Not able to plot the graph from "./mplot run" about memory_profiler

[fabianp]

as a workaround you could try the option --output=file.png so save to file instead of displaying, as in

./mprof plot --output=plot.png

[fabianp]

Hi,

once the command mprof run --pythonhas finished, you need to run mprof plot to see the result.

Does that work ?

[kumarvikas2605]

Their was some issue in the f*.dat file.
I tried fresh(./mprof plot) and I was able to see this:
mprofile: {'cmd_line': 'python mprof_script\n', 'timestamp': [1424853646.7537, 1424853646.8541, 1424853646.9544001, 1424853647.0548, 1424853647.1551001, 1424853647.2553999, 1424853647.3557999, 1424853647.4561, 1424853647.5565, 1424853647.6568, 1424853647.7572, 1424853647.8576, 1424853647.9579999, 1424853648.0583999, 1424853648.1587, 1424853648.2591], 'func_timestamp': {}, 'mem_usage': [0.99218799999999996, 6.515625, 8.8203119999999995, 8.8203119999999995, 8.8203119999999995, 8.8203119999999995, 8.8203119999999995, 8.8203119999999995, 8.8203119999999995, 8.8203119999999995, 8.8203119999999995, 8.8203119999999995, 8.8203119999999995, 8.8203119999999995, 8.8203119999999995, 8.8203119999999995], 'filename': 'mprofile_20150225004046.dat'}

But is this the expected o/p?
I though it should also include some graph?

[fabianp]

The graph is created from the *.dat file once you execute the command ./mprof plot. What is the output of this command ?

[kumarvikas2605]

vikas@host$ ./mprof plot
mprofile: {'cmd_line': 'python mprof_script\n', 'timestamp': [1424855029.7542, 1424855029.8546, 1424855029.9549, 1424855030.0552001, 1424855030.1556001, 1424855030.2558999, 1424855030.3562, 1424855030.4566, 1424855030.5569999, 1424855030.6573999, 1424855030.7578001], 'func_timestamp': {}, 'mem_usage': [1.316406, 8.1171880000000005, 8.8203119999999995, 8.8203119999999995, 8.8203119999999995, 8.8203119999999995, 8.8203119999999995, 8.8203119999999995, 8.8203119999999995, 8.8203119999999995, 8.8242189999999994], 'filename': 'mprofile_20150225010349.dat'}

[kumarvikas2605]

I take back my previous comment... it is not plotting anything when I run ./mprof plot.... no output at all.

The above output of ./mprof plot has come because I have printed the "mprofile" in the method:plot_file() of mprof:
def plot_file(filename, index=0, timestamps=True):
try:
import pylab as pl
except ImportError:
print("matplotlib is needed for plotting.")
sys.exit(1)
import numpy as np # pylab requires numpy anyway
mprofile = read_mprofile_file(filename)
print 'mprofile: %s' % mprofile

So it seems to be a valid bug.

[fabianp]

Indeed, it looks like a bug. Thanks for the report. I'll look into it ASAP

[kumarvikas2605]

One more observation. When I run "./mprof plot" on my local terminal I get the graph plotted.
But when I run the same command on a remote server I get: "RuntimeError: could not open display"

(process:13349): Gtk-WARNING **: Locale not supported by C library.
Using the fallback 'C' locale.
Traceback (most recent call last):
File "./mprof", line 472, in
actionsget_action()
File "./mprof", line 391, in plot_action
import pylab as pl
File "/usr/lib64/python2.6/site-packages/pylab.py", line 1, in
from matplotlib.pylab import *
File "/usr/lib64/python2.6/site-packages/matplotlib/pylab.py", line 247, in
from matplotlib.pyplot import *
File "/usr/lib64/python2.6/site-packages/matplotlib/pyplot.py", line 78, in
new_figure_manager, draw_if_interactive, show = pylab_setup()
File "/usr/lib64/python2.6/site-packages/matplotlib/backends/init.py", line 25, in pylab_setup
globals(),locals(),[backend_name])
File "/usr/lib64/python2.6/site-packages/matplotlib/backends/backend_gtkagg.py", line 10, in
from matplotlib.backends.backend_gtk import gtk, FigureManagerGTK, FigureCanvasGTK,
File "/usr/lib64/python2.6/site-packages/matplotlib/backends/backend_gtk.py", line 8, in
import gtk; gdk = gtk.gdk
File "/usr/lib64/python2.6/site-packages/gtk-2.0/gtk/init.py", line 64, in
_init()
File "/usr/lib64/python2.6/site-packages/gtk-2.0/gtk/init.py", line 52, in _init
_gtk.init_check()
RuntimeError: could not open display

I guess this is something to do with X server display. But as a user of memory_profile should I worry about all these things. Shouldn't this be taken care internally?

Meanwhile can you provide me any workaround.... instead of displaying the graph can we save it to some "pdf"/"jpeg" or to any other format and the we can open and see.

[ftpronk]

Hi. I think it has to do with the matplotlib backend. I have the same issue, using OpenSUSE 13.2

However, when I add:

import matplotlib
matplotlib.use('Qt4Agg')

at the very top of the mprof executable (i.e. when choosing th Qt4Agg backend), then mprof plot works. More information can be found on the matplotlib site.

Beware of point 4: If you use the use() function, this must be done before importing matplotlib.pyplot. Calling use() after pyplot has been imported will have no effect.

[Thalmann]

Hi,

I got the error: "matplotlib is needed for plotting.".
The problem for me was that matplotlib uses the module tkinter which raises and ImportError in the matplotlib and this was caught by mprof.
I resolved this by installing tkinter after i had installed matplotlib.

I think maybe you guys had the same error, anyways maybe it should be included in the error message?

[oolongtea]

Thanks @Thalmann. yum install tkinter fixed this for me on CentOS 7.

[astrojuanlu]

On the one hand #120 was merged, and on the other hand an alternative fix would be setting the MPLBACKEND to Agg http://matplotlib.org/tutorials/introductory/usage.html#what-is-a-backend

[astrojuanlu]

A friendlier error message is in place and this is a matplotlib installation problem, so I'm closing this issue. If after trying the solutions presented above the problem persists and you think it might be a problem in memory_profiler, please file a different issue.