linux-kernel - Re: [PATCH 4/4][RFC v2] x86/apic: Spread the vectors by choosing the idlest CPU

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Message-ID: <20170906061545.GA20519@lst.de>
Date:   Wed, 6 Sep 2017 08:15:45 +0200
From:   Christoph Hellwig <hch@....de>
To:     Yu Chen <yu.c.chen@...el.com>
Cc:     Thomas Gleixner <tglx@...utronix.de>, x86@...nel.org,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>, Rui Zhang <rui.zhang@...el.com>,
        LKML <linux-kernel@...r.kernel.org>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Len Brown <lenb@...nel.org>,
        Dan Williams <dan.j.williams@...el.com>,
        Christoph Hellwig <hch@....de>,
        Peter Zijlstra <peterz@...radead.org>
Subject: Re: [PATCH 4/4][RFC v2] x86/apic: Spread the vectors by choosing
        the idlest CPU

On Wed, Sep 06, 2017 at 12:13:38PM +0800, Yu Chen wrote:
> I agree, the driver could be rewritten, but it might take some time, so
> meanwhile I'm looking at also other possible optimization.

Which driver are we talking about anyway?  Let's start looking at it
and fix the issue there.