将cProfile结果与KCacheGrind一起使用 [英] Using cProfile results with KCacheGrind

问题描述

我正在使用cProfile来分析我的Python程序.根据此话题，我的印象是KCacheGrind可以解析并显示cProfile的输出. >

但是，当我要导入文件时，KCacheGrind只会在状态栏中显示未知文件格式"错误，而坐在那里什么也不显示.

在我的分析统计信息与KCacheGrind兼容之前，我需要做些特别的事情吗?

...
if profile:
    import cProfile

    profileFileName = 'Profiles/pythonray_' + time.strftime('%Y%m%d_%H%M%S') + '.profile'

    profile = cProfile.Profile()
    profile.run('pilImage = camera.render(scene, samplePattern)')

    profile.dump_stats(profileFileName)
    profile.print_stats()
else:            
    pilImage = camera.render(scene, samplePattern)
...

打包版本

• KCacheGrind 4.3.1
• Python 2.6.2

解决方案

可以使用名为 lscallproftree

本文介绍了如何: CherryPy-CacheGrind

结果代码如下:

...
if profile:
    import cProfile
    import lsprofcalltree

    profileFileName = 'Profiles/pythonray_' + time.strftime('%Y%m%d_%H%M%S') + '.profile'

    profile = cProfile.Profile()
    profile.run('pilImage = camera.render(scene, samplePattern)')

    kProfile = lsprofcalltree.KCacheGrind(profile)

    kFile = open (profileFileName, 'w+')
    kProfile.output(kFile)
    kFile.close()

    profile.print_stats()    
else:            
    pilImage = camera.render(scene, samplePattern)
...

如果有人知道不需要外部(即未随Python附带)模块执行此操作的方法，我仍然非常有兴趣了解它.

I'm using cProfile to profile my Python program. Based upon this talk I was under the impression that KCacheGrind could parse and display the output from cProfile.

However, when I go to import the file, KCacheGrind just displays an 'Unknown File Format' error in the status bar and sits there displaying nothing.

Is there something special I need to do before my profiling stats are compatible with KCacheGrind?

...
if profile:
    import cProfile

    profileFileName = 'Profiles/pythonray_' + time.strftime('%Y%m%d_%H%M%S') + '.profile'

    profile = cProfile.Profile()
    profile.run('pilImage = camera.render(scene, samplePattern)')

    profile.dump_stats(profileFileName)
    profile.print_stats()
else:            
    pilImage = camera.render(scene, samplePattern)
...

Package Versions

• KCacheGrind 4.3.1
• Python 2.6.2

解决方案

It can be done using an external module called lscallproftree

This article explains how: CherryPy - CacheGrind

With my resulting code looking like so:

...
if profile:
    import cProfile
    import lsprofcalltree

    profileFileName = 'Profiles/pythonray_' + time.strftime('%Y%m%d_%H%M%S') + '.profile'

    profile = cProfile.Profile()
    profile.run('pilImage = camera.render(scene, samplePattern)')

    kProfile = lsprofcalltree.KCacheGrind(profile)

    kFile = open (profileFileName, 'w+')
    kProfile.output(kFile)
    kFile.close()

    profile.print_stats()    
else:            
    pilImage = camera.render(scene, samplePattern)
...

If anyone knows a way to do this that doesn't require an external (ie. not shipped with Python) module, I'd still be very interested to hear about it.

这篇关于将cProfile结果与KCacheGrind一起使用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！