[Matplotlib-users] matplotlib.backends.backend_gtk3cairo memory leak
Hi, I seem to have a memory leak while generating a 'live' plot display. This wasn't the case for GTK2, but the example below is consuming ~800k/second (Matplotlib 1.4.3, PyGI aio-3.14.0_rev18, Windows 7 x64, python 3.4.3). I have checked the garbage collector but it doesn't show anything interesting (no massive incrementing count of uncollected items). Anyway, I would be very grateful if somebody could confirm and/or fix this (or tell me what I'm doing wrong).Many thanksDavidCode below: from gi.repository import Gtk, Gdk, GLibfrom matplotlib.figure import Figure# Tell matplotlib to use a GTK canvas for drawing#from matplotlib.backends.backend_gtk3agg import FigureCanvasGTK3Agg as FigureCanvasfrom matplotlib.backends.backend_gtk3cairo import FigureCanvasGTK3Cairo as FigureCanvas# Application Classclass pyMatPlotLibTest(object):def update_gui(self):y = [self.index] * 1024self.index += 1if self.index 1024: self.index = 0 Gdk.threads_enter()self.line.set_ydata(y) self.axes.set_title(%d % self.index)self.canvas.draw() Gdk.threads_leave()return Truedef __init__(self): self.index = 0self.x = range(1024)# Initialise the threads system and allow threads to work with GTKGLib.threads_init() # Draw scopeself.figure = Figure(dpi=100)self.canvas = FigureCanvas(self.figure) # a Gtk.DrawingArea #self.widget.alignment_ScopeDisplay.add(self.canvas)# Draw initial scopeself.axes = self.figure.add_subplot(111)self.line, = self.axes.plot(self.x, [0]* 1024)self.axes.set_title(None) self.axes.set_xbound(0.0, 1024)self.axes.set_ybound(-16, 1040) self.window_main = Gtk.Window(title=pyMatPlotLibTest) self.window_main.connect(destroy, lambda x: Gtk.main_quit()) self.window_main.add(self.canvas)self.window_main.show_all() # Ticker for the update of the input state monitoring Gdk.threads_add_timeout(priority = GLib.PRIORITY_DEFAULT_IDLE, interval = 10, # msecfunction = self.update_gui)Gtk.main()if __name__ == __main__:gui = pyMatPlotLibTest() -- View this message in context: http://matplotlib.1069221.n5.nabble.com/matplotlib-backends-backend-gtk3cairo-memory-leak-tp45614.html Sent from the matplotlib - users mailing list archive at Nabble.com.-- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] matplotlib.backends.backend_gtk3cairo memory leak
I removed all calls to threads and swapped Gdk.threads_add_timeout to Glib.timeout_add (See attached. However if I comment the call to self.canvas.draw(), the python memory utilisation sits at 30.8Mb. from gi.repository import Gtk, Gdk, GLib from matplotlib.figure import Figure # Tell matplotlib to use a GTK canvas for drawing #from matplotlib.backends.backend_gtk3agg import FigureCanvasGTK3Agg as FigureCanvas from matplotlib.backends.backend_gtk3cairo import FigureCanvasGTK3Cairo as FigureCanvas # Application Class class pyMatPlotLibTest(object): def update_gui(self): y = [self.index] * 1024 self.index += 1 if self.index 1024: self.index = 0 #Gdk.threads_enter() self.line.set_ydata(y) self.axes.set_title(%d % self.index) self.canvas.draw() #Gdk.threads_leave() return True def __init__(self): self.index = 0 self.x = range(1024) # Initialise the threads system and allow threads to work with GTK #GLib.threads_init() # Draw scope self.figure = Figure(dpi=100) self.canvas = FigureCanvas(self.figure) # a Gtk.DrawingArea #self.widget.alignment_ScopeDisplay.add(self.canvas) # Draw initial scope self.axes = self.figure.add_subplot(111) self.line, = self.axes.plot(self.x, [0]* 1024) self.axes.set_title(None) self.axes.set_xbound(0.0, 1024) self.axes.set_ybound(-16, 1040) self.window_main = Gtk.Window(title=pyMatPlotLibTest) self.window_main.connect(destroy, lambda x: Gtk.main_quit()) self.window_main.add(self.canvas) self.window_main.show_all() # Ticker for the update of the input state monitoring GLib.timeout_add(10, self.update_gui) #Gdk.threads_add_timeout(priority = GLib.PRIORITY_DEFAULT_IDLE, #interval = 10, # msec #function = self.update_gui) Gtk.main() if __name__ == __main__: gui = pyMatPlotLibTest() From: ben.v.r...@gmail.com [mailto:ben.v.r...@gmail.com] On Behalf Of Benjamin Root Sent: 26 May 2015 14:53 To: David Hughes Cc: Matplotlib Users Subject: Re: [Matplotlib-users] matplotlib.backends.backend_gtk3cairo memory leak I take it that it doesn't happen using the GTK3Agg backend? What about the threading portion? Does it happen if you take the threading out? Ben Root On Tue, May 26, 2015 at 8:23 AM, David dhug...@rapiscansystems.commailto:dhug...@rapiscansystems.com wrote: Hi, I seem to have a memory leak while generating a 'live' plot display. This wasn't the case for GTK2, but the example below is consuming ~800k/second (Matplotlib 1.4.3, PyGI aio-3.14.0_rev18, Windows 7 x64, python 3.4.3). I have checked the garbage collector but it doesn't show anything interesting (no massive incrementing count of uncollected items). Anyway, I would be very grateful if somebody could confirm and/or fix this (or tell me what I'm doing wrong). Many thanks David Code below: from gi.repository import Gtk, Gdk, GLib from matplotlib.figure import Figure # Tell matplotlib to use a GTK canvas for drawing #from matplotlib.backends.backend_gtk3agg import FigureCanvasGTK3Agg as FigureCanvas from matplotlib.backends.backend_gtk3cairo import FigureCanvasGTK3Cairo as FigureCanvas # Application Class class pyMatPlotLibTest(object): def update_gui(self): y = [self.index] * 1024 self.index += 1 if self.index 1024: self.index = 0 Gdk.threads_enter() self.line.set_ydata(y) self.axes.set_title(%d % self.index) self.canvas.draw() Gdk.threads_leave() return True def __init__(self): self.index = 0 self.x = range(1024) # Initialise the threads system and allow threads to work with GTK GLib.threads_init() # Draw scope self.figure = Figure(dpi=100) self.canvas = FigureCanvas(self.figure) # a Gtk.DrawingArea #self.widget.alignment_ScopeDisplay.add(self.canvas) # Draw initial scope self.axes = self.figure.add_subplot(111) self.line, = self.axes.plot(self.x, [0]* 1024) self.axes.set_title(None) self.axes.set_xbound(0.0, 1024) self.axes.set_ybound(-16, 1040) self.window_main = Gtk.Window(title=pyMatPlotLibTest) self.window_main.connect(destroy, lambda x: Gtk.main_quit()) self.window_main.add(self.canvas) self.window_main.show_all() # Ticker for the update of the input state monitoring Gdk.threads_add_timeout(priority = GLib.PRIORITY_DEFAULT_IDLE, interval = 10, # msec function = self.update_gui) Gtk.main() if __name__ == __main__: gui = pyMatPlotLibTest() View
Re: [Matplotlib-users] matplotlib.backends.backend_gtk3cairo memory leak
I take it that it doesn't happen using the GTK3Agg backend? GTK3Agg is unimplemented at the GTK3-end: File c:\Python34\lib\site-packages\matplotlib\backends\backend_gtk3agg.py, line 69, in on_draw_event buf, cairo.FORMAT_ARGB32, width, height) NotImplementedError: Surface.create_for_data: Not Implemented yet. What about the threading portion? Does it happen if you take the threading out? I removed all calls to threads and swapped Gdk.threads_add_timeout to Glib.timeout_add. This made little difference. However if I comment the call to self.canvas.draw(), the python memory utilisation sits at 30.8Mb (but the graph does not update of course). Thanks David -- View this message in context: http://matplotlib.1069221.n5.nabble.com/matplotlib-backends-backend-gtk3cairo-memory-leak-tp45614p45616.html Sent from the matplotlib - users mailing list archive at Nabble.com. -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] matplotlib.backends.backend_gtk3cairo memory leak
Thanks, however GTK3Agg is unimplemented in at the GTK3-end: File c:\Python34\lib\site-packages\matplotlib\backends\backend_gtk3agg.py, line 69, in on_draw_event buf, cairo.FORMAT_ARGB32, width, height) NotImplementedError: Surface.create_for_data: Not Implemented yet. Regards David From: ben.v.r...@gmail.com [mailto:ben.v.r...@gmail.com] On Behalf Of Benjamin Root Sent: 26 May 2015 14:53 To: David Hughes Cc: Matplotlib Users Subject: Re: [Matplotlib-users] matplotlib.backends.backend_gtk3cairo memory leak I take it that it doesn't happen using the GTK3Agg backend? What about the threading portion? Does it happen if you take the threading out? Ben Root On Tue, May 26, 2015 at 8:23 AM, David dhug...@rapiscansystems.commailto:dhug...@rapiscansystems.com wrote: Hi, I seem to have a memory leak while generating a 'live' plot display. This wasn't the case for GTK2, but the example below is consuming ~800k/second (Matplotlib 1.4.3, PyGI aio-3.14.0_rev18, Windows 7 x64, python 3.4.3). I have checked the garbage collector but it doesn't show anything interesting (no massive incrementing count of uncollected items). Anyway, I would be very grateful if somebody could confirm and/or fix this (or tell me what I'm doing wrong). Many thanks David Code below: from gi.repository import Gtk, Gdk, GLib from matplotlib.figure import Figure # Tell matplotlib to use a GTK canvas for drawing #from matplotlib.backends.backend_gtk3agg import FigureCanvasGTK3Agg as FigureCanvas from matplotlib.backends.backend_gtk3cairo import FigureCanvasGTK3Cairo as FigureCanvas # Application Class class pyMatPlotLibTest(object): def update_gui(self): y = [self.index] * 1024 self.index += 1 if self.index 1024: self.index = 0 Gdk.threads_enter() self.line.set_ydata(y) self.axes.set_title(%d % self.index) self.canvas.draw() Gdk.threads_leave() return True def __init__(self): self.index = 0 self.x = range(1024) # Initialise the threads system and allow threads to work with GTK GLib.threads_init() # Draw scope self.figure = Figure(dpi=100) self.canvas = FigureCanvas(self.figure) # a Gtk.DrawingArea #self.widget.alignment_ScopeDisplay.add(self.canvas) # Draw initial scope self.axes = self.figure.add_subplot(111) self.line, = self.axes.plot(self.x, [0]* 1024) self.axes.set_title(None) self.axes.set_xbound(0.0, 1024) self.axes.set_ybound(-16, 1040) self.window_main = Gtk.Window(title=pyMatPlotLibTest) self.window_main.connect(destroy, lambda x: Gtk.main_quit()) self.window_main.add(self.canvas) self.window_main.show_all() # Ticker for the update of the input state monitoring Gdk.threads_add_timeout(priority = GLib.PRIORITY_DEFAULT_IDLE, interval = 10, # msec function = self.update_gui) Gtk.main() if __name__ == __main__: gui = pyMatPlotLibTest() View this message in context: matplotlib.backends.backend_gtk3cairo memory leakhttp://matplotlib.1069221.n5.nabble.com/matplotlib-backends-backend-gtk3cairo-memory-leak-tp45614.html Sent from the matplotlib - users mailing list archivehttp://matplotlib.1069221.n5.nabble.com/matplotlib-users-f3.html at Nabble.com. -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.netmailto:Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] matplotlib.backends.backend_gtk3cairo memory leak
I take it that it doesn't happen using the GTK3Agg backend? What about the threading portion? Does it happen if you take the threading out? Ben Root On Tue, May 26, 2015 at 8:23 AM, David dhug...@rapiscansystems.com wrote: Hi, I seem to have a memory leak while generating a 'live' plot display. This wasn't the case for GTK2, but the example below is consuming ~800k/second (Matplotlib 1.4.3, PyGI aio-3.14.0_rev18, Windows 7 x64, python 3.4.3). I have checked the garbage collector but it doesn't show anything interesting (no massive incrementing count of uncollected items). Anyway, I would be very grateful if somebody could confirm and/or fix this (or tell me what I'm doing wrong). Many thanks David Code below: from gi.repository import Gtk, Gdk, GLib from matplotlib.figure import Figure # Tell matplotlib to use a GTK canvas for drawing #from matplotlib.backends.backend_gtk3agg import FigureCanvasGTK3Agg as FigureCanvas from matplotlib.backends.backend_gtk3cairo import FigureCanvasGTK3Cairo as FigureCanvas # Application Class class pyMatPlotLibTest(object): def update_gui(self): y = [self.index] * 1024 self.index += 1 if self.index 1024: self.index = 0 Gdk.threads_enter() self.line.set_ydata(y) self.axes.set_title(%d % self.index) self.canvas.draw() Gdk.threads_leave() return True def __init__(self): self.index = 0 self.x = range(1024) # Initialise the threads system and allow threads to work with GTK GLib.threads_init() # Draw scope self.figure = Figure(dpi=100) self.canvas = FigureCanvas(self.figure) # a Gtk.DrawingArea #self.widget.alignment_ScopeDisplay.add(self.canvas) # Draw initial scope self.axes = self.figure.add_subplot(111) self.line, = self.axes.plot(self.x, [0]* 1024) self.axes.set_title(None) self.axes.set_xbound(0.0, 1024) self.axes.set_ybound(-16, 1040) self.window_main = Gtk.Window(title=pyMatPlotLibTest) self.window_main.connect(destroy, lambda x: Gtk.main_quit()) self.window_main.add(self.canvas) self.window_main.show_all() # Ticker for the update of the input state monitoring Gdk.threads_add_timeout(priority = GLib.PRIORITY_DEFAULT_IDLE, interval = 10, # msec function = self.update_gui) Gtk.main() if __name__ == __main__: gui = pyMatPlotLibTest() -- View this message in context: matplotlib.backends.backend_gtk3cairo memory leak http://matplotlib.1069221.n5.nabble.com/matplotlib-backends-backend-gtk3cairo-memory-leak-tp45614.html Sent from the matplotlib - users mailing list archive http://matplotlib.1069221.n5.nabble.com/matplotlib-users-f3.html at Nabble.com. -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] matplotlib.backends.backend_gtk3cairo memory leak
IGtk3Agg should work in you use cairocffi instead of py(2/3)cairo. AFAIK py(2/3)cairo is more or less unmaintained these days and that function has never been implemented in a released version. Best Jens tir. 26. maj 2015 kl. 16.27 skrev David dhug...@rapiscansystems.com: I take it that it doesn't happen using the GTK3Agg backend? GTK3Agg is unimplemented at the GTK3-end: File c:\Python34\lib\site-packages\matplotlib\backends\backend_gtk3agg.py, line 69, in on_draw_event buf, cairo.FORMAT_ARGB32, width, height) NotImplementedError: Surface.create_for_data: Not Implemented yet. What about the threading portion? Does it happen if you take the threading out? I removed all calls to threads and swapped Gdk.threads_add_timeout to Glib.timeout_add. This made little difference. However if I comment the call to self.canvas.draw(), the python memory utilisation sits at 30.8Mb (but the graph does not update of course). Thanks David -- View this message in context: http://matplotlib.1069221.n5.nabble.com/matplotlib-backends-backend-gtk3cairo-memory-leak-tp45614p45616.html Sent from the matplotlib - users mailing list archive at Nabble.com. -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
