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@MrRoyce
MrRoyce / gist:097edc0de2fe001288be2e8633f4b22a
Last active October 7, 2019 09:18
AWS CodeDeploy Lamda formatter for Slack messages - node.js
var services = '/services/...'; // Update this with your Slack service...
var channel = "#aws-deployments" // And this with the Slack channel
var https = require('https');
var util = require('util');
var formatFields = function(string) {
var
message = JSON.parse(string),
fields = [],
@jboner
jboner / latency.txt
Last active December 11, 2025 11:10
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