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From "Oleksandr Alesinskyy (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HTTPCLIENT-925) HttpClient 4.0.1 is approx. 3 time slower then older 3.1 when works against www.google.com
Date Mon, 18 Oct 2010 12:04:24 GMT

    [ https://issues.apache.org/jira/browse/HTTPCLIENT-925?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12922051#action_12922051
] 

Oleksandr Alesinskyy commented on HTTPCLIENT-925:
-------------------------------------------------

Not listening to what?
You said that it is due to USER-AGENT. 
Then this header was set to the same value as in the version 3.1  - which reduces response
sizes to the level of 3.1 but processing was still much slower.

While not the bug of HttpClient client as such this effect definitely deserves to be mentioned
in the readme or the migration (3.x->4.x) guide.

> HttpClient 4.0.1 is approx. 3 time slower then older 3.1 when works against www.google.com
> ------------------------------------------------------------------------------------------
>
>                 Key: HTTPCLIENT-925
>                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-925
>             Project: HttpComponents HttpClient
>          Issue Type: Improvement
>            Reporter: Oleksandr Alesinskyy
>            Priority: Minor
>         Attachments: google.zip
>
>
> I have tried  benchmarks from httpclient-benchmark - results are some what funny - while
for most tried sites 4.0.1 is marginally faster then 3.1, for a couple of sites it is significantly
slower, the most noticeable for www.google.com, test were repeated multiple times, here are
sample output from 4.0.1 and 3..1  
> *4.0.1*
> Server Software:	gws
> Document URI:		http://www.google.com
> Document Length:	8459 bytes
> Time taken for tests:	3.952 seconds
> Complete requests:	10
> Failed requests:	0
> Content transferred:	84524 bytes
> Requests per second:	2.5303645 [#/sec] (mean)
> Time per request:	395.2 [ms] (mean)
> *3.1*
> Server Software:	gws
> Document URI:		http://www.google.com
> Document Length:	6847 bytes
> Time taken for tests:	1.354 seconds
> Complete requests:	10
> Failed requests:	0
> Content transferred:	68488 bytes
> Requests per second:	7.3855247 [#/sec] (mean)
> Time per request:	135.4 [ms] (mean)
> It is interesting, why.

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