On 11/20/2015 04:55 PM, Aaron Lu wrote:
> On 11/19/2015 09:29 PM, Vlastimil Babka wrote:
>> +CC Andrea, David, Joonsoo
>>
>> On 11/19/2015 10:29 AM, Aaron Lu wrote:
>>> The vmstat and perf-profile are also attached, please let me know if you
>>> need any more information, thanks.
>>
>> Output from vmstat (the tool) isn't much useful here, a periodic "cat 
>> /proc/vmstat" would be much better.
> 
> No problem.
> 
>> The perf profiles are somewhat weirdly sorted by children cost (?), but 
>> I noticed a very high cost (46%) in pageblock_pfn_to_page(). This could 
>> be due to a very large but sparsely populated zone. Could you provide 
>> /proc/zoneinfo?
> 
> Is a one time /proc/zoneinfo enough or also a periodic one?

Please see attached, note that this is a new run so the perf profile is
a little different.

Thanks,
Aaron