Re: prelink performance gains

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On Tue, Oct 15, 2013 at 04:54:16PM +0200, Jan Kratochvil wrote:
> On Tue, 15 Oct 2013 16:21:01 +0200, Daniel P. Berrange wrote:
> > To justify removing it, we just need to collect data to show that those
> > performance benefits no longer exist, with current hardware and software
> > combination in Fedora. That is what this email thread is seeking to confirm.
> 
> There is missing some statistics behind it such as deviation computation.
> And 4 tests/numbers seem to be too few to compute any real statistics.
> 
> Some numbers in the initial mail even show as if prelink is slowing down the
> startup.  Technically I do not understand how it can happen and IMHO rather
> the numbers are bogus.  If there is a proven performance degradation it would
> be good to know the reason.

I wouldn't read that as saying that prelink is slowing down startup,
rather that the benefit of prelink is so small as to be indistinguishable
from the background noise.

Daniel
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