Re: [PATCH V2 2/3] drivers/staging: zcache: host services and PAM services

On 02/09/2011 11:39 AM, Dan Magenheimer wrote:

quoted

From: Minchan Kim [mailto:minchan.kim@gmail.com]

quoted

As I read your comment, I can't find the benefit of zram compared to
frontswap.

Well, I am biased, but I agree that frontswap is a better technical
solution than zram. ;-)  But "dynamic-ity" is very important to
me and may be less important to others.

I agree that frontswap is better than zram when considering swap as the 
use case - no bio overhead, dynamic resizing. However, zram being a 
*generic* block-device has some unique cases too like hosting files on 
/tmp, various caches under /var or any place where a compressed 
in-memory block device can help.

So, frontswap and zram have overlapping use case of swap but are not the 
same.

Thanks,
Nitin

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