Re: Hashed locking for the namecache

[yamt%mwd.biglobe.ne.jp@localhost (YAMAMOTO Takashi)]

> Hi,
> 
> http://www.netbsd.org/~ad/cache.diff
> 
> This patch uses a hash of locks to cover forward lookup in the namecache.
> On an 8-core box it cuts the time for 'build.sh -j16 release' by about 5%.
> We could probably do something a lot more efficient with garbage collection.
> But, this patch is simple and I think it could be a stepping stone towards
> a more better scheme.
> 
> Comments?
> 
> Thanks,
> Andrew

cache_lookup() sometimes modifies caches.  eg. "goto remove" cases.

YAMAMOTO Takashi