From: "Derrick, Jonathan" <jonathan.derrick@intel.com>
To: "willy@infradead.org" <willy@infradead.org>
Cc: "linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"dhowells@redhat.com" <dhowells@redhat.com>
Subject: Re: Parallel compilation performance regression
Date: Fri, 19 Jun 2020 14:59:58 +0000 [thread overview]
Message-ID: <bf968a2887536459293eaeb40d354fb365b1438d.camel@intel.com> (raw)
In-Reply-To: <20200619010513.GW8681@bombadil.infradead.org>
On Thu, 2020-06-18 at 18:05 -0700, Matthew Wilcox wrote:
> On Thu, Jun 18, 2020 at 11:52:55PM +0000, Derrick, Jonathan wrote:
> > Hi David,
> >
> > I've been experiencing a performance regression when running a parallel
> > compilation (eg, make -j72) on recent kernels.
>
> I bet you're using a version of make which predates 4.3:
>
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0ddad21d3e99c743a3aa473121dc5561679e26bb
>
I am!
# make --version
GNU Make 4.2.1
Thank you Matthew!
next prev parent reply other threads:[~2020-06-19 16:22 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-18 23:52 Parallel compilation performance regression Derrick, Jonathan
2020-06-19 1:05 ` Matthew Wilcox
2020-06-19 14:59 ` Derrick, Jonathan [this message]
2020-06-20 7:44 ` Sedat Dilek
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