Re: FUNC_MAX_ARGS benchmarks - Mailing list pgsql-hackers

From Joe Conway
Subject Re: FUNC_MAX_ARGS benchmarks
Date
Msg-id 3D503ED4.3050608@joeconway.com
Whole thread Raw
In response to Re: FUNC_MAX_ARGS benchmarks  (Peter Eisentraut <peter_e@gmx.net>)
List pgsql-hackers
Peter Eisentraut wrote:
> Joe Conway writes:
>>Here's the multi-user test summary. Very little difference. The details
>>of the OSDB output are attached.
>
> The fact that the OSDB benchmark has just about the least possible test
> coverage of identifier handling and you still get a 2% performance drop is
> something I'm concerned about.
>

Of course that's on the single user test only. In the multi-user test
the two are neck-and-neck. If you really want to be concerned, see the
attached. This lines up results from:

REL7_2_STABLE with NAMEDATALEN = 32 and FUNC_MAX_ARGS = 16
7.3devel      with NAMEDATALEN = 32 and FUNC_MAX_ARGS = 32
7.3devel      with NAMEDATALEN = 128 and FUNC_MAX_ARGS = 32

In the single-user test, REL7_2_STABLE is best by about 10%. But in the
multi-user test (10 users), *both* 7.3devel tests are about 3.5% faster
than 7.2.

Joe

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