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crazylion lee

Vega - 0 views

vega.github.io

visualization canvas svg

shared by crazylion lee on 10 Sep 15 - No Cached
  • crazylion lee on 10 Sep 15
     
    "Vega is a declarative format for creating, saving, and sharing visualization designs. With Vega, visualizations are described in JSON, and generate interactive views using either HTML5 Canvas or SVG."
crazylion lee

CSS Reference - A free visual guide to the most popular CSS properties. - 0 views

cssreference.io

css css3 visual guide reference

shared by crazylion lee on 26 Nov 16 - No Cached
  • crazylion lee on 26 Nov 16
     
    "A free visual guide to CSS"
crazylion lee

Cloudcraft - Draw AWS diagrams - 0 views

cloudcraft.co

aws diagrams amazon visualization diagram

shared by crazylion lee on 10 Dec 16 - No Cached
  • crazylion lee on 10 Dec 16
     
    "Visualize your cloud architecture like a pro Create smart AWS diagrams "
crazylion lee

Getting Started | d3.compose - 0 views

csnw.github.io/d3.compose

d3.js chart d3 visualization

shared by crazylion lee on 28 Dec 16 - No Cached
  • crazylion lee on 28 Dec 16
     
    "Compose complex, data-driven visualizations from reusable charts and components with d3."
張 旭

What's the difference between Prometheus and Zabbix? - Stack Overflow - 0 views

stackoverflow.com/...-between-prometheus-and-zabbix

system monitor php go

shared by 張 旭 on 23 Apr 18 - No Cached
  • Zabbix has core written in C and webUI based on PHP
  • Zabbix stores data in RDBMS (MySQL, PostgreSQL, Oracle, sqlite) of user's choice.
  • Prometheus uses its own database embedded into backend process
  • ...8 more annotations...
  • Zabbix by default uses "pull" model when a server connects to agents on each monitoring machine, agents periodically gather the info and send it to a server.
  • Prometheus prefers "pull" model when a server gather info from client machines.
  • Prometheus requires an application to be instrumented with Prometheus client library (available in different programming languages) for preparing metrics.
  • expose metrics for Prometheus (similar to "agents" for Zabbix)
  • Zabbix uses its own tcp-based communication protocol between agents and a server.
  • Prometheus uses HTTP with protocol buffers (+ text format for ease of use with curl).
  • Prometheus offers basic tool for exploring gathered data and visualizing it in simple graphs on its native server and also offers a minimal dashboard builder PromDash. But Prometheus is and is designed to be supported by modern visualizing tools like Grafana.
  • Prometheus offers solution for alerting that is separated from its core into Alertmanager application.
crazylion lee

Node-RED - 0 views

nodered.org

javascript nodejs pi

shared by crazylion lee on 16 Oct 15 - No Cached
  • crazylion lee on 16 Oct 15
     
    "A visual tool for wiring the Internet of Things"
crazylion lee

Introducing GeoViews | Continuum - 0 views

www.continuum.io/...introducing-geoviews

python geo map

shared by crazylion lee on 11 Sep 16 - No Cached
  • crazylion lee on 11 Sep 16
     
    "GeoViews is a new Python library that makes it easy to explore and visualize geographical, meteorological, oceanographic, weather, climate, and other real-world data. GeoViews was developed by Continuum Analytics, in collaboration with the Met Office. GeoViews is completely open source, available under a BSD license freely for both commercial and non-commercial use, and can be obtained as described at the Github site."
crazylion lee

Textures.js - 0 views

riccardoscalco.github.io/textures

svg patterns javascript textures

shared by crazylion lee on 04 Sep 16 - No Cached
  • crazylion lee on 04 Sep 16
     
    "SVG patterns for Data Visualization"
crazylion lee

GNU Octave - 0 views

www.gnu.org/octave

matlab opensource math

shared by crazylion lee on 10 Jun 16 - No Cached
  • crazylion lee on 10 Jun 16
     
    "GNU Octave is a high-level interpreted language, primarily intended for numerical computations. It provides capabilities for the numerical solution of linear and nonlinear problems, and for performing other numerical experiments. It also provides extensive graphics capabilities for data visualization and manipulation. Octave is normally used through its interactive command line interface, but it can also be used to write non-interactive programs. The Octave language is quite similar to Matlab so that most programs are easily portable."
張 旭

Probably Done Before: Visualizing Docker Containers and Images - 0 views

merrigrove.blogspot.tw/...ker-containers-and-images.html

docker technology system

shared by 張 旭 on 07 Apr 17 - No Cached
  •  In my opinion, understanding how a technology works under the hood is the best way to achieve learning speed and to build confidence that you are using the tool in the correct way.
  • union view
    • 張 旭
      張 旭 on 07 Apr 17
       
      把多層 image layer 串接起來，看上去就像是在讀一個 image 檔案而已。
  • The top-level layer may be read by a union-ing file system (AUFS on my docker implementation) to present a single cohesive view of all the changes as one read-only file system
  • ...36 more annotations...
  • it is nearly the same thing as an image, except that the top layer is read-write
  • A container is defined only as a read-write layer atop an image (of read-only layers itself).  It does not have to be running.
  • a running container
    • 張 旭
      張 旭 on 07 Apr 17
       
      之前一直搞錯了！不是 run 起來的才會叫 container，只要有 read-write layer 就是了！
  • the the isolated process-space and processes within
  • A running container is defined as a read-write "union view" and
  • kernel-level technologies like cgroups, namespaces
  • The processes within this process-space may change, delete or create files within the "union view" file that will be captured in the read-write layer
  • there is no longer a running container
    • 張 旭
      張 旭 on 07 Apr 17
       
      這行指令執行結束之後，running container 就停掉了，但是該 container 還在！
  • each layer contains a pointer to a parent layer using the Id
  • The 'docker create' command adds a read-write layer to the top stack based on the image id.  It does not run this container.
  • The command 'docker start' creates a process space around the union view of the container's layers.
  • can only be one process space per container.
  • the docker run command starts with an image, creates a container, and starts the container
  • 'git pull' (which is a combination of 'git fetch' and 'git merge')
  • 'docker ps' lists out the inventory of running containers on your system
  • 'docker ps -a' where the 'a' is short for 'all' lists out all the containers on your system, whether stopped or running.
  • Only those images that have containers attached to them or that have been pulled are considered top-level.
  • 'docker stop' issues a SIGTERM to a running container which politely stops all the processes in that process-space.
  • results is a normal, but non-running, container
  • 'docker kill' issues a non-polite SIGKILL command to all the processes in a running container.
  • 'docker stop' and 'docker kill' which send actual UNIX signals to a running process
  • 'docker pause' uses a special cgroups feature to freeze/pause a running process-space
  • 'docker rm' removes the read-write layer that defines a container from your host system
  • It effectively deletes files
  • 'docker rmi' removes the read-layer that defines a "union view" of an image.
  • 'docker commit' takes a container's top-level read-write layer and burns it into a read-only layer.
  • turns a container (whether running or stopped) into an immutable image
  • uses the FROM directive in the Dockerfile file as the starting image and iteratively 1) runs (create and start) 2) modifies and 3) commits.
  • At each step in the iteration a new layer is created.
  • 'docker exec' command runs on a running container and executes a process in that running container's process space
  • 'docker inspect' fetches the metadata that has been associated with the top-layer of the container or image
  • 'docker save' creates a single tar file that can be used to import on a different host system
  • only be run on an image
  • 'docker export' command creates a tar file of the contents of the "union view" and flattens it for consumption for non-Docker usages
  • This command removes the metadata and the layers.  This command can only be run on containers.
  • 'docker history' command takes an image-id and recursively prints out the read-only layers
crazylion lee

cyrus-and/gdb-dashboard - 0 views

github.com/...gdb-dashboard

gdb python

shared by crazylion lee on 02 Oct 15 - No Cached
  • crazylion lee on 02 Oct 15
     
    "Modular visual interface for GDB in Python"
crazylion lee

Bcfg2 - 0 views

bcfg2.org

sysadmin server system

shared by crazylion lee on 08 Oct 16 - No Cached
  • crazylion lee on 08 Oct 16
     
    "Bcfg2 helps system administrators produce a consistent, reproducible, and verifiable description of their environment, and offers visualization and reporting tools to aid in day-to-day administrative tasks. It is the fifth generation of configuration management tools developed in the Mathematics and Computer Science Division of Argonne National Laboratory. "
crazylion lee

Eve - 0 views

programming.witheve.com

programming ide visual

shared by crazylion lee on 31 Oct 16 - No Cached
  • crazylion lee on 31 Oct 16
     
    "Eve is a programming language and IDE based on years of research into building a human-first programming platform. From code embedded in documents to a language without order, it presents an alternative take on what programming could be - one that focuses on us instead of the machine. This is Eve:"
crazylion lee

Image Kernels explained visually - 0 views

setosa.io/image-kernels

image-processing

shared by crazylion lee on 20 Aug 16 - No Cached
  • crazylion lee on 20 Aug 16
     
    "An image kernel is a small matrix used to apply effects like the ones you might find in Photoshop or Gimp, such as blurring, sharpening, outlining or embossing. They're also used in machine learning for 'feature extraction', a technique for determining the most important portions of an image. In this context the process is referred to more generally as "convolution" (see: convolutional neural networks.)"
crazylion lee

Carbide Alpha | Buggy But Live! - 0 views

alpha.trycarbide.com

javascript programming ide visual

shared by crazylion lee on 27 Aug 16 - No Cached
  • crazylion lee on 27 Aug 16
     
    "Carbide is a new kind of programming environment"
crazylion lee

Cytoscape.js - 0 views

cytoscape.github.io/cytoscape.js

javascript visualization

shared by crazylion lee on 22 Feb 14 - No Cached
  • crazylion lee on 22 Feb 14
     
    A JavaScript graph library for analysis and visualisation (compatible with CommonJS/Node.js, jQuery 1.4+, and plain JavaScript)
crazylion lee

Folio - Simple visual version control tool for Mac based on Git - 0 views

folioformac.com

git versioncontrol design

shared by crazylion lee on 02 Oct 15 - No Cached
  • crazylion lee on 02 Oct 15
     
    "Simple version control for Designers"
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