[plug] XMMS && dm-crypt

[John Knight]

Just having a guess about this one, but maybe the CPU's being hogged by the 
decryption process and XMMS is simply suffering because of it. Have you 
tried anything else as a tester, something performance hungry, like a 3D 
game with big levels?

"...it was brilliant, there was three up against a thousand, and boy, did we 
give those three heaps!"

>I have just started experimenting with dm-crypt (device mapper encryption) 
>and am encrypting most of my partitions (for the sake of it as an 
>experiment.) I have done most of my partitions and they are fine.
>But...
>
>I moved all my music onto a 25Gb encrypted partition and now XMMS behaves 
>sluggishly. While the music still plays fine anything else just chugs. The 
>screen update (of XMMS's time scale) and playlist are very unresponsive.
>CPU usage and memory usage are low so I think it is caused by IO waits.
>
>Would this be dm-crypt not functioning well for anything other than 
>sequential read/writes (i.e. it doesn't like playing the music and getting 
>ID3 tags for other songs at the same time ....)?
>
>Is there some way I can speed things up or should I leave it on an 
>unencrypted partition? Read/write speeds appear to be almost the same its 
>just when playing the music. I haven't had a chance to try with another 
>media player yet.
>
>Tim
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