Re: loop device memory usage

[Newsmail <newsmail@xxxxxxxxxxxxxxxx>]

how is this preallocation calculated, is there any way to tweak it? :> or I 
presume its tweaked already. does it matter how big the filesystem on top 
the loop device is, how many writes do we have simultaneously, how fast do 
we have them(or do we want to have them :)), what is ideal, etcetc.
regards,
greg

> loop-AES's device backed loop preallocates a predetermined amount of RAM
> pages at losetup/mount time. It does not allocate any more thereafter at
> all, but recycles preallocated pages. That means that it is encrypted swap
> and encrypted filesystem safe no matter what amount of data you throw at it.
>
> Amount of preallocation just affects performance: too little preallocation
> causes slow performance, and too large preallocation just wastes RAM without
> significant performance improvement.
>
> Regards,
> Jari Ruusu <jari.ruusu@pp.inet.fi>
>
> -
> Linux-crypto:  cryptography in and on the Linux system
> Archive:       http://mail.nl.linux.org/linux-crypto/

-
Linux-crypto:  cryptography in and on the Linux system
Archive:       http://mail.nl.linux.org/linux-crypto/