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| author | Alan Conway <aconway@apache.org> | 2011-07-25 13:12:19 +0000 |
|---|---|---|
| committer | Alan Conway <aconway@apache.org> | 2011-07-25 13:12:19 +0000 |
| commit | 2acf99898514e6c44c8817f2962a64258c6e301a (patch) | |
| tree | a93631adb5ae233b34b4d1d75bcfc1b53a0a2dc2 | |
| parent | 4bdcae965d344ca21210303b47d941e13a9a4e3c (diff) | |
| download | qpid-python-2acf99898514e6c44c8817f2962a64258c6e301a.tar.gz | |
QPID-2920: Sleep on cpg flow control to avoid thrashing.
Added a 1ms sleep when CPG is flow controlled. Huge thruput
improvement for qpid-cluster-benchmarks multi-host case.
git-svn-id: https://svn.apache.org/repos/asf/qpid/branches/qpid-2920@1150684 13f79535-47bb-0310-9956-ffa450edef68
| -rw-r--r-- | qpid/cpp/src/qpid/cluster/exp/Multicaster.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/qpid/cpp/src/qpid/cluster/exp/Multicaster.cpp b/qpid/cpp/src/qpid/cluster/exp/Multicaster.cpp index bdf6c33387..cf8703ca59 100644 --- a/qpid/cpp/src/qpid/cluster/exp/Multicaster.cpp +++ b/qpid/cpp/src/qpid/cluster/exp/Multicaster.cpp @@ -65,6 +65,7 @@ Multicaster::sendMcast(const PollableEventQueue::Batch& buffers) { std::transform(i, j, ioVector.begin(), &bufToIov); if (!cpg.mcast(&ioVector[0], len)) { // CPG didn't send because of CPG flow control. + ::usleep(1000); // Don't spin too tightly. return i; } i = j; |