This does not seem to be a good way to fix tests:
Also when writing Performance tests - make sure to time the right thing. For example measuring log.Write may give very varying time durations, measure as little block as possible, so instead of:
... DateTime startTime = DateTime.Now; regularGridCoverage.Resize(10000, 10000, 1, 1); log.DebugFormat("Writing 100000000 values took {0} ms", (DateTime.Now - startTime).TotalMilliseconds); Assert.Less((DateTime.Now - startTime).TotalMilliseconds, 25000); ...
Write:
... var startTime = DateTime.Now; regularGridCoverage.Resize(10000, 10000, 1, 1); var duration = (DateTime.Now - startTime).TotalMilliseconds; log.DebugFormat("Writing 100000000 values took {0} ms", duration); Assert.Less(duration, 25000); ...
Or:
... var stopwatch = new Stopwatch(); stopwatch.Start(); regularGridCoverage.Resize(10000, 10000, 1, 1); stopwatch.Stop(); log.DebugFormat("Writing 100000000 values took {0} ms", stopwatch.Elapsed.TotalMilliseconds); Assert.Less(stopwatch.Elapsed.TotalMilliseconds, 25000); ...
Also make sure that message is written showing how log it took to do something, otherwise it is hard to check how long it takes on build server.