[Bug 170868] New: 'iotop -o' to track kde process' io and improve hd powersaving

BrĂ¡ulio Barros de Oliveira brauliobo at gmail.com
Thu Sep 11 17:09:17 BST 2008


http://bugs.kde.org/show_bug.cgi?id=170868

           Summary: 'iotop -o' to track kde process' io and improve hd
                    powersaving
           Product: kde
           Version: unspecified
          Platform: unspecified
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: unassigned-bugs at kde.org
        ReportedBy: brauliobo at gmail.com


Version:           unknown (using 4.1.65 (KDE 4.1.65 (KDE 4.2 >= 20080903)),
compiled sources)
Compiler:          gcc
OS:                Linux (x86_64) release 2.6.26-ARCH

hello folks

i'm using 'iotop -o' to track the KDE process which are doing hd access with no
user interface interaction, which probably indicates waste of power.

according to my results these kde process were the ones which most had shown
this behaviour:
knotify4
kde4
kwin
(sometimes konsole)

if you have set APM for your hd, you'll probably hear many HD clicks which are
the result of pdflush writing to disk as process had asked for it. 'hdparm -B
128 /dev/sda' will set it.

could someone cc these to the process' respectives mailing lists?

regards


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