Hi,
On 2019-05-08 21:35:06 +0500, Andrey Borodin wrote:
> > 8 мая 2019 г., в 1:16, Andres Freund написал(а):
> >
> > We probably can't remove the ringbuffer concept from these places, but I
> > think we should allow users to disable them. Forcing bulk-loads, vacuum,
> > analytics queries to go t
Hi,
On 2019-05-08 10:08:03 -0400, Robert Haas wrote:
> On Tue, May 7, 2019 at 4:16 PM Andres Freund wrote:
> > Just to attach some numbers for this. On my laptop, with a pretty fast
> > disk (as in ~550MB/s read + write, limited by SATA, not the disk), I get
> > these results.
> >
> > [ results
> 8 мая 2019 г., в 1:16, Andres Freund написал(а):
>
> We probably can't remove the ringbuffer concept from these places, but I
> think we should allow users to disable them. Forcing bulk-loads, vacuum,
> analytics queries to go to the OS/disk, just because of a heuristic that
> can't be disab
On Wed, May 08, 2019 at 10:08:03AM -0400, Robert Haas wrote:
On Tue, May 7, 2019 at 4:16 PM Andres Freund wrote:
Just to attach some numbers for this. On my laptop, with a pretty fast
disk (as in ~550MB/s read + write, limited by SATA, not the disk), I get
these results.
[ results showing rin
On Tue, May 7, 2019 at 4:16 PM Andres Freund wrote:
> Just to attach some numbers for this. On my laptop, with a pretty fast
> disk (as in ~550MB/s read + write, limited by SATA, not the disk), I get
> these results.
>
> [ results showing ring buffers massively hurting performance ]
Links to som
Hi,
On 2016-04-06 12:57:16 +0200, Andres Freund wrote:
> While benchmarking on hydra
> (c.f.
> http://archives.postgresql.org/message-id/20160406104352.5bn3ehkcsceja65c%40alap3.anarazel.de),
> which has quite slow IO, I was once more annoyed by how incredibly long
> the vacuum at the the end of a
