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Re: insert performance for win32

This is a discussion on Re: insert performance for win32 within the Pgsql Performance forums, part of the PostgreSQL category; --> Nailed it. problem is in mainloop.c -> setup_cancel_handler. Apparently you can have multiple handlers and windows keeps track of ...


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  #1 (permalink)  
Old 04-19-2008, 06:29 AM
Merlin Moncure
 
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Default Re: insert performance for win32

Nailed it.

problem is in mainloop.c -> setup_cancel_handler. Apparently you can
have multiple handlers and windows keeps track of them all, even if they
do the same thing. Keeping track of so many system handles would
naturally slow the whole process down. Commenting that line times are
flat as a pancake. I am thinking keeping track of a global flag would
be appropriate.


Merlin


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  #2 (permalink)  
Old 04-19-2008, 06:29 AM
Tom Lane
 
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Default Re: [HACKERS] insert performance for win32

David Fetter <david@fetter.org> writes:
> On Fri, Nov 04, 2005 at 01:01:20PM -0500, Tom Lane wrote:
>> I'm inclined to treat this as an outright bug, not just a minor
>> performance issue, because it implies that a sufficiently long psql
>> script would probably crash a Windows machine.


> Ouch. In light of this, are we *sure* what we've got a is a candidate
> for release?


Sure. This problem exists in 8.0.* too. Pre-existing bugs don't
disqualify an RC in my mind --- we fix them and move on, same as we
would do at any other time.

regards, tom lane

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