Messages in this thread |  | | | Date | Thu, 7 May 2009 21:24:28 +0100 | | From | Alan Cox <> | | Subject | Re: [PATCH] x86: Reduce the default HZ value |
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> Reducing the number of application interruptions by a factor of 10 is not > pointless. The lower HZ becomes the more useless it will become for the > users of jiffies because they will have to create timers and use time > intervals if the HZ intervals become too large.
More like "the more your performance goes down the toilet" - as everything is rounded up.
If you want to follow that argument set the default HZ to 1. Then see if it has any side effects.
Given HZ=1 doesn't work, its fairly clear that all you are doing is frobbing pointlessly with defaults that have been evolved over about 15 years because they work.
Whereas if you make jiffies jiffies() and it reads a timer it puts the pain in the right place and you can begin to make actual progress to making things work properly.
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