tags 353965 + upstream
thanks

It seems a job for sendfile(2)...

On Wed, Feb 22, 2006 at 08:16:26PM +1000, Andrew Meaden wrote:
> Package: imapfilter
> Version: 1:1.1.1-1
> Severity: normal
> 
> imapfilter utilises as much CPU as it can get its hands on while moving
> email from one imap server (locally accessable via the loopback
> interface) to a remote one. The process appears to correctly perform
> it's job, and the bottleneck is still the upsteam speed of my internet
> link; however for the duration of this upload, the process sits on 99.2%
> CPU, only releasing some when anything else requires it.
> 
> This also causes the load on the machine to climb to 1 higher than it
> started, and apart from causing relatively minor slowdowns elsewhere in
> the machine, does not seem to impede the success of the imapfilter run.
> 
> If I lower my upstream rate by 75%, the process uses 400% more CPU time
> (overall) to run. If I enable compression on the VPN link, the CPU time
> required drops also, keeping the link between the process and the remote
> IMAP server completely utilised.
> 
> -- System Information:
> Debian Release: testing/unstable
>   APT prefers unstable
>   APT policy: (500, 'unstable')
> Architecture: i386 (i686)
> Shell:  /bin/sh linked to /bin/bash
> Kernel: Linux 2.6.15-captainnem
> Locale: LANG=en_AU, LC_CTYPE=en_AU (charmap=ISO-8859-1)
> 
> Versions of packages imapfilter depends on:
> ii  libc6                         2.3.6-1    GNU C Library: Shared libraries 
> an
> ii  liblua50                      5.0.2-5.1  Main interpreter library for the 
> L
> ii  liblualib50                   5.0.2-5.1  Extension library for the Lua 
> 5.0 
> ii  libssl0.9.8                   0.9.8a-7   SSL shared libraries
> 
> imapfilter recommends no packages.
> 
> -- debconf-show failed

-- 
Francesco P. Lovergine


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