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@SeungjunNah
SeungjunNah / download_REDS.py
Last active April 21, 2025 22:02
REDS dataset downloading script
# reference: https://stackoverflow.com/questions/25010369/wget-curl-large-file-from-google-drive
import os
import requests
import argparse
def download_file_from_google_drive(id, destination):
def get_confirm_token(response):
for key, value in response.cookies.items():
if key.startswith('download_warning'):
@ipbastola
ipbastola / clean-up-boot-partition-ubuntu.md
Last active August 16, 2024 13:39
Safest way to clean up boot partition - Ubuntu 14.04LTS-x64, Ubuntu 16.04LTS-x64

Safest way to clean up boot partition - Ubuntu 14.04LTS-x64, Ubuntu 16.04LTS-x64

Reference

Case I: if /boot is not 100% full and apt is working

1. Check the current kernel version

$ uname -r 
@jbgo
jbgo / free-space-on-boot-disk.md
Last active April 3, 2025 19:21
Free up space on /boot disk (ubuntu)

Free disk space when /boot is full (Ubuntu)

TL;DR

dpkg -l linux-image*
uname -r
sudo apt-get remove linux-image-2.6.32-{21,37,38,39,40,41,42,43,44}-server
sudo apt-get autoremove
@jboner
jboner / latency.txt
Last active July 6, 2025 21:54
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers (~2012)
----------------------------------
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