marcodiiga

Latency Comparison Numbers
--------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

marcodiiga

• void glEnableVertexAttribArray​(GLuint attribIndex);
• void glDisableVertexAttribArray​(GLuint attribIndex);
• void glVertexAttribPointer(GLuint attribIndex, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const GLvoid * pointer);
• void glVertexAttribFormat(GLuint attribIndex, GLint size, GLenum type, GLboolean normalized, GLuint relativeoffset);
• void glVertexAttribBinding(GLuint attribIndex, GLuint bindingIndex);
• void glBindVertexBuffer(GLuint bindingIndex, GLuint buffer, GLintptr offset, GLintptr stride);

parameter	Details
attribIndex	the location for the vertex attribute to which the vertex array will feed data

marcodiiga

#!/bin/bash

## file to upload. 
S3_UPLOAD_FILE=some/path/file.txt

## Specify the bucket name here. This can be found in the S3 console
S3_BUCKET=bucket name here

## The desired path relative to the root of the bucket. All folders must be forward slash '/' separated
S3_DESTINATION_FILE=folder/folder2/file.txt

marcodiiga

# Please note, the commands below will create unreadable files and should be 
# used for testing file size only. If you're looking for something that has
# lines in it, use /dev/urandom instead of /dev/zero. You'll then be able to
# read the number of lines in that file using `wc -l large-file.1mb.txt`

# Create a 1MB file
dd if=/dev/zero of=large-file-1mb.txt count=1024 bs=1024

# Create a 10MB file
dd if=/dev/zero of=large-file-10mb.txt count=1024 bs=10240