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@DenTelezhkin
DenTelezhkin / MeasureAppStartupTime.swift
Last active September 18, 2025 08:14
Measure iOS app startup time, in seconds, from the time user tapped an icon on the home screen (using time, when app process was created). Swift 4.
// Returns number of seconds passed between time when process was created and function was called
func measureAppStartUpTime() -> Double {
var kinfo = kinfo_proc()
var size = MemoryLayout<kinfo_proc>.stride
var mib : [Int32] = [CTL_KERN, KERN_PROC, KERN_PROC_PID, getpid()]
sysctl(&mib, u_int(mib.count), &kinfo, &size, nil, 0)
let start_time = kinfo.kp_proc.p_starttime
var time : timeval = timeval(tv_sec: 0, tv_usec: 0)
gettimeofday(&time, nil)
let currentTimeMilliseconds = Double(Int64(time.tv_sec) * 1000) + Double(time.tv_usec) / 1000.0
@steventroughtonsmith
steventroughtonsmith / gist:62f0b14d5ef532a4be2e2529187c100d
Created November 18, 2016 17:28
iOS Simulator fullscreen enabler
call ((NSWindow *)[(NSArray *)[[NSApplication sharedApplication] windows] lastObject]).collectionBehavior = 1<<7|1<<8|1<<11
@CodaFi
CodaFi / alltheflags.md
Last active June 2, 2024 17:09
Every Option and Flag /swift (1.2) Accepts Ever

#Every Single Option Under The Sun

  • optimization level options
  • automatic crashing options
  • debug info options
  • swift internal options
  • swift debug/development internal options
  • linker-specific options
  • mode options
@quellish
quellish / xcci.md
Created October 28, 2014 03:03
Xcode CI script variables

Variable

Type
@afknapping
afknapping / gist:9bbdb57b3bb72f6c5444
Created July 16, 2014 11:07
WIKI FORMATTING CHEAT SHEET

WIKI FORMATTING CHEAT SHEET

	[http://www.edgewall.com/ Edgewall Software]
	[wiki:TitleIndex Title Index]
	[wiki:ISO9000]
	Tickets: #1 or ticket:1
	Reports: {1} or report:1

	'''bold''', '''!''' can be bold too''', and '''! '''

''italic''

@peeblesjs
peeblesjs / gist:9288f79322ed3119ece4
Last active February 11, 2016 23:31
A naive "valueForKey:" operator in Swift
operator infix --> {}
func --> (instance: Any, key: String) -> Any? {
let mirror = reflect(instance)
for index in 0 ..< mirror.count {
let (childKey, childMirror) = mirror[index]
if childKey == key {
return childMirror.value
}
}
@peterhost
peterhost / node_debian_init.sh
Created November 25, 2010 11:41
Daemon init script for node.js based app/server (DEBIAN/UBUNTU)
#!/bin/sh
# ------------------------------------------------------------------------------
# SOME INFOS : fairly standard (debian) init script.
# Note that node doesn't create a PID file (hence --make-pidfile)
# has to be run in the background (hence --background)
# and NOT as root (hence --chuid)
#
# MORE INFOS : INIT SCRIPT http://www.debian.org/doc/debian-policy/ch-opersys.html#s-sysvinit
# INIT-INFO RULES http://wiki.debian.org/LSBInitScripts
# INSTALL/REMOVE http://www.debian-administration.org/articles/28