Keyspace 1.4.1

by Marton Trencseni on 2010/02/17

We are releasing Keyspace 1.4.1, a bugfix release, mostly fixing TCP speed issues we were having. It turns out our client protocol was "interfering" with Nagle's algorithm and causing performance problems on some platforms. Also, under Windows we ran into a Windows bug, where if you filled up the socket buffers Windows would use delayed ACKs, which again caused performance issues.

Download 1.4.1 here.

Here are some performance numbers from a n=3 node Keyspace setup on Windows over a 100Mbit LAN:

VALUE LENGTH = 100 bytes long
batch set: 30487 tx/sec
single set: 1777 tx/sec
batch get: 45662 tx/sec
single get: 6734 tx/sec

VALUE LENGTH = 1000 bytes long
batch set: 2443 tx/sec
single set: 845 tx/sec
batch get: 8888 tx/sec
single get: 3137 tx/sec