drago01 at gmail.com
Sat Nov 21 18:57:06 UTC 2009
On Sat, Nov 21, 2009 at 6:41 PM, Adam Williamson <awilliam at redhat.com> wrote:
> On Sat, 2009-11-21 at 10:33 -0700, stan wrote:
>> I eliminate all unnecessary functionality, and tune for my hardware. I
>> think the main things that fixed the problem were eliminating the lower
>> 128K of memory from user space (what a kludge!), making the desktop
>> preemptable, and raising the tick frequency to 1000. I eliminate a
>> On the other hand it could be like that old joke about the tigers.
>> A passerby in a city sees a man sprinkling flour in intricate patterns
>> around his house. He asks him what he is doing. The flour sprinkler
>> says, "I'm putting in place tiger repellant." The passerby says,
>> "There are no tigers around here!" The flour sprinkler says,
>> "Effective, isn't it."
> Exactly. For a start, Fedora's default kernel config is tickless (NOHZ
> is enabled) by default.
That does not mean that the HZ setting has no effect ;)
The kernel is not fully tickless yet, regardless we already have
CONFIG_HZ=1000 and CONFIG_HZ_1000=y set ;)
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