On Thu, Sep 12, 2013 at 01:32:07PM +0200, Marc-André Lureau wrote: > On Wed, Sep 11, 2013 at 11:09 AM, Christophe Fergeau > <[email protected]> wrote: > > On Tue, Sep 10, 2013 at 04:43:39PM +0200, Marc-André Lureau wrote: > >> From: Marc-André Lureau <[email protected]> > >> > >> Thos function shows up in some profiling results, it seems we can > >> trivially replace it with a precomputed array of 256bytes. > > > > I forgot to ask, is the function less obvious in the profiling results > > after your changes? > > > > Christophe > > The test is a recoridng of XP cmd doing a recursive dir, for about 30% > of the total recording time: > (http://elmarco.fedorapeople.org/xp.xz) > > before: > 5.66% 691 lt-spicy-stats > libspice-client-glib-2.0.so.8.4.0 [.] revers_bits > after: > 0.53% 64 lt-spicy-stats > libspice-client-glib-2.0.so.8.4.0 [.] revers_bits > > (fyi, 5% is about the same amount of cpu used for glz or quic decoding > in this recording)
Ah, thanks, I did not expect hard numbers given your cover letter, let's just add this data to the commit log then. Christophe
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