Mike lazercorn

Torrent Courses List

Click to expand (inactive list)

Code is clean if it can be understood easily – by everyone on the team. Clean code can be read and enhanced by a developer other than its original author. With understandability comes readability, changeability, extensibility and maintainability.

General rules

Follow standard conventions.
Keep it simple stupid. Simpler is always better. Reduce complexity as much as possible.
Boy scout rule. Leave the campground cleaner than you found it.
Always find root cause. Always look for the root cause of a problem.

Design rules

Code is clean if it can be understood easily – by everyone on the team. Clean code can be read and enhanced by a developer other than its original author. With understandability comes readability, changeability, extensibility and maintainability.

General rules

Follow standard conventions.
Keep it simple stupid. Simpler is always better. Reduce complexity as much as possible.
Boy scout rule. Leave the campground cleaner than you found it.
Always find root cause. Always look for the root cause of a problem.

Design rules

Sample config for 2 million web socket connection

    sysctl -w fs.file-max=12000500
    sysctl -w fs.nr_open=20000500
    # Set the maximum number of open file descriptors
    ulimit -n 20000000

    # Set the memory size for TCP with minimum, default and maximum thresholds 
 sysctl -w net.ipv4.tcp_mem='10000000 10000000 10000000'

Falsehoods programmers believe about time

This is a compiled list of falsehoods programmers tend to believe about working with time.

Don't re-invent a date time library yourself. If you think you understand everything about time, you're probably doing it wrong.

Falsehoods

There are always 24 hours in a day.
February is always 28 days long.
Any 24-hour period will always begin and end in the same day (or week, or month).

	package main

	import (
	"bytes"
	"encoding/json"
	"fmt"
	"strconv"
	)

	func main() {

	package main

	import (
	"encoding/json"
	"fmt"
	"log"
	"time"
	)

	type MyStruct struct {

	-server
	-Xms2g
	-Xmx2g
	-Xss16m
	-XX:+UseConcMarkSweepGC
	-XX:+CMSParallelRemarkEnabled
	-XX:ConcGCThreads=4
	-XX:ReservedCodeCacheSize=128m
	-XX:+AlwaysPreTouch
	-XX:+TieredCompilation

	-Xms512m
	-Xmx3g
	-XX:MaxPermSize=2g
	-XX:ReservedCodeCacheSize=1g
	-XX:+UseCompressedOops

	# custom Android Studio VM options

	#
	# DO NOT modify this file directly. If there is a value that you would like to override,
	# please add it to your user specific configuration file.
	#
	# See http://tools.android.com/tech-docs/configuration
	#
	-server
	-Xms1G