2003-01-31 14:00:37

by Sven Geggus

[permalink] [raw]
Subject: Performance tuning of diskless clients

Hi there,

I'm using a setup of a few dozen Diskless workstations.

The clients are connected using 100MBit switched Ethernet. The server is
connected to the backbone via Gigabit Ethernet.

Whe I do some tests of network trougoutput tests using dd the results are
quite good.

Using Gigabit Ethernet links instead of 100MBit I even get the expected
Performance enhancment by an Order of magnitude.

Anyway, comparing the startup times for Real World bloated^H^H^H^H^H^H^H
Applications like Openoffice. They are at least 3 times faster when started
on the local machine.

BTW, the NFS Directories I'm talking about are mostly mounted Readonly.

At the Moment Server and client are both running vanilla Kernel 2.4.20 on
Debian woody.

Sven

--
"and on the third day he rebooted into Linux-1.3.84"
(Linus Torvalds, Easter Kernel Release 1996)

/me is giggls@ircnet, http://sven.gegg.us/ on the Web


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2003-01-31 16:29:55

by Sven Geggus

[permalink] [raw]
Subject: Re: Performance tuning of diskless clients

Sven Geggus <[email protected]> wrote:

> At the Moment Server and client are both running vanilla Kernel 2.4.20 on
> Debian woody.

Obviously this Information was not enough, as somebody told me by private
Mail.

I already tried tuning the /proc/sys/net/core/*mem_* setting and rsize/wsize
Values which does not seem to have an influence of the slow Startup times of
Bigger Applications.

I didn't try to set this sizes bigger than 8192 though, because this is not
possible without patching the Kernel.

BTW, my question is also aboutv possible Kernel-patches I should probably
use.

Sven

--
"And I'm right. I'm always right, but in this case I'm just a bit more
right than I usually am." (Linus Torvalds, Sunday Aug 27, 2000)

/me is giggls@ircnet, http://sven.gegg.us/ on the Web


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This SF.NET email is sponsored by:
SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See!
http://www.vasoftware.com
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