Hi,
I want to known why net recv 91MB/s, read only 22MB/s when do FIO read
test.
when I set cache-size=2GB or disable open-behind, this phenomenon
disappears.
thanks.
gluster 3.4.5 (default configure)
centos 6.5
replica 2, 2 server
client do FIO test
FIO command:
fio -directory=/mnt/dzq -direct=1 -ioengine=sync -rw=read -bs=32K -size=1G
-numjobs=8 -runtime=60 -ramp_time=20 -exitall -group_reporting -name=glfs_test
output:
glfs_test: (g=0): rw=read, bs=32K-32K/32K-32K/32K-32K, ioengine=sync, iodepth=1
...
fio-2.1.13
Starting 8 processes
read : io=1327.3MB, bw=22647KB/s, iops=707, runt= 60012msec
# dstat -nN eth1,total
--net/eth1---net/total-
recv send: recv send
91M 1977k: 91M 1977k
91M 1969k: 91M 1969k
91M 1986k: 91M 1986k
90M 1972k: 90M 1972k
......
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