Re: [dev] stderr: unnecessary?

From: Anders Andersson <>
Date: Fri, 11 Jun 2010 22:15:03 +0200

On Fri, Jun 11, 2010 at 7:30 PM, pancake <> wrote:
> Not really. Actually NOBODY reads files bigger than 2GB in a SINGLE syscall.
> Such operation would lock the process for a long and eat so many resorces
> from the app (it should malloc 2GB.. Or use mmap which is a kernel wrap for
> tis in a cached way over.. But certainly mmaping more than 2GB can be
> problematic..mostly because of architecture (x86) limits in mmu. So u will
> probably end up overwritting over mmaped stuff on the same virtual memory
> space of the app.
> this is why i said it was a silly example.
> Think before posting or blaming ;)

Think before posting or blaming. 2GB might be silly now, much as 2MB
was silly 20 years ago. I can't see why it would be extraordinarily
silly to read in/map 2GB from a file 10 years from now. It takes 10
seconds at most *today*. And to limit your application because people
still use a broken processor architecture sounds a bit windows-y I
Received on Fri Jun 11 2010 - 20:15:03 UTC

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