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Re: [Qemu-devel] [RFC qemu 0/4] A PV solution for live migration optimiz

From: Paolo Bonzini
Subject: Re: [Qemu-devel] [RFC qemu 0/4] A PV solution for live migration optimization
Date: Fri, 4 Mar 2016 17:24:34 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.6.0

On 04/03/2016 15:26, Li, Liang Z wrote:
>> > 
>> > The memory usage will keep increasing due to ever growing caches, etc, so
>> > you'll be left with very little free memory fairly soon.
>> > 
> I don't think so.

Roman is right.  For example, here I am looking at a 64 GB (physical)
machine which was booted about 30 minutes ago, and which is running
disk-heavy workloads (installing VMs).

Since I have started writing this email (2 minutes?), the amount of free
memory has already gone down from 37 GB to 33 GB.  I expect that by the
time I have finished running the workload, in two hours, it will not
have any free memory.


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