From: | Ernesto Quiñones <ernestoq(at)gmail(dot)com> |
---|---|
To: | pgsql-performance(at)postgresql(dot)org |
Subject: | Re: Question about VACUUM |
Date: | 2011-12-03 13:11:49 |
Message-ID: | CAMB2kH6OHJ32hwvqRAkMoUr_X5rM0ZtR8s1QQSNjJbORR7mi+A@mail.gmail.com |
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Lists: | pgsql-performance |
Thanks for the answer Scott, actually my autovacuum_naptime is 1h ..
but I don't find naptime parameter for a manual vacuum
thanks again
2011/12/2 Scott Marlowe <scott(dot)marlowe(at)gmail(dot)com>:
> On Fri, Dec 2, 2011 at 8:32 PM, Ernesto Quiñones <ernestoq(at)gmail(dot)com> wrote:
>> Hi friends
>>
>> I want to know if it's possible to predict (calculate), how long a
>> VACUUM FULL process will consume in a table?
>>
>> can I apply some formula to calculate this?
>
> If you look at what iostat is doing while the vacuum full is running,
> and divide the size of the table by that k/sec you can get a good
> approximation of how long it will take. Do you have naptime set to
> anything above 0?
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