On Thu, Apr 02, 2009 at 01:54:56AM +0200, Gruntz,Dominik wrote:
> Hi,
> I wrote a method which requests a resource several times from on a servlet
> server (on localhost).
> It seems to me that the version using HttpClient is abouot a factor of 20-30
> slower than the
> version based on Sun's HttpURLConnection. I cannot believe these figures and
> ask you, where
> I misused the HttpClient class. If the result is correct, what is the reasen
> that HttpClient
> is slower?
>
> The HttpClient method looks as follows:
>
> static void doJakartaCommons(String path) throws Exception {
> HttpClient client = new HttpClient();
> for (int i = 0; i < 1000; i++) {
> HttpMethod method = new GetMethod(path);
> client.executeMethod(method);
> int code = method.getStatusCode();
> if(code != 200)
> throw new IllegalStateException();
> method.releaseConnection();
> }
> }
>
>
> The version bsaed on HttpURLConnection looks as follows:
>
> static void doHttpConnection(String path) throws Exception {
> for (int i = 0; i < 1000; i++) {
> URL url = new URL(path);
> HttpURLConnection c = (HttpURLConnection)
> url.openConnection();
> c.connect();
> int code = c.getResponseCode();
> if(code != 200)
> throw new IllegalStateException();
> }
> }
>
>
> Thanks for your help.
> Dominik
>
>
Your performance benchmark is completely flawed. You are comparing
apples to oranges. Here's what HttpURLConnection test does: open a
connection, execute request, read response head, drop connection. Here's
what your HttpClient test case does: open a connection, execute request,
read response head, read response body (!!!!), re-use connection.
Obviously opening a new local connection is significantly faster than
reading a larger response body
Performance benchmarking is a tricky business.
Oleg
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: [email protected]
> For additional commands, e-mail: [email protected]
>
>
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
