Re: BUG #15187: When use huge page, there may be a lot of hangedconnections with status startup or authentication

On 2018-05-04 12:46:40 -0400, Tom Lane wrote:
> =?utf-8?q?PG_Bug_reporting_form?= <noreply@postgresql.org> writes:
> > Operating system:   CentOS release 6.5
> 
> > When use  huge page, there may be a lot of hanged connections with status
> > startup or authentication state when multiple concurrent query operations
> > are performed.
> 
> So don't do that.  RHEL6 kernels are pretty ancient at this point,
> and are known to have performance issues with huge pages.

They're known to have perf issues with *transparent* huge pages, not
huge pages, right?

Chen, have you disabled transparent hugepages and zone reclaim?

Greetings,

Andres Freund