On 1/18/23 13:52, David Geier wrote:
On 1/16/23 21:39, Pavel Stehule wrote:
po 16. 1. 2023 v 21:34 odesílatel Tomas Vondra
<tomas.von...@enterprisedb.com> napsal:
Hi,
there's minor bitrot in the Mkvcbuild.pm change, making cfbot
unhappy.
As for the patch, I don't have much comments. I'm wondering if
it'd be
useful to indicate which timing source was actually used for EXPLAIN
ANALYZE, say something like:
Planning time: 0.197 ms
Execution time: 0.225 ms
Timing source: clock_gettime (or tsc)
+1
I like the idea of exposing the timing source in the EXPLAIN ANALYZE
output.
It's a good tradeoff between inspectability and effort, given that
RDTSC should always be better to use.
If there are no objections I go this way.
Thinking about this a little more made me realize that this will cause
different pg_regress output depending on the platform. So if we go this
route we would at least need an option for EXPLAIN ANALYZE to disable
it. Or rather have it disabled by default and allow for enabling it.
Thoughts?
--
David Geier
(ServiceNow)
