Re: [Patch 0/17] PTI: Explation of Clean Page Table Interface

[Jes Sorensen <jes@sgi.com>]

>>>>> "Paul" == Paul Cameron Davies <pauld@cse.unsw.EDU.AU> writes:

Paul> This patch series provides the architectural independent
Paul> interface.  It has been tested and benchmarked for IA64 using
Paul> lmbench.  It also passes all relevant tests in the Linux Test
Paul> Project (LTP) on IA64.  This patch should 5~also compile and run
Paul> for i386.  To run on other architectures add CONFIG_DEFAULT_PT
Paul> to the architectures config.  Turn off HugeTLB.

Paul> Summary of performance degradation using lmbench on IA64: ~3.5%
Paul> deterioration in fork latency on IA64.  ~1.0% deterioration in
Paul> mmap latency on IA64

Paul,

Let me just get it right as I am not sure I am reading it correctly.
Are you saying that this patch causes a 3.5% fork performance
degradation on ia64 or are you saying it is improving 3.5%?

Thanks,
Jes

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