[pacman-dev] [PATCH] makepkg: parallelize integrity checks

[Dan McGee]

On Fri, Apr 22, 2011 at 11:16 AM, Dan McGee <dan at archlinux.org> wrote:
> This enables parallel integrity checks in makepkg within a given family
> of integrity sums. Subshell jobs for each source file are kicked off and
> run in parallel, and then we wait for each of them in turn to complete
> and print the same information as before.
>
> Note that programming sense says this loop should be done differently
> for filesystem access reasons; doing all checks for a given file would
> make more sense rather than running through the filelist multiple times.
> However, that would be a very different patch than what this is trying
> to accomplish.

Two other things worth mentioning:
1. We don't limit the number of jobs here in any way, so in theory you
could have a lot...
2. Applying this to source file extraction would be the next logical
step, as that is a much slower part than this, and we might as well
use more cores since all extraction programs we use are
single-threaded.

-Dan