HZ=100 ?? vmware

2004-10-14 Thread dick hoogendijk
Okey, I found out I need to increase the HZ=100 default in the kernel
config to a higher number. I also understand it decreases  system
response times.

So, what I need to know is the lowest setup for HZ=??? to be able to run
vmware3 in full screen. I got to get rid of the rtc: 100  kern.hz
prompt.

Google tells me to increase to HZ=1200 but is this not too high?

-- 
dick -- http://www.nagual.st/ -- PGP/GnuPG key: F86289CE
++ Running FreeBSD 4.10 ++ Debian GNU/Linux (Woody)
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Re: HZ=100 ?? vmware

2004-10-14 Thread Subhro
On Thu, 14 Oct 2004 19:57:17 +0200, dick hoogendijk [EMAIL PROTECTED] wrote:

snip
 Google tells me to increase to HZ=1200 but is this not too high?

1000 works nicely for me.

Regards
S.

-- 
Subhro Sankha Kar
School of Information Technology
Block AQ-13/1 Sector V
ZIP 700091
India
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Re: HZ=100 ?? vmware

2004-10-14 Thread jason
dick hoogendijk wrote:
Okey, I found out I need to increase the HZ=100 default in the kernel
config to a higher number. I also understand it decreases  system
response times.
So, what I need to know is the lowest setup for HZ=??? to be able to run
vmware3 in full screen. I got to get rid of the rtc: 100  kern.hz
prompt.
Google tells me to increase to HZ=1200 but is this not too high?
 

In man polling a kernel config of HZ=1000 is the default if you want to 
use polling.  I am not sure, but if vmware is using the same HZ setting  
as polling does then 1200 is not too high.  If I understand it right, 
the HZ setting tells stuff how often to checkin to see if work needs 
doing.  100hz would be way too low.  Every 100hz on say a 2ghz machince 
would requirer you to spend a lot of time on something every 
sec(2billion/100 per sec if I am right).  Maybe nothing because you are 
delaying some programs that you want to execute, not pause and wait 
every 100hz.  This would most likely slow everything down, a higher 
number would make things smoother and faster, but only to a point.  Its 
kind of complicated, but when you find the right spot(somewhere in the 
middle) everything is good.  If you had a 4ghz machince you may want an 
even larger number.  If I am wrong I am sure there will be a followup 
shortly.

Jason
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Re: HZ=100 ?? vmware

2004-10-14 Thread Phusion
Hi, I run VMware3 on FreeBSD 5.2.1 fine. I use HZ=1200, and that seems
to work perfect. I've tested and found that 1000, and even 1100 still
gave me rtc: 100  kern.hz messages. When I set HZ=1200 I got no
more of these messages.


On Thu, 14 Oct 2004 16:25:58 -0400, jason [EMAIL PROTECTED] wrote:
 dick hoogendijk wrote:
 
 Okey, I found out I need to increase the HZ=100 default in the kernel
 config to a higher number. I also understand it decreases  system
 response times.
 
 So, what I need to know is the lowest setup for HZ=??? to be able to run
 vmware3 in full screen. I got to get rid of the rtc: 100  kern.hz
 prompt.
 
 Google tells me to increase to HZ=1200 but is this not too high?
 
 
 
 In man polling a kernel config of HZ=1000 is the default if you want to
 use polling.  I am not sure, but if vmware is using the same HZ setting
 as polling does then 1200 is not too high.  If I understand it right,
 the HZ setting tells stuff how often to checkin to see if work needs
 doing.  100hz would be way too low.  Every 100hz on say a 2ghz machince
 would requirer you to spend a lot of time on something every
 sec(2billion/100 per sec if I am right).  Maybe nothing because you are
 delaying some programs that you want to execute, not pause and wait
 every 100hz.  This would most likely slow everything down, a higher
 number would make things smoother and faster, but only to a point.  Its
 kind of complicated, but when you find the right spot(somewhere in the
 middle) everything is good.  If you had a 4ghz machince you may want an
 even larger number.  If I am wrong I am sure there will be a followup
 shortly.
 
 Jason
 
 
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