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Idle=poll

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Open Source Communities Subscriptions Downloads Support Cases Account Back Log In Register Red Hat Account Number: Account Details Newsletter and Contact Preferences User Management Account Maintenance My Profile Notifications Help Log A guy scammed me, but he gave me a bank account number & routing number. I read up on C1 and it is not really a "slow" wake-up state. Log in to post comments Patrick Fay (Intel) Sun, 11/09/2014 - 21:26 Hello Beverly, I reproduced what you saw on my ivybridge laptop.

Reload to refresh your session. bpradipt commented Jul 22, 2015 Great @satyajitpadhyewit !!. Any help? The benchmark performance increased linearly with processor frequency and the power went up quadratically. https://github.com/docker/docker/issues/13820

Idle=poll

Your cache administrator is webmaster. We also use the " intel_idle.max_cstates=0" boot option to disable the intel_idle driver and replace it with the acpi_idle driver.    We disable the C3 and higher-numbered states by opening the "/dev/cpu_dma_latency" If you suspect your issue is a bug, please edit your issue description to include the BUG REPORT INFORMATION shown below. The unexpected result is that when I tried to run the same benchmarks with dma_latency=0 vs allowing the C-states to wander where they will (I could use turbostat to watch this),

VBoxSVC) to access a tiny part of the kernel interface. Thank you Frank. Open Source Communities Comments Helpful 7 Follow Are hardware power management features causing latency spikes in my application? Max_cstate=0 What are the applications of taking the output of an amp with a microphone?

It seems like (from the turbostat data) linpack varies between using both HT logical cpus on a core and using only 1 HT cpu. Removing old VirtualBox netflt kernel module ...done. Note that it didn't happen with any other ROM so far... Ok Frank, the solution is to change the following line in /etc/init.d/vboxdrv: MINOR=`sed -n 's;\([0-9]\+\) vboxdrv;\1;p' /proc/misc` and add a "$" at the end of "vboxdrv", so it doesn't get confused

Real-time applications can avoid these delays by preventing the system from making C-state transitions. Linux Check C State Generated Tue, 08 Nov 2016 10:24:00 GMT by s_wx1194 (squid/3.5.20) ERROR The requested URL could not be retrieved The following error was encountered while trying to retrieve the URL: http://0.0.0.10/ Connection Ballpark salary equivalent today of "healthcare benefits" in the US? It also has to be done in an atomic context, so that nothing tries to use the core while it's being powered up.

Linux Disable C-states

more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Additionally, writing a zero to it emulates the idle=poll behavior. Idle=poll I also got data using the different scaling governors (with and without turbo) for the various scaling governors in both acpi_idle and intel_idle. Acpi_idle Vs Intel_idle Unfortunately both of these options tend to cause power usage to spike.

Regards, Beverly     RSS Top 8 posts / 0 new Last post For more complete information about compiler optimizations, see our Optimization Notice. And why "vboxdrvu" gets created ? I don't know much about linpack internals. So I'm going to vote for Dr. Idle=mwait

Anyway, I've committed a similar change which will be part of the next maintenance release. error=-1 04-27 10:19:25.322 132 181 E AudioHardwareQSD: Cannot start pcm playback on AUDIO_START 04-27 10:19:28.592 18373 18373 E libBlurEffect: AndroidBitmap_getInfo() failed ! Sites: Disneyland vs Disneyworld Select 2D data in a certain range more hot questions question feed about us tour help blog chat data legal privacy policy work here advertising info mobile McCalpin, I ran linpack with HT disabled.

View Responses Resources Overview Security Blog Security Measurement Severity Ratings Backporting Policies Product Signing (GPG) Keys Discussions Red Hat Enterprise Linux Red Hat Virtualization Red Hat Satellite Customer Portal Private Groups Intel_idle.max_cstate Ubuntu Download in other formats: Comma-delimited Text Tab-delimited Text RSS Feed Contact – Privacy policy – Terms of Use Menu FORUMS Apps, ROMs, Customization Top Phones Google Pixel XLGoogle PixelBLU R1 HDSamsung Generated Tue, 08 Nov 2016 10:24:00 GMT by s_wx1194 (squid/3.5.20)

Sometimes, it stays stucked and I can only take the battery out.

However, I have not yet been able to decipher the instructions in the Intel Manuals to set them using the msr tools (which would be the preferred method). I don't know much about the dma_latency stuff so I opted for booting the linux kernel with and without 'idle=poll'. My cat sat down on my laptop, now the right side of my keyboard types the wrong characters Why did Michael Corleone not forgive his brother Fredo? /dev/network_latency We Acted.

Here are the details: I have been able to switch between the intel_idle and acpi drivers by using the intel_idle.max_cstates=0 statement in GRUB at boot time. Attachments VBoxSVC.log (2.9 KB) - added by Dâniel Fraga 14 months ago. You signed in with another tab or window. Open Source Communities Subscriptions Downloads Support Cases Account Back Log In Register Red Hat Account Number: Account Details Newsletter and Contact Preferences User Management Account Maintenance My Profile Notifications Help Log

error=-1 04-27 10:19:20.302 132 181 E AudioHardwareQSD: Cannot start pcm playback on AUDIO_START 04-27 10:19:23.602 18373 18373 E libBlurEffect: AndroidBitmap_getInfo() failed ! Summary: Modern processors power management features can cause unwanted delays in time-sensitive application processing by transitioning your processors into power-saving C-states. I wonder if the difference between no C-states and C1 is how the threading operates. Red Hat Account Number: Red Hat Account Account Details Newsletter and Contact Preferences User Management Account Maintenance Customer Portal My Profile Notifications Help For your security, if you’re on a public

Mon, 11/10/2014 - 14:03 Hi, Thanks for the responses.


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