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    SubjectRe: lmbench lat_mmap slowdown with CONFIG_PARAVIRT
    On Tue, Jan 20, 2009 at 03:17:35PM +0100, Ingo Molnar wrote:
    >
    > * Nick Piggin <npiggin@suse.de> wrote:
    > >
    > > BTW. the lmbench test I run directly (it's called lat_mmap.c, and gets
    > > compiled into a standalone lat_mmap exec by the standard lmbench build).
    >
    > doesnt that include an indeterminate number of gettimeofday() based
    > calibration calls? That would make it harder to measure its total costs in
    > a comparative way.

    Hmm... yes probably for really detailed profile comparisons or
    other external measurements it would need modification.


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