Re: Disable btrfs memory swap file
On 6/27/23 00:27, Jeffrey Walton wrote:
On Tue, Jun 27, 2023 at 2:40 AM Samuel Sieb <samuel(a)sieb.net>
wrote:
>
> On 6/26/23 23:20, Jeffrey Walton wrote:
>> On Tue, Jun 27, 2023 at 2:14 AM Samuel Sieb <samuel(a)sieb.net> wrote:
>>>
>>> On 6/26/23 20:48, Jeffrey Walton wrote:
>>>>
>>>> I've got a Fedora 38 install (upgrade from F37). The install
happened
>>>> with Anaconda. Anaconda created the compressed memory swap file. I
>>>> resized the disk and added a proper swap partition. Now I need to
>>>> modify /etc/fstab and disable the compressed memory swap file. In the
>>>> screen text below, /dev/nvme0n1p4 is the new partition.
>>>>
>>>> My Google-fu really sucks today. I cannot find a discussion of it.
>>>>
>>>> How do I modify fstab to remove the compressed memory swap file?
>>>
>>> Why would you want to?
>>
>> The compiler is crashing in cc1plus. I'm out-of-memory on a machine
>> with 16GB of RAM. Effectively I'm DoS'd with the btrfs default
>> strategy. Time to do something different... like get rid of that
>> compressed swap file in RAM, use a real swap file, and use memory for
>> programs.
>
> It has nothing to do with btrfs. That's just the default and it works
> really well. You get lots of "extra" memory without the lag of going to
> the disk. You could add the disk swap as well. You don't have to
> remove the zram for that.
I guess that's in the eye of the beholder. I don't like being DoS'd.
Fedora with btrfs is worse than Solaris. Solaris will work with 8 GB
of RAM (but usually not less). Fedora can't operate with 16 GB. Ugh...
I'll install a different OS to sidestep the problem.
I don't know why you're linking this to btrfs. That has nothing at all
to do with it. And Fedora works just fine with 16GB. I have it running
on ancient computers with only 3GB.