Re: Sync Rep v17
| От | Fujii Masao |
|---|---|
| Тема | Re: Sync Rep v17 |
| Дата | |
| Msg-id | AANLkTi=Eu_s6BF7dzvNG_X2+6tc_qbBgn3mveBt5ih19@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: Sync Rep v17 (Simon Riggs <simon@2ndQuadrant.com>) |
| Ответы |
Re: Sync Rep v17
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| Список | pgsql-hackers |
Thanks for update of the patch! On Tue, Mar 1, 2011 at 3:40 AM, Simon Riggs <simon@2ndquadrant.com> wrote: >> SyncRepRemoveFromQueue seems not to be as short-term as we can >> use the spinlock. Instead, LW lock should be used there. You seem to have forgotten to fix the above-mentioned issue. A spinlock can be used only for very short-term operation like read/write of some shared-variables. The operation on the queue is not short, so should be protected by LWLock, I think. Regards, -- Fujii Masao NIPPON TELEGRAPH AND TELEPHONE CORPORATION NTT Open Source Software Center
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