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xen-devel
Re: [Xen-devel] [PATCH] Add a timer mode that disables pending missed ti
To: |
Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> |
Subject: |
Re: [Xen-devel] [PATCH] Add a timer mode that disables pending missed ticks |
From: |
Dave Winchell <dwinchell@xxxxxxxxxxxxxxx> |
Date: |
Mon, 05 Nov 2007 09:36:43 -0500 |
Cc: |
"Dong, Eddie" <eddie.dong@xxxxxxxxx>, Dave Winchell <dwinchell@xxxxxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, "Shan, Haitao" <haitao.shan@xxxxxxxxx>, "Jiang, Yunhong" <yunhong.jiang@xxxxxxxxx> |
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Mon, 19 Nov 2007 10:17:08 -0800 |
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<C352A755.FE8B%Keir.Fraser@xxxxxxxxxxxx> |
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Keir Fraser wrote:
On 3/11/07 21:17, "Dave Winchell" <dwinchell@xxxxxxxxxxxxxxx> wrote:
Thanks for applying the fixes in the last submit.
In moving the test for no_missed_tick_accounting into
pt_process_missed_ticks()
you forgot to add the scheduling part.
Actually it was deliberate, but clearly it was one code simplification too
far: thanks for spotting it! I'll go the async route, but we do need to set
pending_intr_nr to 1. We can't leave that out -- the point of the async
route is to send a tick to the vcpu immediately, since it hasn't had one for
more than a tick period. If we wait for the timeout to do that then we have
to wait a whole extra period after the vcpu is re-scheduled.
Attached is my proposed patch. I think it's quite neat. :-)
It looks good to me.
thanks,
Dave
-- Keir
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- Re: [Xen-devel] [PATCH] Add a timer mode that disables pending missed ticks, Dave Winchell
- Re: [Xen-devel] [PATCH] Add a timer mode that disables pending missed ticks, Dave Winchell
- Re: [Xen-devel] [PATCH] Add a timer mode that disables pending missed ticks, Keir Fraser
- Re: [Xen-devel] [PATCH] Add a timer mode that disables pending missed ticks, Dave Winchell
- Re: [Xen-devel] [PATCH] Add a timer mode that disables pending missed ticks, Keir Fraser
- Re: [Xen-devel] [PATCH] Add a timer mode that disables pending missed ticks, Keir Fraser
- Re: [Xen-devel] [PATCH] Add a timer mode that disables pending missed ticks, Dave Winchell
- Re: [Xen-devel] [PATCH] Add a timer mode that disables pending missed ticks, Dave Winchell
- Re: [Xen-devel] [PATCH] Add a timer mode that disables pending missed ticks, Keir Fraser
- Re: [Xen-devel] [PATCH] Add a timer mode that disables pending missed ticks,
Dave Winchell <=
- Re: [Xen-devel] [PATCH] Add a timer mode that disables pending missed ticks, Dave Winchell
- Re: [Xen-devel] [PATCH] Add a timer mode that disables pending missed ticks, Keir Fraser
- Re: [Xen-devel] [PATCH] Add a timer mode that disables pending missed ticks, Dave Winchell
- Re: [Xen-devel] [PATCH] Add a timer mode that disables pending missed ticks, Keir Fraser
- Re: [Xen-devel] [PATCH] Add a timer mode that disables pending missed ticks, Keir Fraser
- Re: [Xen-devel] [PATCH] Add a timer mode that disables pending missed ticks, Keir Fraser
- Re: [Xen-devel] [PATCH] Add a timer mode that disables pending missed ticks, Dave Winchell
- Re: [Xen-devel] [PATCH] Add a timer mode that disables pending missed ticks, Keir Fraser
- Re: [Xen-devel] [PATCH] Add a timer mode that disables pending missed ticks, Dave Winchell
- Re: [Xen-devel] [PATCH] Add a timer mode that disables pending missed ticks, Keir Fraser
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