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@listochkin
listochkin / node-command-line-options.txt
Created April 17, 2014 11:00
Node V8 GC-related options
--log_gc (Log heap samples on garbage collection for the hp2ps tool.)
type: bool default: false
--expose_gc (expose gc extension)
type: bool default: false
--max_new_space_size (max size of the new generation (in kBytes))
type: int default: 0
--max_old_space_size (max size of the old generation (in Mbytes))
type: int default: 0
--max_executable_size (max size of executable memory (in Mbytes))
type: int default: 0
@tegansnyder
tegansnyder / abandon-cart.sql
Created June 16, 2014 20:04
Abandon cart Magento MySQL query example
SELECT `main_table`.*, (main_table.base_subtotal_with_discount*main_table.base_to_global_rate) AS `subtotal`, `cust_email`.`email`, `cust_fname`.`value` AS `firstname`, `cust_lname`.`value` AS `lastname`, CONCAT_WS(' ', cust_fname.value, cust_lname.value) AS `customer_name` FROM `sales_flat_quote` AS `main_table`
INNER JOIN `customer_entity` AS `cust_email` ON cust_email.entity_id = main_table.customer_id
INNER JOIN `customer_entity_varchar` AS `cust_fname` ON cust_fname.entity_id = main_table.customer_id AND cust_fname.attribute_id = 5
INNER JOIN `customer_entity_varchar` AS `cust_lname` ON cust_lname.entity_id = main_table.customer_id AND cust_lname.attribute_id = 7 WHERE (items_count != '0') AND (main_table.is_active = '1') AND (main_table.created_at >= '2014-06-15 00:00:00') ORDER BY updated_at DESC
@webinista
webinista / RunAProxyOnAmazonEC2VPC.md
Last active August 18, 2024 18:20
Create a proxy server on an Amazon EC2 (VPC) instance

This will create a proxy server in whatever your availability zone your VPC is in. For me, that's us-east-1b. For you, that may be something different. Steps 10+ should more or less work regardless of your provider since those steps cover the setup and configuration of TinyProxy.

  1. Click the Launch Instance button.
  2. Choose Ubuntu Server 14.04 LTS (HVM), SSD Volume Type. This isn't strictly necessary. If you choose another OS, check its documentation for how to install new packages.
  3. On the Choose an Instance Type screen, select t2.micro. It's Free Tier eligible.
  4. Click the Next: ... buttons until you reach the Configure Security Group screen.
    • You may wish to reduce the amount of storage on the Add Storage screen. This is optional.
    • You may wish to add a tag on the Tag Instance screen. This is also optional.
  5. On the Configure Security Group screen:
  • Select Create a new security group.
@karpathy
karpathy / min-char-rnn.py
Last active July 10, 2025 01:16
Minimal character-level language model with a Vanilla Recurrent Neural Network, in Python/numpy
"""
Minimal character-level Vanilla RNN model. Written by Andrej Karpathy (@karpathy)
BSD License
"""
import numpy as np
# data I/O
data = open('input.txt', 'r').read() # should be simple plain text file
chars = list(set(data))
data_size, vocab_size = len(data), len(chars)
@marcin-chwedczuk
marcin-chwedczuk / btree.js
Created May 30, 2016 15:26
BTree implementation in JavaScript
#!/usr/bin/env node
const NKEYS = 4;
function arrayOfSize(size) {
var a = Array(size);
for (var i = 0; i < size; i += 1)
a[i] = null;
@soply
soply / disp_multiple_images.py
Last active November 22, 2024 04:48
Plot multiple images with matplotlib in a single figure. Titles can be given optionally as second argument.
import matplotlib.pyplot as plt
import numpy as np
def show_images(images, cols = 1, titles = None):
"""Display a list of images in a single figure with matplotlib.
Parameters
---------
images: List of np.arrays compatible with plt.imshow.
@vmarkovtsev
vmarkovtsev / notebook.ipynb
Created March 10, 2017 10:40
lapjv blog post
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@martinwicke
martinwicke / automobile.ipynb
Last active January 9, 2022 08:14
Estimator demo using Automobile dataset
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@praveenpuglia
praveenpuglia / shadow-dom.md
Last active May 3, 2025 10:03
Everything you need to know about Shadow DOM

I am moving this gist to a github repo so more people can contribute to it. Also, it makes it easier for me to version control.

Please go to - https://github.com/praveenpuglia/shadow-dom-in-depth for latest version of this document. Also, if you find the document useful, please shower your love, go ⭐️ it. :)

Shadow DOM

Heads Up! It's all about the V1 Spec.

In a nutshell, Shadow DOM enables local scoping for HTML & CSS.

@lucidyan
lucidyan / gpu-control.md
Last active March 19, 2023 09:37
Prevent NVIDIA GPUs' throttling on headless server

Prevent NVIDIA GPUs' throttling on headless server

  • Unlock manual fan & overclock settings
    sudo nvidia-xconfig -a --cool-bits=28 --allow-empty-initial-configuration
  • Reboot system
  • Create script /usr/local/bin/gpu-fan-control.sh
#!/bin/bash