Slashdot Mirror


The Slashdot Effect Investigated

Grenamier writes "Stephen Adler analysed his httpd logs after he published some papers and had mentions made of them on Slashdot, freshmeat.org and linuxtoday.org. The results showed a pretty dramatic demonstration of the Slashdot Effect. " Where's the part where servers melt? Anyway, this amused me so I figured I'd share.

32 comments

  1. Slashdot Effect by Anonymous Coward · · Score: 0

    The effect has been quite noticable on the Pokey the Penguin mirrors!

    http://www.yellow5.com/pokey

    HOORAY

  2. Slashdot Effect is a Wired Jargon by gavinhall · · Score: 1
    Posted by hansc:



    Did anyone notice that in the latest issue of Wired, the Slashdot Effect made it in as one of the Wired Jargon terms.

    --
    Proud member of SVLUG
  3. Its the Lemming Effect, kids... by Anonymous Coward · · Score: 0
    So what's the big deal?

    Just post a link to something that is mildly interesting to a lot of people with nothing better to do than to click on links and chant "Me Too", "Microsoft is at fault", "Linux Rules," "RedHat sucks", "RMS is a God", and the hits will come flooding in.

    If there is something unpredictable or surprising about this, please let me know ASAP.

  4. Completely off topic, but WTH by Anonymous Coward · · Score: 0

    Add one more Linux user to the list! I just got here on my newly-installed Slackware powered box (2.0.35 kernel). Wahoo!

  5. paradox? by Anonymous Coward · · Score: 0

    Would this not be a paradox? The site publishes the results of the slashdot effect and will in turn receive another example of said effect.

    Ive been doing psychology all day, if Im way off... sorry. :)

  6. /. effect by tgd · · Score: 1

    Even casual references to a website on slashdot generates a noticeable jump in hits on a server. On Friday I mentioned the autoLinux project I was working on, and had 2,500 visitors within two or three hours of the post, and it wasn't even a featured story, just a url I mentioned in the comment.

    I don't recall seeing things on any of those papers mentioned though, so I'm wondering what kind of a load a server gets in the case of the stories that really catch people's attention. 100 hits per minute is pretty low, even if you're going to a site doing dynamic content. I'm wondering what sort of server hardware/software is being used on sites that have real problems as a result of the slashdot effect.

    100 hits per minute of files that take more than a dozen seconds or so to download could bring servers down that run Apache and have limits on the number of children they can spawn. (150 default?)

    My guess is its large numbers of modem users not large numbers of hits that really causes the /. effect.

    Maybe a slashdot poll asking what speeds people view slashdot at?

    (the URL for autoLinux is http://www.bangsplat.org/autolinux for anyone interested who missed it before...)

  7. Steven Adler by Zoyd · · Score: 1

    I've been wondering what he's been up to after getting kicked out of Guns 'N Roses ten years ago!

  8. effect documentation by Anonymous Coward · · Score: 0

    I just did a search on search.com, and it turned up over 13 million hits for slashdot effect. Most of them from Slashdot's own pages.

    But top of their list was nonresponsive link alleging an update to the Jargon File.

    A Google search (naturally) turned out more interesting leads...

  9. People with too much time on their hands... by mholve · · Score: 1

    I think would've been a better title for this.

    1. Re: People with too much time on their hands... by Anonymous Coward · · Score: 0

      /* Sorry but this is serious. If you look at research papers, you'll discover too many people are assuming constant
      hit rate (or slowly variating during the day). Then they design systems, implement them, and when they finally
      test it in Real World, their systems fail, sometimes miserably. */

      You're right, this is a problem. At my school (Carnegie Mellon), they implemented an Online Class Registration system (which I will call OLR) Different classes registered on consecutive days (i.e. seniors then juniors then sophomores then freshmen). Registration went from 6am to 10pm on each day. The first two semesters this was used, the system was brought to its knees at, you guessed it, 6:00:01 a.m.

      The press release noted "We did not expect large numbers of students to use the system immediately at 6am" and "We more or less assumed that students would distribute themselves normally throughout the day." Just a note that class space is highly competetive and limited. This with a population of some 8000 students with around 2000 registering each day.

  10. The Slashdot Effect by Anonymous Coward · · Score: 0

    A while ago I posted a link on Slashdot to a page on my web site, hosted by a 'virtual hosting' company. My site is allowed 1 gig of bandwidth per month, and the /. effect caused my usage to go to 2 gigs for that month (although it happened in the 2 days that the article was on slashdot), so I ended up paying extra that month. Thanks guys ;)

  11. Its the Lemming Effect, kids... by Anonymous Coward · · Score: 0

    I think the point isn't that it is surprising or anything, at least not to anyone here. The point was that someone actually documented and graphed it out in a semi-controlled environment to get the results.

  12. paradox? by swingkid · · Score: 1

    more like self-fulfilling prophecy

  13. Nice to know by Anonymous Coward · · Score: 0

    I was just wondering recently how much traffic the slashdot effect really would bring, and how much I would be able to handle with my current bandwidth.

    On a side note, a month ago when the Xmas tree with controllable lights was posted, I had the 2nd comment, after which slashdot when down for a few hours. Anyways, from about 6 PM that evening til 12 PM I recieved 300 hits on my site, which has a lamp you can turn on and off. Had my site and slashdot been stable for the whole day, I probably would have gotten at least twice that many hits, maybe 3x, and that was a slow day, being Xmas and all. :)

    -Paul Mathis
    restil@alignment.net

    http://www.alignment.net/~restil/spy.html in case you want to play with the lamp again. :)

  14. You forgot: I am a Troll F*ckWad by Anonymous Coward · · Score: 0


    Actually, I agree with you somewhat. I just
    wanted to use the above mentioned F word
    once today.

  15. Its the Lemon Effect, kids... by Anonymous Coward · · Score: 0

    Instead of someone being god, or this or that sucks. Why not put it down as simple human curiosity?

  16. ----------- by pez · · Score: 1

    all i know is, i feel so violated, using us a pawns in his papers :)%)

  17. Newbie question - how do you analyze? by Hall · · Score: 1
    Quite simply, how do you analyze or even get the data that tells this information?

    I've looked around for this but haven't found anything... Do you have to interpret it from Apache's "access_log" file?

    Thanks for any help

  18. There is no such thing as the /.-effect by Anonymous Coward · · Score: 0

    Get it into your thick heads! I dare you to /. our server! HIT ME FUCKWAD

  19. What hubris by Weasel+Boy · · Score: 1

    Flame on [dons asbestos gloves]: I hate to be a grump, but what you folks are self-congratulatorily calling the "Slashdot Effect" has been known on the Net since well before /. came into existence. Before WWW came into existence, even.

    Today's lesson: Just because you though of a cute new name for it doesn't mean you're the first to discover it.

    Okay, flame off. I don't blame you folks personally. On the whole, the mainstream press is MUCH WORSE about this than /.'ers. Wonder if that's because they don't even understand what they're reporting? ... Hmm, must ponder.

  20. Always found it odd... by inkless1 · · Score: 1

    that Slashdot wasn't effected by the ./ effect...;)

  21. Newbie question - how do you analyze? by Stephan+Schulz · · Score: 1

    Yes. Or rather, you write a program that does it. Wannabe hackers use Perl, real hackers use AWK, and real programmers use Fortran-58 ;-)

    --

    Stephan

  22. Did Slashdot.org ever ... by Pig+Hogger · · Score: 1

    Did SLASHDOT.ORG ever fell victim to it's own Slashdot effect???
    -- ----------------------------------------------
    Vive le logiciel... Libre!!!

  23. A Note From Mom by Anonymous Coward · · Score: 0



    Hello Kids,

    My name is Martha Malda. I am Rob's Mother. I never thought that it would
    come to this, but I just can't go on. I have perpetuated a terrible hoax on
    all of you. You must know that I did it all for the sake of my little Robby.
    Years ago when he told me about this new web site of his, I thought to myself:
    "Oh Martha, what has Robby gone and done now. We can't keep this quiet."
    You see, Robby has always been a problem child. But up until now we have
    always been able to keep his troubles within the family. And when I say
    the family, I mean the Microsoft Family. Robby's heritage is somewhat
    privileged in that regard. Although we are not exactly sure who the father is, I
    have narrowed the likely candidates down to one of the Family's top executives.
    Of course, you know who I am hoping for, but from recent DNA tests
    point more in the direction of a certain rotund President whose name I
    will not mention. Oh gosh, I have wandered a bit. I shouldn't be talking about
    that. Let me get back to my original intent of this message. I am writing to deeply
    apologize to you, the kind hearted, impoverished fanactical denizens of Robby's
    cute web site project. You see, the so-called Slash Dot effect is a facade, a
    fake, a phony, a total sham. To protect and encourage Robby's activities,
    we here at the Family have developed a cluster of NT machines (the Slash Pack),
    the sole purpose of which is to monitor Robby's site, detect when he or any of his
    little buddies posts a story, and then send out millions of illusionary http
    connections. Until now we have been willing to continue this illusion for
    Robby's benefit. Unfortunately, it seems to be really getting out of hand.
    Robby is getting older now. It is time to leave his Toys behind. We have
    enrolled him full time in a wide and comprehensive slate of MSCE classes.

    I thank you all for your time and assistance in what has been a very helpful
    learning experience for my son. As of 12 noon today this site will be
    discontinued. If you would like to follow Robby in the future, I suggest
    that you purchase our professional version of Microsoft Office 2000.
    Both Robby and I will be appearing along side your faithful friend "The
    Paper Clip" as helpful aids in diagnosing Windows Protection Errors.

    Bye for now.

  24. slashdot EFFECT? by Anonymous Coward · · Score: 0

    more like slashdot SHOCKWAVE!! :-)))

  25. Its the Lemming Effect, kids... by Thomas+Charron · · Score: 1

    And, by you being here, and posting such a message, appear to be one of what you describe..

    --
    -- I'm the root of all that's evil, but you can call me cookie..
  26. I can attest to the existence... by Chris+Johnson · · Score: 1

    ...of a MacInTouch Effect! o_O
    I managed to get mentioned in a story about ClearType, and I'm telling you, my site got hammered. Much worse than anything I've ever seen from Slashdot, but I've never been in a _story_ in Slashdot, only comments, and that may be a difference. I figure if I can survive the MacInTouch effect, I could also survive a Slashdot Effect, as they appear to be roughly comparable and it depends on how obligatory the link seems. Many people wanted to read about ClearType issues- indeed, it may have been very indirectly Slashdottish, as I believe Slashdot was mentioning the MacInTouch Cleartype story. Mind you, MacInTouch is analogous to Slashdot and used to that kind of traffic...

  27. Smartypants by Weasel+Boy · · Score: 1

    After a brief discussion with my trousers, I find that, indeed, they had considered this angle, whereas I had not. I must conclude that, since my pants are smarter than I, they are indeed smartypants (unless I am myself stupid, a consideration upon which I prefer not to dwell).

  28. The name is "flash crowd" by Anonymous Coward · · Score: 0

    That term was invented by Larry Niven in a short SF story (possibly of the same name?) back in the 1960s or early 1970s.

    His usage was in the context of a society where teleportation exists and is as common as the telephone. When some interesting event happens someplace (and hits the news), a "flash crowd" happens as folks teleport in from all over.

    The analogy with slashdotters virtually teleporting via the web is obvious.

  29. Geez... by marcus · · Score: 1

    ...I thought RM's only problem was clothes?!?!?

    --
    Good judgement comes from experience, and experience comes from bad judgement.
    - W. Wriston, former Citibank CEO
  30. Same For My Site by Peale · · Score: 1

    My site's in my sig, and whenever I post a comment, sure enough, there's /.ers that show up.


    Northeast USA Computer Show Schedule

  31. A Note From Mom by Anonymous Coward · · Score: 0

    Verry cute....