| From: | Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com> |
|---|---|
| To: | John Naylor <john(dot)naylor(at)2ndquadrant(dot)com>, David Rowley <david(dot)rowley(at)2ndquadrant(dot)com> |
| Cc: | PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: Delay locking partitions during INSERT and UPDATE |
| Date: | 2019-01-24 21:17:12 |
| Message-ID: | 20947de7-ed29-c640-0b40-d62598749778@2ndquadrant.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
On 1/24/19 9:50 PM, John Naylor wrote:
> On Wed, Jan 23, 2019 at 7:56 PM David Rowley
> <david(dot)rowley(at)2ndquadrant(dot)com> wrote:
>> On Thu, 24 Jan 2019 at 13:38, John Naylor <john(dot)naylor(at)2ndquadrant(dot)com> wrote:
>>> Hmm, now instead of an 85x speedup over master in the 10k partition
>>> case, I only get 20x. Anyone else see this?
>>
>> What's it like with fsync off?
>
> No change. Just in case, I tried git bisect and also recreated the
> cluster, but never got the same performance as my first test, so not
> sure what happened.
I can still see about the same performance as before (on both clusters).
regards
--
Tomas Vondra http://www.2ndQuadrant.com
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Robert Haas | 2019-01-24 21:22:47 | Re: Protect syscache from bloating with negative cache entries |
| Previous Message | Jeremy Finzel | 2019-01-24 20:57:02 | Implicit timezone conversion replicating from timestamp to timestamptz? |