* [Qemu-devel] sleeping in vm live migration code
@ 2017-04-12 13:43 ali saeedi
2017-04-18 14:53 ` Stefan Hajnoczi
0 siblings, 1 reply; 2+ messages in thread
From: ali saeedi @ 2017-04-12 13:43 UTC (permalink / raw)
To: qemu-devel
Hi
why we have below code in vm live migration?
* g_usleep((initial_time + BUFFER_DELAY - current_time)*1000);*
thanks a lot
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [Qemu-devel] sleeping in vm live migration code
2017-04-12 13:43 [Qemu-devel] sleeping in vm live migration code ali saeedi
@ 2017-04-18 14:53 ` Stefan Hajnoczi
0 siblings, 0 replies; 2+ messages in thread
From: Stefan Hajnoczi @ 2017-04-18 14:53 UTC (permalink / raw)
To: ali saeedi; +Cc: qemu-devel
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On Wed, Apr 12, 2017 at 06:13:33PM +0430, ali saeedi wrote:
> why we have below code in vm live migration?
> * g_usleep((initial_time + BUFFER_DELAY - current_time)*1000);*
It's for migration rate-limiting. The migration thread throttles itself
if the user has configured a maximum transmission rate for the live
migration connection.
Stefan
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