From: Mathias Nyman <mathias.nyman@linux.intel.com>
To: Mikhail Gavrilov <mikhail.v.gavrilov@gmail.com>
Cc: "Christian A. Ehrhardt" <lk@c--e.de>,
niklas.neronin@linux.intel.com,
Linux List Kernel Mailing <linux-kernel@vger.kernel.org>,
Greg KH <gregkh@linuxfoundation.org>,
linux-usb@vger.kernel.org
Subject: Re: This is the fourth time I’ve tried to find what led to the regression of outgoing network speed and each time I find the merge commit 8c94ccc7cd691472461448f98e2372c75849406c
Date: Thu, 8 Feb 2024 17:43:44 +0200 [thread overview]
Message-ID: <a026ecd8-6fba-017d-d673-0d0759a37ed8@linux.intel.com> (raw)
In-Reply-To: <CABXGCsN5_O3iKDOyYxtsGTGDA6fw4962CjzXLSnOK3rscELq+Q@mail.gmail.com>
On 8.2.2024 12.32, Mikhail Gavrilov wrote:
> On Thu, Feb 8, 2024 at 2:23 PM Mathias Nyman
> <mathias.nyman@linux.intel.com> wrote:
>>
>> My guess is that CPU0 spends more time with interrupts disabled than other CPUs.
>> Either because it's handling interrupts from some other hardware, or running
>> code that disables interrupts (for example kernel code inside spin_lock_irq),
>> and thus not able to handle network adapter interrupts at the same rate as CPU23
>>
>
> Can this be fixed?
Not sure, I'm not that familiar with this area.
Maybe running irqbalance could help?
Thanks
Mathias
next prev parent reply other threads:[~2024-02-08 15:42 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-03 1:02 This is the fourth time I’ve tried to find what led to the regression of outgoing network speed and each time I find the merge commit 8c94ccc7cd691472461448f98e2372c75849406c Mikhail Gavrilov
2024-02-03 1:08 ` Rahul Rameshbabu
2024-02-03 1:15 ` Randy Dunlap
2024-02-03 1:16 ` Randy Dunlap
2024-02-03 2:32 ` Jakub Kicinski
2024-02-03 18:20 ` Christian A. Ehrhardt
2024-02-04 20:47 ` Christian A. Ehrhardt
2024-02-05 21:08 ` Mikhail Gavrilov
2024-02-06 11:26 ` Mathias Nyman
2024-02-06 16:12 ` Mikhail Gavrilov
2024-02-07 10:40 ` Mathias Nyman
2024-02-07 11:55 ` Mikhail Gavrilov
2024-02-08 9:25 ` Mathias Nyman
2024-02-08 10:32 ` Mikhail Gavrilov
2024-02-08 15:43 ` Mathias Nyman [this message]
2024-02-16 6:15 ` This is the fourth time Iâve " Linux regression tracking (Thorsten Leemhuis)
2024-02-19 9:41 ` This is the fourth time I’ve " Mikhail Gavrilov
2024-02-20 23:19 ` Mikhail Gavrilov
2024-02-20 23:41 ` Randy Dunlap
2024-02-20 23:43 ` Randy Dunlap
2024-02-21 13:44 ` Mathias Nyman
2024-02-26 5:45 ` This is the fourth time I've " Linux regression tracking (Thorsten Leemhuis)
2024-02-26 9:24 ` Mathias Nyman
2024-02-26 9:51 ` Linux regression tracking (Thorsten Leemhuis)
2024-02-26 10:54 ` Mathias Nyman
2024-02-26 18:09 ` Thomas Gleixner
2024-02-27 17:08 ` mikhail.v.gavrilov
2024-02-27 17:23 ` Thomas Gleixner
[not found] ` <960fd112b294a902e1bea1fdd8e04a708a05cf45.camel@gmail.com>
2024-02-29 9:41 ` Mikhail Gavrilov
2024-03-04 14:10 ` Linux regression tracking (Thorsten Leemhuis)
2024-02-21 6:48 ` This is the fourth time I’ve " Linux regression tracking #adding (Thorsten Leemhuis)
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