[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Image scaling performance

From: Michael Zimmermann
Subject: Re: Image scaling performance
Date: Thu, 26 Feb 2015 18:10:02 +0100

Is there a way to create a performance profile so I can see what
exactly needs so much time? I don't have JTAG but maybe UART+GDB could
help with that.

adding prints is kind of annoying :D

On Thu, Feb 26, 2015 at 5:44 PM, Vladimir 'φ-coder/phcoder' Serbinenko
<address@hidden> wrote:
> On 25.02.2015 19:46, Michael Zimmermann wrote:
>> I'm still questioning the efficiency
>> math operations because on slow devices there are other bottlenecks of
>> the same kind(like de/compression).
> That's pure speculation at that point. GRUB has 3 compression algorithms:
> - minilzo. Has some divisions in parts which GRUB doesn't use. Those parts
> are easily disablable and I'll just do so.
> - gzip. Uses division only in zlib header check. I'll optimise it a little
> but it's only one division in header check, not in compressed data body.
> - xz. No divisions
> _______________________________________________
> Grub-devel mailing list
> address@hidden

reply via email to

[Prev in Thread] Current Thread [Next in Thread]