Re: [HACKERS] POC: Sharing record typmods between backends

Поиск
Список
Период
Сортировка
От Dilip Kumar
Тема Re: [HACKERS] POC: Sharing record typmods between backends
Дата
Msg-id CAFiTN-u4uX2imtMVn_Q=7-TibM95gZkrs1Ep_Hnug=aO+r-YLA@mail.gmail.com
обсуждение исходный текст
Ответ на Re: [HACKERS] POC: Sharing record typmods between backends  (Thomas Munro <thomas.munro@enterprisedb.com>)
Ответы Re: [HACKERS] POC: Sharing record typmods between backends  (Robert Haas <robertmhaas@gmail.com>)
Список pgsql-hackers
On Tue, May 30, 2017 at 1:09 AM, Thomas Munro
<thomas.munro@enterprisedb.com> wrote:
>> * Perhaps simplehash + an LWLock would be better than dht, but I
>> haven't looked into that.  Can it be convinced to work in DSA memory
>> and to grow on demand?

Simplehash provides an option to provide your own allocator function
to it. So in the allocator function, you can allocate memory from DSA.
After it reaches some threshold it expands the size (double) and it
will again call the allocator function to allocate the bigger memory.
You can refer pagetable_allocate in tidbitmap.c.

-- 
Regards,
Dilip Kumar
EnterpriseDB: http://www.enterprisedb.com



В списке pgsql-hackers по дате отправления:

Предыдущее
От: Beena Emerson
Дата:
Сообщение: Re: [HACKERS] Default Partition for Range
Следующее
От: Konstantin Knizhnik
Дата:
Сообщение: Re: [HACKERS] Proposal : For Auto-Prewarm.