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Message-ID: <562A02D5.9000505@citrix.com> Date: Fri, 23 Oct 2015 10:50:13 +0100 From: Andrew Cooper <andrew.cooper3@...rix.com> To: Joe Jin <joe.jin@...cle.com>, <wei.liu2@...rix.com>, Ian Campbell <ian.campbell@...rix.com>, Boris Ostrovsky <boris.ostrovsky@...cle.com>, Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>, "David S. Miller" <davem@...emloft.net>, Jan Beulich <JBeulich@...e.com> CC: <netdev@...r.kernel.org>, <xen-devel@...ts.xenproject.org> Subject: Re: [Xen-devel] [PATCH V3 0/2] limit xen vnic max queues number to online cpus number On 23/10/15 10:42, Joe Jin wrote: > Currently xen vnic allowed to create lots of queues by set module param > max_queues(both netback and netfront), when queues number larger than > cpus number, it does not help for performance but need more cpu time. > > This patchset limit netback and netfront max queues number to online > cpus number. > > Joe Jin (2): > xen-netback: limit xen vif max queues number to online cpus > xen-netfront: limit vnic max_queues number to online cpus Please do not exclude the possibility for making crazy numbers of queues. I can appreciate the want to prevent people shooting themselves in the foot, but being able oversubscribe the number of queues is important for performance testing. ~Andrew -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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