Taking Snapshot Locks Up Application

7 posts, 0 answers
  1. Ristogod
    Ristogod avatar
    63 posts
    Member since:
    Aug 2008

    Posted 13 Feb 2013 Link to this post

    Anyone else having the issue where when you take a snapshot, the application you are profiling becomes unresponsive after the snapshot is complete?

    We are trying to investigate a memory leak and cannot compare snapshots because we can never get more than a single snapshot. After the first the application cannot be interacted with.
  2. Martin
    Admin
    Martin avatar
    29 posts

    Posted 13 Feb 2013 Link to this post

    Hello Nathan,

    Thank you for contacting us. I am sorry for the problem you are experiencing with JustTrace. I noticed that you are not using the latest version of JustTrace. After the Q3 SP1 was released we fixed an issue which in some cases crashed the profiled process when getting a memory snapshot. I think that you may be facing this bug.

    I suggest that you upgrade to the latest internal build and retry profiling your application with it. To upgrade please go to the "Help & Support" page and press the "Check for Updates" button.

    All the best,
    Martin
    the Telerik team
    Share what you think about JustTrace & JustMock with us, so we can become even better! You can use the built-in feedback tool inside JustTrace, our forums, or our JustTrace or JustMock portals.
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  4. Ristogod
    Ristogod avatar
    63 posts
    Member since:
    Aug 2008

    Posted 13 Feb 2013 Link to this post

    Thanks. I updated to the latest internal build.

    So far I am unable to determine if the issue is fixed as the performance overall has reduced dramatically. A running process prior would take around 1-2 minutes with JustTrace profiling it. Now with the latest version, it is taking 1-2 hours.

    So I'm not sure how useful it's going to be as it will most likely take me days to figure out what's going on.

  5. Ristogod
    Ristogod avatar
    63 posts
    Member since:
    Aug 2008

    Posted 13 Feb 2013 Link to this post

    I said 1-2 hours prior. But in reality that was just a guess. I went to lunch and came back and it's still running. So it's likely more along the lines of 3-4 hours or more for something that runs in 1-2 minutes when JustTrace isn't profiling it.

    So this version is just as broke as the other version. I'll have to look for alternative methods to help isolate where my memory leak is coming from. I really hope you guys can sort this out though and make your product useful again.
  6. Todor
    Admin
    Todor avatar
    63 posts

    Posted 14 Feb 2013 Link to this post

    Hi Nathan,

    We routinely test JustTrace against different workloads and profile targets and this behavior is unexpected. We need more data to resolve the issue. Is it possible to send us the the project (the binaries should be enough) so we can test against it? Another options is to send us a memory dump of the profiled process while it is working. We may also arrange an on-line meeting to debug the problem on your machine, if this is convenient for you.

    In all cases, I suggest you to turn off the "Collect Call Stacks' option to speeds up the memory profiler while collecting enough information to solve large classes of memory leak. Also, running on a physical machine (and not inside a virtual one) also speeds up the profiling.

    Kind regards,
    Todor
    the Telerik team
    Share what you think about JustTrace & JustMock with us, so we can become even better! You can use the built-in feedback tool inside JustTrace, our forums, or our JustTrace or JustMock portals.
  7. Ristogod
    Ristogod avatar
    63 posts
    Member since:
    Aug 2008

    Posted 01 Mar 2013 Link to this post

    I'm sorry I wasn't able to take the time to work with you in resolving any prior issues with JustTrace. I simply didn't have the time to deal with it directly.

    However, I recently updated to your latest release and it went from being a 100% unusable product, to a completely usable product. I can now profile my application and it barely takes any more time to run while profiling than it does to run with JustTrace off. Not only that, but the snapshots button is now working correctly and it no longer locks up anything.

    So I commend your efforts and thank you for resolving the issues.
  8. Todor
    Admin
    Todor avatar
    63 posts

    Posted 04 Mar 2013 Link to this post

    Hi Nathan,

    Thank you for the kind words and happy profiling!

    All the best,
    Todor
    the Telerik team
    Share what you think about JustTrace & JustMock with us, so we can become even better! You can use the built-in feedback tool inside JustTrace, our forums, or our JustTrace or JustMock portals.
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