On 3/24/22 12:18, Thomas Zimmermann wrote:
Hi
Am 24.03.22 um 20:11 schrieb Guenter Roeck:
Hi,
On Wed, Feb 23, 2022 at 08:38:03PM +0100, Thomas Zimmermann wrote:
Improve the performance of cfb_imageblit() by manually unrolling
the inner blitting loop and moving some invariants out. The compile
Hi,
On Wed, Feb 23, 2022 at 08:38:03PM +0100, Thomas Zimmermann wrote:
> Improve the performance of cfb_imageblit() by manually unrolling
> the inner blitting loop and moving some invariants out. The compiler
> failed to do this automatically. This change keeps cfb_imageblit()
> in sync with sys_i
Hi
Am 24.03.22 um 20:11 schrieb Guenter Roeck:
Hi,
On Wed, Feb 23, 2022 at 08:38:03PM +0100, Thomas Zimmermann wrote:
Improve the performance of cfb_imageblit() by manually unrolling
the inner blitting loop and moving some invariants out. The compiler
failed to do this automatically. This chan
Hi Javier,
On Thu, Feb 24, 2022 at 10:03 AM Javier Martinez Canillas
wrote:
> On 2/23/22 21:25, Sam Ravnborg wrote:
> > Question: What is cfb an abbreviation for anyway?
> > Not related to the patch - but if I have known the memory is lost..
>
> I was curious so I dug on this. It seems CFB stands
Hi Javier,
On Thu, Feb 24, 2022 at 10:02:59AM +0100, Javier Martinez Canillas wrote:
> Hello Sam,
>
> On 2/23/22 21:25, Sam Ravnborg wrote:
>
> [snip]
>
> >
> > Question: What is cfb an abbreviation for anyway?
> > Not related to the patch - but if I have known the memory is lost..
> >
>
> I
Hello Sam,
On 2/23/22 21:25, Sam Ravnborg wrote:
[snip]
>
> Question: What is cfb an abbreviation for anyway?
> Not related to the patch - but if I have known the memory is lost..
>
I was curious so I dug on this. It seems CFB stands for Color Frame Buffer.
Doing a `git grep "(CFB)"` in the l
On 2/23/22 20:38, Thomas Zimmermann wrote:
> Improve the performance of cfb_imageblit() by manually unrolling
> the inner blitting loop and moving some invariants out. The compiler
> failed to do this automatically. This change keeps cfb_imageblit()
> in sync with sys_imagebit().
>
> A microbenchm
On Wed, Feb 23, 2022 at 08:38:03PM +0100, Thomas Zimmermann wrote:
> Improve the performance of cfb_imageblit() by manually unrolling
> the inner blitting loop and moving some invariants out. The compiler
> failed to do this automatically. This change keeps cfb_imageblit()
> in sync with sys_imageb
Improve the performance of cfb_imageblit() by manually unrolling
the inner blitting loop and moving some invariants out. The compiler
failed to do this automatically. This change keeps cfb_imageblit()
in sync with sys_imagebit().
A microbenchmark measures the average number of CPU cycles
for cfb_i
