Here are the results!! Interesting... I reran everything: - Added JVM options to even out garbage collection. - Ran each test for minutes 5 minutes. - Used Jetty SelectChannelConnector, same as you always used. (other one is faster, but less stable).
https://docs.google.com/a/mulesoft.com/spreadsheets/d/1j2TCeAQmrkWLZyQfetzmtqmUDaGQBiDAr20hC9gEfYE/edit#gid=590558615 Configurations of httpClient are as you have in svn accept for 4.3.3 (not minimal) which is configured as follows: The non-minimal configuration for 4.3.3 is: final RequestConfig requestConfig = RequestConfig.custom() .setStaleConnectionCheckEnabled(false) .setExpectContinueEnabled(false) .build(); this.httpclient = HttpClients.custom() .setConnectionManager(this.mgr) .disableContentCompression() .setDefaultRequestConfig(requestConfig) .build(); Dan On Sat, May 17, 2014 at 8:15 PM, Oleg Kalnichevski <ol...@apache.org> wrote: > On Sat, 2014-05-17 at 00:13 +0100, Daniel Feist wrote: >> > Could you please find out if this difference is consistent regardless of >> > the CPU core number used by the system? >> >> Done, see other email I didn't record all figures, but did run >> multiple times and records differences. >> >> > Honestly, there is really no significant differences between the two I >> > can think of. I cannot completely rule out a possibility of some green >> > men from Mars randomly inserting Thread#sleep() statements but I >> > consider it unlikely. I'll see if I can reproduce the issue locally. >> >> I couldn't imagine a difference but in testing on 32-core with >> BlockingChannelConnector I got: >> >> - 3.1 | 75 K TPS >> - 4.3.3 Minimal / 4.2.6 | 74 K TPS >> - 4.3.3 DefultHttpClient | 72 K TPS >> - 4.3.3 Builder (from your test) | 68 K TPS >> >> The difference is small, but it's an interesting problem, working out >> whats going on. 74 vs 75 is irrelevant, but 68 vs. 75 is bigger. >> >> >> I'm still not seeing a major issue with the contention i mentioned i'd >> >> seen in profiler, be an interesting experiment to test performance >> >> with 500 treads, both with/without proxies though. >> >> >> > >> > I'll give it a shot this weekend. >> >> Not sure you'll see any difference is cpu is constrained. If you do do >> it, I can test on 32-core box for you. >> > > Daniel > > I removed all dynamic proxies and got approximately 10% better > performance with my two CPU core PC. > > Could you please build HttpClient from my private experimental branch at > github and re-run your tests? > > https://github.com/ok2c/httpclient/tree/dyn_proxies > https://github.com/ok2c/httpclient/commit/246095522504ddffe07caf70db4c051fa0d31872 > > Cheers > > Oleg > --------------------------------------------------------------------- To unsubscribe, e-mail: httpclient-users-unsubscr...@hc.apache.org For additional commands, e-mail: httpclient-users-h...@hc.apache.org
