Am 18.10.2014 um 08:22 schrieb Lukas Fleischer:
After a more thorough analysis by Jan, we found out that the issue is
caused by a bug in the new OpenCL benchmark code. On modern CPUs, the
benchmark is executed on every start of ImageMagick which leads to huge
number of __memcpy_avx_unaligned() ca
On Fri, 17 Oct 2014 at 20:58:22, Lukas Fleischer wrote:
> [...]
> Anatol and I were able to reproduce this issue. It seems to be related
> to __memcpy_avx_unaligned() in glibc which means that it only occurs on
> architectures with the AVX extension.
>
> If you have a look at the memcpy-avx-unalig
On Fri, 17 Oct 2014 at 04:39:33, Matthew Wynn wrote:
> After upgrading to imagemagick 6.8.9.8-1, I've found it to be a lot slower
> than 6.8.9.7-1. I only get this issue when downloading from the repositories
> or using the PKGBUILD, not when compiling using the instructions at
> imagemagic.org
ki.kernel.org/index.php/Tutorial
>
> If you have a specific perf command that would be more revealing?
>
> > Date: Thu, 16 Oct 2014 19:54:21 -0700
> > From: anatol.pomo...@gmail.com
> > To: arch-general@archlinux.org
> > Subject: Re: [arch-general] imagemagick 6.8.
?
> Date: Thu, 16 Oct 2014 19:54:21 -0700
> From: anatol.pomo...@gmail.com
> To: arch-general@archlinux.org
> Subject: Re: [arch-general] imagemagick 6.8.9.8-1 is slower than 6.8.9.7-1
>
> Hi
>
> On Thu, Oct 16, 2014 at 7:39 PM, Matthew Wynn wrote:
>
> > After u
Hi
On Thu, Oct 16, 2014 at 7:39 PM, Matthew Wynn wrote:
> After upgrading to imagemagick 6.8.9.8-1, I've found it to be a lot slower
> than 6.8.9.7-1. I only get this issue when downloading from the
> repositories or using the PKGBUILD, not when compiling using the
> instructions at imagemagic.
After upgrading to imagemagick 6.8.9.8-1, I've found it to be a lot slower than
6.8.9.7-1. I only get this issue when downloading from the repositories or
using the PKGBUILD, not when compiling using the instructions at imagemagic.org.
I've discussed the issue with the ImageMagick developers, w
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