Improve DevTools perfromance user timing measurement name

src/core/instance/init.js

@@ -21,7 +21,7 @@ export function initMixin (Vue: Class<Component>) {
  let startTag, endTag
  /* istanbul ignore if */
  if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
- startTag = `vue-perf-init:${vm._uid}`
+ startTag = `vue-perf-start:${vm._uid}`
  endTag = `vue-perf-end:${vm._uid}`
  mark(startTag)
  }
@@ -62,7 +62,7 @@ export function initMixin (Vue: Class<Component>) {
  if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
  vm._name = formatComponentName(vm, false)
  mark(endTag)
- measure(`${vm._name} init`, startTag, endTag)
+ measure(`vue ${vm._name} init`, startTag, endTag)
  }
 
  if (vm.$options.el) {

src/core/instance/lifecycle.js

@@ -176,12 +176,12 @@ export function mountComponent (
  mark(startTag)
  const vnode = vm._render()
  mark(endTag)
- measure(`${name} render`, startTag, endTag)
+ measure(`vue ${name} render`, startTag, endTag)
 
  mark(startTag)
  vm._update(vnode, hydrating)
  mark(endTag)
- measure(`${name} patch`, startTag, endTag)
+ measure(`vue ${name} patch`, startTag, endTag)
  }
  } else {
  updateComponent = () => {

src/platforms/web/entry-runtime-with-compiler.js

@@ -73,7 +73,7 @@ Vue.prototype.$mount = function (
  /* istanbul ignore if */
  if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
  mark('compile end')
- measure(`${this._name} compile`, 'compile', 'compile end')
+ measure(`vue ${this._name} compile`, 'compile', 'compile end')
  }
  }
  }