Re: swapfile on btrfs, temporary solution for wiki

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Thu, Oct 24, 2013 at 11:52:01PM +0300, Timofey Titovets wrote:
> Hello, i suggest temporary solution to use swap file under btrfs.
> I test it, and it work good.
> 
> I invent simple the way, how create and using swap file, just see
> following sh code:
> 
> swapfile=$(losetup -f) #free loop device
> truncate -s 8G /swap   #create 8G sparse swap file

I'd suggest to do full dd on that file and make it NOCOW first. That way
it should minimize attempts to actually allocate the file blocks at the
time they're needed for swap out.

Also a bit of stress testing that this actually works is needed.

> losetup $swapfile /swap #mount file to loop
> mkswap  $swapfile
> swapon  $swapfile


david
--
To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux Filesystem Development]     [Linux NFS]     [Linux NILFS]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux