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From: Greg KH <gregkh@linuxfoundation.org>
To: Subhashini Rao Beerisetty <subhashbeerisetty@gmail.com>
Cc: linux-pci@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>,
	kernelnewbies <kernelnewbies@kernelnewbies.org>
Subject: Re: PCI: latency
Date: Sat, 4 Dec 2021 09:18:40 +0100	[thread overview]
Message-ID: <YaskYBhmI6Hncaey@kroah.com> (raw)
In-Reply-To: <CAPY=qRQJ-YbRi0AStrytsE3ke4vFN9K4Cos2T+b1JKDPJGUVOg@mail.gmail.com>

On Fri, Dec 03, 2021 at 10:30:58PM +0530, Subhashini Rao Beerisetty wrote:
>  [ Please keep me in CC as I'm not subscribed to the list]
> 
> Hi all,
> 
> We are using the Linux OS on an x86_64 machine. I need to measure the
> PCIe latency on my system, does kernel have any latency measurement
> module for the PCIe bus?

How exactly are you going to define PCIe latency?

And what is this going to be used for?

thanks,

greg k-h

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WARNING: multiple messages have this Message-ID (diff)
From: Greg KH <gregkh@linuxfoundation.org>
To: Subhashini Rao Beerisetty <subhashbeerisetty@gmail.com>
Cc: linux-pci@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>,
	kernelnewbies <kernelnewbies@kernelnewbies.org>
Subject: Re: PCI: latency
Date: Sat, 4 Dec 2021 09:18:40 +0100	[thread overview]
Message-ID: <YaskYBhmI6Hncaey@kroah.com> (raw)
In-Reply-To: <CAPY=qRQJ-YbRi0AStrytsE3ke4vFN9K4Cos2T+b1JKDPJGUVOg@mail.gmail.com>

On Fri, Dec 03, 2021 at 10:30:58PM +0530, Subhashini Rao Beerisetty wrote:
>  [ Please keep me in CC as I'm not subscribed to the list]
> 
> Hi all,
> 
> We are using the Linux OS on an x86_64 machine. I need to measure the
> PCIe latency on my system, does kernel have any latency measurement
> module for the PCIe bus?

How exactly are you going to define PCIe latency?

And what is this going to be used for?

thanks,

greg k-h

  reply	other threads:[~2021-12-04  8:18 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-03 17:00 PCI: latency Subhashini Rao Beerisetty
2021-12-03 17:00 ` Subhashini Rao Beerisetty
2021-12-04  8:18 ` Greg KH [this message]
2021-12-04  8:18   ` Greg KH
2021-12-04 14:34 ` latency David Laight
2021-12-04 14:34   ` latency David Laight
2021-12-06 19:39 ` PCI: latency Bjorn Helgaas
2021-12-06 19:39   ` Bjorn Helgaas
  -- strict thread matches above, loose matches on Subject: below --
2003-03-28 23:08 PCI latency Giuliano Pochini
2003-03-28 23:54 ` Jan "Evil Twin" Depner

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