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Bug#772435: slow SSD performance with Apple PCIe SSD on MBP 11.2



On Sat, 2014-12-06 at 23:42 +0000, Martin Zobel-Helas wrote:
> Package: src:linux
> Version: 3.16.7-2
> Severity: normal
> Tags: patch
> 
> Hi,
> 
> i have very bad disk IO performance on my MacBook Pro 11.2 with a
> Samsung PCIe SSD. This seems to be kernel issue
> https://bugzilla.kernel.org/show_bug.cgi?id=60731
> 
> Installing libreoffice on my MBP takes around 5 minutes without below
> settings.
> 
> http://article.gmane.org/gmane.linux.ide/58740 respectivly setting
> device_nomsi=0x1600144d as kernel command line seems to solve the issue
> for me.
> 
> It would be nice to include above patch into jessie kernel.

This fix was already included in 3.16.7-ckt2 and the next upload will be
based on that.

Ben.

-- 
Ben Hutchings
If you seem to know what you are doing, you'll be given more to do.

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