06-12-2009
I'm not aware of 1.35 Ghz UltraSPARC IV+.
If you mean UltraSPARC IV+ at 1.5 Mhz, I would expect a gain ranging from ~0% if the application isn't CPU bounded to ~30% if it is.
If the older CPU is actually an UltraSPARC IV at 1.35 Ghz, the gain might be larger than 45% as the newer CPU has several architecture enhancements including the support of a four level and larger internal cache.
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LEARN ABOUT SUSE
cpufreq-set
cpufreq-set(1) cpufreq-set(1)
NAME
cpufreq-set - A small tool which allows to modify cpufreq settings.
SYNTAX
cpufreq-set [options]
DESCRIPTION
cpufreq-set allows you to modify cpufreq settings without having to type e.g. "/sys/devices/system/cpu/cpu0/cpufreq/scaling_set_speed" all
the time.
OPTIONS
-c --cpu <CPU>
number of CPU where cpufreq settings shall be modified.
-d --min <FREQ>
new minimum CPU frequency the governor may select.
-u --max <FREQ>
new maximum CPU frequency the governor may select.
-g --governor <GOV>
new cpufreq governor.
-f --freq <FREQ>
specific frequency to be set. Requires userspace governor to be available and loaded.
-r --related
modify all hardware-related CPUs at the same time
-h --help
Prints out the help screen.
REMARKS
Omitting the -c or --cpu argument is equivalent to setting it to zero.
The -f FREQ, --freq FREQ parameter cannot be combined with any other parameter except the -c CPU, --cpu CPU parameter.
FREQuencies can be passed in Hz, kHz (default), MHz, GHz, or THz by postfixing the value with the wanted unit name, without any space (fre-
quency in kHz =^ Hz * 0.001 =^ MHz * 1000 =^ GHz * 1000000).
On Linux kernels up to 2.6.29, the -r or --related parameter is ignored.
FILES
/sys/devices/system/cpu/cpu*/cpufreq/
/proc/cpufreq (deprecated)
/proc/sys/cpu/ (deprecated)
AUTHORS
Dominik Brodowski <linux@brodo.de> - author
Mattia Dongili<malattia@gmail.com> - first autolibtoolization
SEE ALSO
cpufreq-info(1)
Mattia Dongili 0.1 cpufreq-set(1)