Re: big transaction slows down over time - but disk

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Am Dienstag, den 31.10.2006, 21:58 -0800 schrieb Ben:
> I've got a long-running, update-heavy transaction that increasingly slows 
> down the longer it runs. I would expect that behavior, if there was some 
> temp file creation going on. But monitoring vmstat over the life of the 
> transaction shows virtually zero disk activity. Instead, the system has 
> its CPU pegged the whole time.
> 
> So.... why the slowdown? Is it a MVCC thing? A side effect of calling 
> stored proceedures a couple hundred thousand times in a single 

Memory usage? Have you tried to checkpoint your transaction from time to
time?

Andreas

> transaction? Or am I just doing something wrong?
> 
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