Do you have sysstat package installed?
http://perso.orange.fr/sebastien.godard/
If so, please give us the results of: mpstat
A 1Khz kernel should show a very low intr/s.
=)
Theo Macris wrote:
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ok...so how do I find out what mine currently is? I have done some research
and some are saying CentOS default is 1k others are saying default is 250. I
have no entry in my config file so is there any other way to query this
info?
-Theo
On 10/4/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
1khz for Linux is superior to the default (often 250 hz). You can
certainly feel it in online in a game server with a machine that is set
to 1Khz for the kernel. There is no doubt about that. Even TTimo (id
Software Linux developer) advocates 1Khz kernel for game servers.
Mariusz Zieliński wrote:
On Wednesday 03 of October 2007 20:17:45 Theo Macris wrote:
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CentOS4 x86
CONFIG_HZ....That does not seem to be a part of my config.
[EMAIL PROTECTED] boot]$ cat config-2.6.9-55.plus.c4smp|grep -i hz
CONFIG_MACHZ_WDT=m
I did come up with some "similar" stuff via freq:
[EMAIL PROTECTED] boot]$ cat config-2.6.9-55.plus.c4smp|grep -i freq
# CPU Frequency scaling
CONFIG_CPU_FREQ=y
# CONFIG_CPU_FREQ_PROC_INTF is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=m
CONFIG_CPU_FREQ_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_ONDEMAND=m
# CONFIG_CPU_FREQ_24_API is not set
CONFIG_CPU_FREQ_TABLE=y
# CPUFreq processor drivers
CONFIG_X86_ACPI_CPUFREQ=y
# CONFIG_X86_ACPI_CPUFREQ_PROC_INTF is not set
# Wireless 802.11 Frequency Hopping cards support
Forget all crap about kernel time resolution having anything to do with
application performance. Anything above 100Hz may (because of linux
scheduler
inefficiency) have good influence on desktop computer and not on server
app.
Higher timer means more frequent process rescheduling and more
involuntary
context switches and that means lower performance.
All you can do is wait for better process scheduler inside linux kernel.
--
Mariusz Zielinski
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