On Tue, Nov 25, 2014 at 09:03:20PM +0100, Juan Orti wrote:
> Hi, I know how to manually configure the zram, but what's the best way
> to do it?
>
> I've seen the unit zram.service of anaconda-core, and it gets activated
> when booting with inst.zram=on, but it looks like very anaconda-centric.
>
> Should something like [1] be packaged and included in the distro? or
> maybe we should spin off the anaconda zram.service and do it more
> generic.
>
> I think this is a very interesting feature for memory constrained VMs
> and other devices.
>
> [1] https://github.com/mystilleef/FedoraZram
BTW, util-linux v2.26 (f22) is going to contain new command zramctl(8)
Karel
$ zramctl --help
Usage:
lt-zramctl [options] <device>
lt-zramctl -r <device> [...]
lt-zramctl [options] -f | <device> -s <size>
Options:
-a, --algorithm lzo|lz4 compression algorithm to use
-b, --bytes print sizes in bytes rather than in human readable
format
-f, --find find a free device
-n, --noheadings don't print headings
-o, --output <list> columns to use for status output
--raw use raw status output format
-r, --reset reset all specified devices
-s, --size <size> device size
-t, --streams <number> number of compression streams
-h, --help display this help and exit
-V, --version output version information and exit
Available columns (for --output):
NAME zram device name
DISKSIZE limit on the uncompressed amount of data
DATA uncompressed size of stored data
COMPR compressed size of stored data
ALGORITHM the selected compression algorithm
STREAMS number of concurrent compress operations
ZERO-PAGES empty pages with no allocated memory
TOTAL all memory including allocator fragmentation and metadata overhead
MOUNTPOINT where the device is mounted
For more details see zramctl(8).
--
Karel Zak <k...@redhat.com>
http://karelzak.blogspot.com
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