Thanks for a lot of info. The more I think about spinlocks, the more I see
they don't really give as much as I thought. I was just trying to optimize
some code in a wrong way and probably at a wrong place too. It doesn't even
deserve a comment as it was quite a banal thing.
FYI, I am not going to
On Wed, 2010-12-15 at 09:19 -0800, Kristian Høgsberg wrote:
> On Wed, Dec 15, 2010 at 10:10 AM, Thomas Hellstrom
> wrote:
> ...
> > Given this, I would advise strongly against building spinlocks into any code
> > that might be run on a uni-processor system. Particularly gallium utility
> > code.
On Wed, Dec 15, 2010 at 10:10 AM, Thomas Hellstrom
wrote:
...
> Given this, I would advise strongly against building spinlocks into any code
> that might be run on a uni-processor system. Particularly gallium utility
> code.
> If we want to get rid of unnecessary locking overhead we should probab
OK, Some info to back this up, please see inline.
On 12/15/2010 01:20 PM, Thomas Hellstrom wrote:
On 12/15/2010 09:23 AM, Marek Olšák wrote:
On Tue, Dec 14, 2010 at 8:10 PM, Thomas Hellstrom
mailto:thellst...@vmware.com>> wrote:
Hmm,
for the uninformed, where do we need to use spinlo
On 12/15/2010 09:23 AM, Marek Olšák wrote:
On Tue, Dec 14, 2010 at 8:10 PM, Thomas Hellstrom
mailto:thellst...@vmware.com>> wrote:
Hmm,
for the uninformed, where do we need to use spinlocks in gallium
and how do
we avoid using them on an UP system?
I plan to use spinlocks to
UP = Uniprocessor system, (S)MP = (Symmetric) multiprocessor system.
On Wed, Dec 15, 2010 at 2:23 AM, Marek Olšák wrote:
> On Tue, Dec 14, 2010 at 8:10 PM, Thomas Hellstrom
> wrote:
>
>> Hmm,
>>
>> for the uninformed, where do we need to use spinlocks in gallium and how
>> do
>> we avoid using
On Tue, Dec 14, 2010 at 8:10 PM, Thomas Hellstrom wrote:
> Hmm,
>
> for the uninformed, where do we need to use spinlocks in gallium and how do
> we avoid using them on an UP system?
>
I plan to use spinlocks to guard very simple code like the macro
remove_from_list, which might be, under some ci
Hmm,
for the uninformed, where do we need to use spinlocks in gallium and how do
we avoid using them on an UP system?
/Thomas
On 12/14/2010 02:15 PM, Marek Olšák wrote:
---
src/gallium/auxiliary/os/os_thread.h | 51 ++
1 files changed, 51 insertions(+), 0
Looks good to me.
Keith
On Tue, 2010-12-14 at 05:15 -0800, Marek Olšák wrote:
> ---
> src/gallium/auxiliary/os/os_thread.h | 51
> ++
> 1 files changed, 51 insertions(+), 0 deletions(-)
>
> diff --git a/src/gallium/auxiliary/os/os_thread.h
> b/src/gallium/aux
---
src/gallium/auxiliary/os/os_thread.h | 51 ++
1 files changed, 51 insertions(+), 0 deletions(-)
diff --git a/src/gallium/auxiliary/os/os_thread.h
b/src/gallium/auxiliary/os/os_thread.h
index a084310..6c25b33 100644
--- a/src/gallium/auxiliary/os/os_thread.h
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