• Sleep in, be more productive

    Finally, there is proof that it’s better not to wake me too early. A scientific study shows that people who get up later in the day are able to stay productive longer: 

    If you allow them to live on their preferred schedule, then they can outperform the morning types.

    Please don’t call before 1pm tomorrow. :-)

  • A look into a Google datacenter

    Following up to the recent entry about Google's custom server chassis, in this video we get a glimpse into one of Google's datacenters where those servers are in operation.

    [youtube=http://www.youtube.com/watch?v=bs3Et540-_s&hl=de&fs=1]

    Again, Google does it their own way by using separate containers with the necessary infrastructure built in instead of having different rooms for all the racks. The data center building itself delivers power and cooling. I guess it's because of the more modular structure that allows replacement of a complete server "room" why Google chose that approach.

  • Sleep in, be more productive

    Finally, there is proof that it’s better not to wake me too early. A scientific study shows that people who get up later in the day are able to stay productive longer: 

    If you allow them to live on their preferred schedule, then they can outperform the morning types.

    Please don’t call before 1pm tomorrow. :-)

  • Google's homebrew server chassis

    At this year's Efficient Data Center Summit, held April 1st 2009 at Google's Mountain View, CA campus, Ben Jai, Google Server Platform Architect, displayed one of the servers they deploy in all of their global datacenters:

    [youtube=http://www.youtube.com/watch?v=J139Aelaf0g&hl=de&fs=1]

    While there probably are many other well-known ISPs that use custom-built servers, I find it interesting that Google goes as far as to add a 12V battery to every server to replace the traditional large UPS systems normally used in datacenters.

  • WordPress comment count

    This statement corrects all the comment count in WP posts by querying every posts actual comments:

    UPDATE wp_posts p SET p.comment_count = (
        SELECT count(*) FROM wp_comments
        WHERE comment_post_id = p.id AND
           comment_approved = 1 );