On 11/17/21 6:10 PM, Mel Gorman wrote:
On Wed, Nov 17, 2021 at 05:38:28PM +0800, Gang Li wrote:
If those APIs are ok with you, I will send v2 soon.
1. prctl(PR_NUMA_BALANCING, PR_SET_THP_DISABLE);
It would be (PR_SET_NUMAB_DISABLE, 1)
2. prctl(PR_NUMA_BALANCING, PR_SET_THP_ENABLE);
An enable prctl will have the same problems as
prctl(PR_NUMA_BALANCING, PR_SET_NUMA_BALANCING, 0/1) -- it should have
meaning if the numa_balancing sysctl is disabled.
3. prctl(PR_NUMA_BALANCING, PR_GET_THP);
PR_GET_NUMAB_DISABLE
How about this:
1. prctl(PR_NUMA_BALANCING, PR_SET_NUMAB_DEFAULT); //follow global
2. prctl(PR_NUMA_BALANCING, PR_SET_NUMAB_DISABLE); //disable
3. prctl(PR_NUMA_BALANCING, PR_SET_NUMAB_ENABLE); //enable
4. prctl(PR_NUMA_BALANCING, PR_GET_NUMAB);
PR_SET_NUMAB_DISABLE/ENABLE can always have meaning whether the
numa_balancing sysctl is disabled or not,
--
Thanks,
Gang Li
