Topic "hsperfdata_<USER> dirctories" was updated by briansully with the following message: 
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From googling the net and searching these forums I understand the JVM needs to create the hsperfdata files. I can live with that I guess. My problem is that the JVM always creates them in /tmp on my SuSE Enterprise 9 server. I need to be able to specify the location of these files. I tried setting environment variables, TMP and TEMP. That did not work. I tried a -Djava.io.tmpdir=/mydir and that did not work.

I went to the JVM source and found in perfMemory_linux.cpp:

static char* get_user_tmp_dir(const char* user) {

  const char* tmpdir = os::get_temp_directory();
  const char* perfdir = PERFDATA_NAME;
  size_t nbytes = strlen(tmpdir) + strlen(perfdir) + strlen(user) + 2;
  char* dirname = NEW_C_HEAP_ARRAY(char, nbytes);

  // construct the path name to user specific tmp directory
  snprintf(dirname, nbytes, "%s%s_%s", tmpdir, perfdir, user);

  return dirname;
}

I then tracked down this get_temp_directory function and found this in os_linux.cpp:

const char* os::get_temp_directory() { return "/tmp/"; }

So this means the JVM is hard coded to access /tmp. There is no reason the JVM should be hardcoded to such a location, it should be customizable through some sort of parameter. Anyone have ideas?
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