| From: | Andres Freund <andres(at)anarazel(dot)de> |
|---|---|
| To: | Peter Geoghegan <pg(at)heroku(dot)com> |
| Cc: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: CLUSTER, reform_and_rewrite_tuple(), and parallelism |
| Date: | 2016-08-18 00:36:55 |
| Message-ID: | 20160818003655.o24endpd5dsokj4n@alap3.anarazel.de |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
On 2016-08-17 17:35:32 -0700, Peter Geoghegan wrote:
> On Wed, Aug 17, 2016 at 5:20 PM, Andres Freund <andres(at)anarazel(dot)de> wrote:
> > libc isn't compiled with -fno-omit-frame-pointer (and even if, it uses
> > assembly without setup of the frame pointer), so frame pointer based
> > call graphs are wrong through libc. The attributions are based on
> > random stuff in the frame pointer at that point. You either need to use
> > dwarf or lbr to get accurate ones.
>
> Is it worth doing that here, and redoing the test, so that the glibc
> attributions are correct?
I'd say yes.
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Michael Paquier | 2016-08-18 00:38:35 | Re: Patch: initdb: "'" for QUOTE_PATH (non-windows) |
| Previous Message | Peter Geoghegan | 2016-08-18 00:35:32 | Re: CLUSTER, reform_and_rewrite_tuple(), and parallelism |