From: | Andres Freund <andres(at)anarazel(dot)de> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | pgsql-committers(at)postgresql(dot)org |
Subject: | Re: pgsql: Improve LWLock scalability. |
Date: | 2014-12-25 19:19:00 |
Message-ID: | 20141225191900.GJ31801@alap3.anarazel.de |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-committers |
On 2014-12-25 14:13:08 -0500, Tom Lane wrote:
> Andres Freund <andres(at)anarazel(dot)de> writes:
> > This broke dtrace probes in a trivial way. Looking at the log made me
> > notice though that the probes in lwlock.c generate warnings since the
> > tranche changes went in.
>
> Yeah, dtrace has never behaved very nicely with "const foo *" arguments.
> This is a bug in dtrace, not in our usage of it, and I don't think we
> should de-constify our code to work around the warnings.
Great, agreed.
> > Personally I think at this point we could just rip the probe support
> > out, but I'm not going to fight for that in earnest.
>
> Not without a replacement for the functionality, IMO.
Fine with me, I just always had the impression that nobody uses them - I
very well might be wrong. Personally I just use 'perf probe' to add
tracepoints dynamically, where I need them. I assume others are doing
similar things.
Greetings,
Andres Freund
--
Andres Freund http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
From | Date | Subject | |
---|---|---|---|
Next Message | Noah Misch | 2014-12-25 19:19:26 | pgsql: Have config_sspi_auth() permit IPv6 localhost connections. |
Previous Message | Tom Lane | 2014-12-25 19:13:08 | Re: pgsql: Improve LWLock scalability. |