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Re: Fedora caching suggestion

Mark wrote:
2007/10/16, Matthew Miller <mattdm mattdm org>:
On Mon, Oct 15, 2007 at 04:50:56PM +0200, Mark wrote:
I've followed the discussion about readahead and it got disabled for
Fedora 8 (it wasn't benefiting at all (at least not for me)). Now i
wonder if it would be possible to pre cache the "all time using"
programs? With "all time using" i mean all the programs that are gonna
be started anyway and that are highly likely to be started. for gnome
it would be at least the following:
Readahead can do that. And as you noted, it doesn't help much.

Well, readahead didn't seem to do a good job at it.. i wasn't noticing
any changes with all the echo icons cached in the menu.. it still
looked like the icons still had to be loaded (they didn't appear any
faster at all and all icons where in the readahead list).

I have a hunch what you are describing might be the result of the menu stuff getting pushed out of cache. Certainly the idea to pin/weight things like the menu stuff in cache must have been discussed before, though I couldn't immediately find such a thread via google. I have vague memories of being annoyed by slow menus and googling and discovering that windows provides a method to tag some stuff in cache as more important, and thus less likely to be pushed out of cache.


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