Re: [PATCH] dtrace probes for memory manager
Tom Lane <tgl@sss.pgh.pa.us>
From: Tom Lane <tgl@sss.pgh.pa.us>
To: Zdenek Kotala <Zdenek.Kotala@Sun.COM>
Cc: "pgsql-hackers@postgresql.org" <pgsql-hackers@postgresql.org>
Date: 2009-11-13T21:06:16Z
Lists: pgsql-hackers
Zdenek Kotala <Zdenek.Kotala@Sun.COM> writes: > Attached patch contains new dtrace probes for memory management. This is a bad idea and I want to reject it outright. No ordinary user is really going to care about those details, and palloc is a sufficiently hot hot-spot that even the allegedly negligible overhead of an inactive dtrace probe is going to cost us. If this goes in, I will disable dtrace support in Red Hat's builds, and I rather imagine that other packagers will react similarly. regards, tom lane