From: H. Peter Anvin <hpa@zytor.com>
Date: Sat, 09 Dec 2006 00:47:48 GMT
Subject: Re: kernel.org mirroring (Re: [GIT PULL] MMC update)
Message-ID: <457A07B4.2060303@zytor.com>
In-Reply-To: <Pine.LNX.4.64.0612081640400.3516@woody.osdl.org>

Linus Torvalds wrote:
> 
> It's kind of silly to have people wait for 20 seconds just because a cache 
> expired five seconds ago. Much nicer to say "ok, we allow a certain 
> grace-period during which we'll do the real lookup, but to make things 
> _look_ really responsive, we still use the old cached value".
> 

Yup, DNS does this, and it's a Very Good Thing.