Performance tests I did with FreeBSD, Linux and PostgreSQL

[Scott Long]

Bill Moran wrote:
> Alexander Leidinger wrote:
>> I don't know if 5.1-RELEASE has malloc debugging enabled, but to be on
>> the safe side you should maybe do a "ln -s aj /etc/malloc.conf" before
>> you start PostgreSQL.

malloc debugging is disabled in 5.0-R and 5.1-R.  Once we hit
5-STABLE it will be turned off for good in the branch.

> 
> I may look into that, but it seems like the more important thing to do
> is test 4.8 at this point.
> 
> If you look at the times, these tests are time-consuming.  I probably
> should have reduced the number of records involved, but if I do that
> now, I have to rerun all the tests ...
> 

It would be interesting to see if the recent locking of the ATA driver
has any benefit on these tests.  Of course if you update to 5-CURRENT
then you'll need to disable INVARIANTS, WITNESS, and malloc debugging.

Scott