Обсуждение: dtrace/systemtap/USDT support

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dtrace/systemtap/USDT support

От
Peter Eisentraut
Дата:
Could we please build the Debian packages of PostgreSQL with
--enable-dtrace, using systemtap-sdt-dev?  Maybe that wasn't very useful
in the past, but at least since kernel 4.8 you can use that for tracing
with perf.

-- 
Peter Eisentraut              http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services


Re: dtrace/systemtap/USDT support

От
Christoph Berg
Дата:
Re: Peter Eisentraut 2018-09-06 <5a925ee4-d26b-94fc-4a34-0ad24ed7d103@2ndquadrant.com>
> Could we please build the Debian packages of PostgreSQL with
> --enable-dtrace, using systemtap-sdt-dev?  Maybe that wasn't very useful
> in the past, but at least since kernel 4.8 you can use that for tracing
> with perf.

I was pondering about that earlier:
https://www.postgresql.org/message-id/20180512064611.GC19285@msg.df7cb.de

Do we want to enable that
[ ] on all architectures
[ ] on all distributions
[ ] for all PG major versions
?

Christoph


Re: dtrace/systemtap/USDT support

От
Peter Eisentraut
Дата:
On 06/09/2018 18:36, Christoph Berg wrote:
> Re: Peter Eisentraut 2018-09-06 <5a925ee4-d26b-94fc-4a34-0ad24ed7d103@2ndquadrant.com>
>> Could we please build the Debian packages of PostgreSQL with
>> --enable-dtrace, using systemtap-sdt-dev?  Maybe that wasn't very useful
>> in the past, but at least since kernel 4.8 you can use that for tracing
>> with perf.
> 
> I was pondering about that earlier:
> https://www.postgresql.org/message-id/20180512064611.GC19285@msg.df7cb.de

Hmm, that argument doesn't seem very specific.

FWIW, the PGDG CentOS packages have it enabled.

> Do we want to enable that
> [ ] on all architectures
> [ ] on all distributions
> [ ] for all PG major versions
> ?

I don't see why not all of them, unless there is one where it
specifically doesn't work.

-- 
Peter Eisentraut              http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services


Re: dtrace/systemtap/USDT support

От
Christoph Berg
Дата:
Re: Peter Eisentraut 2018-09-11 <37a1b781-b484-e56c-a799-016aea19df1b@2ndquadrant.com>
> FWIW, the PGDG CentOS packages have it enabled.

Thanks, that's encouraging.

> > Do we want to enable that
> > [ ] on all architectures
> > [ ] on all distributions
> > [ ] for all PG major versions
> > ?
> 
> I don't see why not all of them, unless there is one where it
> specifically doesn't work.

Aye, will do in the next round of minors.

Christoph