bootchart | merge of bootchart-collector and pybootchartgui

by xrmx Python Version: 0.14.9 License: GPL-2.0

X-Ray Key Features Code Snippets Community Discussions(1)Vulnerabilities Install Support

kandi X-RAY | bootchart Summary

bootchart is a Python library. bootchart has no bugs, it has no vulnerabilities, it has a Strong Copyleft License and it has low support. However bootchart build file is not available. You can download it from GitHub.

pieces of work. First - the original bootchart: a shell script, and a Java visualisation tool written by Ziga Mahkovec. Some of the original shell scripting, and the concept remain unchanged from this time. friendly and flexible pybootchartgui (cf. README.pybootchart) written by Anders Norgaard and Henning Niss, this lives mostly in the pybootchart/ sub-directory. inner-loop of the original bootchart collector shell-script by Scott James Remnant. This has been subsequently re-written by Michael Meeks to use the higher granularity 'taskstat' data available via a twisted netlink interface, amongst other new features.

Support

Quality

Security

License

Reuse

Support

bootchart has a low active ecosystem.

It has 199 star(s) with 79 fork(s). There are 16 watchers for this library.

It had no major release in the last 12 months.

There are 19 open issues and 35 have been closed. On average issues are closed in 52 days. There are 6 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of bootchart is 0.14.9

Quality

bootchart has 0 bugs and 0 code smells.

Security

bootchart has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

bootchart code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

bootchart is licensed under the GPL-2.0 License. This license is Strong Copyleft.

Strong Copyleft licenses enforce sharing, and you can use them when creating open source projects.

Reuse

bootchart releases are available to install and integrate.

bootchart has no build file. You will be need to create the build yourself to build the component from source.

Installation instructions are not available. Examples and code snippets are available.

It has 1822 lines of code, 145 functions and 10 files.

It has high code complexity. Code complexity directly impacts maintainability of the code.

Top functions reviewed by kandi - BETA

kandi has reviewed bootchart and discovered the below as its top functions. This is intended to give you an instant insight into bootchart implemented functionality, and help decide if they suit your requirements.

Draws an exposure event
Draw the image
Calculate the extents of the tree
Render the trace
Zoom the image
Set scroll adjustments
Sets the upper value of an adjacency
Updates the ppids for the given list of processes
Get the maximum PID of a process subtree
Build process tree
Crop the process stats
Create a new process
Called when area changes
Handle key press events

Get all kandi verified functions for this library.

bootchart Key Features

No Key Features are available at this moment for bootchart.

bootchart Examples and Code Snippets

No Code Snippets are available at this moment for bootchart.

Community Discussions

Trending Discussions on bootchart

Changing Linux kernel module boot order

QUESTION

Changing Linux kernel module boot order

Asked 2020-May-26 at 10:13

I am experimenting with boot optimization on my Raspberry Pi 4 - Yocto based embedded Linux system and would like to set when vc4-drm kernel module is loaded.

I would like to make vc4-drm kernel module loaded earlier so that /dev/fb0 is ready earlier. Now, it exceeds my user space boot time, therefore I am not able to display anything on it for about 9 seconds. However, if I move it so that it is initialized earlier, I'm thinking it will be better.

Below is an image that shows major kernel modules that are loaded on my system, in a complete debug mode (bootchart+initcall_debug+serial+printk enabled). You will see that vc4_drm_register is almost at the end.

In order to approach the issue, I found these: What is the Linux built-in driver load order? and How does Linux determine the order of module init calls?. Yasushi Shoji states;

put your init function in the higher level, or put your device driver at the higher position in Makefile

For the first method, in the kernel that I'm compiling, I found the module in drivers/gpu/drm/vc4, then replaced module_init(vc4_drm_register) with both early_initcall(vc4_drm_register) and subsys_initcall(vc4_drm_register). Both attempts made absolutely no difference, vc4 still loads at around ~9th second. Either I'm missing something here, or this is being handled differently.

Second method suggested is to adjust the order in drivers/Makefile. However, to me gpu/ drivers seems already pretty early stage.

...

ANSWER

Answered 2020-May-26 at 10:13

I was able to solve the problem. It turns out that order to make *_initcall()'s work, the module should be statically linked, therefore, I set;

Source https://stackoverflow.com/questions/62007282

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install bootchart

You can download it from GitHub.
You can use bootchart like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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