Sorry, semantic miscommunication. It's a heavily used table and the 
performance of other queries done during the mass deletion slows, which 
is a problem since this is a near-realtime system where delays in 
queries cause performance issues in other dependent modules.

Jeremy Zawodny wrote:

>On Mon, Oct 29, 2001 at 05:49:57PM -0500, C. Williams wrote:
>
>>Does anyone know how to speed the performance of deletes on a large
>>table? I have a large table w/ approx. 180,000,000 rows, with the
>>following table structure:
>>
>
>[snip]
>
>>It takes approximately 45 seconds to delete an hour's worth of data( 
>>90323 rows) from the table, which tends to be a performance problem 
>>since it's a table with a fair amount of contention.
>>
>>Platform:      x86
>>OS:            RH Linux 2.4.6
>>MySQL V:       3.23.42-max
>>DB File Type:  InnoDB
>>Memory:        1 GB
>>HD:            130GB SCSI
>>
>
>If you're using InnoDB, where's the contention?
>
>Jeremy
>




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