On Mon, Jun 25, 2012 at 11:05 PM, Jeff Janes jeff.ja...@gmail.com wrote:
On Mon, Jun 18, 2012 at 5:42 PM, Robert Haas robertmh...@gmail.com wrote:
Hmm. That was actually a gloss I added on existing code to try to
convince myself that it was safe; I don't think that the changes I
made make
On Mon, Jun 18, 2012 at 5:42 PM, Robert Haas robertmh...@gmail.com wrote:
Hmm. That was actually a gloss I added on existing code to try to
convince myself that it was safe; I don't think that the changes I
made make that any more or less safe than it was before.
Right, sorry. I thought
On Fri, Jun 15, 2012 at 1:58 PM, Jeff Janes jeff.ja...@gmail.com wrote:
Do we need the retry flag (applies to two places)? If oldblkno is
still InvalidBlockNumber then it can't equal blkno.
I was a bit concerned that blkno = BUCKET_TO_BLKNO(metap, bucket)
might set blkno to InvalidBlockNumber,
On Wed, May 30, 2012 at 3:14 PM, Robert Haas robertmh...@gmail.com wrote:
I developed the attached patch to avoid taking a heavyweight lock on
the metapage of a hash index. Instead, an exclusive buffer content
lock is viewed as sufficient permission to modify the metapage, and a
shared buffer
2012/5/30 Robert Haas robertmh...@gmail.com:
I tested the effect of this by setting up a series of 5-minute
read-only pgbench run at scale factor 300 with 8GB of shared buffers
on the IBM POWER7 machine.
I know it doesn't matter, but out of curiosity what OS you used?
best regards,
--
On Thu, May 31, 2012 at 7:07 AM, Dickson S. Guedes lis...@guedesoft.net wrote:
2012/5/30 Robert Haas robertmh...@gmail.com:
I tested the effect of this by setting up a series of 5-minute
read-only pgbench run at scale factor 300 with 8GB of shared buffers
on the IBM POWER7 machine.
I know it
