of keeping
it in memory (should it be really needed) ?
Harald
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no fx, no carrier pigeon
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EuroPython 2009 will take place in Birmingham - Stay tuned!
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Harald Massa
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Harald Armin Massa
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EuroPython 2008 will take place in Vilnius, Lithuania - Stay tuned!
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To make changes
8.1 ???
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EuroPython 2008 will take place in Vilnius, Lithuania - Stay tuned!
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persuadere et programmare
Harald Armin Massa
Spielberger Straße 49
70435 Stuttgart
0173/9409607
fx 01212-5-13695179
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EuroPython 2008 will take place in Vilnius, Lithuania - Stay tuned!
) of the speed has
doubled.
If reality confirmes, that 8.2 to 8.3 will be a small step in versions, and
a great step in databases.
Harald
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GHUM Harald Massa
persuadere et programmare
Harald Armin Massa
Spielberger Straße 49
70435 Stuttgart
0173/9409607
fx 01212-5-13695179
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EuroPython 2008 will take place
Harald Massa
persuadere et programmare
Harald Armin Massa
Spielberger Straße 49
70435 Stuttgart
0173/9409607
fx 01212-5-13695179
-
EuroPython 2008 will take place in Vilnius, Lithuania - Stay tuned!
Armin Massa
Spielberger Straße 49
70435 Stuttgart
0173/9409607
fx 01212-5-13695179
-
EuroPython 2007 will take place in Vilnius, Lithuania from Monday 9th July
to Wednesday 11th July. See you there!
.
Harald
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GHUM Harald Massa
persuadere et programmare
Harald Armin Massa
Spielberger Straße 49
70435 Stuttgart
0173/9409607
fx 01212-5-13695179
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EuroPython 2007 will take place in Vilnius, Lithuania from Monday 9th July
to Wednesday 11th July. See you there!
it took locally.
Also, PG can now COPY from a query, so you don't really need the temp
table...
I know, but was stuck to 8.1 on some servers.
Best wishes,
Harald
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GHUM Harald Massa
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not find a solution so far; and for bulk data transfers I now
programmed a workaround.
Harald
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GHUM Harald Massa
persuadere et programmare
Harald Armin Massa
Spielberger Straße 49
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EuroPython 2007 will take place in Vilnius, Lithuania from Monday
on Windows: set
shared_buffers to minimum * 2
Adjust effective_cache_size to the number given as system cache
within the task manager.
Harald
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Harald Armin Massa
Reinsburgstraße 202b
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Python: the only language
persuadere et programmare
Harald Armin Massa
Reinsburgstraße 202b
70197 Stuttgart
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Python: the only language with more web frameworks than keywords.
---(end of broadcast)---
TIP 9: In versions below 8.0, the planner
version possible (perhaps even for money
:) which gives nice graphics and optimized, like those Windows Optimizers.
:) I am sure, some DBAs in BIGCOMPs would be thrilled :)
May that be a possible way?
Harald
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.
And I really did not want to discredit the idea of properly configuring from
the start. Just wanted to open an other option to do that tuning.
Harald
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Python
shared_buffers yielded
better results.
Growing effective_cache_size yielded the best results for me.
Harald
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Harald Armin Massa
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Python: the only language with more web frameworks than
default 2, and the system
is responding better; especially after fixing the available memory setting
within the planner.
... frustrating part is, I could not replicate this behavious with pg_bench
:(
Harald
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Does the one that ships in the installer not work?//Magnusit does work.*putting ashes on my head*Googled around and only found pgbench.c; never looked in program directory. Sorry, my mistake.
Harald-- GHUM Harald Massa
persuadere et programmareHarald Armin MassaReinsburgstraße 202b70197
Mark, And THAT is exactly the challenge of this thread: I am searching for
tools to check shared memory usage on Windows. ipcs is not available. And neither Magnus nor Dave, both main contributors of the win32 port of PostgreSQL, and both way wiser concerning Windows internas then me,
know of
Performance readers I follow up my promise:I try my theories :)) and contrary to all wisdom from all PostgreSQL
tuning recommendations reconfigured shared memory nearly to theminimum: 1000 for maximum of 400 concurrent connections. (800 would beminimum). Single user performance was fine, now I
Hello Performancers,has anyone a pgBench tool running on Windows?I want to experiment with various settings to tune; and would prefer using something ready made before coming up with my own misstakes.
Harald-- GHUM Harald Massapersuadere et programmareHarald Armin MassaReinsburgstraße 202b70197
the hard way that just rising it can lead to a hard
performance loss :)
Harald
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GHUM Harald Massa
persuadere et programmare
Harald Armin Massa
Reinsburgstraße 202b
70197 Stuttgart
0173/9409607
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Python: the only language with more web frameworks than keywords.
---(end
Magnus, So: has anybody a hint how I can check how much shared_memory is really used by PostgreSQL on Windows, to fine tune this parameter?
I learned the hard way that just rising it can lead to a hard performance loss :)Not really sure :) We're talking about anonymous mapped memory, and Idon't
to
access files on disk as memory areas; with the hope of propably better
caching then not-memory-mapped files.
That would explain my disturbing impressions of performance of
PostgreSQL on win32 rising when lowering shared_memory...
Harald
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Harald Armin Massa
:)
Thanks for your thoughts,
Harald
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GHUM Harald Massa
persuadere et programmare
Harald Armin Massa
Reinsburgstraße 202b
70197 Stuttgart
0173/9409607
-
Python: the only language with more web frameworks than keywords.
---(end of broadcast)---
TIP 2: Don't
memory nearly to the
minimum: 1000 for maximum of 400 concurrent connections. (800 would be
minimum). Single user performance was fine, now I am looking forward
to full user scenario tomorrow.
I will keep you posted.
Harald
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persuadere et programmare
Harald Armin Massa
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