terrible performance in 6.1beta4

[Miguel]

usleepless at gmail.com wrote:

>Miguel
>
>  
>
>>attached is my config file, shared_buffers are 25% of total RAM
>>im guessing that this is a disk controlled bug or something, when i
>>execute any query involving many rows, the server response is very low,
>>ssh, su, even copy or rename a file, cpu usage remains ~87% idle though
>>    
>>
>
>you are not inserting into an indexed table, are you?
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>  
>

yes, i am...
is that a problem?

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Miguel