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From Rémy Maucherat <>
Subject Re: Performance change
Date Fri, 09 Jan 2015 19:13:45 GMT
2015-01-09 18:45 GMT+01:00 Mark Thomas <>:

> One reason (once all the refactoring is complete) might be WebSocket
> since the use of CompletionHandlers in WebSocket and NIO2 may allow for
> some efficiencies that just aren't possible with NIO or APR.

We'll see.

> I'll add looking at this to my TODO list. Unfortunately, past experience
> suggests tuning this may involve more guess work than I'd like since at
> these sorts of rates profilers tend to add so much overhead you can't
> find the bottleneck you are looking for.

I made a mistake, which also made me think that the NIO connector didn't
suffer from the NPE. In the end, there's no significant improvement there.

> The other thing to keep in mind is that these performance figures could
> easily shift a lot further as the code clean-up continues. We should
> defer any decision about removing an implementation until after the
> refactoring is complete. Looking further ahead, the HTTP/2 work may
> impact performance as well.
> On balance I think we should keep all three implementations since there
> are always likely to be loads that are better suited to one
> implementation than the others.
> No problem with that.


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