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一、 网络测试工具iperf
1、安装包
apt-get -y
install
iperf
2、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 102400000
4、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
hdparm
2、hdparm -Tt
/dev/vdb
/dev/vdb
:
Timing cached reads: 19550 MB
in
2.00 seconds = 9786.98 MB
/sec
Timing buffered disk reads: 32 MB
in
3.03 seconds = 10.55 MB
/sec
3、hdparm -Tt --direct
/dev/vdb
/dev/vdb
:
Timing O_DIRECT cached reads: 82 MB
in
2.02 seconds = 40.59 MB
/sec
Timing O_DIRECT disk reads: 124 MB
in
3.00 seconds = 41.28 MB
/sec
4、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
/s
2、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
/s
3、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
/s
4、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
/s
5、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)
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本文转自 xdoujiang 51CTO博客，原文链接：http://blog.51cto.com/7938217/1669463，如需转载请自行联系原作者
