From: "Srivatsa S. Bhat" <srivatsa@csail.mit.edu>
To: Dexuan Cui <decui@microsoft.com>
Cc: Saurabh Singh Sengar <ssengar@linux.microsoft.com>,
Nuno Das Neves <nunodasneves@linux.microsoft.com>,
KY Srinivasan <kys@microsoft.com>,
Haiyang Zhang <haiyangz@microsoft.com>,
"wei.liu@kernel.org" <wei.liu@kernel.org>,
"linux-hyperv@vger.kernel.org" <linux-hyperv@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Saurabh Singh Sengar <ssengar@microsoft.com>
Subject: Re: [PATCH] Drivers: hv: vmbus: Deferring per cpu tasks
Date: Fri, 26 Jul 2024 06:34:53 +0000 [thread overview]
Message-ID: <ZqNDjUALdN2Qtop6@csail.mit.edu> (raw)
In-Reply-To: <SA1PR21MB1317797B68A7AFCD8D75650ABFB42@SA1PR21MB1317.namprd21.prod.outlook.com>
On Fri, Jul 26, 2024 at 12:01:33AM +0000, Dexuan Cui wrote:
> > From: Saurabh Singh Sengar <ssengar@linux.microsoft.com>
> > Sent: Thursday, July 25, 2024 8:35 AM
> > Subject: Re: [PATCH] Drivers: hv: vmbus: Deferring per cpu tasks
>
> Without the patch, I think the current CPU uses IPIs to let the other
> CPUs, one by one, run the function calls, and synchronously waits
> for the function calls to finish.
>
> IMO the patch is not "Deferring per cpu tasks". "Defer" means "let it
> happen later". Here it schedules work items to different CPUs, and
> the work items immediately start to run on these CPUs.
>
> I would suggest a more accurate subject:
> Drivers: hv: vmbus: Run hv_synic_init() concurrently
>
It would be great to call out the "why" as well in the title,
something like:
Drivers: hv: vmbus: Speed-up booting by running hv_synic_init() concurrently
Regards,
Srivatsa
Microsoft Linux Systems Group
next prev parent reply other threads:[~2024-07-26 6:35 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-25 5:26 [PATCH] Drivers: hv: vmbus: Deferring per cpu tasks Saurabh Sengar
2024-07-25 15:23 ` Nuno Das Neves
2024-07-25 15:35 ` Saurabh Singh Sengar
2024-07-26 0:01 ` Dexuan Cui
2024-07-26 5:26 ` Saurabh Singh Sengar
2024-07-26 6:02 ` Dexuan Cui
2024-07-26 6:34 ` Srivatsa S. Bhat [this message]
2024-07-26 11:26 ` Saurabh Singh Sengar
2024-07-27 12:53 ` Srivatsa S. Bhat
2024-07-28 4:32 ` Michael Kelley
2024-07-28 9:18 ` Saurabh Singh Sengar
2024-07-28 14:06 ` Michael Kelley
2024-07-28 15:40 ` Saurabh Singh Sengar
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