Hi Jake, Thanks for reporting the bug. If you can provide us with a test program where we can observe the slowdown, it becomes lot easier to fix. There were a lot of changes between 1.2.3 and 1.2.4 and so it's a little hard to find the problem. Also, we are planning to release 1.2.5 in the next few days and so I would be very happy to solve this issue and include the fixes in the new release.
Kapil PS: I noticed that you said 1.3/1.4, I assume you meant 1.2.3 and 1.2.4. On Thu, Apr 5, 2012 at 1:38 PM, Gamage, Jacob J <[email protected]> wrote: > Hello, > > > > We recently noticed an issue in our DMTCP environment. We found that our > test has a 10-15% speed drop when running with the dmtcp_checkpoint wrapper > while using DMTCP 1.4, yet we don’t see the same speed drop with DMTCP 1.3. > This is regardless of actually creating checkpoints – simply including the > wrapper seems to slow things down. > > > > Our test is a multi-threaded test, with frequent mutex exchanges. > > > > I’m not sure how difficult it would be to create an example of the problem > for you, so I wanted to start by asking if you can think of any changes > which may have caused the slowdown? Perhaps we can go through them in the > source here to see if we can get the speed back up. > > > > Thanks, > > Jake > > > ------------------------------------------------------------------------------ > Better than sec? Nothing is better than sec when it comes to > monitoring Big Data applications. Try Boundary one-second > resolution app monitoring today. Free. > http://p.sf.net/sfu/Boundary-dev2dev > _______________________________________________ > Dmtcp-forum mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/dmtcp-forum > ------------------------------------------------------------------------------ Better than sec? Nothing is better than sec when it comes to monitoring Big Data applications. Try Boundary one-second resolution app monitoring today. Free. http://p.sf.net/sfu/Boundary-dev2dev _______________________________________________ Dmtcp-forum mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/dmtcp-forum
