René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Optimize timer._unrefActive","articleBody":"@misterdjules pointed out that node had become significantly faster after optimizing timer._unrefActive(). To get the idea: https://github.com/joyent/node/commits/v0.10/lib/timers.js.\n\nIt turns out that timer._unrefActive() was added somewhere in 2013 to fix an issue related to unref()ing http requests; when an http request object is unref'ed, it's associated timeout timer also needs to be unref'ed or it'll keep the loop open. But it's really a performance bottleneck; _unrefActive() performs what is basically a linear scan of a linked list.\n\nWhat seems more reasonable is to make timers that are stored in the linked list (through Timer.active()) always be unref'ed, and just use a separate TimerWrap object for all user timers that are scheduled through setTimeout/setInterval.\n","author":{"url":"https://github.com/piscisaureus","@type":"Person","name":"piscisaureus"},"datePublished":"2015-01-09T01:44:21.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":5},"url":"https://github.com/268/node/issues/268"}