obs | Linux Observability Primitives
kandi X-RAY | obs Summary
kandi X-RAY | obs Summary
Very grand title for a humble start. This repository contains my experiments with low level Linux observability, in Go. If you are interested in the domain, you should probably check out bcc and gobpf. They support eBPF. I may integrate eBPF support at some point, either through gobpf of directly, but that's a whole different story.
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Top functions reviewed by kandi - BETA
- initFromReader initializes the fields of a format .
- newPerfSystemEvent creates a new perfSystemEvent .
- parseFieldTypeName parses a field name .
- parseField parses a field .
- main is the main loop
- parseOnlineCPUs parses a string into a list of CPU IDs .
- perfEventOpen opens a new perf event .
- decodeIntInternal decodes data into the field .
- getType returns the type of the token
- parseFieldNumber parses a field number .
obs Key Features
obs Examples and Code Snippets
Lines of Code : 8License : Non-SPDX
Copypublic final void registerObserver(EventObserver obs, Event e) {
if (!observerLists.containsKey(e)) {
observerLists.put(e, new LinkedList<>());
}
if (!observerLists.get(e).contains(obs)) {
observerLists.get(e).add(obs);
Community Discussions
Trending Discussions on obs
QUESTION
This is a followup or more a simplification of this question Error: File header.tex not found in resource path in a rmarkdown generated pdf report from a shiny app
With this Rmarkdown code I can achieve what I want:
logo.png
report.Rmd
...ANSWER
Answered 2022-Apr-09 at 16:36Basically you already figured out what's the issue. Hence one approach to fix your issue would be to do copy both the report template and the logo to the same temporary directory.
QUESTION
I'm struggling to understand how to use WebIO. From the documentation, this would be an example to send values to javascript:
ANSWER
Answered 2022-Mar-30 at 09:44I guess there is an error in the documentation. The problem is that there are no listeners on the observable. I.e., julia> obs returns Observable{String} with 0 listeners. You can add a listener by WebIO.ensure_sync(s, "logme"), or you can write it like this:
QUESTION
I have a data frame combining single and multi-values obs.
...ANSWER
Answered 2022-Mar-25 at 14:49We may use combn on each row and get the frequency
QUESTION
I have a dataframe that identifies a set of values with an id:
...ANSWER
Answered 2022-Mar-22 at 21:24How about reshaping wider and using paste0()?
QUESTION
I was working on making this TOS page but ran into a problem with the fade-in/fade-out animations.
I got the div to fade in when the button is clicked but don't know how to let it fade-out when the button is clicked again. Any tips would be helpful
...ANSWER
Answered 2022-Mar-18 at 19:49made the code for the toggle you probably don't need that. The main part is the fade-out animation:
QUESTION
Sorry for asking the same type of question, but I just can't wrap my head around how to take my custom function and iterate it over grouped data. So bonus points if anyone can point me to some in-depth resources.
This works as intended:
...ANSWER
Answered 2022-Mar-08 at 19:01We may use group_modify here
QUESTION
The data that I have:
...ANSWER
Answered 2022-Feb-16 at 19:18We could use cur_group_id()
QUESTION
I'm trying the create a 3D subscene with objects being labelled using Label objects in a 2D overlay. I've seen similar questions to mine on this subject, and they all point to using the Node.localToScene method on the node to be labelled in the 3D space. But this doesn't seem to work for my case. I've taken example code from the FXyz FloatingLabels example here:
The Label objects need to have their positions updated as the 3D scene in modified, which I've done but when I print out the coordinates returned by the Node.localToScene method, they're much too large to be within the application scene, and so the labels are never visible in the scene. I've written an example program that illustrates the issue, set up very similarly to the FXyz sample code but I've created an extra SubScene object to hold the 2D and 3D SubScene objects in order to plant them into a larger application window with slider controls. The 3D scene uses a perspective camera and shows a large sphere with coloured spheres along the x/y/z axes, and some extra little nubs on the surface for reference:
...ANSWER
Answered 2022-Feb-02 at 12:28If you follow what has been done in the link you have posted you'll make it work.
For starters, there is one subScene, not two.
So I've removed these lines:
QUESTION
I would like to be able to robustly stop a video when the video arrives on some specified frames in order to do oral presentations based on videos made with Blender, Manim...
I'm aware of this question, but the problem is that the video does not stops exactly at the good frame. Sometimes it continues forward for one frame and when I force it to come back to the initial frame we see the video going backward, which is weird. Even worse, if the next frame is completely different (different background...) this will be very visible.
To illustrate my issues, I created a demo project here (just click "next" and see that when the video stops, sometimes it goes backward). The full code is here.
The important part of the code I'm using is:
...ANSWER
Answered 2022-Jan-21 at 19:18The video has frame rate of 25fps, and not 24fps:
After putting the correct value it works ok: demo
The VideoFrame api heavily relies on FPS provided by you. You can find FPS of your videos offline and send as metadata along with stop frames from server.
The site videoplayer.handmadeproductions.de uses window.requestAnimationFrame() to get the callback.
There is a new better alternative to requestAnimationFrame. The requestVideoFrameCallback(), allows us to do per-video-frame operations on video.
The same functionality, you domed in OP, can be achieved like this:
QUESTION
I have a data.frame database with 14 columns. I split these columns into two groups: [,1:6] and [,7:14].
ANSWER
Answered 2021-Dec-21 at 21:23I would use the well established Hmisc::rcorr for the calculations. In corrplot::corrplot, subset both the corr= and the p.mat= with [1:6, 7:14].
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