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performance-analysis

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py-spy
gsnedders
gsnedders commented Sep 10, 2018

Trying to run this from PowerShell it just failed silently with no message. From cmd.exe, I got a popup saying "The code execution cannot proceed because VCRUNTIME140.dll was not found. Reinstalling the program may fix this problem." We should probably document that requirement somewhere, if we can't otherwise fix it (does CPython not have the runtime?!).

ghost
ghost commented Dec 13, 2018

There's no way to get a message template for a TraceEvent (the string that's used to generated FormattedMessage).

I'm trying to implement an event forwarder, so all events from ETW sources get sent to an external system and that thing supports message templates natively. It would be great to provide correct strings.

petterreinholdtsen
petterreinholdtsen commented Aug 15, 2016

When profiling openalpr, the profile.coz file (named profile.txt in the attachment to keep github editor happy) show that a lot of time is spent in locations in /usr/include/c++/4.9/bits/stl_vector.h and /usr/include/opencv2/core/mat.hpp (matrix operations). This is not really helpful without knowing from where the STL vector or the matrix operation is used. Perhaps Coz should be adjusted to col

bschindler
bschindler commented Feb 12, 2018

May be I am just misusing the tool, but I feel like this is a bug:

So I profile an app, I filter the main thread and look at the flame graph and get this (which looks wrong):
screenshot_20180212_133913

I then select a range in the timeline view (a very useful feature btw, thanks a lot f

kwladyka
kwladyka commented Dec 30, 2018
window.React = require("react");
window.ReactDOM = require("react-dom");
window.Highlight = require("react-highlight").default;

// material-ui

import {createMuiTheme, MuiThemeProvider} from '@material-ui/core/styles';
window.MaterialUiStyles = {
    createMuiTheme: createMuiTheme,
    MuiThemeProvider: MuiThemeProvider
}

window.MaterialUiCore = {
    AppBar: require("@materi

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