From: David Vrabel <david.vrabel@citrix.com>
To: Wei Liu <wei.liu2@citrix.com>
Cc: netdev@vger.kernel.org, konrad.wilk@oracle.com,
ian.campbell@citrix.com, xen-devel@lists.xen.org
Subject: Re: [PATCH net-next 2/3] xen-netback: switch to per-cpu scratch space
Date: Fri, 24 May 2013 13:24:41 +0100 [thread overview]
Message-ID: <519F5C09.3030502__42141.3777549334$1369398409$gmane$org@citrix.com> (raw)
In-Reply-To: <1369391553-16835-3-git-send-email-wei.liu2@citrix.com>
On 24/05/13 11:32, Wei Liu wrote:
> There are maximum nr_onlie_cpus netback threads running. We can make use of
> per-cpu scratch space to reduce the size of buffer space when we move to 1:1
> model.
How much memory does this actually save? At first glance the savings
don't seem worth it for the extra complexity wrt hotplugged VCPUs etc.
David
next prev parent reply other threads:[~2013-05-24 12:24 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-24 10:32 [PATCH net-next 0/3] xen-netback: switch to NAPI + kthread 1:1 model Wei Liu
2013-05-24 10:32 ` [PATCH net-next 1/3] xen-netback: page pool support Wei Liu
2013-05-24 10:32 ` Wei Liu
2013-05-24 12:44 ` David Vrabel
2013-05-24 12:44 ` [Xen-devel] " David Vrabel
2013-05-24 13:25 ` Wei Liu
2013-05-24 13:25 ` Wei Liu
2013-05-24 13:34 ` Wei Liu
2013-05-24 13:34 ` [Xen-devel] " Wei Liu
2013-05-24 10:32 ` [PATCH net-next 2/3] xen-netback: switch to per-cpu scratch space Wei Liu
2013-05-24 10:32 ` Wei Liu
2013-05-24 12:24 ` David Vrabel [this message]
2013-05-24 12:24 ` [Xen-devel] " David Vrabel
2013-05-24 12:31 ` Wei Liu
2013-05-24 12:31 ` Wei Liu
2013-05-24 10:32 ` [PATCH net-next 3/3] xen-netback: switch to NAPI + kthread 1:1 model Wei Liu
2013-05-24 10:32 ` Wei Liu
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