Re: Suppressing useless wakeups in walreceiver
| От | Nathan Bossart |
|---|---|
| Тема | Re: Suppressing useless wakeups in walreceiver |
| Дата | |
| Msg-id | 20221010181014.GC993859@nathanxps13 обсуждение исходный текст |
| Ответ на | Re: Suppressing useless wakeups in walreceiver (Nathan Bossart <nathandbossart@gmail.com>) |
| Ответы |
Re: Suppressing useless wakeups in walreceiver
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| Список | pgsql-hackers |
On Mon, Oct 10, 2022 at 10:51:14AM -0700, Nathan Bossart wrote: >> + /* Find the soonest wakeup time, to limit our nap. */ >> + nextWakeup = INT64_MAX; >> + for (int i = 0; i < NUM_WALRCV_WAKEUPS; ++i) >> + nextWakeup = Min(state.wakeup[i], nextWakeup); >> + nap = Max(0, (nextWakeup - now + 999) / 1000); Hm. We should probably be more cautious here since nextWakeup is an int64 and nap is an int. My guess is that we should just set nap to -1 if nextWakeup > INT_MAX. -- Nathan Bossart Amazon Web Services: https://aws.amazon.com
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