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@mdecimus
mdecimus / jmilter_request.md
Last active June 18, 2024 12:39
jMilter - JSON mail filtering and manipulation protocol

Sample jMilter request for the DATA stage:

{
    "context": {
        "stage": "DATA",
        "sasl": {
            "login": "user",
            "method": "plain"
        },
@mortezaadi
mortezaadi / persistence.xml
Last active July 23, 2024 00:45
persistence xml configurations for major databases and jpa providers
<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd"
version="1.0">
<!-- derby -->
@richieforeman
richieforeman / makeauthority.sh
Created July 23, 2012 21:38
Issue Your Own Self-Signed S/MIME Certs with OpenSSL
# Run this once
openssl genrsa -des3 -out ca.key 4096
openssl req -new -x509 -days 365 -key ca.key -out ca.crt
@jboner
jboner / latency.txt
Last active May 4, 2025 09:35
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