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Re: [Qemu-devel] [patch 0/3] kvmclock: Ensure time in migration never go
From: |
Paolo Bonzini |
Subject: |
Re: [Qemu-devel] [patch 0/3] kvmclock: Ensure time in migration never goes backward (v3) |
Date: |
Sat, 06 Sep 2014 00:14:45 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.0 |
Il 05/09/2014 21:35, Andrey Korolyov ha scritto:
> - boot up a VM, make sure to feed it heavy long task, for example
> kernel compilation,
> - neither migrate once in the middle of process (with fallback to
> non-live migration which is available in libvirt, else it may take
> forever) or just wait up to the end,
> - live migration time degrades from sub-10s value to larger values
> forever, not regarding if workload is still presented or not.
Are you sure you aren't simply doing migration with a low bandwidth
limit (the default is 32 MB/s), and moving over a gigabyte worth of page
cache data to the new machine?
Paolo
- [Qemu-devel] [patch 1/3] kvmclock: Ensure time in migration never goes backward, (continued)
- [Qemu-devel] [patch 2/3] Introduce cpu_clean_all_dirty, Marcelo Tosatti, 2014/09/05
- Re: [Qemu-devel] [patch 0/3] kvmclock: Ensure time in migration never goes backward (v3), Andrey Korolyov, 2014/09/05
- Re: [Qemu-devel] [patch 0/3] kvmclock: Ensure time in migration never goes backward (v3), Marcelo Tosatti, 2014/09/05
- Re: [Qemu-devel] [patch 0/3] kvmclock: Ensure time in migration never goes backward (v3), Paolo Bonzini, 2014/09/05
- Re: [Qemu-devel] [patch 0/3] kvmclock: Ensure time in migration never goes backward (v3), Andrey Korolyov, 2014/09/05
- Re: [Qemu-devel] [patch 0/3] kvmclock: Ensure time in migration never goes backward (v3), Andrey Korolyov, 2014/09/05
- Re: [Qemu-devel] [patch 0/3] kvmclock: Ensure time in migration never goes backward (v3),
Paolo Bonzini <=
- Re: [Qemu-devel] [patch 0/3] kvmclock: Ensure time in migration never goes backward (v3), Andrey Korolyov, 2014/09/05
- Re: [Qemu-devel] [patch 0/3] kvmclock: Ensure time in migration never goes backward (v3), Andrey Korolyov, 2014/09/09
Re: [Qemu-devel] [patch 0/3] kvmclock: Ensure time in migration never goes backward (v3), Paolo Bonzini, 2014/09/16