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From Ian Holsman <i...@cnet.com>
Subject Re: [PATCH/CONTRIB] Shared Mem Hash Table
Date Thu, 05 Jul 2001 22:13:17 GMT
On 05 Jul 2001 22:59:25 +0100, David Reid wrote:
> OK, to comment on this prior to the patch being posted...
> 
> I have SMS running as pools and the implementation I have manages to run the
> server at 80% of the speed of pools.  This is with no changes to the httpd
> code except using --enable-sms on the configure line.  Now, this isn't
> amazing, but does present a starting point.  As I said we haven't started
> optimising or altering.
> 
> We've found a load of problems and I'd like to Thank ben L for his support
> and IRC server while Sander and I discussed/debated/debugged these problems
> online this week.  We've been using Electric Fence to try and find problems
> and it's worked well for us, so maybe we'll add it as an option to
> configure?  Fixes have been committed for some of these and more will likely
> be on the way.  Thoughts?
> 
> However, the fact remains that SMS after only a couple of months is ready
> for use in httpd albeit with a performance penalty.  Platform known to work
> was FreeBSD 4.3 and prefork MPM.  The code used was less tha  ideal and
> faster code is on the way :)  By the time the patch gets to you all on
> saturday I hope it'll be a bit quicker, but as a starting point it throws up
> some issues :)
> 
> I'm in Dubai at the moment and after the frenetic pace of the last couple of
> days I plan to take some time off in the morning round the pool :)
> 
> Does that whet your appetites enough?
> 
> Basically, we need more eyes looking at the code/implementations as soon as
> possible, and this patch may enable that :)
> 
> Sorry Justin, have to be patient! (Not one of your strong points I know)
> Small matter of getting connectivity without it costing me a fortune before
> I commit :)

If you post your patch, I'll run it through quantify which should
highlight where the bottlenecks are.
> 
> david
> 
> > On Thu, Jul 05, 2001 at 08:36:24AM -0700, Ian Holsman wrote:
> > > In the conversations I have seen SMS was always talked about post 2.0
> > > Release.
> > > Is this still the case?
> >
> > Nah.  I think SMS is getting very close to being ready for more people
> > to play with.  In order to solve some problems, we're going to have to
> > use SMS.  David and Sander have made lots of progress with this.  (As
> > I said, I spent yesterday going over the SMS code...)
> >
> > David just got an httpd up that uses no pools, but just SMS.  I believe
> > that the API is identical from pools to SMS, but I'm not sure.  He has
> > all of the details.  I'd bet the pool creation API might be slightly
> > tweaked.
> >
> > Now that we can get an httpd up and serving pages, that means it now
> > needs more people playing with it - i.e. starting to enable this in the
> > mainline code.  It might be a configure time option in the short term
> > so we don't screw everyone, but I think it'll be happening fairly soon.
> > -- justin
> >
> >



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