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SubjectRe: [OT] No Swap. Re: [BUG 2.6.90-test5] kernel shits itself with 48mb ram under moderate load
Roger Luethi wrote:
> On Sat, 27 Sep 2003 20:13:48 +0200, Ihar 'Philips' Filipau wrote:
>
>>Roger Luethi wrote:
>>
>>>On Sun, 28 Sep 2003 01:26:34 +1000, Jason Lewis wrote:
>>>
>>>>0 12 0 3424 816 6008 0 0 19712 0 5519 3184 0 12
>>>>0 87
>>>
>>> ^^^^
>>>Looks like you don't have swap enabled. Are successful 2.4 runs with or
>>>without swap?
>>
>> I'm running RH stock 2.4.20-20.9 without swap for around month.
>> OOo, Mozilla, eDonkey & heaps of xterms. Even evaluation of VMware
>>with Win2K inside was Ok.
>> On average: much better experience.
>
> Better than with swap? Or better than 2.6?
>

Better than with swap. This is production workstation - I cannot test
something on it :-(

>
>>$ free
>> total used free shared buffers cached
>>Mem: 513872 507128 6744 0 32784 341404
>
> The initial post was about a 48 MB machine. 10% of what you have. The
> poster's system is paging like crazy -- since all dirty pages without a
> mapping are pinned in memory, it must shuffle around the rest.
>

Sorry, I even marked $subject as [OT].
I'm answering the question '2.4 without swap' - Yes. It is. Works.
No problems.

<rant>'Paging like crazy' became for me a synonym of Linux. It
doesn't matter how much memory you have. Less == worse. Developers
stopped testing VMM regression on low-memory computers long time ago.
<sarcasm>We have now fashion for clusters and numas. And a lot of swap
on very fast raids. <sarcasm size=+100%>After all it is cheap. Just
couple of thousands greenbacks. </sarcasm> </sarcasm> It was really
funny when developers on LKML were sugesting to buy another hdd for
swap. Very funny.</rant>

Unfortunately I'm not a specialist in VMM...
As I see there is not that much edge case testing going around.

--
Ihar 'Philips' Filipau / with best regards from Saarbruecken.
--
"... and for $64000 question, could you get yourself vaguely
familiar with the notion of on-topic posting?"
-- Al Viro @ LKML

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