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- 4K block size – 100% Reads
- fio --name=randread --rw=randread --direct=0 --ioengine=sync --bs=4k --numjobs=1 --size=1G --runtime=600
- randread: (groupid=0, jobs=1): err= 0: pid=3564: Mon Mar 16 07:59:01 2020
- read : io=1024.0MB, bw=186149KB/s, iops=46537, runt= 5633msec
- clat (usec): min=2, max=311, avg=20.25, stdev= 8.21
- lat (usec): min=2, max=311, avg=20.45, stdev= 8.21
- clat percentiles (usec):
- | 1.00th=[ 2], 5.00th=[ 3], 10.00th=[ 4], 20.00th=[ 19],
- | 30.00th=[ 21], 40.00th=[ 22], 50.00th=[ 23], 60.00th=[ 24],
- | 70.00th=[ 24], 80.00th=[ 25], 90.00th=[ 27], 95.00th=[ 28],
- | 99.00th=[ 31], 99.50th=[ 36], 99.90th=[ 43], 99.95th=[ 46],
- | 99.99th=[ 66]
- lat (usec) : 4=6.35%, 10=11.84%, 20=2.04%, 50=79.75%, 100=0.03%
- lat (usec) : 250=0.01%, 500=0.01%
- cpu : usr=4.10%, sys=95.83%, ctx=16, majf=0, minf=18
- 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 : total=r=262144/w=0/d=0, short=r=0/w=0/d=0, drop=r=0/w=0/d=0
- latency : target=0, window=0, percentile=100.00%, depth=1
- Run status group 0 (all jobs):
- READ: io=1024.0MB, aggrb=186148KB/s, minb=186148KB/s, maxb=186148KB/s, mint=5633msec, maxt=5633msec
- ----------------------------------------------------------------------------------------------------
- 8K block size – 100% Reads
- fio --name=randread --rw=randread --direct=0 --ioengine=sync --bs=8k --numjobs=1 --size=1G --runtime=600
- randread: (groupid=0, jobs=1): err= 0: pid=12394: Mon Mar 16 08:03:06 2020
- read : io=1024.0MB, bw=403143KB/s, iops=50392, runt= 2601msec
- clat (usec): min=2, max=177, avg=18.70, stdev= 8.32
- lat (usec): min=2, max=177, avg=18.89, stdev= 8.32
- clat percentiles (usec):
- | 1.00th=[ 2], 5.00th=[ 3], 10.00th=[ 4], 20.00th=[ 5],
- | 30.00th=[ 20], 40.00th=[ 21], 50.00th=[ 22], 60.00th=[ 23],
- | 70.00th=[ 23], 80.00th=[ 24], 90.00th=[ 25], 95.00th=[ 27],
- | 99.00th=[ 29], 99.50th=[ 33], 99.90th=[ 42], 99.95th=[ 44],
- | 99.99th=[ 63]
- lat (usec) : 4=8.16%, 10=13.53%, 20=5.06%, 50=73.22%, 100=0.04%
- lat (usec) : 250=0.01%
- cpu : usr=3.65%, sys=96.31%, ctx=4, majf=0, minf=17
- 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 : total=r=131072/w=0/d=0, short=r=0/w=0/d=0, drop=r=0/w=0/d=0
- latency : target=0, window=0, percentile=100.00%, depth=1
- Run status group 0 (all jobs):
- READ: io=1024.0MB, aggrb=403143KB/s, minb=403143KB/s, maxb=403143KB/s, mint=2601msec, maxt=2601msec
- ----------------------------------------------------------------------------------------------------
- 16K block size – 100% Reads
- fio --name=randread --rw=randread --direct=0 --ioengine=sync --bs=16k --numjobs=1 --size=1G --runtime=600
- randread: (groupid=0, jobs=1): err= 0: pid=13079: Mon Mar 16 08:03:25 2020
- read : io=1024.0MB, bw=887120KB/s, iops=55445, runt= 1182msec
- clat (usec): min=2, max=207, avg=16.83, stdev= 7.52
- lat (usec): min=2, max=207, avg=17.02, stdev= 7.52
- clat percentiles (usec):
- | 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 4], 20.00th=[ 5],
- | 30.00th=[ 19], 40.00th=[ 20], 50.00th=[ 20], 60.00th=[ 21],
- | 70.00th=[ 21], 80.00th=[ 22], 90.00th=[ 22], 95.00th=[ 23],
- | 99.00th=[ 26], 99.50th=[ 29], 99.90th=[ 37], 99.95th=[ 47],
- | 99.99th=[ 71]
- lat (usec) : 4=5.65%, 10=18.78%, 20=12.62%, 50=62.92%, 100=0.04%
- lat (usec) : 250=0.01%
- cpu : usr=4.66%, sys=95.09%, ctx=4, majf=0, minf=15
- 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 : total=r=65536/w=0/d=0, short=r=0/w=0/d=0, drop=r=0/w=0/d=0
- latency : target=0, window=0, percentile=100.00%, depth=1
- Run status group 0 (all jobs):
- READ: io=1024.0MB, aggrb=887120KB/s, minb=887120KB/s, maxb=887120KB/s, mint=1182msec, maxt=1182msec
- ----------------------------------------------------------------------------------------------------
- 32K block size – 100% Reads
- fio --name=randread --rw=randread --direct=0 --ioengine=sync --bs=32k --numjobs=1 --size=1G --runtime=600
- randread: (groupid=0, jobs=1): err= 0: pid=13505: Mon Mar 16 08:03:39 2020
- read : io=1024.0MB, bw=1521.6MB/s, iops=48689, runt= 673msec
- clat (usec): min=2, max=83, avg=19.39, stdev= 7.84
- lat (usec): min=2, max=83, avg=19.58, stdev= 7.84
- clat percentiles (usec):
- | 1.00th=[ 3], 5.00th=[ 5], 10.00th=[ 6], 20.00th=[ 7],
- | 30.00th=[ 21], 40.00th=[ 22], 50.00th=[ 22], 60.00th=[ 23],
- | 70.00th=[ 24], 80.00th=[ 25], 90.00th=[ 26], 95.00th=[ 27],
- | 99.00th=[ 30], 99.50th=[ 35], 99.90th=[ 44], 99.95th=[ 51],
- | 99.99th=[ 75]
- lat (usec) : 4=3.85%, 10=18.30%, 20=2.96%, 50=74.84%, 100=0.05%
- cpu : usr=4.61%, sys=94.79%, ctx=1, majf=0, minf=13
- 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 : total=r=32768/w=0/d=0, short=r=0/w=0/d=0, drop=r=0/w=0/d=0
- latency : target=0, window=0, percentile=100.00%, depth=1
- Run status group 0 (all jobs):
- READ: io=1024.0MB, aggrb=1521.6MB/s, minb=1521.6MB/s, maxb=1521.6MB/s, mint=673msec, maxt=673msec
- ----------------------------------------------------------------------------------------------------
- 64K block size – 100% Reads
- fio --name=randread --rw=randread --direct=0 --ioengine=sync --bs=64k --numjobs=1 --size=1G --runtime=600
- randread: (groupid=0, jobs=1): err= 0: pid=13823: Mon Mar 16 08:03:51 2020
- read : io=1024.0MB, bw=3020.7MB/s, iops=48330, runt= 339msec
- clat (usec): min=3, max=76, avg=19.54, stdev= 5.65
- lat (usec): min=3, max=76, avg=19.73, stdev= 5.66
- clat percentiles (usec):
- | 1.00th=[ 4], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 19],
- | 30.00th=[ 20], 40.00th=[ 20], 50.00th=[ 21], 60.00th=[ 21],
- | 70.00th=[ 22], 80.00th=[ 23], 90.00th=[ 24], 95.00th=[ 25],
- | 99.00th=[ 27], 99.50th=[ 31], 99.90th=[ 47], 99.95th=[ 50],
- | 99.99th=[ 68]
- lat (usec) : 4=0.21%, 10=13.80%, 20=9.41%, 50=76.53%, 100=0.05%
- cpu : usr=4.44%, sys=95.27%, ctx=1, majf=0, minf=21
- 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 : total=r=16384/w=0/d=0, short=r=0/w=0/d=0, drop=r=0/w=0/d=0
- latency : target=0, window=0, percentile=100.00%, depth=1
- Run status group 0 (all jobs):
- READ: io=1024.0MB, aggrb=3020.7MB/s, minb=3020.7MB/s, maxb=3020.7MB/s, mint=339msec, maxt=339msec
- ----------------------------------------------------------------------------------------------------
- 128K block size – 100% Reads
- fio --name=randread --rw=randread --direct=0 --ioengine=sync --bs=128k --numjobs=1 --size=1G --runtime=600
- randread: (groupid=0, jobs=1): err= 0: pid=14299: Mon Mar 16 08:04:04 2020
- read : io=1024.0MB, bw=4697.3MB/s, iops=37577, runt= 218msec
- clat (usec): min=14, max=74, avg=25.47, stdev= 2.70
- lat (usec): min=14, max=75, avg=25.65, stdev= 2.71
- clat percentiles (usec):
- | 1.00th=[ 21], 5.00th=[ 22], 10.00th=[ 23], 20.00th=[ 24],
- | 30.00th=[ 24], 40.00th=[ 25], 50.00th=[ 25], 60.00th=[ 26],
- | 70.00th=[ 26], 80.00th=[ 27], 90.00th=[ 28], 95.00th=[ 29],
- | 99.00th=[ 33], 99.50th=[ 40], 99.90th=[ 45], 99.95th=[ 47],
- | 99.99th=[ 74]
- lat (usec) : 20=0.23%, 50=99.73%, 100=0.04%
- cpu : usr=3.23%, sys=96.31%, ctx=1, majf=0, minf=41
- 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 : total=r=8192/w=0/d=0, short=r=0/w=0/d=0, drop=r=0/w=0/d=0
- latency : target=0, window=0, percentile=100.00%, depth=1
- Run status group 0 (all jobs):
- READ: io=1024.0MB, aggrb=4697.3MB/s, minb=4697.3MB/s, maxb=4697.3MB/s, mint=218msec, maxt=218msec
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