On 02/13/2014 01:35 PM, David Rientjes wrote:
On Thu, 13 Feb 2014, Raghavendra K T wrote:
I was able to test (1) implementation on the system where readahead problem
occurred. Unfortunately it did not help.
Reason seem to be that CONFIG_HAVE_MEMORYLESS_NODES dependency of
numa_mem_id(). The PPC machine I am facing problem has topology like
this:
[...]
So it seems numa_mem_id() does not help for all the configs..
Am I missing something ?
You need the patch from http://marc.info/?l=linux-mm&m=139093411119013
first.
Thanks David, unfortunately even after applying that patch, I do not see
the improvement.
Interestingly numa_mem_id() seem to still return the value of a
memoryless node.
May be per cpu _numa_mem_ values are not set properly. Need to dig out ....
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@xxxxxxxxx. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>