From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ben Greear Subject: Re: RFC: per-socket statistics on received/dropped packets Date: Tue, 11 Jun 2002 23:49:23 -0700 Sender: owner-netdev@oss.sgi.com Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Cc: Mark Mielke , linux-kernel@vger.kernel.org, netdev@oss.sgi.com Return-path: To: Pekka Savola List-Id: netdev.vger.kernel.org Pekka Savola wrote: > On Tue, 11 Jun 2002, Ben Greear wrote: > >>If they are useful to some people, and have zero performance affect on others >>(due to being a configurable kernel feature), then what is your >>complaint? >> > > 3) Added features and complexity makes it more difficult to maintain the > kernel (you could say this is a variant of 1) Adding counters to structures generally is not going to increase complexity (especially when you comment the code). It would increase the code size slightly. The code to bump the counters should also be extremely simple (surely we don't drop packets in more than just a few places). So, in this case, the increase in complexity seems pretty minimal. > 4) Patches that have only a little debugging/etc. value are probably > useful, but mainly for a specific set of people, and this would seem to be > best handled by external patches. External-only patches almost always rot, and are extremely hard to really share across organizations. Still, point taken. Thanks, Ben -- Ben Greear President of Candela Technologies Inc http://www.candelatech.com ScryMUD: http://scry.wanfear.com http://scry.wanfear.com/~greear