Best way to use zram in Fedora 21?

Reindl Harald h.reindl at thelounge.net
Fri Nov 28 00:32:30 UTC 2014


Am 28.11.2014 um 01:21 schrieb Zbigniew Jędrzejewski-Szmek:
> On Thu, Nov 27, 2014 at 04:42:36PM +0100, Juan Orti wrote:
>> El 2014-11-27 14:48, Reindl Harald escribió:
>>> Am 27.11.2014 um 14:25 schrieb Juan Orti:
>>>> Reindl, I'm of the opinion you should upload your scripts to some git
>>>> repository and package them to be part of the distribution. I can
>>>> co-maintain if you wish
>>>
>>> feel free to package it!
>>>
>>> that's why i attached it as i saw the topic
>>> i am not a active packager on the Fedora infrastrcuture
>>
>> Ok, I've uploaded the scripts to GitHub and submitted a review request:
>>
>> https://github.com/jorti/zram-swap
>> https://bugzilla.redhat.com/show_bug.cgi?id=1168692
> I have a question about the code: why are multiple swap devices needed?
> /sys/block/zram0/max_comp_streams can be set to whatever number is
> wanted. While it might be useful to have additional zram devices
> for different purposes, I don't think more than one zram swap is
> useful. If you only have one device, then reloading the module is
> no longer necessary to change the parameters, since everything
> else seems to be configurable through sysfs

i admit that i am not really sure, that part found by Google around and 
maybe that's a relict of zram before it made it to the upstream kernel

i guess /sys/block/zram0/max_comp_streams should be set to the number of 
CPU's and i ask my self why the default is 1 instead number of cores

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