10-24-2014
Newer kernels include more support for CPU throttling, C-states. Probably stepping down the CPU when it can. What kind of load is the system usually under? Honestly even if your CPU is pegged 100% 24/7 you shouldnt be in 75-80C. Thats way too hot. 60C is where you want to be for a non-overclocked CPU even at 100% duty cycle. 30-45 for idle or normal use.
There is an entry in the kernel cpu config to enable or disable turbo speeds. ( not overclocking specifically) Maybe the old config happened to have that enabled, and the new one is disabled by default?
Not that you can compare to values pre-upgrade, but two things to look at that might be of use is to check the physical power usage of the box with a power-meter inline from the socket to the PSU. They can be had for $20-30. Again, not all that usefull without having "before" values to compare too. But more info on your system is always good to have. Second thing to look at is install "turbostat". It will show you the clock-rates and precentage of time each core is spending in various C states ( full power through idle/power-save modes). There are a handful of other tools that show the same info. Thats just the one I happened to use recently.
This User Gave Thanks to agentrnge For This Post:
6 More Discussions You Might Find Interesting
1. Solaris
Hello,
Can give me some tips to trace the GPU usage on a solaris8 update7 box?
I try to understand why a Cadcam app is so slow on my Solaris box compared to a win$ box. I guess it comes from the poor graphic card I have but i would like to emphasize it.
My bench is 150sec long on a Solaris... (0 Replies)
Discussion started by: solea
0 Replies
2. UNIX for Advanced & Expert Users
Hi ,
i want begin programming using CUDA
which enviroment can i get .I don't have desktop to buy GPU graphics card.
what should to do to get CUDA enviroment.
i'm thinking to buy desktop has this card or laptop (1 Reply)
Discussion started by: Scotch
1 Replies
3. Hardware
Dear all,
I set up a external Gforce GPU using the PE4H (Pcie passive adapter) from HWTOOLS.NET.
I'm able to add and remove the device doing
and
The point is the kernel does not initialized the device correctly.
Here is what dmesg gives after the scan:
lspci -t gives
and lspci... (2 Replies)
Discussion started by: aihake
2 Replies
4. Hardware
I am trying to start troubleshooting an error on a virtual server that uses the ubuntu 14.04 OS. Basically what happens (seeming random) is that the GPU stops processing and terminates. What Imean by seeming random is that for 3 runs there is no error then on run 4 the error appears. It has... (2 Replies)
Discussion started by: cmccabe
2 Replies
5. Hardware
Hi All
I'm find out a way to disable the DGD: AMD Radeon HD 7470M on my Ubutu 16.04.2 LTS because radeon open source module is not capable to support this GPU and consequence the boot is very slow.
I have tried serveral way with pci-stub.ids in the grub menu but not work.
In general how... (11 Replies)
Discussion started by: _Fabio_79
11 Replies
6. Linux
The situation
videocard n°1 Nvidia Ge-force(used on host linux)
videocard n°2 Ati radeon(used on guest windows 7)
host is Slackware 14.2,kernel 4.18.15
I had set vfio to pass a ati card to windows7 guest
Configure /etc/modprobe.d/vfio.conf
options vfio-pci... (1 Reply)
Discussion started by: Linusolaradm1
1 Replies
LEARN ABOUT FREEBSD
powerd
POWERD(8) BSD System Manager's Manual POWERD(8)
NAME
powerd -- system power control utility
SYNOPSIS
powerd [-a mode] [-b mode] [-i percent] [-m freq] [-M freq] [-n mode] [-p ival] [-P pidfile] [-r percent] [-v]
DESCRIPTION
The powerd utility monitors the system state and sets various power control options accordingly. It offers power-saving modes that can be
individually selected for operation on AC power or batteries.
maximum Choose the highest performance values. May be abbreviated as max.
minimum Choose the lowest performance values to get the most power savings. May be abbreviated as min.
adaptive Attempt to strike a balance by degrading performance when the system appears idle and increasing it when the system is busy. It
offers a good balance between a small performance loss for greatly increased power savings. May be abbreviated as adp.
hiadaptive Like adaptive mode, but tuned for systems where performance and interactivity are more important than power consumption. It
increases frequency faster, reduces frequency less aggressively, and will maintain full frequency for longer. May be abbreviated
as hadp.
The default mode is adaptive for battery power and hiadaptive for the rest.
powerd recognizes these runtime options:
-a mode Selects the mode to use while on AC power.
-b mode Selects the mode to use while on battery power.
-i percent Specifies the CPU load percent level when adaptive mode should begin to degrade performance to save power. The default is 50% or
lower.
-m freq Specifies the minimum frequency to throttle down to.
-M freq Specifies the maximum frequency to throttle up to.
-n mode Selects the mode to use normally when the AC line state is unknown.
-p ival Specifies a different polling interval (in milliseconds) for AC line state and system idle levels. The default is 250 ms.
-P pidfile Specifies an alternative file in which the process ID should be stored. The default is /var/run/powerd.pid.
-r percent Specifies the CPU load percent level where adaptive mode should consider the CPU running and increase performance. The default
is 75% or higher.
-v Verbose mode. Messages about power changes will be printed to stdout and powerd will operate in the foreground.
SEE ALSO
acpi(4), apm(4), cpufreq(4)
HISTORY
The powerd utility first appeared in FreeBSD 6.0.
AUTHORS
Colin Percival first wrote estctrl, the utility that powerd is based on. Nate Lawson then updated it for cpufreq(4), added features, and
wrote this manual page.
BUGS
The powerd utility should also power down idle disks and other components besides the CPU.
If powerd is used with power_profile, they may override each other.
The powerd utility should probably use the devctl(4) interface instead of polling for AC line state.
BSD
July 4, 2013 BSD