DragonFly BSD
DragonFly kernel List (threaded) for 2004-07
[Date Prev][Date Next]  [Thread Prev][Thread Next]  [Date Index][Thread Index]

Re: Scheduler patch 03 available for testing

From: Matthew Dillon <dillon@xxxxxxxxxxxxxxxxxxxx>
Date: Sun, 25 Jul 2004 11:37:22 -0700 (PDT)

:>      Use 'systat -vm 1' or 'vmstat 1' in an xterm to observe paging activity.
:>      If you aren't paging there could still be a scheduling issue.
:Hi Matt ;]
:i runned vmstat and indeed it is page faulting but i don't now what the
:expected values are. when i'm just running X page fault are ~ 1000, when
:the box is busy compiling faults are 8000-20000 with peaks at 25000.
:what i noticed is that if i dont use the -j10 the box remains responsive.
:i dont think its a memory issue, i've got 512 meg in this box.

    Well, the fields you want to look at are 'pi' and 'po', which means
    page-ins and page-outs, and also 're' which means page reclaims.

    I suggest playing around with it for a while on a normally running system
    just to learn the ropes of the VM system statistics and how they relate
    to system responsiveness.

					Matthew Dillon 

[Date Prev][Date Next]  [Thread Prev][Thread Next]  [Date Index][Thread Index]