Thanks, I assumed that this memory would be automatically free'd. I will try again, stress testing then waiting for the memory to be free'd, since I did not give the server a break in the action (Rather just watched the process memory move from 20 MB to 500MB without seeing any memory relieved). Over a period of 30 minutes @ 25 requests/second.
However I am very sure that a well designed server should not reach a 500MB process footprint. The functionality of Linux v1.1.0 single threaded example server (axis2_http_server), seems to have changed so as to not de-allocate all the memory right away. I suspect that with all the indentation changes and code replacements from the v1.0.0 release to 1.1.0 release perhaps a _free() or _FREE() function was accidentally removed in the process. I have already spotted one questionable place, when I scanned the svn diff from v1.0.0 to v1.1.0. I will test my theory tomorrow, attempting to read-add various free() functions where I cannot justify removal. ----- Original Message ----- From: Samisa Abeysinghe <[EMAIL PROTECTED]> Date: Thursday, October 11, 2007 7:46 pm Subject: Re: Memory Issues in Sample Server Code To: Apache AXIS C User List <[email protected]> > David Klassen wrote: > > Right this is what I have already done, using gnuthilla and > without > > gnuthilla. Unfortunately using mod_axis2.so with v1.1.0 or > v1.0.0 > > causes the size of httpd.exe to grow continually. I > decided to post > > bug *AXIS2C-717 > <https://issues.apache.org/jira/browse/AXIS2C-717>* > > detailing where the memory of httpd.exe kept growing and > eventually > > encountered an unhandled exception. > Please note that, even though there seems to be a growith, if > you keep > on sending requests, you would notice that, at some point, it > drops > back. This is dues to the pooling behaviors of apache. I cannot > recall > an exact number, after which it would drop, possibly you have to > send > few hundred requests. > > Samisa... > > > > ----- Original Message ----- > > From: Dumindu Pallewela <[EMAIL PROTECTED]> > > Date: Thursday, October 11, 2007 2:27 pm > > Subject: Re: Memory Issues in Sample Server Code > > To: Apache AXIS C User List <[email protected]> > > > > > Hi David, > > > > > > As we use apr pools for memory management in mod_axis2, the loss > > > that you see (when deployed in apache2) is most _likely_ not > a bug. > > > Rather, it should be because that is how apr pools work. > They do not > > > necessarily free up memory immediately after a pool is destroyed. > > > > > > The best way to test the apache module (If this isn't what you > > > already did!), is to run the client repeatedly and check if the > > > memory grows significantly. > > > > > > HTH, > > > -Dumindu. > > > > > > David Klassen wrote: > > > > Actually I was using both apache and the > axis2_http_server, of > > > which the axis2_http_server had less memory absorption. > > > Incidentally I also found a difference in the amount of memory > > > loss due to version of the axis2c client program used. All tests > > > were performed using a v1.1.0 based server on Windows. The > > > client programs were invoked on Linux using both v1.0.0 and > > > v1.1.0 of axis2c: > > > > > > > > > > > > Server | v1.1.0 client | v1.0.0 client > > > > ------------------------------------------------------- > > > > > > > > httpd.exe | 24K loss | 16K loss > > > > axis2_http_server.exe | 8K > > > loss | > 4K loss > > > > > > > > I then decide to try using a Windows client against a Linux > > > server. The windows client only used version 1.1.0. I only > > > used the Linux axis2_http_server for the server but alternated > > > between v1.1.0 and v1.0.0. Here are the results: > > > > > > > > > > > > > > > > > > > > Server | v1.1.0 Window Client > > > > > > > > ------------------------------------------------------- > > > > > > > > axis2_http_server v1.1.0 > > > | 4K loss > > > > > > > > axis2_http_server v1.0.0 > > > | no loss > > > > > > > > I have already seen both version of the Windows server leak, > > > however in these tests it shows that v1.0.0 of the Linux > > > server did not leak but v1.1.0 does leak. Unfortunately I need > > > to use the Windows server version for my implementation, so this > > > does not help in my case. Do you know does axis C++ v1.6 have > > > memory issues like this on Windows server side? I really > need a > > > version that performs well on Windows. > > > > > > > > > > > > ----- Original Message ----- > > > > From: Samisa Abeysinghe <[EMAIL PROTECTED]> > > > > Date: Wednesday, October 10, 2007 8:23 pm > > > > Subject: Re: Memory Issues in Sample Server Code > > > > To: Apache AXIS C User List <[email protected]> > > > > > > > >> There is are memory issues with simple axis server. We > got to > > > >> fix that. > > > >> In the mean time, could you please try the same tests with > > > httpd > > > >> module?I hope that would yield better results. > > > >> > > > >> Samisa... > > > >> > > > >> David Klassen wrote: > > > >>> I have been stress testing axis2c for performance (using the > > > >> echo > > > >>> sample service), to determine if this platform is a good > > > >> solution for > > > >>> my purposes. So far I have been attempting to debug each > > > >> echo.exe > > > >>> invocation. Each time I execute the remote client > > > invocation, > > > >> the > > > >>> server process increments its used memory by 4 KB. When the > > > >> service > > > >>> thread completes this memory is not deallocated. During the > > > >> debug > > > >>> session I notice that: > > > >>> > > > >>> echo_invoke > > > >>> > > > >>> is the only DLL function called. The other echo_skeleton.c > > > >> memory > > > >>> management functions are not called: > > > >>> > > > >>> echo_free > > > >>> axis2_remove_instance > > > >>> > > > >>> Can anyone suggest how I might configure axis2c to free > > > memory > > > >> for > > > >>> each echo service invocation (ie. per request)? > > > >> > > > >> -- > > > >> Samisa Abeysinghe : WSO2 WSF/PHP > > > >> "http://wso2.org/projects/wsf/php?WSO2 Web Services > > > Framework%2FPHP - Open source PHP extention for providing and > > > consuming Web services in PHP" > > > >> > > > >> > > > >> ---------------------------------------------------------- > ---- > > > --- > > > >> ---- > > > >> To unsubscribe, e-mail: [EMAIL PROTECTED] > > > >> For additional commands, e-mail: [EMAIL PROTECTED] > > > >> > > > >> > > > > > > > > > > > > > -- > > > Dumindu Pallewela > > > http://blog.dumindu.com > > > GPG ID: 0x9E131672 > > > > > > WSO2 | http://wso2.com | "Oxygenating the Web Service Platform" > > > > > > > > > -- > Samisa Abeysinghe : WSO2 WSF/PHP > "http://wso2.org/projects/wsf/php?WSO2 Web Services Framework%2FPHP - Open source PHP extention for providing and consuming Web services in PHP"; > > > ----------------------------------------------------------------- > ---- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > >
