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* [PATCH] doc/queues.txt: add key point about only retrieving ONE event
@ 2017-10-24 18:56 Eric Wong
  0 siblings, 0 replies; only message in thread
From: Eric Wong @ 2017-10-24 18:56 UTC (permalink / raw)
  To: cmogstored-public

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

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2017-10-24 18:56 [PATCH] doc/queues.txt: add key point about only retrieving ONE event Eric Wong

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