The intent is to define terse, standards-supported names for AWS regions.
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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 |
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service salt-minion stop | |
rm -f /etc/salt/pki/minion/minion_master.pub | |
echo "master: salt" > /etc/salt/minion | |
service salt-minion start |
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Below are the Big O performance of common functions of different Java Collections. | |
List | Add | Remove | Get | Contains | Next | Data Structure | |
---------------------|------|--------|------|----------|------|--------------- | |
ArrayList | O(1) | O(n) | O(1) | O(n) | O(1) | Array | |
LinkedList | O(1) | O(1) | O(n) | O(n) | O(1) | Linked List | |
CopyOnWriteArrayList | O(n) | O(n) | O(1) | O(n) | O(1) | Array | |
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from flask import abort, make_response, jsonify | |
abort(make_response(jsonify(message="Message goes here"), 400)) |
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#!/bin/bash | |
uuser="unsplash_user_name" | |
path="path/to/dir" | |
size=$(xdpyinfo | grep dimensions | awk '{print $2}') | |
curl "https://source.unsplash.com/user/$uuser/$size" --location --output $path/unsplash-random.jpeg | |
gsettings set org.gnome.desktop.background picture-uri file://$path/unsplash-random.jpeg |
./thesis
├── docker-compose.yaml
├── micrsoserviceX
├── micrsoserviceY
├── memory-engine
Adapted from here. Below is an executive summary for the use case of a university collaborative thesis project.
If some lost soul is searching for a way to validate a json schema in NativeScript, the only plugin that I found to work is tv4
(https://github.com/geraintluff/tv4)