If I destroy each stylesheet after one compile/transform run, the memory will not grow. I think this behavior can be explained by some preallocated (and reused) memory within Xalan. But how I get rid of this memory? The destruction of XalanTransformer, even a terminate of the whole library does not seem to work.
HolgeR
Holger Fl�rke schrieb:
Hi there,
I have tried to compile multiple Stylesheets, store the pointers to the compiled stylesheets within a stl list, do some transformations, and destroy the stylesheets one after another. After each stylesheet compilation and after each stylesheet destruction, I glimpsed into /proc/self/statm, the memory usage of the current process on linux machines. I was wondering why the memory usage stays at a high level even after the destruction of the compiled stylesheets and the termination of the library.
Is there anywhere a memory leak with the usage of multiple compiled stylesheets? Or am I wrong with my interpretation of the memory usage of the process? Does anybody see the same results?
I have attached the source of the test, a modified version of the compiled stylesheet example. It does only run on linux machines. You have to put the foo*-files from the compiled stylesheet sample within the same directory. I used this on RedHat WS3.0 with "gcc version 3.2.3 20030502 (Red Hat Linux 3.2.3-24)", Xalan-C 1.7 (slightly modifed) and Xerces-C 2.4 (slightly modifed). My results are:
Start
821 821 763 4 813 4 58
compiled Stylesheet #0
1140 1140 1052 4 1102 34 88
compiled Stylesheet #1
1150 1150 1052 4 1102 44 98
compiled Stylesheet #2
1157 1157 1052 4 1102 51 105
compiled Stylesheet #3
1166 1166 1052 4 1102 60 114
compiled Stylesheet #4
1173 1173 1052 4 1102 67 121
compiled Stylesheet #5
1180 1180 1052 4 1102 74 128
compiled Stylesheet #6
1186 1186 1052 4 1102 80 134
compiled Stylesheet #7
1192 1192 1052 4 1102 86 140
compiled Stylesheet #8
1199 1199 1052 4 1102 93 147
compiled Stylesheet #9
1206 1206 1052 4 1102 100 154
...
destroying Stylesheet
1262 1262 1100 4 1150 108 162
destroying Stylesheet
1262 1262 1100 4 1150 108 162
destroying Stylesheet
1262 1262 1100 4 1150 108 162
destroying Stylesheet
1262 1262 1100 4 1150 108 162
destroying Stylesheet
1262 1262 1100 4 1150 108 162
destroying Stylesheet
1262 1262 1100 4 1150 108 162
destroying Stylesheet
1262 1262 1100 4 1150 108 162
destroying Stylesheet
1262 1262 1100 4 1150 108 162
destroying Stylesheet
1262 1262 1100 4 1150 108 162
destroying Stylesheet
1262 1262 1100 4 1150 108 162
Xalan terminated
1264 1264 1102 4 1152 108 162
Xerces terminated
1266 1266 1104 4 1154 108 162
End
Regards,
HolgeR
-- holger floerke d o c t r o n i c email [EMAIL PROTECTED] information publishing + retrieval phone +49 2222 9292 90 http://www.doctronic.de
