7 Jan
2016
7 Jan
'16
10:32 p.m.
On 01/07/16 14:29, H. Peter Anvin wrote:
I would be very interested in knowing if replacing the final clflushopt with a clflush would resolve your problems (in which case the last mb() shouldn't be necessary either.)
Nevermind. CLFLUSH is not ordered with regards to CLFLUSHOPT to the same cache line.
Could you add a sync_cpu(); call to the end (can replace the final mb()) and see if that helps your case?
-hpa