This is an automated email from the ASF dual-hosted git repository.
wkaras pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/trafficserver.git
The following commit(s) were added to refs/heads/master by this push:
new f278427 Add thread yeield to avoid busy waiting in
LogObject::_checkout_write(). (#7576)
f278427 is described below
commit f278427b1ecdc5ce9e758de51a7faf83bcc58643
Author: Walt Karas <[email protected]>
AuthorDate: Mon Mar 29 07:45:41 2021 -0500
Add thread yeield to avoid busy waiting in LogObject::_checkout_write().
(#7576)
---
proxy/logging/LogObject.cc | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/proxy/logging/LogObject.cc b/proxy/logging/LogObject.cc
index 9b8ec99..139dab7 100644
--- a/proxy/logging/LogObject.cc
+++ b/proxy/logging/LogObject.cc
@@ -39,6 +39,7 @@
#include <algorithm>
#include <vector>
+#include <thread>
static bool
should_roll_on_time(Log::RollingEnabledValues roll)
@@ -382,7 +383,9 @@ LogObject::_checkout_write(size_t *write_offset, size_t
bytes_needed)
break;
case LogBuffer::LB_RETRY:
- // no more room, but another thread should be taking care of creating a
new buffer, so try again
+ // no more room, but another thread should be taking care of creating a
new buffer, so yield to let
+ // the other thread finish, then try again
+ std::this_thread::yield();
break;
case LogBuffer::LB_BUFFER_TOO_SMALL:
