zafarella’s gists

zafarella / jvm tuning

Last active December 20, 2015 19:09

jvm tuning

JAVA_OPTS="-Djava.awt.headless=true -Xmx7000M -Xms7000M -XX:MaxPermSize=768M -XX:PermSize=1024M -XX:MaxNewSize=1024M -XX:NewSize=768M -XX:SurvivorRatio=10 -XX:+DisableExplicitGC -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:+CMSParallelRemarkEnabled -XX:CMSInitiatingOccupancyFraction=80 -XX:+UseCMSInitiatingOccupancyOnly -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8 -verbose:gc -XX:+PrintGCDetails -XX:+PrintHeapAtGC -XX:+PrintTenuringDistribution -Xloggc:$LOG_TOMCAT_GC -Dcom.sun.management.jmxremote=true -Dcom.sun.management.jmxremote.port=50000 -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.authenticate=true -Dcom.sun.management.jmxremote.password.file=$CATALINA_HOME/conf/jmxremote.passwd -Dcom.sun.management.jmxremote.access.file=$CATALINA_HOME/conf/jmxremote.access -XX:+CMSClassUnloadingEnabled -XX:+CMSPermGenSweepingEnabled"

zafarella / TOMCAT JVM Tuning (NO JMX Tuning)

Created August 9, 2013 00:06

Tomcat jvm param with more aggressive GC and memory optimization. Use with caution on prod.

JAVA_OPTS="-Djava.awt.headless=true -Xmx7000M -Xms7000M -XX:MaxPermSize=768M -XX:PermSize=1024M -XX:MaxNewSize=1024M -XX:NewSize=768M -XX:SurvivorRatio=10 -XX:+DisableExplicitGC -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:+CMSParallelRemarkEnabled -XX:CMSInitiatingOccupancyFraction=80 -XX:+UseCMSInitiatingOccupancyOnly -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8 -verbose:gc -XX:+PrintGCDetails -XX:+PrintHeapAtGC -XX:+PrintTenuringDistribution -XX:+CMSClassUnloadingEnabled -XX:+CMSPermGenSweepingEnabled"

zafarella / .fonts.conf

Last active August 29, 2015 14:12

	<?xml version='1.0'?>
	<!DOCTYPE fontconfig SYSTEM 'fonts.dtd'>
	<fontconfig>
	<!--
	Documented at
	http://linux.die.net/man/5/fonts-conf

	To check font mapping run the command at terminal
	$ fc-match 'helvetica Neue'

zafarella / idea64.vmoptions

Created January 21, 2015 01:06

faster 64bit IntelliJ Idea JVM options

	-ea
	-server
	-Xms2g
	-Xmx4g
	-Xss16m
	-XX:PermSize=456m
	-XX:MaxPermSize=556m
	-XX:+DoEscapeAnalysis
	-XX:+UseCompressedOops
	-XX:+UnlockExperimentalVMOptions

zafarella / yosemite-remove-stupid-animations

Created August 16, 2015 00:47

-defaults write -g NSAutomaticWindowAnimationsEnabled -bool false
-# smooth scrolling
-defaults write -g NSScrollAnimationEnabled -bool false
-# showing and hiding sheets, resizing preference windows, zooming windows
-# float 0 doesn’t work

zafarella / apache felix

Created October 2, 2015 03:11

apache felix install eb console

	g! deploy org.apache.felix.webconsole
	# do lb
	# and start
	# start HTTP Service (1.0.0)
	# and
	# Apache Felix Web Management Console
	g! start 10
	g! start 10

zafarella / compress_jpg.sh

Last active October 15, 2015 03:01

compress JPG files in batch using imagick

	#!/bin/bash

	for f in *.JPG
	do
	mogrify -verbose -quality "97%" -resize 2048x2048 -filter Lanczos -interlace Plane ${f} _${f}
	done

zafarella / java8-options-run

Created January 14, 2016 22:39

	-ea
	-server
	-Xms2g
	-Xmx4g
	-Xss16m
	-XX:+DoEscapeAnalysis
	-XX:+UseCompressedOops
	-XX:+UnlockExperimentalVMOptions
	-XX:+UseConcMarkSweepGC
	-XX:LargePageSizeInBytes=256m

zafarella / intellij VM Options

Created November 14, 2016 04:18

IntelliJ IDEA 2016.2.5 VM options for better response time. (OSX 16GB) -> Help -> Edit custom VM options

	-Xms128m
	-Xmx1g
	-XX:ReservedCodeCacheSize=240m
	-XX:+UseCompressedOops
	-XX:+UseConcMarkSweepGC
	-XX:+CMSParallelRemarkEnabled
	-XX:ConcGCThreads=4
	-XX:+AlwaysPreTouch
	-XX:+TieredCompilation
	-XX:+UseCompressedOops

zafarella / checkout-folder

Created June 26, 2018 17:20

git checkout only specific folder

	#!/usr/bin/env bash

	#
	# Checkout only specific folder
	#

	cd /tmp
	rm -rf test && mkdir test && cd test
	git init
	git remote add origin [email protected]:zafarella/OSX-RAMDisk.git

Zafar Khaydarov zafarella