Profile native code that JAVA application runs
our application is suffers from a severe memory leak. the application runs on Weblogic that uses the severe container and access Oracle DB.
the JAVA heap was monitored for several weeks (using the verbose gc flag) and no leak was discovered. we monitored the native heap (by using the pmap command) and we saw that the heap size increasing. therefor we think the problem is in the native code that runs in this process (the major suspect is the OCI, Oracle client).
after reading the man page of collect and your Article (Profiling Java Appl with Sun Studio 11) I'm confused. I would like to monitor the native heap (with -H option) but in the man page it's written that "Heap profiling is not supported for java programs" so i wheni set the flag -j off i got a warning that this process is java and i might use the -j on.
please advice what are the values of the flags -j an -H in case of i need to monitor the native code of java application.
thanks
yahav
thanks again for the additional article about the Weblogic.
in the startManaged script I added the following prefix:
collect -H on -j off -d /tmp/ java...
when i typed leaks on er_print, i got a list of possible leaks and allocs.
some activities were made on the application so i assume that data should be collected. as the size of the experiment folder slightly increased.
so far we can assume that the data that is relegated to the non java process was collected.
when i typed leaks again within the er_print tool i got the same results.
it means that no native heap activities was made.
is it correct analysis?
regards the leak that was discovered above, how one can identify the function that cause this leak. i can see calls like:
malloc, ReadKnownVMs, CreateExecutionEnvironment. this functions relate to the JVM. i would expect to see some trace (allocs) regards the other native code that runs such as the Oracle OCI client.
I'm suspecting i'm collecting this info.
is there any other flags to set for such collection? or any other commands in the analysis command
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Iterator it1 = tmpSellBook.get(sellPrice).iterator();
if(it1.hasNext()&&it1.next()!=null){
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it1.remove();
if(tmpSellBook.get(sellPrice).isEmpty()){
Iterator it2 = tmpSellBook.entrySet().iterator();
it2.next();
it2.remove();
synchronizeBooks(tmp);*/
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if(getBuyBook().getBuyList()!=null&&!getBuyBook().getBuyList().isEmpty()){
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Iterator it1;Object test1;Iterator it2;Object test2;Iterator it3;Object test3;IOrderEntity tmp;
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* synchronize the list with a list of IOrderEntity
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if(((Map.Entry<String,ReversedTreeMap<Double,ArrayList<IOrderEntity>>>)test1).getValue().isEmpty()){
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IPhone 4 Activation at Home Question!
I understand that if I already have the unlimited data plan, that I don't have to change to the 2GB plan. However, when I activate my iPhone 4 on iTunes at home, will there be an option to keep my current plan or to change to another? I just don't wa
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Video app hangs on loading iTunes Library through Home Sharing
Hello, On my 4th gen iPad I try loading my iTunes Library, which is on a mid-2011 iMac. Home Sharing is configured and working, but when loading my library it hangs during load. See attached screenshot. The library is huge, but that shouldn't be a pr