Re: pgbench -i spends all its time doing CHECKPOINT - Mailing list pgsql-hackers

From Bruce Momjian
Subject Re: pgbench -i spends all its time doing CHECKPOINT
Date
Msg-id 200201060644.g066ioD12529@candle.pha.pa.us
Whole thread Raw
In response to Re: pgbench -i spends all its time doing CHECKPOINT  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: pgbench -i spends all its time doing CHECKPOINT  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-hackers
Tom Lane wrote:
> Bruce Momjian <pgman@candle.pha.pa.us> writes:
> > Tom Lane wrote:
> >> Could we remove lines 552-560 of pgbench.c?  The behavior that guarded
> >> against is long gone, and forcing a checkpoint every few thousand tuples
> >> seems to be putting a huge crimp in the speed of pgbench -i ...
> 
> > I don't see any need for it.
> 
> Au contraire.  I'm nearly done with pgbench -i -s 500 after about an
> hour.  The unmodified code ran for several hours and was less than
> half done.

I meant I don't see any need for that checkpoint code.

--  Bruce Momjian                        |  http://candle.pha.pa.us pgman@candle.pha.pa.us               |  (610)
853-3000+  If your life is a hard drive,     |  830 Blythe Avenue +  Christ can be your backup.        |  Drexel Hill,
Pennsylvania19026
 


pgsql-hackers by date:

Previous
From: Tom Lane
Date:
Subject: Re: pgbench -i spends all its time doing CHECKPOINT
Next
From: Tom Lane
Date:
Subject: Re: pgbench -i spends all its time doing CHECKPOINT