Centos6 下使用qperf测量网络带宽和延迟

朱雀 2022-09-18 13:49 385阅读 0赞

以往经常使用的iperf主要用来测试网络带宽，这里的qperf既可以测试网络带宽也可测试延迟，当然也包括一些其他功能。

# 安装 #

#yum install qperf

# 使用 #

在被测试端启动qperf

#qperf

在测试主机上启动qperf用来测试带宽以及延迟

[root@eucahgc ~]# qperf 10.10.200.241 tcp_bw tcp_lat conf
    tcp_bw:
        bw  =  117 MB/sec
    tcp_lat:
        latency  =  109 us
    conf:
        loc_node   =  eucahgc.hgctech.com
        loc_cpu    =  8 Cores: Intel Xeon  E5620 @ 2.40GHz
        loc_os     =  Linux 2.6.32-358.23.2.el6.x86_64
        loc_qperf  =  0.4.6
        rem_node   =  euca-10-10-200-241.eucalyptus.internal
        rem_cpu    =  QEMU Virtual version (cpu64-rhel6) 2.4GHz
        rem_os     =  Linux 2.6.32-71.el6.x86_64
        rem_qperf  =  0.4.6

被测主机为ecualyptus+KVM创建的VM，测试带宽为117MB/S，延迟为109us。

也改变消息的大小（msg\_size），从1个字节到64K，每次倍增的方式，通过测试来查看带宽和延迟的变化情况

[root@eucahgc ~]# qperf -oo msg_size:1:64K:*2 10.10.200.241 tcp_bw tcp_lat
    tcp_bw:
        bw  =  2.13 MB/sec
    tcp_bw:
        bw  =  3.69 MB/sec
    tcp_bw:
        bw  =  6.11 MB/sec
    tcp_bw:
        bw  =  12.5 MB/sec
    tcp_bw:
        bw  =  29 MB/sec
    tcp_bw:
        bw  =  64.4 MB/sec
    tcp_bw:
        bw  =  100 MB/sec
    tcp_bw:
        bw  =  117 MB/sec
    tcp_bw:
        bw  =  118 MB/sec
    tcp_bw:
        bw  =  117 MB/sec
    tcp_bw:
        bw  =  117 MB/sec
    tcp_bw:
        bw  =  117 MB/sec
    tcp_bw:
        bw  =  117 MB/sec
    tcp_bw:
        bw  =  117 MB/sec
    tcp_bw:
        bw  =  117 MB/sec
    tcp_bw:
        bw  =  117 MB/sec
    tcp_bw:
        bw  =  117 MB/sec
    tcp_lat:
        latency  =  78.2 us
    tcp_lat:
        latency  =  167 us
    tcp_lat:
        latency  =  162 us
    tcp_lat:
        latency  =  153 us
    tcp_lat:
        latency  =  137 us
    tcp_lat:
        latency  =  73.9 us
    tcp_lat:
        latency  =  76.1 us
    tcp_lat:
        latency  =  126 us
    tcp_lat:
        latency  =  160 us
    tcp_lat:
        latency  =  174 us
    tcp_lat:
        latency  =  183 us
    tcp_lat:
        latency  =  163 us
    tcp_lat:
        latency  =  184 us
    tcp_lat:
        latency  =  205 us
    tcp_lat:
        latency  =  330 us
    tcp_lat:
        latency  =  454 us
    tcp_lat:
        latency  =  793 us