net.server_epoll: Process all queued events from epoll before timers
Should call timers less frequently when many sockets are waiting for
processing. May help under heavy load.
Requested by Ge0rG
Backport of 2bcd84123eba requested by Roi
--- a/net/server_epoll.lua Tue Oct 12 14:53:45 2021 +0200
+++ b/net/server_epoll.lua Thu Oct 21 15:59:16 2021 +0200
@@ -771,7 +771,7 @@
repeat
local t = runtimers(cfg.max_wait, cfg.min_wait);
local fd, r, w = poll:wait(t);
- if fd then
+ while fd do
local conn = fds[fd];
if conn then
if r then
@@ -784,7 +784,9 @@
log("debug", "Removing unknown fd %d", fd);
poll:del(fd);
end
- elseif r ~= "timeout" and r ~= "signal" then
+ fd, r, w = poll:wait(0);
+ end
+ if r ~= "timeout" and r ~= "signal" then
log("debug", "epoll_wait error: %s[%d]", r, w);
end
until once or (quitting and next(fds) == nil);