Gordon Sim wrote:
ffrenchm wrote:
Hello,
first of all I would like to thanks everybody who help me to achieve my
benches with QPID C++.
I almost finished them and I plan to put in this mailing list my benches
results (QPID C++ vs ActiveMQ done with JMS API) during the WE.
Anyway I've another question for you :) There is a point in the QPIDC++
which I think is strange. You have to know first that I've to kind of
benches : local benches where client and server are in the same
machine and
remote benches where client is on machine A and server is on machine
B. I'm
always using a TCP connection. The point I think is strange is the
BIG gap
between local and remote benches on QPID C++ I have (with ActiveMQ I
have a
gap to but it's not so big)... For example when sending 100000 1024
bytes
messages (non persistent) I've these results :
QPID C++ --------------
local send : 19328,39 msg/s
remote send : 5677.26 msg/s
local receive : 19867,55 msg/s
remote receive : 5637.17 msg/s
ActiveMQ
------------
local send : 12359,55 msg/s
remote send : 7916.83 msg/s
local receive : 12359,55 msg/s
remote receive : 7962.68 msg/s
As you can see my results are better with ActiveMQ when I use remote
client
than with QPID C++ and that's why I think it's strange because for my
local
benches QPID C++ is really the best !
Do you already notice this kind of big differences ? Do you have any
ideas
from where is coming the slowing down for this kind of remote use ?
Did I
miss some tune parameters or is this an issue we should work on QPID
C++ ?
I came across one issue with nvidia ethernet cards that had similar
symptoms (may not be the same as this of course). The dmesg output
contained: "eth0: too many iterations (6) in nv_nic_irq." or similar.
Do the numbers change if you use much smaller messages?
The numbers seem low. for example I just did a comparison run on my
notebook for on trunk
1k messages with C++, localhost ~90 k/second
Java low level API is about 51k msg/second
As the JMS should be in the 40k/sec + on single connection non-server.
any additional info you have that might point to something?
Carl.
---------------------------------------------------------------------
Apache Qpid - AMQP Messaging Implementation
Project: http://qpid.apache.org
Use/Interact: mailto:[email protected]
