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Links for 2015-07-21

  • Java lambdas and performance

    Lambdas in Java 8 introduce some unpredictable performance implications, due to reliance on escape analysis to eliminate object allocation on every lambda invocation. Peter Lawrey has some details

    (tags: lambdas java-8 java performance low-latency optimization peter-lawrey coding escape-analysis)

  • Mikhail Panchenko’s thoughts on the July 2015 CircleCI outage

    an excellent followup operational post on CircleCI’s “database is not a queue” outage

    (tags: database-is-not-a-queue mysql sql databases ops outages postmortems)

  • Men who harass women online are quite literally losers, new study finds

    (1) players are anonymous, and the possibility of “policing individual behavior is almost impossible”; (2) they only encounter each other a few times in passing — it’s very possible to hurl an expletive at another player, and never “see” him or her again; and (3) finally, and perhaps predictably, the sex-ratio of players is biased pretty heavily toward men. (A 2014 survey of gender ratios on Reddit found that r/halo was over 95 percent male.) [….] In each of these environments, Kasumovic suggests, a recent influx of female participants has disrupted a pre-existing social hierarchy. That’s okay for the guys at the top — but for the guys at the bottom, who stand to lose more status, that’s very threatening. (It’s also in keeping with the evolutionary framework on anti-lady hostility, which suggests sexism is a kind of Neanderthal defense mechanism for low-status, non-dominant men trying to maintain a shaky grip on their particular cave’s supply of women.) “As men often rely on aggression to maintain their dominant social status,” Kasumovic writes, “the increase in hostility towards a woman by lower-status males may be an attempt to disregard a female’s performance and suppress her disturbance on the hierarchy to retain their social rank.”

    (tags: losers sexism mysogyny women halo gaming gamergate 4chan abuse harrassment papers bullying social-status)

  • The old suburban office park is the new American ghost town – The Washington Post

    Most analyses of the market indicate that office parks simply aren’t as appealing or profitable as they were in the 20th century and that Americans just aren’t as keen to cloister themselves in workspaces that are reachable only by car.

    (tags: cbd cities work life office-parks commuting america history workplaces)


    Jaysus, this is terrifying.

    Miller and Valasek’s full arsenal includes functions that at lower speeds fully kill the engine, abruptly engage the brakes, or disable them altogether. The most disturbing maneuver came when they cut the Jeep’s brakes, leaving me frantically pumping the pedal as the 2-ton SUV slid uncontrollably into a ditch.
    Avoid any car which supports this staggeringly-badly-conceived Uconnect feature:
    All of this is possible only because Chrysler, like practically all carmakers, is doing its best to turn the modern automobile into a smartphone. Uconnect, an Internet-connected computer feature in hundreds of thousands of Fiat Chrysler cars, SUVs, and trucks, controls the vehicle’s entertainment and navigation, enables phone calls, and even offers a Wi-Fi hot spot.
    :facepalm: Also, Chrysler’s response sucks: “Chrysler’s patch must be manually implemented via a USB stick or by a dealership mechanic.”

    (tags: hacking security cars driving safety brakes jeeps chrysler fiat uconnect can-bus can)