From: "Russell King (Oracle)" <linux@armlinux.org.uk>
To: Li Chen <me@linux.beauty>
Cc: arnd bergmann <arnd@arndb.de>,
linux-arm-kernel <linux-arm-kernel@lists.infradead.org>
Subject: Re: Why GICD_ITARGETSR is not used by Linux
Date: Wed, 21 Sep 2022 08:26:11 +0100 [thread overview]
Message-ID: <Yyq8k1w4HvSdcr8w@shell.armlinux.org.uk> (raw)
In-Reply-To: <1835de59d71.11f05fad11576394.1145073103918319714@linux.beauty>
On Wed, Sep 21, 2022 at 04:34:32AM +0200, Li Chen wrote:
> Hi Russell,
>
> ---- On Tue, 20 Sep 2022 12:14:24 +0200 Russell King (Oracle) wrote ---
> > On Tue, Sep 20, 2022 at 11:09:38AM +0100, Russell King (Oracle) wrote:
> > Oh, I just remembered an additional detail. There was the irqbalance
> > daemon that used to work at that time which would do the distribution
> > from userspace - and it knew various policies about interrupts that
> > were found to be beneficial on x86. Such as not moving busy ethernet
> > interrupts amongst the CPUs due to networking paths being "hot" in the
> > cache, vs other interrupts where that didn't matter so much.
>
> Can you help paste the irqbalance daemon project link? I want to learn more
> about it, thanks.
Searching google for "irqbalance source" gives me as the first link:
https://github.com/Irqbalance/irqbalance
--
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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next prev parent reply other threads:[~2022-09-21 7:27 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-20 1:42 Why GICD_ITARGETSR is not used by Linux Li Chen
2022-09-20 7:04 ` Arnd Bergmann
2022-09-20 9:45 ` Li Chen
2022-09-20 10:09 ` Russell King (Oracle)
2022-09-20 10:14 ` Russell King (Oracle)
2022-09-21 2:34 ` Li Chen
2022-09-21 7:26 ` Russell King (Oracle) [this message]
2022-09-21 7:45 ` Li Chen
2022-09-20 15:37 ` Li Chen
2022-09-20 17:25 ` Russell King (Oracle)
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