Hi,
Le 05/11/2010 10:32, Holger Freyther a écrit :
On 11/04/2010 08:14 PM, Eric Bénard wrote:
in the painting engine, from what I saw in the .h, the asm optimisations are
only enabled when using ARM RCVT compiler and not when using gcc but I have
not checked everywhere in the code so I'm not sure of this.
that is something else, I also have a partially applied C implementation that
appears to be faster than the brute force armv6 code.
OK where is the code you are talking about in qt ?
One benefit of using armv6 is that the atomic code will use a different
implementation (ldrex,strex IIRC instead of swp). In any case please use
something like qttracereply to see if passing armv6 is giving any benefit at
all.
I can, do you have a quick howto run this ?
One thing : what I see here is that qtdemo was crashing after a random time
and now (with armv6) it runs stable for hours.
Eric
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