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.
> 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
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.