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http://jira.jboss.com/jira/browse/JGRP-267?page=comments#action_12340640 ]
Bela Ban commented on JGRP-267:
-------------------------------
when we instrument the channel.send() method so see how long a send() takes, we get the
results below. Most of the time, send() takes almost no time, but sometimes it takes 15ms
!
Need to investigate (e.g. with PERF) to see where that time is spent !
$ jt RoundTrip -props ./tmp.xml -num 10
-------------------------------------------------------
GMS: address is 192.168.5.2:2560
-------------------------------------------------------
sending 10 requests
[JChannel] send took 0ms
- received 1
[JChannel] send took 0ms
- received 2
[JChannel] send took 0ms
- received 3
[JChannel] send took 0ms
- received 4
[JChannel] send took 16ms
- received 5
[JChannel] send took 0ms
- received 6
[JChannel] send took 15ms
- received 7
[JChannel] send took 0ms
- received 8
[JChannel] send took 0ms
- received 9
[JChannel] send took 0ms
- received 10
Took 3156ms for 10 requests: 3.168567807351077 requests/sec, 315.6 ms/request
RoundTrip is slow with bundling disabled
----------------------------------------
Key: JGRP-267
URL:
http://jira.jboss.com/jira/browse/JGRP-267
Project: JGroups
Issue Type: Bug
Affects Versions: 2.3 SP1
Reporter: Bela Ban
Assigned To: Bela Ban
Fix For: 2.4
#1 Disable bundling in fc-fast-minimalthreads.xml: UDP.enable_bundling="false"
#2 Run the server: jt RoundTrip -server -props ./fc-fast-minimalthreads.xml
#3 Run the client: $ jt RoundTrip -props ./fc-fast-minimalthreads.xml -num 10
The first time, the client runs okay, but when it is run multiple times, it always slows
down halfway through a run
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