Inserting CallgrindProfile to the control flow

One possible solution is like this

from PyConf.Algorithms import CallgrindProfile
def callgrind_profile(start=5, stop=115):
    p = CallgrindProfile(StartFromEventN = start, 
        StopAtEventN = stop,
        DumpAtEventN = stop,
        DumpName = 'CALLGRIND-OUT')
    return p
def standalone_hlt2_full_track_reco(profiling=True):
    hlt2_tracks = hlt2_tracking.make_hlt2_tracks()
    best_tracks = hlt2_tracks["Best"]
    pvs = hlt1_tracking.make_pvs()
    nodes = [hlt1_tracking.require_gec()] + [best_tracks["v1"], pvs]
    if profiling:
        nodes += [callgrind_profile()]
    return CompositeNode(
        'lazy_and',
        children=nodes,        combineLogic=NodeLogic.LAZY_AND,
        forceOrder=True)

It would be nice to have

• this as an option in the app
• updated documentation on this here