.50th=[ 397], 99.90th=[ 518], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 23, max= 222, per=24.57%, avg=136.61, stdev=35.92, samples=71 iops : min= 5, max= 55, avg=33.68, stdev= 9.01, samples=71 write: IOPS=36, BW=146KiB/s (149kB/s)(5264KiB/36066msec); 0 zone resets slat (usec): min=29, max=14229, avg=214.20, stdev=803.82 clat (msec): min=35, max=517, avg=219.18, stdev=54.66 lat (msec): min=36, max=517, avg=219.39, stdev=54.68 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 144], 10.00th=[ 161], 20.00th=[ 176], | 30.00th=[ 188], 40.00th=[ 201], 50.00th=[ 211], 60.00th=[ 226], | 70.00th=[ 241], 80.00th=[ 259], 90.00th=[ 292], 95.00th=[ 317], | 99.00th=[ 368], 99.50th=[ 418], 99.90th=[ 510], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 63, max= 246, per=25.10%, avg=145.35, stdev=38.44, samples=71 iops : min= 15, max= 61, avg=35.86, stdev= 9.66, samples=71 lat (msec) : 50=0.16%, 100=0.62%, 250=75.59%, 500=23.48%, 750=0.16% cpu : usr=0.22%, sys=1.34%, ctx=3632, 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=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=179262: Tue Aug 25 20:16:14 2026 read: IOPS=34, BW=139KiB/s (142kB/s)(4984KiB/35981msec) slat (usec): min=2497, max=66908, avg=16091.67, stdev=9385.61 clat (msec): min=45, max=465, avg=211.48, stdev=56.70 lat (msec): min=62, max=474, avg=227.57, stdev=58.82 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 133], 10.00th=[ 146], 20.00th=[ 165], | 30.00th=[ 178], 40.00th=[ 190], 50.00th=[ 203], 60.00th=[ 222], | 70.00th=[ 239], 80.00th=[ 257], 90.00th=[ 288], 95.00th=[ 317], | 99.00th=[ 359], 99.50th=[ 388], 99.90th=[ 456], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 22, max= 232, per=24.94%, avg=138.66, stdev=42.21, samples=71 iops : min= 5, max= 58, avg=34.18, stdev=10.61, samples=71 write: IOPS=36, BW=146KiB/s (150kB/s)(5256KiB/35981msec); 0 zone resets slat (usec): min=25, max=13713, avg=212.36, stdev=742.28 clat (msec): min=31, max=403, avg=218.37, stdev=53.53 lat (msec): min=31, max=403, avg=218.58, stdev=53.55 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 142], 10.00th=[ 159], 20.00th=[ 176], | 30.00th=[ 188], 40.00th=[ 199], 50.00th=[ 209], 60.00th=[ 224], | 70.00th=[ 241], 80.00th=[ 264], 90.00th=[ 292], 95.00th=[ 321], | 99.00th=[ 359], 99.50th=[ 393], 99.90th=[ 401], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 38, max= 253, per=25.10%, avg=145.32, stdev=41.84, samples=71 iops : min= 9, max= 63, avg=35.86, stdev=10.48, samples=71 lat (msec) : 50=0.12%, 100=0.55%, 250=75.20%, 500=24.14% cpu : usr=0.26%, sys=1.37%, ctx=3831, 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=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=179263: Tue Aug 25 20:16:14 2026 read: IOPS=35, BW=141KiB/s (144kB/s)(5060KiB/35977msec) slat (usec): min=2691, max=69003, avg=15590.21, stdev=9399.18 clat (msec): min=65, max=427, avg=212.14, stdev=56.69 lat (msec): min=70, max=449, avg=227.73, stdev=58.89 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 133], 10.00th=[ 148], 20.00th=[ 165], | 30.00th=[ 178], 40.00th=[ 190], 50.00th=[ 205], 60.00th=[ 218], | 70.00th=[ 236], 80.00th=[ 255], 90.00th=[ 292], 95.00th=[ 326], | 99.00th=[ 376], 99.50th=[ 388], 99.90th=[ 409], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 38, max= 253, per=25.26%, avg=140.42, stdev=36.10, samples=71 iops : min= 9, max= 63, avg=34.63, stdev= 9.09, samples=71 write: IOPS=35, BW=144KiB/s (147kB/s)(5180KiB/35977msec); 0 zone resets slat (usec): min=33, max=12815, avg=212.82, stdev=758.71 clat (msec): min=57, max=487, avg=218.76, stdev=56.76 lat (msec): min=57, max=487, avg=218.98, stdev=56.77 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 140], 10.00th=[ 159], 20.00th=[ 174], | 30.00th=[ 186], 40.00th=[ 199], 50.00th=[ 211], 60.00th=[ 224], | 70.00th=[ 243], 80.00th=[ 264], 90.00th=[ 292], 95.00th=[ 330], | 99.00th=[ 380], 99.50th=[ 409], 99.90th=[ 460], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 47, max= 256, per=24.74%, avg=143.23, stdev=40.56, samples=71 iops : min= 11, max= 64, avg=35.34, stdev=10.16, samples=71 lat (msec) : 100=0.55%, 250=75.31%, 500=24.14% cpu : usr=0.19%, sys=1.53%, ctx=4295, 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=556KiB/s (570kB/s), 138KiB/s-142KiB/s (141kB/s-145kB/s), io=19.6MiB (20.5MB), run=35609-36066msec WRITE: bw=579KiB/s (593kB/s), 144KiB/s-146KiB/s (147kB/s-150kB/s), io=20.4MiB (21.4MB), run=35609-36066msec 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=179273: Tue Aug 25 20:16:30 2026 read: IOPS=1, BW=59.3MiB/s (62.1MB/s)(40.0MiB/675msec) slat (nsec): min=38416k, max=38416k, avg=38416403.00, stdev= 0.00 clat (nsec): min=611699k, max=611699k, avg=611699246.00, stdev= 0.00 lat (nsec): min=650120k, max=650120k, avg=650119898.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 609], 5.00th=[ 609], 10.00th=[ 609], 20.00th=[ 609], | 30.00th=[ 609], 40.00th=[ 609], 50.00th=[ 609], 60.00th=[ 609], | 70.00th=[ 609], 80.00th=[ 609], 90.00th=[ 609], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.78%, ctx=10, 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=59.3MiB/s (62.1MB/s), 59.3MiB/s-59.3MiB/s (62.1MB/s-62.1MB/s), io=40.0MiB (41.9MB), run=675-675msec 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