| alias update='sudo softwareupdate -i -a; brew update; brew upgrade --all; brew cleanup; brew cask cleanup; brew prune; npm update -g npm; npm update -g; sudo gem update --system; gem update; gem cleanup; pip freeze --local | grep -v '^\-e' | cut -d = -f 1 | xargs -n1 pip install -U; sudo composer self-update; composer global update; . updatePerl; cpan -u; meteor update;' |
All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.
Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.
elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent
| // extract pixel from a CGImage | |
| /* use case: | |
| let extractor = PixelExtractor(img: UIImage(named: "gauge_vertical")!.CGImage!) | |
| let color = extractor.color_at(x: 10, y: 20) | |
| */ | |
| class PixelExtractor { | |
| // taken from http://stackoverflow.com/questions/24049313/ | |
| // and adapted to swift 1.2 |
| function transfer | |
| if test (count $argv) -eq 0 | |
| echo "No arguments specified. Usage:\necho transfer /tmp/test.md\ncat /tmp/test.md | transfer test.md" | |
| return 1 | |
| end | |
| ## get temporarily filename, output is written to this file show progress can be showed | |
| set tmpfile ( mktemp -t transferXXX ) | |
| ## upload stdin or file |
I've had the opertunity to try a variety of different server configurations but never really got around to trying HHVM with Magento until recently. I thought I would share a detailed walkthrough of configuring a single instance Magento server running Nginx + Fast CGI + HHVM / PHP-FPM + Redis + Percona. For the purpose of this blog post I'm assuming you are using Fedora, CentOS, or in my case RHEL 6.5.
Please note: I'm 100% open to suggestions. If you see something I did that needs to be done a different way, please let me know. I haven't included my Perconca my.conf file yet. I will shortly. Also I plan on trying this same test with HHVM 3.3 and PHP 7.
rpm -Uvh http://download.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm
rpm -Uvh http://rpms.famillecollet.com/enterprise/remi-release-6.rpm
rpm -Uvh http://mirror.webtatic.com/yum/el6/latest.rpm| # configure proxy for git while on corporate network | |
| # From https://gist.github.com/garystafford/8196920 | |
| function proxy_on(){ | |
| # assumes $USERDOMAIN, $USERNAME, $USERDNSDOMAIN | |
| # are existing Windows system-level environment variables | |
| # assumes $PASSWORD, $PROXY_SERVER, $PROXY_PORT | |
| # are existing Windows current user-level environment variables (your user) | |
| # environment variables are UPPERCASE even in git bash |
| # Basic Strongswan ikev2 server setup | |
| * paltform: atlantic.net ubuntu 14.04 x64 | |
| * the commands below are run with root account | |
| ## Strongswan | |
| ``` | |
| apt-get install strongswan | |
| apt-get install iptables iptables-persistent | |
| ``` |
| #!/bin/sh | |
| # dependencies | |
| echo "Installing dependencies via Homebrew (http://brew.sh)" | |
| ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)" | |
| brew update | |
| brew install gcc48 |
| # Install ARCH Linux with encrypted file-system and UEFI | |
| # The official installation guide (https://wiki.archlinux.org/index.php/Installation_Guide) contains a more verbose description. | |
| # Download the archiso image from https://www.archlinux.org/ | |
| # Copy to a usb-drive | |
| dd if=archlinux.img of=/dev/sdX bs=16M && sync # on linux | |
| # Boot from the usb. If the usb fails to boot, make sure that secure boot is disabled in the BIOS configuration. | |
| # Set swedish keymap |
