Václav Haisman wrote:
Hi.I have noticed that Cygwin's spinlock goes into heavy sleeping code for each spin. It seems it would be a good idea to actually try to spin a bit first. There is this 'pause' instruction which let's the CPU make such busy loops be less busy. Here is a patch to do this.
I wanted to try out this patch but compilation is failing on the "unlikely" call. Is that a macro that needs defining or something else?
Thanks, ..mark
