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一、 网络测试工具iperf
1、安装包
apt-get -y install iperf2、参数说明
-s, --server    run in server mode(以server模式启动)
-c, --client    <host> run in client mode, connecting to <host>(以client模式启动)
-p, --port      n set server port to listen on/connect to to n (default 5001)指定服务器端使用的端口或客户端所连接的端口
-m, --print_mss print TCP maximum segment size (MTU - TCP/IP header)显示tcp最大mtu值
-f, --format    [kmKM] format to report: Kbits, Mbits, KBytes, MBytes(分别表示以Kbits, Mbits, KBytes, MBytes显示报告)
-i, --interval  n pause n seconds between periodic bandwidth reports(间隔时间)
-t, --time      n time in seconds to transmit for (default 10 secs)(默认10秒 连接时间)
-n, --num       n[KM] number of bytes to transmit (instead of -t)(传输大小是字节)
-w              TCP_WINDOW_SIZE Controls the size of TCP buffers(tcp)3、购买的云主机服务器(监听在9999端口 本机外网ip 1.1.1.1)
iperf -s -p 9999 -m -w 1024000004、公司内网客户端(连接服务端1.1.1.1)总连接时间200秒 服务端端口是9999 传输数据大小是10M左右)
iperf -c 1.1.1.1 -t 200 -f m -p 9999 -n 10240000 -w 102400000
------------------------------------------------------------
Client connecting to 1.1.1.1, TCP port 9999
TCP window size: 0.24 MByte (WARNING: requested 97.7 MByte)
------------------------------------------------------------
[  3] local 10.1.10.250 port 41193 connected with 1.1.1.1 port 9999
[ ID] Interval       Transfer     Bandwidth
[  3]  0.0-20.2 sec  9.77 MBytes  4.06 Mbits/sec
总结:因公司环境因素 测试我云主机的服务器带宽才500KB(网卡in数据)二、磁盘测试工具hdparm
1、安装包
apt-get -y install hdparm2、hdparm -Tt /dev/vdb
/dev/vdb:Timing cached reads:   19550 MB in  2.00 seconds = 9786.98 MB/secTiming buffered disk reads:  32 MB in  3.03 seconds =  10.55 MB/sec3、hdparm -Tt --direct /dev/vdb
/dev/vdb:Timing O_DIRECT cached reads:    82 MB in  2.02 seconds =  40.59 MB/secTiming O_DIRECT disk reads: 124 MB in  3.00 seconds =  41.28 MB/sec4、参数说明
-T       Perform timings of cache reads for benchmark and comparison purposes(测试硬盘读缓存的速度)
-t       Perform timings of device reads for benchmark and comparison purposes(测试硬盘读速度(不经过磁盘cache))
--direct Use the kernels "O_DIRECT" flag when performing a -t timing test(直接硬盘读测试)三、磁盘测试工具dd
1、速度最慢的
dd bs=64k count=4k if=/dev/zero of=test oflag=dsync
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 307.7 s, 872 kB/s2、比较常用的测试
dd bs=64k count=4k if=/dev/zero of=test conv=fdatasync
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 89.2378 s, 3.0 MB/s3、比较常用的测试
dd bs=64k count=4k if=/dev/zero of=test conv=fsync
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 63.9118 s, 4.2 MB/s4、带缓存的测试
dd bs=64k count=4k if=/dev/zero of=test
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 0.321234 s, 836 MB/s5、参数说明
dsync        use synchronized I/O for data
fdatasync    physically write output file data before finishing
fsync        likewise, but also write metadata
conv=CONVS   convert the file as per the comma separated symbol list
oflag=FLAGS  write as per the comma separated symbol list
bs=BYTES     read and write up to BYTES bytes at a time(同时设置读/写缓冲区的字节数)
count=BLOCKS copy only BLOCKS input blocks(只拷贝输入的blocks块)