| From: | Stefan Kaltenbrunner <stefan(at)kaltenbrunner(dot)cc> |
|---|---|
| To: | Bruce Momjian <bruce(at)momjian(dot)us> |
| Cc: | Arvind Singh <arvindps(at)hotmail(dot)com>, "pgsql-general(at)postgresql(dot)org" <pgsql-general(at)postgresql(dot)org> |
| Subject: | Re: Postgres 9.3 beta log |
| Date: | 2013-08-10 19:52:48 |
| Message-ID: | 52069A10.7030508@kaltenbrunner.cc |
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| Lists: | pgsql-general pgsql-hackers |
On 08/10/2013 04:21 PM, Bruce Momjian wrote:
> On Sat, Aug 10, 2013 at 06:38:57AM +0000, Arvind Singh wrote:
>> as you can see it is for a single record "login88193" it places
>>
>> PARSER STATISTICS
>> PARSE ANALYSIS STATISTICS
>> REWRITER STATISTICS
>>
>> I know it appers because i have enabled log_parser_* options in log
>>
>> But what i request to know is the meaning of these statistics and how usefull
>> is can be for a server load evaluation
>
> You should look get the getrusage manual pages for the meaning of the
> values, and perhaps this for the meaning of these stages of a query:
>
> http://www.postgresql.org/developer/backend/
true - but it seems a bit dubious that all of them show basically zero
(or a constant time)
Stefan
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