[httperf] (no subject)

Martin Arlitt arlitt at hpl.hp.com
Mon Mar 14 06:57:49 PST 2005


Wengui

for the first item, I would check out http://www.netfilter.org/; you might
have to post to one of their mailing lists.

for the second item,
http://www.ibiblio.org/peanut/Kernel-2.6.10/filesystems/proc.txt
provides a description of lower_zone_protection.

Martin

On Sun, 13 Mar 2005, =?GB2312?Q?Wengui YANG(=D1=EE=CE=C4=B9=F3)?= wrote:

> hello,
>
> 		I am going to test the performance of a web server, and I found some method with
> google to optimize the performance of web server. Then, there are some configurations which
> were used to optimize TCP and virtual memory system. The following lines copy from the file
> --/etc/sysctl.conf.
>
> # TCP optimization
> net.ipv4.netfilter.ip_conntrack_tcp_timeout_syn_recv = 3
> net.ipv4.tcp_syncookies = 1
> net.ipv4.tcp_max_syn_backlog = 8192
> net.ipv4.tcp_fin_timeout = 30
> net.ipv4.tcp_keepalive_time = 1800
> net.ipv4.tcp_window_scaling = 0
> net.ipv4.tcp_sack = 0
> net.ipv4.tcp_timestamps = 0
> # vm optimization
> vm.lower_zone_protection = 100
>
> who could send me detail information on the following two items:
>
> net.ipv4.netfilter.ip_conntrack_tcp_timeout_syn_recv = 3
> vm.lower_zone_protection = 100
>
> Thanks in advance!
>
>         Wengui YANG(杨文贵)
>         wgyang at mailst.xjtu.edu.cn
>           2005-03-13
>
>
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>


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