Results 1 to 6 of 6

Thread: Looking for a performance measuring app.

  1. #1

    Default Looking for a performance measuring app.

    openSUSE 12.3
    KDE 4.10.5 r1

    Are there any apps in the standard distr that measure performance ?
    If not, then 3rd party ?

    I am about to do a memory upgrade and I was wanting to see if it makes any difference.

    Thanks
    openSUSE 13.2

  2. #2
    Join Date
    Jun 2008
    Location
    Podunk
    Posts
    26,682
    Blog Entries
    15

    Default Re: Looking for a performance measuring app.

    Hi
    Top or htop will show your memory usage...? free is another. At the end of the day, it will only be the user that will notice the improvement

    How much memory do you currently have and what are you planning to upgrade to? Is the system swapping alot, if so tweaking the swappiness may help.
    Cheers Malcolm °¿° SUSE Knowledge Partner (Linux Counter #276890)
    SUSE SLE, openSUSE Leap/Tumbleweed (x86_64) | GNOME DE
    If you find this post helpful and are logged into the web interface,
    please show your appreciation and click on the star below... Thanks!

  3. #3

    Default Re: Looking for a performance measuring app.

    Quote Originally Posted by malcolmlewis View Post
    Hi
    Top or htop will show your memory usage...? free is another. At the end of the day, it will only be the user that will notice the improvement

    How much memory do you currently have and what are you planning to upgrade to? Is the system swapping alot, if so tweaking the swappiness may help.
    It has 2gb now and expandable to 4, at least that's what the Toshiba site says.

    That's interesting about the swappiness and I would like to do some reading on it. The swap file size is whatever the default is at installation time.
    openSUSE 13.2

  4. #4
    Join Date
    Jun 2008
    Location
    Podunk
    Posts
    26,682
    Blog Entries
    15

    Default Re: Looking for a performance measuring app.

    Quote Originally Posted by hextejas View Post
    It has 2gb now and expandable to 4, at least that's what the Toshiba site says.

    That's interesting about the swappiness and I would like to do some reading on it. The swap file size is whatever the default is at installation time.
    Hi
    Ahh that's right, there has been discussion on that

    You should notice a difference if 4GB will fit, but will probably still use some swap. Runnning vmstat and iostat will show info as well.

    What type of drive do you have installed (model number)?
    Cheers Malcolm °¿° SUSE Knowledge Partner (Linux Counter #276890)
    SUSE SLE, openSUSE Leap/Tumbleweed (x86_64) | GNOME DE
    If you find this post helpful and are logged into the web interface,
    please show your appreciation and click on the star below... Thanks!

  5. #5

    Default Re: Looking for a performance measuring app.

    Well, that was painless. The old sticks slid out and the new ones slid right in and I held my breath as it booted up.
    Uneventful and I swear that it's faster.
    I wrote some top numbers down before and after

    Kib mem Before After
    tot 1792972 3795388
    used 1172644 770345
    free 619959 3030096
    buffers 22644 31746
    Kib Swap Before after
    tot 2103292 2103292
    used 562316 0***
    free 1540976 2103292
    cached 285552 345824
    *** I think this means no swapping which is mega cool.
    openSUSE 13.2

  6. #6

    Default Re: Looking for a performance measuring app.

    There is a pretty comprehensive performance measuring application here

    lbench - kornelix

    It can even be used to check cpu cooling by giving all cores a lot of work to do and seeing if thermal throttling kicks in.

    Increasing memory doesn't really fit in with this sort of thing though. It depends on what is being run on the machine. The swap partition is used if there isn't enough memory available. One way of checking that is

    Code:
    john@linux-448o:~> vmstat
    procs -----------memory---------- ---swap-- -----io---- -system-- -----cpu------
     r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy id wa st
     1  0      0 19713276 217688 1586480    0    0     1     2    7    7  2  0 98  0  0
    john@linux-448o:~>
    See man vmstat for more info but basically si and so show swap usage.

    John
    -

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •