Обсуждение: pgsql: Add some temporary code to record stack usage at server process

Add some temporary code to record stack usage at server process exit.

This patch is meant to gather information from the buildfarm members, and
will be reverted in a day or so.  The idea is to try to find out the
high-water stack consumption while running the regression tests,
particularly on IA64 which is suspected to use much more stack than other
architectures.  On machines with pmap, we can use that; but the IA64 farm
members are running HPUX, so also include some bespoke code for HPUX.
(I've tested the latter on HPUX 10/HPPA; not entirely sure it will work
on HPUX 11/IA64, but we'll soon find out.)

Discussion: <CAM-w4HMwwcwaVvYcAH0_FGtG5GeXdYVRfvG81pXnSJWHnCfosQ@mail.gmail.com>

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/88cf37d2a86d5b66380003d7c3384530e3f91e40

Modified Files
--------------
src/backend/storage/ipc/ipc.c | 47 +++++++++++++++++++++++++++++++++++++++++++
1 file changed, 47 insertions(+)

On 7/8/16 12:01 PM, Tom Lane wrote:
> Add some temporary code to record stack usage at server process exit.

In spite of the void cast, this is still warning

ipc.c:125: ignoring return value of ‘system’, declared with attribute
warn_unused_result [-Wunused-result]

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

Peter Eisentraut <peter.eisentraut@2ndquadrant.com> writes:
> On 7/8/16 12:01 PM, Tom Lane wrote:
>> Add some temporary code to record stack usage at server process exit.

> In spite of the void cast, this is still warning

> ipc.c:125: ignoring return value of ‘system’, declared with attribute
> warn_unused_result [-Wunused-result]

Don't really care, since the whole thing will be going away again once
we've collected a full set of buildfarm results ...

            regards, tom lane