[lkml]   [2006]   [May]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH 00/33] Adaptive read-ahead V12
Andrew Morton <> writes:
> These are nice-looking numbers, but one wonders. If optimising readahead
> makes this much difference to postgresql performance then postgresql should
> be doing the readahead itself, rather than relying upon the kernel's
> ability to guess what the application will be doing in the future. Because
> surely the database can do a better job of that than the kernel.

With that argument we should remove all readahead from the kernel?
Because it's already trying to guess what the application will do.

I suspect it's better to have good readahead code in the kernel
than in a zillion application.

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2006-05-26 16:02    [from the cache]
©2003-2014 Jasper Spaans. hosted at Digital Ocean