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ZFS (mmap) 50:50 randrw RAID10 fio config
rw5050: (g=0): rw=randrw, bs=4K-4K/4K-4K/4K-4K, ioengine=mmap, iodepth=32
...
fio-2.1.9
Starting 4 processes
rw5050: Laying out IO file(s) (1 file(s) / 25600MB)
rw5050: Laying out IO file(s) (1 file(s) / 25600MB)
rw5050: Laying out IO file(s) (1 file(s) / 25600MB)
rw5050: Laying out IO file(s) (1 file(s) / 25600MB)
rw5050: (groupid=0, jobs=4): err= 0: pid=59426: Wed Jun 18 05:44:45 2014
Description : ["random 50/50"]
read : io=4650.8MB, bw=7937.3KB/s, iops=1984, runt=600002msec
clat (usec): min=6, max=819309, avg=857.14, stdev=2002.87
lat (usec): min=6, max=819309, avg=857.34, stdev=2002.87
clat percentiles (usec):
| 1.00th=[ 9], 5.00th=[ 16], 10.00th=[ 370], 20.00th=[ 414],
| 30.00th=[ 450], 40.00th=[ 506], 50.00th=[ 556], 60.00th=[ 604],
| 70.00th=[ 668], 80.00th=[ 860], 90.00th=[ 2160], 95.00th=[ 2864],
| 99.00th=[ 3408], 99.50th=[ 5280], 99.90th=[15040], 99.95th=[15168],
| 99.99th=[15552]
bw (KB /s): min= 0, max= 5048, per=25.14%, avg=1995.31, stdev=742.85
write: io=4652.4MB, bw=7939.2KB/s, iops=1984, runt=600002msec
clat (usec): min=6, max=804161, avg=1153.09, stdev=5118.44
lat (usec): min=6, max=804162, avg=1153.34, stdev=5118.44
clat percentiles (usec):
| 1.00th=[ 10], 5.00th=[ 18], 10.00th=[ 374], 20.00th=[ 418],
| 30.00th=[ 454], 40.00th=[ 510], 50.00th=[ 564], 60.00th=[ 604],
| 70.00th=[ 668], 80.00th=[ 900], 90.00th=[ 2256], 95.00th=[ 2896],
| 99.00th=[ 4768], 99.50th=[15296], 99.90th=[73216], 99.95th=[95744],
| 99.99th=[199680]
bw (KB /s): min= 25, max= 5216, per=25.16%, avg=1997.64, stdev=732.69
lat (usec) : 10=0.80%, 20=4.86%, 50=1.32%, 100=0.09%, 250=0.02%
lat (usec) : 500=31.55%, 750=37.81%, 1000=5.09%
lat (msec) : 2=7.40%, 4=10.21%, 10=0.21%, 20=0.41%, 50=0.11%
lat (msec) : 100=0.10%, 250=0.02%, 1000=0.01%
cpu : usr=0.41%, sys=3.94%, ctx=2454661, majf=2427346, minf=96
IO depths : 1=101.9%, 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=1190584/w=1191002/d=0, short=r=0/w=0/d=0
latency : target=0, window=0, percentile=100.00%, depth=32
Run status group 0 (all jobs):
READ: io=4650.8MB, aggrb=7937KB/s, minb=7937KB/s, maxb=7937KB/s, mint=600002msec, maxt=600002msec
WRITE: io=4652.4MB, aggrb=7939KB/s, minb=7939KB/s, maxb=7939KB/s, mint=600002msec, maxt=600002msec
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