Re: TODO : Allow parallel cores to be used by vacuumdb [ WIP ]
От | Tom Lane |
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Тема | Re: TODO : Allow parallel cores to be used by vacuumdb [ WIP ] |
Дата | |
Msg-id | 11450.1405484914@sss.pgh.pa.us обсуждение исходный текст |
Ответ на | Re: TODO : Allow parallel cores to be used by vacuumdb [ WIP ] (Dilip kumar <dilip.kumar@huawei.com>) |
Ответы |
Re: TODO : Allow parallel cores to be used by vacuumdb [
WIP ]
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Список | pgsql-hackers |
Dilip kumar <dilip.kumar@huawei.com> writes: > On 15 July 2014 19:01, Magnus Hagander Wrote, >> I am late to this game, but the first thing to my mind was - do we >> really need the whole forking/threading thing on the client at all? > Thanks for the review, I understand you point, but I think if we have do this directly by independent connection, > It's difficult to equally divide the jobs b/w multiple independent connections. That argument seems like complete nonsense. You're confusing work allocation strategy with the implementation technology for the multiple working threads. I see no reason why a good allocation strategy couldn't work with either approach; indeed, I think it would likely be easier to do some things *without* client-side physical parallelism, because that makes it much simpler to handle feedback between the results of different operational threads. regards, tom lane
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