Re: [infinispan-dev] State transfer performance
Hi,
yes, we did this kind of tests for ispn 5.1 releases. There was pretty easy to analyze the
join time parsing the logs for debug messages from CacheViewsManagerImpl, one such example
is
https://jenkins.mw.lab.eng.bos.redhat.com/hudson/job/jdg-60-radargun-elas...
However, currently there is no such obvious start/end: I have created a log parser
isolating some info (note that this is from two consecutive runs in radargun with two
configurations)
https://jenkins.mw.lab.eng.bos.redhat.com/hudson/job/ispn-52-radargun-res...
It is not as nice, but still better than the logs itself.
Therefore, if we should benchmark some interval, we have to exactly state which events
should be the start and end. Could you suggest anything?
We should also define the type of load. Should be the load random, or should we let each
client query for one key and check when it is able to acquire the key and when we have to
wait for long (because the segment with this key is transferred)?
Radim
----- Original Message -----
| From: "Mircea Markus" <mircea.markus(a)jboss.com>
| To: "infinispan" <infinispan-dev(a)lists.jboss.org>, "Martin
Gencur" <mgencur(a)redhat.com>
| Sent: Friday, October 12, 2012 1:16:04 PM
| Subject: [infinispan-dev] State transfer performance
|
|
|
|
| Hi ,
|
| One of the targets of NBST is to minimise the downturn in throughput
| during topology changes. And now that NBST is getting there, I think
| that a test to measure how long does it take to a node to join,
| under different levels of cluster load, is very desirable in order
| to see where we are and also to help us profile and improve the
| state transfer performance.
| Martin, are we doing this kind of performance testing? It would be
| nice to have it integrated in Radargun or something similar in order
| to be able to quickly run it.
|
|
|
|
|
| Cheers,
| --
| Mircea Markus
| Infinispan lead ( www.infinispan.org )
|
|
|
|
|
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