Re: top for postgresql (ptop?)

On Tue, 25 Sep 2007, Luke Lonergan wrote:

> One strategy we've considered is to use the same approach as "pstack" on
> Solaris - it takes a pid and dumps the stack of a backend, which clearly
> shows which executor node is being worked on currently. I think pstack
> uses dtrace underneath the hood...

pstack has been around since the SunOS days, long before dtrace was in
Solaris, so it at least used to operate some other way. I know they added
some features to Solaris 10 that let pstack look into Java librarites that
may leverage dtrace, but I don't believe the internals of the main pstack
tool rely on it when looking at regular processes.

It's also worth noting that there's a similar Linux utility called gstack.

--
* Greg Smith gsmith(at)gregsmith(dot)com http://www.gregsmith.com Baltimore, MD