[Embench] Embench Digest, Vol 16, Issue 2

Ronen Haen Ronen.Haen at wdc.com
Sun Nov 15 08:04:14 CET 2020


Hi,

1. Jon, M_PSP_PUSH and M_PSP_POP are context save/restore; this initial proposal only includes measurements w/o FW overhead. Next step would be adding FW overhead (called into a c-function interrupt handler)
2. Jeremy, I can present this proposal at Monday's meeting.

Thanks,
Ronen

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Today's Topics:

   1. Re: PR - RV interrupt latency benchmark proposal (Jon Taylor)
   2. Re: PR - RV interrupt latency benchmark proposal (Jeremy Bennett)


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Message: 1
Date: Fri, 13 Nov 2020 08:00:48 +0000
From: Jon Taylor <Jon.Taylor at arm.com>
To: "embench at lists.librecores.org" <embench at lists.librecores.org>
Cc: nd <nd at arm.com>
Subject: Re: [Embench] PR - RV interrupt latency benchmark proposal
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        <AM5PR0801MB16511F6DCDEF4918FE04543393E60 at AM5PR0801MB1651.eurprd08.prod.outlook.com>

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Hi Ronen,

Thanks for sharing this. Please can you clarify the macros M_PSP_PUSH and M_PSP_POP? I can’t see them in the embench tree anywhere. I assume they’re some sort of context save/restore.

What I would observe is that by stopping the timer as soon as you enter the ASM interrupt handler, there’s no timing of a C prologue that you’d need if the handler was a c-function (or called into a c-function). Would it be more representative to stop the timer once the code has reached the specific C handler function?

Regards,

Jon

From: Embench <embench-bounces at lists.librecores.org> On Behalf Of Ronen Haen
Sent: 10 November 2020 07:57
To: embench at lists.librecores.org
Subject: [Embench] PR - RV interrupt latency benchmark proposal

Hi All,

I’ve created a PR https://github.com/embench/embench-context-latency/pull/1
Your comments would be much appreciated.

Thanks,
Ronen

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Message: 2
Date: Fri, 13 Nov 2020 08:25:29 +0000
From: Jeremy Bennett <jeremy.bennett at embecosm.com>
To: embench at lists.librecores.org
Subject: Re: [Embench] PR - RV interrupt latency benchmark proposal
Message-ID: <a56992e2-3f6c-cedb-8398-4f17f7a26920 at embecosm.com>
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On 10/11/2020 07:57, Ronen Haen wrote:
> Hi All,
>
> I’ve created a PR
> https://github.com/embench/embench-context-latency/pull/1
>
> Your comments would be much appreciated.

Hi Ronen,

Thanks for your work on this. Would you be willing to present it at Monday's meeting?

Best wishes,


Jeremy

>
>
>
> Thanks,
>
> Ronen
>
>
>
>


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