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@adham90
adham90 / spacemacs-keybindings
Last active July 25, 2024 23:55
spacemacs keybindings that i need to learn
SPC s c remove highlight
**** Files manipulations key bindings
Files manipulation commands (start with ~f~):
| Key Binding | Description |
|-------------+----------------------------------------------------------------|
| ~SPC f c~ | copy current file to a different location |
| ~SPC f C d~ | convert file from unix to dos encoding |
| ~SPC f C u~ | convert file from dos to unix encoding |
@tanyuan
tanyuan / smart-caps-lock.md
Last active July 28, 2024 11:18
Smart Caps Lock: Remap Caps Lock to Control AND Escape

Smart Caps Lock: Remap to Control AND Escape (Linux, Mac, Windows)

Caps Lock 變成智慧的 Control 以及 Escape

  • 單獨輕按一下就是 Escape
  • 若按下時同時按著其他鍵,就會是 Control

這應該是 Vim 和 Emacs 的最佳解了!(Emacs? Bash 的快捷鍵就是 Emacs 系列的)

  • Send Escape if you tap Caps Lock alone.
@application2000
application2000 / how-to-install-latest-gcc-on-ubuntu-lts.txt
Last active May 23, 2024 07:53
How to install latest gcc on Ubuntu LTS (12.04, 14.04, 16.04)
These commands are based on a askubuntu answer http://askubuntu.com/a/581497
To install gcc-6 (gcc-6.1.1), I had to do more stuff as shown below.
USE THOSE COMMANDS AT YOUR OWN RISK. I SHALL NOT BE RESPONSIBLE FOR ANYTHING.
ABSOLUTELY NO WARRANTY.
If you are still reading let's carry on with the code.
sudo apt-get update && \
sudo apt-get install build-essential software-properties-common -y && \
sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y && \
@caseywatts
caseywatts / darken.md
Last active April 25, 2024 14:47
Darkening PDFs

short url to these instructions: caseywatts.com/darken

Other gists & tricks: http://caseywatts.com/gists-and-tricks

Using Monochrome (recommended)

  • obtain your ugly, gray pdf
  • brew install imagemagick
  • brew install ghostscript
  • magic command!
@joelthchao
joelthchao / demo.py
Last active August 31, 2021 18:02
Keras uses TensorBoard Callback with train_on_batch
import numpy as np
import tensorflow as tf
from keras.callbacks import TensorBoard
from keras.layers import Input, Dense
from keras.models import Model
def write_log(callback, names, logs, batch_no):
for name, value in zip(names, logs):
summary = tf.Summary()
@nadavrot
nadavrot / Matrix.md
Last active July 29, 2024 00:58
Efficient matrix multiplication

High-Performance Matrix Multiplication

This is a short post that explains how to write a high-performance matrix multiplication program on modern processors. In this tutorial I will use a single core of the Skylake-client CPU with AVX2, but the principles in this post also apply to other processors with different instruction sets (such as AVX512).

Intro

Matrix multiplication is a mathematical operation that defines the product of

@sebbbi
sebbbi / FastUniformLoadWithWaveOps.txt
Last active May 11, 2024 07:37
Fast uniform load with wave ops (up to 64x speedup)
In shader programming, you often run into a problem where you want to iterate an array in memory over all pixels in a compute shader
group (tile). Tiled deferred lighting is the most common case. 8x8 tile loops over a light list culled for that tile.
Simplified HLSL code looks like this:
Buffer<float4> lightDatas;
Texture2D<uint2> lightStartCounts;
RWTexture2D<float4> output;
[numthreads(8, 8, 1)]
@MattPD
MattPD / analysis.draft.md
Last active July 26, 2024 00:29
Program Analysis Resources (WIP draft)
@kumavis
kumavis / gist:ab0e6ab555362c5e479d6311c4540bbd
Created November 30, 2020 09:36
go-ethreum mainnet fast sync performance on digital ocean
syncing geth on digital ocean
- name: eth2-mainnet-00
- sync time: (failed to sync, bound by disk perf)
- region: fra1
- type: s-8vcpu-16gb
- primaryDb: attached volume
- ancientDb: attached volume
- price vps: $0.119/hr
- price volume: $0.052/hr 350gb
# IDA (disassembler) and Hex-Rays (decompiler) plugin for Apple AMX
#
# WIP research. (This was edited to add more info after someone posted it to
# Hacker News. Click "Revisions" to see full changes.)
#
# Copyright (c) 2020 dougallj
# Based on Python port of VMX intrinsics plugin:
# Copyright (c) 2019 w4kfu - Synacktiv