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@oglops
oglops / yaml_OrderedDict.py
Last active January 25, 2023 11:08
write to and load from yaml file with OrderedDict
#!/usr/bin/env python
try:
# for python newer than 2.7
from collections import OrderedDict
except ImportError:
# use backport from pypi
from ordereddict import OrderedDict
import yaml
@rob-murray
rob-murray / add_intellij_launcer
Last active June 10, 2024 20:32
Add Intellij launcher shortcut and icon for ubuntu
// create file:
sudo vim /usr/share/applications/intellij.desktop
// add the following
[Desktop Entry]
Version=13.0
Type=Application
Terminal=false
Icon[en_US]=/home/rob/.intellij-13/bin/idea.png
Name[en_US]=IntelliJ
@hellerbarde
hellerbarde / latency.markdown
Created May 31, 2012 13:16 — forked from jboner/latency.txt
Latency numbers every programmer should know

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs