On 11/9/21 5:19 PM, Mel Gorman wrote:
On Tue, Nov 09, 2021 at 04:28:28PM +0800, Gang Li wrote:
If the global tuning affects default behaviour and the prctl
affects specific behaviour. Then when prctl specifies
numa_balancing for a process, there is no way for the
global tuning to affect that process.
While I think it's very likely that the common case will be to disable
NUMA balancing for specific processes,
prctl(PR_NUMA_BALANCING,PR_SET_NUMA_BALANCING,1) should still be
meaningful.
I'm still a bit confused.
If we really want to enable/disable numa_balancing for all processes,
but some of them override the global numa_balancing using prctl, what
should we do?
Do we iterate through these processes to enable/disable them individually?