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From: The Natural Philosopher <tnp@invalid.invalid>
Newsgroups: comp.os.linux.misc
Subject: Re: Linux doesn't seem to manage memory very well
Date: Fri, 3 May 2024 13:37:41 +0100
Organization: A little, after lunch
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On 03/05/2024 08:45, Computer Nerd Kev wrote:
> The Natural Philosopher <tnp@invalid.invalid> wrote:
>> On 03/05/2024 00:23, Computer Nerd Kev wrote:
>>> I run current Firefox on a PC with 2GB RAM
>>> and I don't have it getting killed by the kernel, nor do I have
>>> problems with kernel crashes/reboots. I've also tried running
>>> recent Firefox on a PC with 512MB RAM and noticed that it performs
>>> much worse than with 2GB RAM, slowing down to a crawl while loading
>>> some websites, suggesting that it really does need more RAM in that
>>> case.
>>>
>>> I don't use web browsers to play video. If you're streaming super
>>> high resolution video through your browser with the latest and
>>> greatest compression algorithms, then it probably has the right
>>> to chew up a lot of RAM.
>>>
>> I use browsers to play videos. RAM usage is not massive. CPU usage is.
> 
> Perhaps RAM usage isn't that great on the scale of systems with tens
> of GB of RAM. Compared to 2GB I think it may be significant because
> when I tried to transcode a 1920x1080 video in AV1 format to
> lower-res MPEG4 on a VPS with 1GB RAM + 1GB swap space, ffmpeg
> (v. 4) surprised me by running out of RAM. Of course it could be a
> bug in that decoder, but not having tackled much AV1 video before I
> concluded that high resolutions plus modern video codecs requires
> lots of RAM.
> 
Transcoding is not playing

>> What chews memory are *commercial* websites loaded with (deliberately)
>> buggy javaScript that cause javaScript engines to go into meltdown. How
>> that is handled is browser dependent.
>>
>> Ublock Origin helps massively, but is not a complete answer.
>> What is a massive help at leats in Mint Mate is the System Monitor
>> widget that I keep in the task bar permanently displaying CPU, RAM and
>> Network usage as teeny graphs.
>> It is very easy to see when memory is all grabbed by a process rather
>> than simply cache
>> And monitor how much gets released when you close a website page.
> 
> There's also about:performance in Firefox. I do use NoScript with
> all my browsing in Firefox.

I haven't yet needed to

> 

-- 
Renewable energy: Expensive solutions that don't work to a problem that 
doesn't exist instituted by self legalising protection rackets that 
don't protect,  masquerading as public servants who don't serve the public.