Re: VACUUM memory management
| От | Ibrar Ahmed |
|---|---|
| Тема | Re: VACUUM memory management |
| Дата | |
| Msg-id | CALtqXTdfoQnaGPk59RA3vNWze7bEr+BE-BFViyUyojari1yhVA@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: VACUUM memory management (Robert Haas <robertmhaas@gmail.com>) |
| Ответы |
Re: VACUUM memory management
Re: VACUUM memory management |
| Список | pgsql-hackers |
On Wed, Dec 11, 2019 at 7:29 PM Robert Haas <robertmhaas@gmail.com> wrote:
On Mon, Dec 9, 2019 at 2:02 PM Ibrar Ahmed <ibrar.ahmad@gmail.com> wrote:
>> Did you see this thread?
>> https://postgr.es/m/CAGTBQpbDCaR6vv9=scXzuT8fSbckf=a3NgZdWFWZbdVugVht6Q@mail.gmail.com
>>
> Yes, and somehow did what is explained.
Did you modify Claudio's patch or write a totally new one?
I wrote completely new patch. I tried multiple techniques like using a list instead of fixed size array which I thought was most suitable here, but leave that because of conflict with Parallel Vacuum.
In either case, why did you choose that approach?
This is the simplest technique. I just divided the maintenance_work_mem in chunks and allocate chunks as needed. This technique change minimum code and do what we want to achieve.
If you wrote a totally new one, have you compared your work with Claudio's, to see if he covered
anything you might need to cover?
No, this part I missed, I will do that and will share my thoughts.
Please explain why your patch is
better/different than his.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
Ibrar Ahmed
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