NaN as a response for perfRunner.getStats('MessageLoop::RunTask')

[henriquelbsouza]

fit('load 500 items in less than 25 seconds', function() {
        element(by.model('some_element'))
        .all(by.tagName('option'))
        .get(2)
        .click();

        perfRunner.start();
        element(by.id('filter')).click();
        element.all(by.id('ready')).get(495).click();

        perfRunner.stop();

        if (perfRunner.isEnabled) {
            expect(perfRunner.getStats('MessageLoop::RunTask')).toBeLessThan(70000);
        }
    });

There is only one test that it is happening. If I run with the other tests, he passes with the same time the test before...

The tests are the same (exactly), only the quantity of return from backend changes.

Anyone have any idea on what could be happening? Or how can I do a deeper debug and find the problem? :)

Thanks