lzo2 shows insane speed gap
Bruce Cran
bruce at cran.org.uk
Tue Dec 30 02:05:31 UTC 2008
On Tue, 30 Dec 2008 01:47:47 +0100
Christian Weisgerber <naddy at mips.inka.de> wrote:
> Nate Eldredge:
>
> > It might be good first to rule out compiler / library differences.
>
> Sure. Let's cut this short:
>
> "Slow"
> Athlon 64 X2 5200+ 2.6 GHz, FreeBSD 8.0-CURRENT amd64 ~60
> min Phenom 9350e 2.0 GHz, OpenBSD 4.4-CURRENT amd64
> ~80 min UltraSPARC-IIe 500 MHz (Blade 100), OpenBSD 4.4-CURRENT
> sparc64 10 h++
>
> "Fast"
> Pentium 4 3.0 GHz, FreeBSD 6.4-RELEASE i386 36 s
> Xeon E5405 2.0 GHz (PowerEdge 1950), OpenBSD 4.4-CURRENT amd64 47 s
> Alpha 21164A 500 MHz (AlphaPC164), OpenBSD 4.4-CURRENT alpha 9
> min
>
> Let me draw your attention to the fact that the two amd64 systems
> that run different operating systems are both slow, whereas the two
> amd64 systems that run the same operating system (compiler, libraries)
> diverge in speed.
>
>
> Oh, and everybody is invited to run
>
> $ cd /usr/ports/archivers/lzo2 && make
I'm running 8.0-CURRENT amd64 here on a Turion64 X2 machine. Without
malloc debugging (malloc.conf -> aj) 'make test' takes 25s; after
removing malloc.conf thus turning on debugging, it takes over 10
minutes.
--
Bruce Cran
More information about the freebsd-hackers
mailing list