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net.server_epoll: Set minimum wait time to 1ms, matching epoll

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A timeout value less than 0.001 gets turned into zero on the C side, so
epoll_wait() returns instantly and essentially busy-loops up to 1ms,
e.g. when a timer event ends up scheduled (0, 0.001)ms into the future.

Unsure if this has much effect in practice, but it may waste a small
amount of CPU time. How much would depend on how often this ends up
happening and how fast the CPU gets trough main loop iterations.
This commit is contained in:
Kim Alvefur 2021-07-15 01:38:44 +02:00
parent 79f35dccf0
commit c611398c1f
1 changed files with 1 additions and 1 deletions
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2
net/server_epoll.lua
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@ -65,7 +65,7 @@ local default_config = { __index = {
-- Maximum and minimum amount of time to sleep waiting for events (adjusted for pending timers)
max_wait = 86400;
min_wait = 1e-06;
min_wait = 0.001;
-- Enable extra noisy debug logging
-- TODO disable once considered stable