umutseven92

Graphics

Shaders

• GLSL stands for openGL Shading Language, which is how shaders are written in the OpenGL API.
  • OpenGL is run by Khronos group.
  • OpenGL is a subset of OpenGL that is for embedded systems.
  • Other alternatives are:
    • Direct3D, part of DirectX, owned by Microsoft,
• Vulkan, next generation OpenGL, also by Khronos group, and,

umutseven92

Elasticsearch

Architecture

• Nodes join a cluster (named elasticsearch by default).
  • One node becomes the master node.
• Each index data is divided into shards.
  • Internally, an index is a logical namespace that points to one or more shards.
  • 5 shards by default.
• Due to how routing works, these shards cannot be increased later; you would need to create a new index.

umutseven92

Search

Learning to Rank

• Applies supervised machine learning to search relevance ranking.
• A model is trained based on some preprocessed data.
• This data with hand-labeled ranks is then used to optimize future results.

Vector Based Search

umutseven92

Python

How it Works

• Python code, written in .py file is first compiled to what is called bytecode, which is stored with a .pyc, .pyo or .pyd format.
  • This bytecode is then executed by the interpreter, on instruction at a time.
  • When a module is imported, Python will cache the bytecode of the module as .pyc, .pyo and .pyd files in the __pycache__ folder.
  • .pyc is the bytecode of the module.
  • .pyo is the bytecode of the module if Python is ran with optimisation options (-o and -oo)
• .pyd is Windows only and is packaged as a DLL.

umutseven92

Rust

Data Types

• The default type is f64 because on modern CPUs it’s roughly the same speed as f32 but is capable of more precision.
• Declaring arrays: let a: [i32; 5] = [1, 2, 3, 4, 5];
• isize and usize types depend on the kind of computer your program is running on: 64 bits if you’re on a 64-bit architecture and 32 bits if you’re on a 32-bit architecture.
• Unlike languages such as Ruby and JavaScript, Rust will not automatically try to convert non-Boolean types to a Boolean.
• Rust does not have nulls, but it has Option:

umutseven92

$ gitleaks --repo-path=. -v && git push
INFO[2019-05-10T01:35:23+01:00] opening .                                    
INFO[2019-05-10T01:35:26+01:00] 0 leaks detected. 200 commits inspected in 3 seconds 357 milliseconds 
Counting objects: 5, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (3/3), done.
Writing objects: 100% (3/3), 289 bytes | 0 bytes/s, done.

umutseven92

$ gitleaks --repo-path=. -v && git push
INFO[2019-05-10T01:34:24+01:00] opening .                                    
{
   "line": "const AWS_KEY = \"AKIALALEMEL33243OLIAE\"",
   "commit": "1310d0e0c6d41ff4df89d3bf9fe0cf428932b1eb",
   "offender": "AKIALALEMEL33243OLIA",
   "reason": "AWS",
   "commitMsg": "Add keys ",
   "author": "Umut Seven \[email protected]\u003e",
   "file": "keys.go",