| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Noah Misch <noah(at)leadboat(dot)com> |
| Cc: | Benoit Lobréau <benoit(dot)lobreau(at)gmail(dot)com>, Guillaume Lelarge <guillaume(at)lelarge(dot)info>, PostgreSQL Developers <pgsql-hackers(at)postgresql(dot)org>, "Dr(dot) Michael Meskes" <michael(dot)meskes(at)credativ(dot)com> |
| Subject: | Re: Probable memory leak with ECPG and AIX |
| Date: | 2022-01-01 16:35:02 |
| Message-ID: | 2865639.1641054902@sss.pgh.pa.us |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
Noah Misch <noah(at)leadboat(dot)com> writes:
> I get the same results. The leak arises because AIX freelocale() doesn't free
> all memory allocated in newlocale(). The following program uses trivial
> memory on GNU/Linux, but it leaks like you're seeing on AIX:
Bleah.
> If you have access to file an AIX bug, I recommend doing so. If we want
> PostgreSQL to work around this, one idea is to have ECPG do this newlocale()
> less often. For example, do it once per process or once per connection
> instead of once per ecpg_do_prologue().
It's worse than that: see also ECPGget_desc(). Seems like a case
could be made for doing something about this just on the basis
of cycles expended, never mind freelocale() bugs.
regards, tom lane
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Tomas Vondra | 2022-01-01 17:21:06 | Re: using extended statistics to improve join estimates |
| Previous Message | Zhihong Yu | 2022-01-01 15:33:10 | Re: Collecting statistics about contents of JSONB columns |