DeadCell
26-03-2008, 16:42
Google translate:
Hello,
After the RPS 1, based on an Intel low power consumption,
RAM and network with dedicated iSCSI disk, we continue
Innovations with the RPS 2, which enters its beta phase.
The RPS 2-2300 to 2x1.9GHz
With 1GB RAM, the 100Mbps network and 20Gb hard disk iSCSI
24.99Euro for HT / month.
What is innovation?
--------------------------------
AMD has developed a technology that uses less
Electric power when the processor is not in use.
Technologically speaking, Linux has several adjustment programs
To the power of BE-2300 to real demand. The computing power is
Adapted by changing the operating frequency of the processor, live,
Depending on the charge.
The following programs:
# Cat / sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors
OnDemand conservative userspace performance powersave
Choose "performance" which allows for the maximum amount of power:
# Echo performance> / sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
The frequency of the CPU is 2x1.9GHz:
# Grep "^ MHz cpu" / proc / cpuinfo
MHz CPU: 1900,000
MHz CPU: 1900,000
Moving toward "powersave" saving energy (unconditionally):
# Echo powersave> / sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
The frequency of the CPU has to 2x1.00GHz:
# Grep "^ MHz cpu" / proc / cpuinfo
MHz CPU: 1000,000
MHz CPU: 1000,000
Now turn to the "ondemand" which adapts so fast
CPU frequency according to demand (that runs on the
Server):
# Echo ondemand> / sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
Nothing runs on the server and hence the frequency is 2x1GHz.
# Grep "^ MHz cpu" / proc / cpuinfo
MHz CPU: 1000,000
MHz CPU: 1000,000
Start applications:
# Bzip2-linux-2.4.32.tar.bz2 d-c> / dev / null &
[1 4116
# Grep "^ MHz cpu" / proc / cpuinfo
MHz CPU: 1000,000
MHz CPU: 1000,000
[...] 3 seconds later
# Grep "^ MHz cpu" / proc / cpuinfo
MHz CPU: 1900,000
MHz CPU: 1900,000
[...] 15 seconds later
# Grep "^ MHz cpu" / proc / cpuinfo
MHz CPU: 1900,000
MHz CPU: 1900,000
[1] + Done bzip2-linux-2.4.32.tar.bz2 d-c> / dev / null
# Grep "^ MHz cpu" / proc / cpuinfo
MHz CPU: 1800,000
MHz CPU: 1800,000
# Grep "^ MHz cpu" / proc / cpuinfo
MHz CPU: 1000,000
MHz CPU: 1000,000
We can therefore see that when the load was started, the CPU has adapted itself
The frequency of its operations to its maximum and dice it was most needed
It has reduced its frequency.
The "conservative" works like "ondemand" but with a more inertia
Important about starting, but also on the transition to the reduced frequency.
"Userspace 'makes the frequency by software live. This is no longer
Processors who decides but a program that looks at what is happening on the
Server and changes the frequency depending on the needs.
What computing power for what energy-saving?
-------------------------------------------------- -------
The AMD CPU BE-2300 is also a powerful Intel Pentium 2180 ie
Start100M that. Its power consumption is also the same as 2180.
However, when active "ondemand", the server consumes 10% of energy
And less. The Intel also has adaptive technology frequency
Depending on demand, but consumption remains the same. Worse still exactly the
. This is because in AMD, the CPU and memory controller
(Chipset) are one and therefore decreases when the frequency decreases
The frequency of 2. In the case of Intel, only change the CPU frequency.
The chipset continues to operate at its nominal frequency.
10% of energy, is it a lot or not? This is already something of earned during
Almost half the time of a day. Indeed, during the night and
Morning, the demand is not very robust. But it will be very interesting to have
Exact figures depending on the type of application that will run on your
RPS 2. How many hours a day, your 2 RPS works and how to 1.0GHz
1.9GHz? The graphs! Graph! Hmmm ... Then there are those who want to test
The RPS 2? Why not switch to RPS RPS 1 to 2? In less than 3 minutes?
It left for the beta 2 RPS!
We looked 5 beta testers who want to test all the features
Related changeovers of RPS RPS 1 to 2 then to the RPS RPS 1 or 3 depending
's True needs. Then how long in 1.0GHz? And how to 1.9GHz per day
To be listed? Games? Databases? Blogs? Forums? Hmmm ...
The suite on the forum or rps@ml.ovh.net http://forum.ovh.com/forumdisplay.php?f=44
Thanks!
And what result? In terms of saving énrgie, we test the 45nm Intel.
Slightly smaller CPU full Ahead (RPS 3?):
Model name: Intel (R) Core (TM) 2 Duo CPU E8200@2.66GHz
Stepping: 6
MHz CPU: 2648,000
Cache size: 6144 KB
Yours
Octave
Hello,
After the RPS 1, based on an Intel low power consumption,
RAM and network with dedicated iSCSI disk, we continue
Innovations with the RPS 2, which enters its beta phase.
The RPS 2-2300 to 2x1.9GHz
With 1GB RAM, the 100Mbps network and 20Gb hard disk iSCSI
24.99Euro for HT / month.
What is innovation?
--------------------------------
AMD has developed a technology that uses less
Electric power when the processor is not in use.
Technologically speaking, Linux has several adjustment programs
To the power of BE-2300 to real demand. The computing power is
Adapted by changing the operating frequency of the processor, live,
Depending on the charge.
The following programs:
# Cat / sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors
OnDemand conservative userspace performance powersave
Choose "performance" which allows for the maximum amount of power:
# Echo performance> / sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
The frequency of the CPU is 2x1.9GHz:
# Grep "^ MHz cpu" / proc / cpuinfo
MHz CPU: 1900,000
MHz CPU: 1900,000
Moving toward "powersave" saving energy (unconditionally):
# Echo powersave> / sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
The frequency of the CPU has to 2x1.00GHz:
# Grep "^ MHz cpu" / proc / cpuinfo
MHz CPU: 1000,000
MHz CPU: 1000,000
Now turn to the "ondemand" which adapts so fast
CPU frequency according to demand (that runs on the
Server):
# Echo ondemand> / sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
Nothing runs on the server and hence the frequency is 2x1GHz.
# Grep "^ MHz cpu" / proc / cpuinfo
MHz CPU: 1000,000
MHz CPU: 1000,000
Start applications:
# Bzip2-linux-2.4.32.tar.bz2 d-c> / dev / null &
[1 4116
# Grep "^ MHz cpu" / proc / cpuinfo
MHz CPU: 1000,000
MHz CPU: 1000,000
[...] 3 seconds later
# Grep "^ MHz cpu" / proc / cpuinfo
MHz CPU: 1900,000
MHz CPU: 1900,000
[...] 15 seconds later
# Grep "^ MHz cpu" / proc / cpuinfo
MHz CPU: 1900,000
MHz CPU: 1900,000
[1] + Done bzip2-linux-2.4.32.tar.bz2 d-c> / dev / null
# Grep "^ MHz cpu" / proc / cpuinfo
MHz CPU: 1800,000
MHz CPU: 1800,000
# Grep "^ MHz cpu" / proc / cpuinfo
MHz CPU: 1000,000
MHz CPU: 1000,000
We can therefore see that when the load was started, the CPU has adapted itself
The frequency of its operations to its maximum and dice it was most needed
It has reduced its frequency.
The "conservative" works like "ondemand" but with a more inertia
Important about starting, but also on the transition to the reduced frequency.
"Userspace 'makes the frequency by software live. This is no longer
Processors who decides but a program that looks at what is happening on the
Server and changes the frequency depending on the needs.
What computing power for what energy-saving?
-------------------------------------------------- -------
The AMD CPU BE-2300 is also a powerful Intel Pentium 2180 ie
Start100M that. Its power consumption is also the same as 2180.
However, when active "ondemand", the server consumes 10% of energy
And less. The Intel also has adaptive technology frequency
Depending on demand, but consumption remains the same. Worse still exactly the
. This is because in AMD, the CPU and memory controller
(Chipset) are one and therefore decreases when the frequency decreases
The frequency of 2. In the case of Intel, only change the CPU frequency.
The chipset continues to operate at its nominal frequency.
10% of energy, is it a lot or not? This is already something of earned during
Almost half the time of a day. Indeed, during the night and
Morning, the demand is not very robust. But it will be very interesting to have
Exact figures depending on the type of application that will run on your
RPS 2. How many hours a day, your 2 RPS works and how to 1.0GHz
1.9GHz? The graphs! Graph! Hmmm ... Then there are those who want to test
The RPS 2? Why not switch to RPS RPS 1 to 2? In less than 3 minutes?
It left for the beta 2 RPS!
We looked 5 beta testers who want to test all the features
Related changeovers of RPS RPS 1 to 2 then to the RPS RPS 1 or 3 depending
's True needs. Then how long in 1.0GHz? And how to 1.9GHz per day
To be listed? Games? Databases? Blogs? Forums? Hmmm ...
The suite on the forum or rps@ml.ovh.net http://forum.ovh.com/forumdisplay.php?f=44
Thanks!
And what result? In terms of saving énrgie, we test the 45nm Intel.
Slightly smaller CPU full Ahead (RPS 3?):
Model name: Intel (R) Core (TM) 2 Duo CPU E8200@2.66GHz
Stepping: 6
MHz CPU: 2648,000
Cache size: 6144 KB
Yours
Octave