Re: [LARTC] HZ to be 1000 - 2.5.25 may have this

2002-07-10 Thread Werner Almesberger

Adam B. Fineberg wrote:
 Can this be done in 2.4.18 by changing HZ in include/asm-i386/param.h to 
 1000?

Yes.

 Would anything else need to be changed, like CLOCKS_PER_SEC (also 
 in param.h)?

Hmm, CLOCKS_PER_SEC doesn't look right, particularly if you look at
include/asm-ia64/ia32.h:IA32_CLOCKS_PER_SEC. It's only used for some
obscure parameter-passing mechanism in ELF, so the damage should be
quite limited. (I.e. I've never noticed anything going wrong when
changing HZ, and I didn't realize the CLOCKS_PER_SEC dependency
until now.)

- Werner

-- 
  _
 / Werner Almesberger, Buenos Aires, Argentina [EMAIL PROTECTED] /
/_http://icapeople.epfl.ch/almesber/_/
___
LARTC mailing list / [EMAIL PROTECTED]
http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/



RE: [LARTC] HZ to be 1000 - 2.5.25 may have this

2002-07-10 Thread CIT/Paul

HZ is set to 100 in that patch.. :


-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
On Behalf Of Dmitriy
Sent: Wednesday, July 10, 2002 1:30 AM
To: [EMAIL PROTECTED]
Subject: Re: [LARTC] HZ to be 1000 - 2.5.25 may have this

On Tue, Jul 09, 2002 at 06:17:10PM -0700, Adam B. Fineberg wrote:
 bert hubert wrote:
 
 From lwn.net:
 
 The current development kernel remains 2.5.24. Linus has not released
any
 kernels - or surfaced on the linux-kernel mailing list - since before
OLS
 and the Kernel Summit. Some patches are beginning to show up in his
 BitKeeper tree, however; they include some SCSI updates, an NTFS
update,
 and, interestingly, a change of the internal x86 clock frequency to
1000 
 Hz.
 
 1000Hz would mean great things for us shaping people!
  
 
 
 Can this be done in 2.4.18 by changing HZ in include/asm-i386/param.h
to 
 1000? Would anything else need to be changed, like CLOCKS_PER_SEC
(also 
 in param.h)?
Try to download this url:
http://www.ibiblio.org/gentoo/distfiles/linux-gentoo-2.4.19-crypto-r7.pa
tch.bz2

This is gentoo Linux patch to 2.4.18, which adds Low Latency Scheduling,
Preemptible Kernel, rmap, Ingo Molnar o(1) scheduler and by default it
has
HZ equal to 1000. Also there is XFS, Grsec and lots of other usefull
staff.

Patch is about 6.4Mbyte.
Luck.
 
 Best regards,
 Adam Fineberg
 [EMAIL PROTECTED]
 
 ___
 LARTC mailing list / [EMAIL PROTECTED]
 http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
 
-- 
With Respect
Dmitriy Kuznetsov
___
LARTC mailing list / [EMAIL PROTECTED]
http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/

___
LARTC mailing list / [EMAIL PROTECTED]
http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/



Re: [LARTC] HZ to be 1000 - 2.5.25 may have this

2002-07-10 Thread Adam B. Fineberg




CIT/Paul wrote:

  HZ is set to 100 in that patch.. :

  
  


  
  Try to download this url:
http://www.ibiblio.org/gentoo/distfiles/linux-gentoo-2.4.19-crypto-r7.pa
tch.bz2
  


Acutally in this patch the clock rate becomes configurable. HZ is set to
CONFIG_JIFFIES which defaults to 1000.

Best regards,
Adam Fineberg
[EMAIL PROTECTED]




Re: [LARTC] HZ to be 1000 - 2.5.25 may have this

2002-07-09 Thread Adam B. Fineberg

bert hubert wrote:

From lwn.net:

The current development kernel remains 2.5.24. Linus has not released any
kernels - or surfaced on the linux-kernel mailing list - since before OLS
and the Kernel Summit. Some patches are beginning to show up in his
BitKeeper tree, however; they include some SCSI updates, an NTFS update,
and, interestingly, a change of the internal x86 clock frequency to 1000 Hz.

1000Hz would mean great things for us shaping people!
  


Can this be done in 2.4.18 by changing HZ in include/asm-i386/param.h to 
1000? Would anything else need to be changed, like CLOCKS_PER_SEC (also 
in param.h)?

Best regards,
Adam Fineberg
[EMAIL PROTECTED]

___
LARTC mailing list / [EMAIL PROTECTED]
http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/



[LARTC] HZ to be 1000 - 2.5.25 may have this

2002-07-04 Thread bert hubert

From lwn.net:

The current development kernel remains 2.5.24. Linus has not released any
kernels - or surfaced on the linux-kernel mailing list - since before OLS
and the Kernel Summit. Some patches are beginning to show up in his
BitKeeper tree, however; they include some SCSI updates, an NTFS update,
and, interestingly, a change of the internal x86 clock frequency to 1000 Hz.

1000Hz would mean great things for us shaping people!

Also, on a related note, see this on 'firm timers':
http://www.cse.ogi.edu/~luca/firm.html
More on http://www.cse.ogi.edu/~ashvin/

Thanks for Erik Walthinsen for pointing this out .

Regards,

bert

-- 
http://www.PowerDNS.com  Versatile DNS Software  Services
http://www.tk  the dot in .tk
http://lartc.org   Linux Advanced Routing  Traffic Control HOWTO
___
LARTC mailing list / [EMAIL PROTECTED]
http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/