devel.rst
author Oleksandr Gavenko <gavenkoa@gmail.com>
Mon, 22 Feb 2016 12:46:36 +0200
changeset 1905 fba288d59662
child 1912 8b81a8f0f692
permissions -rw-r--r--
Include only local subsections into TOC. This prevent duplication of TOC when build single page HTML document. Also this make unnecessary CSS hack to hide document title as top level section.

.. -*- coding: utf-8; -*-
.. include:: HEADER.rst

=============
 Development
=============
.. contents::
   :local:

Numbers everyone should know
============================

 * L1 cache reference 0.5 ns
 * Branch mispredict 5 ns
 * L2 cache reference 7 ns
 * Mutex lock/unlock 100 ns
 * Main memory reference 100 ns
 * Compress 1K bytes with Zippy 10,000 ns
 * Send 2K bytes over 1 Gbps network 20,000 ns
 * Read 1 MB sequentially from memory 250,000 ns
 * Round trip within same datacenter 500,000 ns
 * Disk seek 10,000,000 ns
 * Read 1 MB sequentially from network 10,000,000 ns
 * Read 1 MB sequentially from disk 30,000,000 ns
 * Send packet CA->Netherlands->CA 150,000,000 ns