Created https://issues.apache.org/jira/browse/THRIFT-904
On Fri, Sep 17, 2010 at 12:16 PM, Michael Greene <michael.gre...@gmail.com> wrote: > This is the correct cause. Reproducing your test gives 38-45ms in each of > 10 runs. If you run a profiler against it, you can see that the time is > entirely spent blocking on receive in TStreamTransport.Read. > Your test can be modified with the following line: > coreTransport.TcpClient.NoDelay = true; > After disabling Nagle's each test runs in < 1ms. > Michael > On Fri, Sep 17, 2010 at 9:57 AM, Peter Schuller > <peter.schul...@infidyne.com> wrote: >> >> > The latency is about 200 ms on every request when I'm connected to >> > another >> >> My first thought here was that maybe you're seeing the effects of >> nagle[1] + delayed acks on the other side. On Unix, normally something >> like a thrift client would set TCP_NODELAY on its socket to avoid the >> problem. I'm not sure whether or not this is a reasonable hypothesis >> with C# + Thrift on Windows. Sorry, I don't know what the easy fix is >> either but perhaps it might help dig further. >> >> [1] http://en.wikipedia.org/wiki/Nagle's_algorithm >> >> -- >> / Peter Schuller > > -- Jonathan Ellis Project Chair, Apache Cassandra co-founder of Riptano, the source for professional Cassandra support http://riptano.com
