Can Interl 2.4G(C) Hyper threading processor run 2 hardware interrupts in the same moment?

NTDEV
1

Hi,all

Can One Interl 2.4G(C) Hyper threading processor run 2 hardware interrupts in the same moment?
I’m working under Windows XP.

Thanks for your time.
Thanks for your help.

Crasher Guo
xxxxx@sinfors.com.cn

2

I believe so, yes. They would have to be at different IRQLs I think. I
seem to remember that the host APIC is at least partially shared on an HT
machine. So the amount of overlap you can have may depend on how the APIC
is managed, which is different for edge and level interrupts.

Loren

----- Original Message -----
From: “Crasher Guo”
To: “Windows System Software Devs Interest List”
Sent: Wednesday, February 18, 2004 10:06 PM
Subject: [ntdev] Can Interl 2.4G(C) Hyper threading processor run 2 hardware
interrupts in the same moment?

> Hi,all
>
> Can One Interl 2.4G(C) Hyper threading processor run 2 hardware
interrupts in the same moment?
> I’m working under Windows XP.

3

Hi,Loren Wilton

Thanks for you answer. I’ll try this in my program.
Thanks again.

======= 2004-02-19 14:36:44 You wrote=======

I believe so, yes. They would have to be at different IRQLs I think. I
seem to remember that the host APIC is at least partially shared on an HT
machine. So the amount of overlap you can have may depend on how the APIC
is managed, which is different for edge and level interrupts.

Loren

----- Original Message -----
From: “Crasher Guo”
>To: “Windows System Software Devs Interest List”
>Sent: Wednesday, February 18, 2004 10:06 PM
>Subject: [ntdev] Can Interl 2.4G(C) Hyper threading processor run 2 hardware
>interrupts in the same moment?
>
>
>> Hi,all
>>
>> Can One Interl 2.4G(C) Hyper threading processor run 2 hardware
>interrupts in the same moment?
>> I’m working under Windows XP.
>
>
>—
>Questions? First check the Kernel Driver FAQ at http://www.osronline.com/article.cfm?id=256
>
>You are currently subscribed to ntdev as: xxxxx@sinfors.com.cn
>To unsubscribe send a blank email to xxxxx@lists.osr.com

= = = = = = = = = = = = = = = = = = = =

Crasher Guo
xxxxx@sinfors.com.cn
2004-02-19

4

Yes it can.

Maxim Shatskih, Windows DDK MVP
StorageCraft Corporation
xxxxx@storagecraft.com
http://www.storagecraft.com

----- Original Message -----
From: “Crasher Guo”
To: “Windows System Software Devs Interest List”
Sent: Thursday, February 19, 2004 9:06 AM
Subject: [ntdev] Can Interl 2.4G(C) Hyper threading processor run 2 hardware
interrupts in the same moment?

> Hi,all
>
> Can One Interl 2.4G(C) Hyper threading processor run 2 hardware interrupts
in the same moment?
> I’m working under Windows XP.
>
> Thanks for your time.
> Thanks for your help.
>
> Crasher Guo
> xxxxx@sinfors.com.cn
>
>
>
> —
> Questions? First check the Kernel Driver FAQ at
http://www.osronline.com/article.cfm?id=256
>
> You are currently subscribed to ntdev as: xxxxx@storagecraft.com
> To unsubscribe send a blank email to xxxxx@lists.osr.com

5

Hi Crasher, my name is Gary Little, son of O. G. and Nina Little. Do you
have a name? Surely your parents didn’t make you suffer through life with
Crasher?

You ask good intelligent questions, and I’d like to know the person whose
asking them.

Gary

“Crasher Guo” wrote in message news:xxxxx@ntdev…
> Hi,Loren Wilton
>
> Thanks for you answer. I’ll try this in my program.
> Thanks again.
>
> ======= 2004-02-19 14:36:44 You wrote=======
>
> >I believe so, yes. They would have to be at different IRQLs I think. I
> >seem to remember that the host APIC is at least partially shared on an HT
> >machine. So the amount of overlap you can have may depend on how the
APIC
> >is managed, which is different for edge and level interrupts.
> >
> > Loren
> >
> >----- Original Message -----
> >From: “Crasher Guo”
> >To: “Windows System Software Devs Interest List”
> >Sent: Wednesday, February 18, 2004 10:06 PM
> >Subject: [ntdev] Can Interl 2.4G(C) Hyper threading processor run 2
hardware
> >interrupts in the same moment?
> >
> >
> >> Hi,all
> >>
> >> Can One Interl 2.4G(C) Hyper threading processor run 2 hardware
> >interrupts in the same moment?
> >> I’m working under Windows XP.
> >
> >
> >—
> >Questions? First check the Kernel Driver FAQ at
http://www.osronline.com/article.cfm?id=256
> >
> >You are currently subscribed to ntdev as: xxxxx@sinfors.com.cn
> >To unsubscribe send a blank email to xxxxx@lists.osr.com
>
> = = = = = = = = = = = = = = = = = = = =
>
>
> Crasher Guo
> xxxxx@sinfors.com.cn
> 2004-02-19
>
>
>

6

No, actually that part of the APIC state is separate. You can run two
interrupts at the same IRQL simultaneously.

–
Jake Oshins
Windows Base Kernel Team

This posting is provided “AS IS” with no warranties, and confers no rights.

“Loren Wilton” wrote in message news:xxxxx@ntdev…
>I believe so, yes. They would have to be at different IRQLs I think. I
> seem to remember that the host APIC is at least partially shared on an HT
> machine. So the amount of overlap you can have may depend on how the APIC
> is managed, which is different for edge and level interrupts.
>
> Loren
>
> ----- Original Message -----
> From: “Crasher Guo”
> To: “Windows System Software Devs Interest List”
> Sent: Wednesday, February 18, 2004 10:06 PM
> Subject: [ntdev] Can Interl 2.4G(C) Hyper threading processor run 2
> hardware
> interrupts in the same moment?
>
>
>> Hi,all
>>
>> Can One Interl 2.4G(C) Hyper threading processor run 2 hardware
> interrupts in the same moment?
>> I’m working under Windows XP.
>
>