Re: Disabling CPU throttling on fedora22
On 11/27/2015 09:05 PM, Alex wrote: > I've looked in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor > and all are set to "performance". > > What is the procedure for disabling CPU throttling permanently? Please note that, even if you configure everything for performance, the throttling can still kick in if the CPU needs it (overheat, overcurrent, ...). The inevitable question would be: why do you want to push the CPU to the max permanently for a _mail server_? Definitely not a realtime data capture machine... -- Roberto Ragusamail at robertoragusa.it -- users mailing list users@lists.fedoraproject.org To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org
Re: Disabling CPU throttling on fedora22
On 12/03/2015 12:26 PM, Alex wrote: Hi, On Mon, Nov 30, 2015 at 9:54 PM, Kevin Cummings wrote: On 11/27/15 15:05, Alex wrote: Hi, I have a fedora22 SuperMicro system operating as a mail server that has no need to have the CPU throttled. I'm having trouble figuring out how to disable the throttling. There also doesn't appear to be any recent threads discussing this previously. It appears some are running at full speed while others are not: # cat /proc/cpuinfo |grep Hz model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz cpu MHz : 1875.187 model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz cpu MHz : 2188.687 model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz cpu MHz : 2399.906 model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz cpu MHz : 1475.812 model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz cpu MHz : 2075.437 model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz cpu MHz : 2340.750 model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz cpu MHz : 1262.062 model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz cpu MHz : 2111.812 My understanding of CPU throttling allows the CPUs to run at full speed when they are busy, and to be throttled back when they are idle. Are you sure that each CPU was engaged in doing work when you queried their speeds? It is designed to allow laptops to idle (and not generate as much heat) when they don't have to. It is *not* a permanent throttling back of the CPUs denying you possible better computing speeds. Instead it is designed to have the CPUs (cores) generate less heat when they are not busy. I have a CPU Frequency Scaling Monitor installed in a panel on my laptop, and I can watch the CPU speeds change (increase and decrease) with the workloads as processes come and go. Thanks for the info. In the past, the system wasn't responsive enough to adjust the CPU as load increased. It seems with recent processors, the technology is a lot more sophisticated and no longer really possible to control its speed. It's possible. One way is to write a shell script as I did: # cat /etc/rc.d/init.d/maxcpuspeed #!/bin/bash for TGT in `ls /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor`; do echo "performance" >$TGT done Try running it first and see if it does what you want. If so, then make the system run the script at boot time: # systemctl enable maxcpuspeed.service Sorta clunky, but it should work. I'm not sure which service forces "powersave" in there, but disable it if you find it. It may be a default in the kernel. Not sure. For servers, I use the above script. For desktop use, I leave it alone. -- - Rick Stevens, Systems Engineer, AllDigitalri...@alldigital.com - - AIM/Skype: therps2ICQ: 226437340 Yahoo: origrps2 - -- - Vegetarian: Old Indian word for "lousy hunter" - -- -- users mailing list users@lists.fedoraproject.org To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org
Re: Disabling CPU throttling on fedora22
Hi, On Mon, Nov 30, 2015 at 9:54 PM, Kevin Cummings wrote: > On 11/27/15 15:05, Alex wrote: >> Hi, >> I have a fedora22 SuperMicro system operating as a mail server that >> has no need to have the CPU throttled. I'm having trouble figuring out >> how to disable the throttling. There also doesn't appear to be any >> recent threads discussing this previously. >> >> It appears some are running at full speed while others are not: >> >> # cat /proc/cpuinfo |grep Hz >> model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz >> cpu MHz : 1875.187 >> model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz >> cpu MHz : 2188.687 >> model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz >> cpu MHz : 2399.906 >> model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz >> cpu MHz : 1475.812 >> model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz >> cpu MHz : 2075.437 >> model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz >> cpu MHz : 2340.750 >> model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz >> cpu MHz : 1262.062 >> model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz >> cpu MHz : 2111.812 > > My understanding of CPU throttling allows the CPUs to run at full speed > when they are busy, and to be throttled back when they are idle. > > Are you sure that each CPU was engaged in doing work when you queried > their speeds? > > It is designed to allow laptops to idle (and not generate as much heat) > when they don't have to. It is *not* a permanent throttling back of the > CPUs denying you possible better computing speeds. Instead it is > designed to have the CPUs (cores) generate less heat when they are not busy. > > I have a CPU Frequency Scaling Monitor installed in a panel on my > laptop, and I can watch the CPU speeds change (increase and decrease) > with the workloads as processes come and go. Thanks for the info. In the past, the system wasn't responsive enough to adjust the CPU as load increased. It seems with recent processors, the technology is a lot more sophisticated and no longer really possible to control its speed. -- users mailing list users@lists.fedoraproject.org To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org
Re: Disabling CPU throttling on fedora22
On 11/27/15 15:05, Alex wrote: > Hi, > I have a fedora22 SuperMicro system operating as a mail server that > has no need to have the CPU throttled. I'm having trouble figuring out > how to disable the throttling. There also doesn't appear to be any > recent threads discussing this previously. > > It appears some are running at full speed while others are not: > > # cat /proc/cpuinfo |grep Hz > model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz > cpu MHz : 1875.187 > model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz > cpu MHz : 2188.687 > model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz > cpu MHz : 2399.906 > model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz > cpu MHz : 1475.812 > model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz > cpu MHz : 2075.437 > model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz > cpu MHz : 2340.750 > model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz > cpu MHz : 1262.062 > model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz > cpu MHz : 2111.812 My understanding of CPU throttling allows the CPUs to run at full speed when they are busy, and to be throttled back when they are idle. Are you sure that each CPU was engaged in doing work when you queried their speeds? It is designed to allow laptops to idle (and not generate as much heat) when they don't have to. It is *not* a permanent throttling back of the CPUs denying you possible better computing speeds. Instead it is designed to have the CPUs (cores) generate less heat when they are not busy. I have a CPU Frequency Scaling Monitor installed in a panel on my laptop, and I can watch the CPU speeds change (increase and decrease) with the workloads as processes come and go. > I've searched for the programs I've used in the past, including > cpuspeed and cpufreq-* but they appear to no longer exist. > > I've looked in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor > and all are set to "performance". > > What is the procedure for disabling CPU throttling permanently? > > Thanks, > Alex > -- Kevin J. Cummings kjch...@verizon.net cummi...@kjchome.homeip.net cummi...@kjc386.framingham.ma.us Registered Linux User #1232 (http://www.linuxcounter.net/) -- users mailing list users@lists.fedoraproject.org To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org
Re: Disabling CPU throttling on fedora22
On Fri, 2015-11-27 at 22:02 -0500, Alex wrote: > Hi, > > > On one of my machines: > > > > # cat /proc/cpuinfo | grep Hz > > model name : Intel(R) Core(TM) i5 CPU M 560 @ 2.67GHz > > cpu MHz : 2667.000 > > model name : Intel(R) Core(TM) i5 CPU M 560 @ 2.67GHz > > cpu MHz : 2667.000 > > model name : Intel(R) Core(TM) i5 CPU M 560 @ 2.67GHz > > cpu MHz : 2667.000 > > model name : Intel(R) Core(TM) i5 CPU M 560 @ 2.67GHz > > cpu MHz : 2667.000 > > > > Notice there is no throttling. > > > > I have the following entry in a file that is executed when system > > comes up: > > > > /bin/cpupower --cpu all frequency-set -g performance 2.67G > > What package does that belong to? I'm unable to find it and don't > have > it on my system. I was wondering that also, here is what I found (only showing the helpful part, not my flailing about to find it): >sudo dnf whatprovides "*bin/cpupower" kernel-tools-4.2.3-300.fc23.x86_64 : Assortment of tools for the Linux kernel Repo: fedora kernel-tools-4.2.6-301.fc23.x86_64 : Assortment of tools for the Linux kernel Repo: updates >sudo dnf info kernel-tools Last metadata expiration check performed 2:44:29 ago on Sun Nov 29 04:24:02 2015. Available Packages Name: kernel-tools Arch: x86_64 Epoch : 0 Version : 4.2.6 Release : 301.fc23 Size: 134 k Repo: updates Summary : Assortment of tools for the Linux kernel URL : http://www.kernel.org/ License : GPLv2 Description : This package contains the tools/ directory from the kernel source : and the supporting documentation. >sudo dnf install kernel-tools [snip] Reading the man page now. -- Doug H. -- users mailing list users@lists.fedoraproject.org To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org
Re: Disabling CPU throttling on fedora22
Hi, > On one of my machines: > > # cat /proc/cpuinfo | grep Hz > model name : Intel(R) Core(TM) i5 CPU M 560 @ 2.67GHz > cpu MHz : 2667.000 > model name : Intel(R) Core(TM) i5 CPU M 560 @ 2.67GHz > cpu MHz : 2667.000 > model name : Intel(R) Core(TM) i5 CPU M 560 @ 2.67GHz > cpu MHz : 2667.000 > model name : Intel(R) Core(TM) i5 CPU M 560 @ 2.67GHz > cpu MHz : 2667.000 > > Notice there is no throttling. > > I have the following entry in a file that is executed when system comes up: > > /bin/cpupower --cpu all frequency-set -g performance 2.67G What package does that belong to? I'm unable to find it and don't have it on my system. > Is there a kernel thread running called: acpi_thermal_pm ? Yes, there is. Could this be a module? Hmm.. I see this one: # lsmod|grep therm x86_pkg_temp_thermal16384 0 Now just to figure out how/why it's loaded in order to disable it... Thanks, Alex -- users mailing list users@lists.fedoraproject.org To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org
Re: Disabling CPU throttling on fedora22
On 11/27/2015 01:05 PM, Alex wrote: Hi, I have a fedora22 SuperMicro system operating as a mail server that has no need to have the CPU throttled. I'm having trouble figuring out how to disable the throttling. There also doesn't appear to be any recent threads discussing this previously. It appears some are running at full speed while others are not: # cat /proc/cpuinfo |grep Hz model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz cpu MHz : 1875.187 model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz cpu MHz : 2188.687 model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz cpu MHz : 2399.906 model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz cpu MHz : 1475.812 model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz cpu MHz : 2075.437 model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz cpu MHz : 2340.750 model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz cpu MHz : 1262.062 model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz cpu MHz : 2111.812 I've searched for the programs I've used in the past, including cpuspeed and cpufreq-* but they appear to no longer exist. I've looked in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor and all are set to "performance". What is the procedure for disabling CPU throttling permanently? Thanks, Alex On one of my machines: # cat /proc/cpuinfo | grep Hz model name : Intel(R) Core(TM) i5 CPU M 560 @ 2.67GHz cpu MHz : 2667.000 model name : Intel(R) Core(TM) i5 CPU M 560 @ 2.67GHz cpu MHz : 2667.000 model name : Intel(R) Core(TM) i5 CPU M 560 @ 2.67GHz cpu MHz : 2667.000 model name : Intel(R) Core(TM) i5 CPU M 560 @ 2.67GHz cpu MHz : 2667.000 Notice there is no throttling. I have the following entry in a file that is executed when system comes up: /bin/cpupower --cpu all frequency-set -g performance 2.67G -- users mailing list users@lists.fedoraproject.org To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org
Re: Disabling CPU throttling on fedora22
On 11/27/2015 01:05 PM, Alex wrote: Hi, I have a fedora22 SuperMicro system operating as a mail server that has no need to have the CPU throttled. I'm having trouble figuring out how to disable the throttling. There also doesn't appear to be any recent threads discussing this previously. It appears some are running at full speed while others are not: # cat /proc/cpuinfo |grep Hz model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz cpu MHz : 1875.187 model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz cpu MHz : 2188.687 model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz cpu MHz : 2399.906 model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz cpu MHz : 1475.812 model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz cpu MHz : 2075.437 model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz cpu MHz : 2340.750 model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz cpu MHz : 1262.062 model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz cpu MHz : 2111.812 I've searched for the programs I've used in the past, including cpuspeed and cpufreq-* but they appear to no longer exist. I've looked in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor and all are set to "performance". What is the procedure for disabling CPU throttling permanently? Thanks, Alex I thought it is related to PM (power management) deamon. Is there a kernel thread running called: acpi_thermal_pm ? Run ps to see. Since it is a kernel thread, I assume it is not under user control. -- users mailing list users@lists.fedoraproject.org To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org
Disabling CPU throttling on fedora22
Hi, I have a fedora22 SuperMicro system operating as a mail server that has no need to have the CPU throttled. I'm having trouble figuring out how to disable the throttling. There also doesn't appear to be any recent threads discussing this previously. It appears some are running at full speed while others are not: # cat /proc/cpuinfo |grep Hz model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz cpu MHz : 1875.187 model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz cpu MHz : 2188.687 model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz cpu MHz : 2399.906 model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz cpu MHz : 1475.812 model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz cpu MHz : 2075.437 model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz cpu MHz : 2340.750 model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz cpu MHz : 1262.062 model name : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz cpu MHz : 2111.812 I've searched for the programs I've used in the past, including cpuspeed and cpufreq-* but they appear to no longer exist. I've looked in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor and all are set to "performance". What is the procedure for disabling CPU throttling permanently? Thanks, Alex -- users mailing list users@lists.fedoraproject.org To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org
