Re: [PATCH 2/3] page allocator: Do not allow interrupts to use ALLOC_HARDER
From: KOSAKI Motohiro
Date: Sun Nov 01 2009 - 07:37:45 EST
2009/11/1 Pavel Machek <pavel@xxxxxx>:
>> > I believe it would be better to simply remove it.
>> You are against trying to give the realtime tasks a best effort
>> advantage at memory allocation?
> Yes. Those memory reserves were for kernel, GPF_ATOMIC and stuff. Now
> realtime tasks are allowed to eat into them. That feels wrong.
> "realtime" tasks are not automatically "more important".
>> Realtime apps often *have* to allocate memory on the kernel side,
>> because they use network system calls, etc...
> So what? As soon as they do that, they lose any guarantees, anyway.
Then, your proposal makes regression to rt workload. any improve idea
but we don't hope to see any regression.
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