10 is an awfully small value; in my experience (I had a default of 100 
for my JGroups perf tests), this made the tests longer than with the 
default (which is 10000 IIRC) !


On 1/27/12 12:20 PM, Sanne Grinovero wrote:
> On 27 January 2012 11:07, Mircea Markus<mircea.mar...@jboss.com>  wrote:
>>
>> On 26 Jan 2012, at 23:04, Sanne Grinovero wrote:
>>
>>> Very nice!
>>> All my previous tests also confirm that there is a correlation between PUT 
>>> and GET performance, when one increases the other goes down.
>>>
>>> These PUT operations are doing a GET as well, correct? I'd love to see such 
>>> graphs using SKIP_REMOTE_LOOKUP.
>> it is configured with unsafe return values. With safe return, the values 
>> might get even better...
>>> How long are you warming up the VM? As mentioned in the other thread, I've 
>>> discovered that even under high load it will take more than 15 minutes 
>>> before all of Infinispan's code is running in compiled mode.
>> The warmup is 100k operations, doesn't seem too much.
>
> I'm now experimenting with -XX:CompileThreshold=10 , and it's fairly
> warmed up only after 100k Write operations and a million read
> operations. And that's all in the same VM!
>
> Maybe you could try RadarGun making sure that each VM runs at least a
> million operations in the warmup phase? Maybe it doesn't matter at
> all, but I'd measure rather than guess it.
> Also your test is different than mine; maybe a better strategy is to
> figure out what's your correct warmup by looking at the output of
> -XX:+PrintCompilation, and see how long it takes before it's
> relatively quiet.

-- 
Bela Ban
Lead JGroups (http://www.jgroups.org)
JBoss / Red Hat
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