Evan Martin (evan) wrote in evan_tech,
Evan Martin

flush/clear the linux buffer/page cache

To reset your disk caches on recent Linuxes, see this page. Briefly, to drop everything, echo 3 > /proc/sys/vm/drop_caches . You can run "sync" first to flush dirty pages.

The page warns to run "sync" first, which seems a little scary; what I really want is for it to just drop non-dirty pages, so I can benchmark something with a "cold" disk.

(Posting this in part because it took me a while to find it, so hopefully that subject will help search engines in the future.)

PS: been playing with git. Holy hell is it fast.
Tags: howto, linux

  • more on bug tracking; distributed editing

    A few separate posts, all in the same area. 1) Most (all?) the distributed bug tracking software I've glanced at stores bugs in a directory, one…

  • dvcs and offline

    I got a couple of comments on that previous post that betray a bit of a misunderstanding about how collaborative projects work in the presence of…

  • distributed bug tracking

    Distributed bug tracking is the natural extension of distributed version control. Aside from the normal benefits of distributed version control, like…

  • Post a new comment


    default userpic
    When you submit the form an invisible reCAPTCHA check will be performed.
    You must follow the Privacy Policy and Google Terms of use.