Re: testing HS/SR - 1 vs 2 performance - Mailing list pgsql-hackers

From Erik Rijkers
Subject Re: testing HS/SR - 1 vs 2 performance
Date
Msg-id 447e467376088e0e1cf10aee567dd541.squirrel@webmail.xs4all.nl
Whole thread Raw
In response to Re: testing HS/SR - 1 vs 2 performance  (Simon Riggs <simon@2ndQuadrant.com>)
List pgsql-hackers
On Tue, May 4, 2010 18:19, Simon Riggs wrote:
> On Tue, 2010-05-04 at 18:10 +0200, Erik Rijkers wrote:
>> It would be interesting if anyone repeated these simple tests and
>> produced evidence that these non-HS.
>>
>> (Unfortunately, I have at the moment not much time for more testing)
>
> Would you be able to make those systems available for further testing?

No. sorry.

> First, I'd perform the same test with the systems swapped, so we know
> more about the symmetry of the issue. After that, would like to look
> more into internals.

you mean "systems swapped", primary and standby?  primary and standby were on the same machine in
these tests (even the same raid).

I can eventually move the standby (the 'slow' side, as it stands) to another, quite similar
machine.  Not in the coming days though...


> Is it possible to setup SytemTap and dtrace on these systems?

I did install systemtap last week. dtrace is not installed (I think. I've never used either.)



Erik Rijkers



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