Re: [PATCH] Dynamic tick for x86 version 050609-2

Valdis.Kletnieks_at_vt.edu
Date: 06/13/05

  • Next message: Willy Tarreau: "Re: [PATCH] fix small DoS on connect() (was Re: BUG: Unusual TCP Connect() results.)" 
    To: Tony Lindgren <tony@atomide.com>
Date:	Mon, 13 Jun 2005 00:54:55 -0400

    On Thu, 09 Jun 2005 21:30:18 PDT, Tony Lindgren said:

    > Thanks for all the comments. Here's an updated dyntick patch.

    Patches with 3 minor rejects against -rc6-mm1, boots, and seems to work well on
    my Dell Latitude C840 laptop - although running at full load with seti@home
    causes the expected 250 timer ticks/sec, running a mostly-idle X session only
    gets about 117, and having xmms and a few other things running it hits about
    170 tics/sec. I've had the CPU speed bounce between 1.2G and 1.6G a few times
    and it didn't seem to blink either. Even NTP is happy with what it sees.. ;)

    Need to rebuild with CONFIG_HZ=1000 and see what it does, and see what it does
    to actual power consumption.

    Minor nit: The implementation of /sys/devices/system/timer/timer0/dyn_tick_state
    violates the one-value-per-file rule for sysfs. I suspect this needs to
    become a directory with 3-4 files in it, each containing one value.

    -
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