postgres-xc-developers Mailing List for Postgres-XC

You can find answers in this report.
 * https://www.pgecons.org/downloads/43
While this is also written in Japanese, you can apply a machine
translator. You can copy and paste all sentences including texts in
the figure.

Rough summary of their considerations is...
 * Why the perf result of PostgreSQL decreased -> they had much
memories and high-performance CPU in 2012 compared to 2013.
 * Why the 4XCnode is much more than 4 times faster -> 4X cache
memories (sum of cache memory in all data nodes) gave such
improvement.

On 16 June 2014 13:42, wormwang <wor...@ya...> wrote:
> Why the perf result of PostgreSQL decreased from 2084 to 910 at  2012 to
> 2013 at the Pgbench results?
> and Why the 4XCnode is much more than 4 times faster than 1 PostgreSQL?
>
> -worm
>
> On 2014/6/16 9:18, 鈴木 幸市 wrote:
>> Scalability result for DBT-1 will be found at https://sourceforge.net/apps/mediawiki/postgres-xc/index.php?title=Scalability
>> which is linked from the main page of Postgres-XC Wiki, https://sourceforge.net/apps/mediawiki/postgres-xc/index.php?title=Main_Page
>>
>> Pgbench result has been published at https://www.pgecons.org/wp-content/uploads/2014/pgecons2013png/wg1_scale-out.png
>> Sorry, it is in Japanese.
>>
>> Regards;
>> ---
>> Koichi Suzuki
>>
>> 2014/06/15 19:32、wormwang <wor...@ya...> のメール：
>>
>>> Hi! guys
>>>    I want studying Postgres-XC v1.2 for new project. I
>>>    Where is the benchmark testing of Postgres-XC? I saw a old benchmark
>>> in Website, I can't find it now.
>>>
>>> -worm
>>>
>>> ------------------------------------------------------------------------------
>>> HPCC Systems Open Source Big Data Platform from LexisNexis Risk Solutions
>>> Find What Matters Most in Your Big Data with HPCC Systems
>>> Open Source. Fast. Scalable. Simple. Ideal for Dirty Data.
>>> Leverages Graph Analysis for Fast Processing & Easy Data Exploration
>>> http://p.sf.net/sfu/hpccsystems
>>> _______________________________________________
>>> Postgres-xc-developers mailing list
>>> Pos...@li...
>>> https://lists.sourceforge.net/lists/listinfo/postgres-xc-developers
>>>
>
>
> ------------------------------------------------------------------------------
> HPCC Systems Open Source Big Data Platform from LexisNexis Risk Solutions
> Find What Matters Most in Your Big Data with HPCC Systems
> Open Source. Fast. Scalable. Simple. Ideal for Dirty Data.
> Leverages Graph Analysis for Fast Processing & Easy Data Exploration
> http://p.sf.net/sfu/hpccsystems
> _______________________________________________
> Postgres-xc-developers mailing list
> Pos...@li...
> https://lists.sourceforge.net/lists/listinfo/postgres-xc-developers

Hello;

This is to announce the renewal of Postgres-XC roadmap and bug list page, at
https://sourceforge.net/apps/mediawiki/postgres-xc/index.php?title=Roadmap
and https://sourceforge.net/apps/mediawiki/postgres-xc/index.php?title=Bugs

Now roadmap and its priority is subject to open discussion/input/proposal.

It is very helpful to have an input of usecase of the feature, more
bug report and to share your experience with XC.

Best Regards;
---
Koichi Suzuki

On Mon, Jun 16, 2014 at 6:31 PM, 鈴木 幸市 <ko...@in...> wrote:
> As much as I heard, their benchmark in 2012 was not correct.   I had some talk with PGECons people and they made several correction on it.
> ---
> Koichi Suzuki
>
> 2014/06/16 13:42、wormwang <wor...@ya...> のメール：
>
>> Why the perf result of PostgreSQL decreased from 2084 to 910 at  2012 to 2013 at the Pgbench results?
>> and Why the 4XCnode is much more than 4 times faster than 1 PostgreSQL?
Btw, it is hard to give to those tests much value without more details about:
- The hardware used. How many CPUs? How much memory?
- The settings of server, like postgresql.conf. How many shared
buffers? Was catalog and/or pgbench data cached? pre-warmed perhaps?
- Structure of the cluster (1Co/1Da per server, all at the same place?)
-- 
Michael

As much as I heard, their benchmark in 2012 was not correct.   I had some talk with PGECons people and they made several correction on it.
---
Koichi Suzuki

2014/06/16 13:42、wormwang <wor...@ya...> のメール：

> Why the perf result of PostgreSQL decreased from 2084 to 910 at  2012 to 2013 at the Pgbench results?
> and Why the 4XCnode is much more than 4 times faster than 1 PostgreSQL?
> 
> -worm
> 
> On 2014/6/16 9:18, 鈴木 幸市 wrote:
>> Scalability result for DBT-1 will be found at https://sourceforge.net/apps/mediawiki/postgres-xc/index.php?title=Scalability
>> which is linked from the main page of Postgres-XC Wiki, https://sourceforge.net/apps/mediawiki/postgres-xc/index.php?title=Main_Page
>> 
>> Pgbench result has been published at https://www.pgecons.org/wp-content/uploads/2014/pgecons2013png/wg1_scale-out.png
>> Sorry, it is in Japanese.
>> 
>> Regards;
>> ---
>> Koichi Suzuki
>> 
>> 2014/06/15 19:32、wormwang <wor...@ya...> のメール：
>> 
>>> Hi! guys
>>>   I want studying Postgres-XC v1.2 for new project. I
>>>   Where is the benchmark testing of Postgres-XC? I saw a old benchmark
>>> in Website, I can't find it now.
>>> 
>>> -worm
>>> 
>>> ------------------------------------------------------------------------------
>>> HPCC Systems Open Source Big Data Platform from LexisNexis Risk Solutions
>>> Find What Matters Most in Your Big Data with HPCC Systems
>>> Open Source. Fast. Scalable. Simple. Ideal for Dirty Data.
>>> Leverages Graph Analysis for Fast Processing & Easy Data Exploration
>>> http://p.sf.net/sfu/hpccsystems
>>> _______________________________________________
>>> Postgres-xc-developers mailing list
>>> Pos...@li...
>>> https://lists.sourceforge.net/lists/listinfo/postgres-xc-developers
>>> 
> 
> 

Why the perf result of PostgreSQL decreased from 2084 to 910 at  2012 to 
2013 at the Pgbench results?
and Why the 4XCnode is much more than 4 times faster than 1 PostgreSQL?

-worm

On 2014/6/16 9:18, 鈴木 幸市 wrote:
> Scalability result for DBT-1 will be found at https://sourceforge.net/apps/mediawiki/postgres-xc/index.php?title=Scalability
> which is linked from the main page of Postgres-XC Wiki, https://sourceforge.net/apps/mediawiki/postgres-xc/index.php?title=Main_Page
>
> Pgbench result has been published at https://www.pgecons.org/wp-content/uploads/2014/pgecons2013png/wg1_scale-out.png
> Sorry, it is in Japanese.
>
> Regards;
> ---
> Koichi Suzuki
>
> 2014/06/15 19:32、wormwang <wor...@ya...> のメール：
>
>> Hi! guys
>>    I want studying Postgres-XC v1.2 for new project. I
>>    Where is the benchmark testing of Postgres-XC? I saw a old benchmark
>> in Website, I can't find it now.
>>
>> -worm
>>
>> ------------------------------------------------------------------------------
>> HPCC Systems Open Source Big Data Platform from LexisNexis Risk Solutions
>> Find What Matters Most in Your Big Data with HPCC Systems
>> Open Source. Fast. Scalable. Simple. Ideal for Dirty Data.
>> Leverages Graph Analysis for Fast Processing & Easy Data Exploration
>> http://p.sf.net/sfu/hpccsystems
>> _______________________________________________
>> Postgres-xc-developers mailing list
>> Pos...@li...
>> https://lists.sourceforge.net/lists/listinfo/postgres-xc-developers
>>

On Mon, Jun 16, 2014 at 10:18 AM, 鈴木 幸市 <ko...@in...> wrote:
> Pgbench result has been published at https://www.pgecons.org/wp-content/uploads/2014/pgecons2013png/wg1_scale-out.png
> Sorry, it is in Japanese.
Title: comparison 2012/2013

Up graph: read load
Down graph: write load
The rest can be guessed.
-- 
Michael

Scalability result for DBT-1 will be found at https://sourceforge.net/apps/mediawiki/postgres-xc/index.php?title=Scalability
which is linked from the main page of Postgres-XC Wiki, https://sourceforge.net/apps/mediawiki/postgres-xc/index.php?title=Main_Page

Pgbench result has been published at https://www.pgecons.org/wp-content/uploads/2014/pgecons2013png/wg1_scale-out.png
Sorry, it is in Japanese.

Regards;
---
Koichi Suzuki

2014/06/15 19:32、wormwang <wor...@ya...> のメール：

> Hi! guys
>   I want studying Postgres-XC v1.2 for new project. I
>   Where is the benchmark testing of Postgres-XC? I saw a old benchmark 
> in Website, I can't find it now.
> 
> -worm
> 
> ------------------------------------------------------------------------------
> HPCC Systems Open Source Big Data Platform from LexisNexis Risk Solutions
> Find What Matters Most in Your Big Data with HPCC Systems
> Open Source. Fast. Scalable. Simple. Ideal for Dirty Data.
> Leverages Graph Analysis for Fast Processing & Easy Data Exploration
> http://p.sf.net/sfu/hpccsystems
> _______________________________________________
> Postgres-xc-developers mailing list
> Pos...@li...
> https://lists.sourceforge.net/lists/listinfo/postgres-xc-developers
> 

Hi! guys
   I want studying Postgres-XC v1.2 for new project. I
   Where is the benchmark testing of Postgres-XC? I saw a old benchmark 
in Website, I can't find it now.

-worm