Slow fork() on Red Hat Enterprise Linux 5, 64 bit XEN paravirtualized guest

Solution Verified - Updated -

Issue

  • Slow fork() on Red Hat Enterprise Linux 5, 64 bit XEN paravirtualized guest
  • Slow fork() on dom0 and domU when running with XEN kernel and faster fork() when running normal kernel.
  • Slow fork() on ParaVirtualized XEN guests and faster fork() on HVM guests.

Environment

  • Red Hat Enterprise Linux 5 x86_64

  • XEN

  • kernel-xen

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