[aur-dev] [PATCH] Cache all front page stats in APC if available

Loui Chang louipc.ist at gmail.com
Sun Jan 4 16:59:56 EST 2009

On Sun, Jan 04, 2009 at 01:43:58PM -0600, Dan McGee wrote:
> Use the APC cache to store all of the counts and the recently updated
> package list in a cache, which cuts down on the number of database queries
> needed. If the data isn't perfectly up to date we will survive.
> This version of the patch will also cache the relevant counts for individual
> logged-in users and is more careful about checking whether the value
> actually exists in the cache by using the status reference to apc_fetch().
> Signed-off-by: Dan McGee <dan at archlinux.org>
> ---
> Sorry I keep tweaking this patch, but I've extensively tested this version
> locally with APC both on and off and it seems to work quite well.
> We even cache some user-specific stuff now for what its worth. Since our cache
> expires relatively quickly, this isn't going to be a used a lot but when it is
> it will save some database load.

No problem. I'd definitely like to understand and test this before
pushing it though, so anything that reduces problems is great.

The stats aren't exactly a critical feature though, so I guess there's
no need to worry too much.

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