java - HttpURLConnection, skip a file download -

-

i writing java performance test program fires httpurlconnection.openconnection method within each thread , downloads file web server, not save locally. here code:

    httpurlconnection conn = null;     inputstream = null;      try {         url prs = new url(url);         conn = (httpurlconnection)prs.openconnection();          if (conn.getresponsecode() == httpstatus.sc_ok && conn.getcontentlength() > 0 ) {             = conn.getinputstream();             while (is.read() != -1) {              }                    } else {             system.err.println(url+" returned response code : "+conn.getresponsecode()+" , content lengh = "+conn.getcontentlength());         }                } catch (exception e) {         e.printstacktrace();     } {         try {             is.close();         } catch (ioexception e) {             e.printstacktrace();         }         conn.disconnect();     }

the purpose of test see how long take download file (without saving disk) increasing number of threads , measure time takes process each thread on server , client side. not want save file on client side, , read input stream.

the problem each run of program client side performance starts decreasing. not sure, if input stream not getting closed or what.

the idea discard input stream of connection memory each thread.

thanks


Comments

Post a Comment

Popular posts from this blog

javascript - Enclosure Memory Copies -

-
function myclass() { //lots , lots of vars , code here. this.bar = function() { //do numerous enclosed myclass vars } this.foo = function() { alert('hello'); //don't enclosed variables. } } each instance of myclass gets own copy of bar , foo, why prototyped methods use less memory. however, know more memory use of inner methods. it seems obvious me (1) below must true. agree? not distinct myclass instances have own distinct copies of bar, must have own distinct copies of myclass enclosure. (or else how bar method keep myclass variables straight on per instance basis?) now (2) question i'm after. since inner foo method doesn't use in myclass enclosure natural qustion is: javascript smart enough not keep myclass enclosure in memory use of foo? this depend entirely on implementation not language. naive implementations keep far more around others. answer true e.g. v8 (chrome's js engine) may not true spider...
Read more

php - Replacing tags in braces, even nested tags, with regex -

-
example preg_replace('/\{[a-za-z.,\(\)0-9]+\}/', 'replaced', 'lorem ipsum dolor sit {tag1({tag2()})}, consectetur adipiscing elit.'); the result: lorem ipsum dolor sit {tag1(replaced)}, consectetur adipiscing elit. question as can see "tag2" has been replaced, want replace "tag1" know how can this? (in cases might this: {tag1({tag2({tag3()})})}) , on.) btw using preg_replace_callback, easier show preg_replace here site can test code: http://www.spaweditor.com/scripts/regex/index.php you need add curly braces character set. here's pattern used: /\{[a-za-z.,\(\)\{\}0-9]+\}/ and here result: "lorem ipsum dolor sit replaced, consectetur adipiscing elit."
Read more