Re: [PATCH] i386: Selectable Frequency of the Timer Interrupt

Lee Revell wrote:

On Wed, 2005-07-13 at 14:16 -0700, Chris Wedgwood wrote:

Both can be detected from you .config and we could see HZ as needed
there and everyone else could avoid this surely?

Does anyone object to setting HZ at boot?  I suspect nothing else will
make everyone happy.

This will really mess up the jiffie_to_* and *_to_jiffie conversions. They rely in a rather large way on the complier doing all the heavy lifting. If HZ is a variable we introduce a LOT of runtime overhead here. (Try make kernel/itimer.i and look for jiffies_to_t* and friends.)

--
George Anzinger   [email protected]
HRT (High-res-timers):  http://sourceforge.net/projects/high-res-timers/
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

---

• References:
  • Re: [PATCH] i386: Selectable Frequency of the Timer Interrupt
    • From: George Anzinger <[email protected]>
  • Re: [PATCH] i386: Selectable Frequency of the Timer Interrupt
    • From: Vojtech Pavlik <[email protected]>
  • Re: [PATCH] i386: Selectable Frequency of the Timer Interrupt
    • From: Bill Davidsen <[email protected]>
  • Re: [PATCH] i386: Selectable Frequency of the Timer Interrupt
    • From: David Lang <[email protected]>
  • Re: [PATCH] i386: Selectable Frequency of the Timer Interrupt
    • From: Vojtech Pavlik <[email protected]>
  • Re: [PATCH] i386: Selectable Frequency of the Timer Interrupt
    • From: Linus Torvalds <[email protected]>
  • Re: [PATCH] i386: Selectable Frequency of the Timer Interrupt
    • From: Lee Revell <[email protected]>
  • Re: [PATCH] i386: Selectable Frequency of the Timer Interrupt
    • From: Dmitry Torokhov <[email protected]>
  • Re: [PATCH] i386: Selectable Frequency of the Timer Interrupt
    • From: Lee Revell <[email protected]>
  • Re: [PATCH] i386: Selectable Frequency of the Timer Interrupt
    • From: Andrew Morton <[email protected]>
  • Re: [PATCH] i386: Selectable Frequency of the Timer Interrupt
    • From: Chris Wedgwood <[email protected]>
  • Re: [PATCH] i386: Selectable Frequency of the Timer Interrupt
    • From: Lee Revell <[email protected]>

• Prev by Date: Re: Linux v2.6.13-rc3
• Next by Date: Problem: GRE tunnel uses wrong SRC in IP packet.
• Previous by thread: Re: [PATCH] i386: Selectable Frequency of the Timer Interrupt
• Next by thread: Re: [PATCH] i386: Selectable Frequency of the Timer Interrupt
• Index(es):
  • Date
  • Thread

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]