Il 23/08/2013 11:00, Lei Li ha scritto:
>>> The performance assurance is very important to this feature, our goal is
>>> 100ms of downtime for a 1TB guest.
>>
>> I honestly doubt that 100ms of downtime is possible while the machine is
>> stopped. A 1TB guest has 2^28 = 268*10^6 pages, which you wa
On 08/23/2013 03:48 PM, Paolo Bonzini wrote:
Il 23/08/2013 08:25, Lei Li ha scritto:
On 08/21/2013 06:48 PM, Paolo Bonzini wrote:
Il 21/08/2013 09:18, Lei Li ha scritto:
Send all the ram blocks hooked by save_page, which will copy
ram page and MADV_DONTNEED the page just copied.
You should im
Il 23/08/2013 09:57, Alex Bligh ha scritto:
>
>
> --On 23 August 2013 09:48:42 +0200 Paolo Bonzini
> wrote:
>
>> As a matter of fact, 2^28 madvise system calls will take much, much
>> longer than 100ms.
>
> Probably a stupid question, but why would you need to do one call per
> page? It takes
--On 23 August 2013 09:48:42 +0200 Paolo Bonzini
wrote:
As a matter of fact, 2^28 madvise system calls will take much, much
longer than 100ms.
Probably a stupid question, but why would you need to do one call per
page? It takes a 'size_t length' parameter.
--
Alex Bligh
Il 23/08/2013 08:25, Lei Li ha scritto:
> On 08/21/2013 06:48 PM, Paolo Bonzini wrote:
>> Il 21/08/2013 09:18, Lei Li ha scritto:
>>> Send all the ram blocks hooked by save_page, which will copy
>>> ram page and MADV_DONTNEED the page just copied.
>> You should implement this entirely in the hook.
On 08/21/2013 06:48 PM, Paolo Bonzini wrote:
Il 21/08/2013 09:18, Lei Li ha scritto:
Send all the ram blocks hooked by save_page, which will copy
ram page and MADV_DONTNEED the page just copied.
You should implement this entirely in the hook.
It will be a little less efficient because of the d
Il 21/08/2013 09:18, Lei Li ha scritto:
> Send all the ram blocks hooked by save_page, which will copy
> ram page and MADV_DONTNEED the page just copied.
You should implement this entirely in the hook.
It will be a little less efficient because of the dirty bitmap overhead,
but you should aim at
Send all the ram blocks hooked by save_page, which will copy
ram page and MADV_DONTNEED the page just copied.
Signed-off-by: Lei Li
---
arch_init.c | 19 +--
1 files changed, 13 insertions(+), 6 deletions(-)
diff --git a/arch_init.c b/arch_init.c
index 434a4ca..cbbb4db 100644
