From: Eric Wong <e@80x24.org>
To: cmogstored-public@bogomips.org
Subject: [PATCH] doc/queues.txt: add key point about only retrieving ONE event
Date: Tue, 24 Oct 2017 18:56:42 +0000 [thread overview]
Message-ID: <20171024185642.341-1-e@80x24.org> (raw)
This had become such second nature to me that I forgot to
document it :x
---
doc/queues.txt | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/doc/queues.txt b/doc/queues.txt
index d1de9da..fe8c3bb 100644
--- a/doc/queues.txt
+++ b/doc/queues.txt
@@ -50,8 +50,9 @@ This is either an epoll(2) or kqueue(2) descriptor. Unlike traditional
poll(2)/select(2), epoll/kqueue easily allows clients to migrate between
threads as client sockets become ready.
-To implement queue-like behavior, we rely exclusively on one-shot
-notifications (EPOLLONESHOT or EV_ONESHOT).
+To implement this behavior, we rely exclusively on one-shot notifications
+(EPOLLONESHOT or EV_ONESHOT) and only retrieve one event at-a-time with
+epoll_wait or kqueue to avoid head-of-line blocking.
active queue
============
--
EW
reply other threads:[~2017-10-24 18:56 UTC|newest]
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