Re: [RFC][PATCH 0/6] Another go at speculative page faults

[Peter Zijlstra]

On Tue, Oct 21, 2014 at 08:09:48PM +0300, Kirill A. Shutemov wrote:
> It would be interesting to see if the patchset affects non-condended case.
> Like a one-threaded workload.

It does, and not in a good way, I'll have to look at that... :/

 Performance counter stats for './multi-fault 1' (5 runs):

        73,860,251      page-faults                                                   ( +-  0.28% )
            40,914      cache-misses                                                  ( +- 41.26% )

      60.001484913 seconds time elapsed                                          ( +-  0.00% )


 Performance counter stats for './multi-fault 1' (5 runs):

        70,700,838      page-faults                                                   ( +-  0.03% )
            31,466      cache-misses                                                  ( +-  8.62% )

      60.001753906 seconds time elapsed                                          ( +-  0.00% )
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