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Generally speaking you should consider plugging in more memory. In case of heavy swap activities system performance will for sure suffer from encryption. I remember such situations from various kinds of programs that caused intensive swapping.
Another supplementary measure is a fresh system installation from time to time. However, program crashs can allways lead to an unresponsive system. This is not the fault of loop-aes as such.
A look at ksysguard may help you identifying weak points.
Good luck!
Best regards
Peter
-------- Original-Nachricht --------
> Datum: Sat, 2 Aug 2008 23:15:36 +0300
> Von: Jan Klod <[email protected]>
> An: [email protected]
> Betreff: denial of service problem
> Hello,
>
> it's been some year now since I use loopAES (thanks to Jari!) and it's
> hard to
> complain. Still, there is one problem really bothering me when using my
> laptop: if some application is using encrypted disk IO intensively, it is
> even sometimes possible to reach a complete denial of service for ~10
> min!!!
> For example, today I managed to achieve it just by starting video player
> and
> some terrible disk IO began for some reason (swap perhaps). I hate to
> reboot...
> This might be my main security vulnerability now.
> The question I would like to ask: is there some way to balance system
> resources consumption such a way, I still have acceptable responsibility
> (access shell, lock session etc)?
> It might be, I gave too little information, so I'd appreciate some
> questions
> or ready-usable advices!
>
> Apparently slow disk IO is the problem, but it IS caused by particular
> programs, which could possibly have much lower priority. It is terribly
> high
> now...
>
> Have you experienced too slow reaction on session locking requests? What
> did
> you do?
>
> Regards,
> Jan
>
> -
> Linux-crypto: cryptography in and on the Linux system
> Archive: http://mail.nl.linux.org/linux-crypto/
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Linux-crypto: cryptography in and on the Linux system
Archive: http://mail.nl.linux.org/linux-crypto/