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Re: [Qemu-discuss] Reducing guest cpu usage

From: Programmingkid
Subject: Re: [Qemu-discuss] Reducing guest cpu usage
Date: Fri, 30 Dec 2016 15:07:32 -0500

> Is that exposed to users of libvirt or Qemu in any way?
> /--Regards, Aleksei/
> ------------------------------------------------------------------------
> *From:* Programmingkid
> *Sent:* Thursday, December 29, 2016 7:31PM
> *To:* Vincenzo Romano
> *Cc:* Qemu-devel Qemu-devel, Qemu-discuss
> *Subject:* Re: [Qemu-discuss] Reducing guest cpu usage
>> Thank you very much for helping, but I found out what to do. There is a 
>> function called cpu_throttle_set() that does exactly what I needed.
>> Happy Holidays.
>> On Dec 29, 2016, at 3:30 AM, Vincenzo Romano wrote:
>>> I think you have to provide much more details:
>>> Qemu version
>>> Host CPU and OS
>>> Guest CPU and OS
>>> Application details
>>> Il 29 dic 2016 07:27, "Programmingkid" <address@hidden> ha scritto:
>>> There is a program that I run inside of QEMU that doesn't use the virtual 
>>> CPU very efficiently. It causes QEMU to use 100% of the guest's CPU time. I 
>>> was wondering if there were a way to reduce the amount of host CPU time 
>>> that a guest CPU can use? This feature would help prevent laptops from 
>>> heating up when running QEMU.

Yes, the function is available to the emulation users. I do not know about the 
libvirt users. I do not know if this function is available via the Monitor. 

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