Re: Bitmap index status

Hi Jie,

Yeah, basically gather as many stats as I can to accurately profile the
overall system performance. I thought it would be appropriate to use a
TPC-H based workload as one measuring stick to use for bitmap indexes.

Mark

Jie Zhang wrote:
> Hi Mark,
>
> Thanks for doing the test. I checked out the link you provided below. I am a
> little confused about the goal of these tests. Do you plan to test the
> overall performance of postgreSQL on handling TPC-H queries?
>
> Thanks,
> Jie
>
> On 9/22/06 3:45 PM, "Mark Wong" <markw(at)osdl(dot)org> wrote:
>
>> Jie Zhang wrote:
>>> Hi Heikki and all,
>>>
>>> I just sent the latest bitmap index patch to the list. I am not sure if
>>> there is any size limit for this mailing list. If you have received my
>>> previous email, please let me know.
>> Hi Jie,
>>
>> I know I said I was going to get testing on this months ago but I've
>> been juggling between 3 systems due to disk failures and other hardware
>> configuration issues. Anyways, I've take a baseline run of only the
>> power test using a 1GB database with the patch 09-17 patch against a
>> snapshot of pgsql from 2006-09-17:
>>
>> http://dbt.osdl.org/dbt/dbt3testing/results/dev8-007/2/
>>
>> Do you think the 1GB scale factor will be sufficient for testing as it
>> will certainly be faster? Do you think testing with just a power test
>> will be sufficient for now? I really don't have a good reason why I
>> didn't run a throughput test other than to save time. :) I also wanted
>> to get your opinion again on which indexes we will want to try first.
>>
>> Thanks,
>> Mark
>>