Re: [Cobertura-devel] Cobertura Limits

[John W. L. <Joh...@sa...>]

It may be that you are just experimenting, but typically, you use the cobertura.ser file that is produced during instrumentation.   I would not expect it to get bigger.

I know of a test project that has a cobertura.ser file that is 4.75MB.   So, I would not expect 2MB to be a problem.

Piotr's branch will very likely be merged into the trunk, so I would not hesitate to try it.

John


From: Steven Christou [mailto:ste...@re...]
Sent: Friday, January 21, 2011 4:13 PM
To: Piotr Tabor
Cc: John W. Lewis; cob...@li...
Subject: Re: [Cobertura-devel] Cobertura Limits

I am currently using trunk,  I have yet to try your changes.
The failure is occurring during 'business', I also notice it is doing flushes correctly, and it's producing results. The cobertura.ser file gets to about 2mb before the crash occurs. I am flushing after every test with the assumption garbage collection will clean up everything, and garbage collection will shrink the array size. I want to refrain from doing explicit GC calls unless absolutely necessary.

On 1/21/2011 2:49 PM, Piotr Tabor wrote:
Steven,

Do you have problems with both branches, or only with trunk.
AFAIK the running size of instrumented code in my branch does not grow in time ?
Are your code going out of memory during 'business' run or during flush ?

Piotr
On Fri, Jan 21, 2011 at 5:29 PM, Steven Christou <ste...@re...<mailto:ste...@re...>> wrote:
We changed our code recently to include the ability to flush cobertura
data in our JVM at any point using the suggested code in the FAQ page.
Is this going to help remove this memory limit? We set our heap space to
-Xmx1400m which I believe is really high, and it did not solve the issue
with memory.


On 1/11/2011 5:07 PM, John W. Lewis wrote:
> There is a memory limit.   All of the line and conditional counts are kept in memory till the JVM is shut down and they are flushed to disk.
>
> So, as more instrumented code is executed in the test process, the more memory is used by the test process.
>
> Then, when the shutdown occurs, the cobertura.ser file is loaded into memory, and the in-memory counts are merged before being written to the disk again.
>
> John
>
>
> -----Original Message-----
> From: Steven Christou [mailto:ste...@re...<mailto:ste...@re...>]
> Sent: Tuesday, January 11, 2011 5:48 PM
> To: 'cob...@li...<mailto:cob...@li...>'
> Subject: [Cobertura-devel] Cobertura Limits
>
> I was wondering if cobertura had any kind of limits. I ran into an issue where I believe something was happening and the server was starting to crash. The JVM never shut down, but at the same time, when running fitnesse tests, I was getting nothing but failures. I could run all my tests uninstrumented, and they would all pass. This happens after I run several hundred tests though, so I'm assuming I must be hitting a limit.
>
> I tried running with Piotr's changes, but I am running into an issue where the tests do not even run.
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Piotr Tabor

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