[lkml]   [1998]   [Feb]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: New Feature Idea: Compress swap file
    At 18:12 19/02/98 -0800, ;The Doctor What wrote:
    What about this:

    - Our objective is performance, by reducing the amount of read/write to
    the swap;
    - Compress by pages and write the compressed pages in 4k pages, possibly
    WASTING space
    in each page.. (it's ok);
    - But you can't guarantee that we can compress all cases. Make a map of
    the pages
    compressed/not-compressed. A 200MB swap will use 6400 bytes of memory
    with compressed/
    not compressed bits;
    - We are not doing ALL, but's is simple.
    - We can minimize the time wasted on compression by not compress code
    pages, only
    data pages. What's the (normal expected) relation of code/data pages?

    >Can't optimize this by compressing on a per page basis? I'm not overly
    >familiar with the theory, but it seems that there is less to compress
    >(yeah, the compression isn't as good) and less for the CPU to worry about.
    >Hmmm.... If only there was intellegent hardware that could do this for

    []'s, Sergio Bruder.
    ----------------------------------------------+ | |

    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to

     \ /
      Last update: 2005-03-22 13:41    [W:0.021 / U:16.176 seconds]
    ©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site