- My multithreaded application consumes a lot more memory on RHEL 6 compared to RHEL 5, or on RHEL 5 compared to RHEL 4. This can be seen from the VSZ column in top output for the process or through "Out of Memory" errors encountered in the process itself.
- Red Hat Enterprise Linux (RHEL)
- upgrade from RHEL 4 to 5
- upgrade from RHEL 5 to 6
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