From: George Dunlap <george.dunlap@eu.citrix.com>
To: Dario Faggioli <dario.faggioli@citrix.com>,
Xen-devel <xen-devel@lists.xen.org>
Cc: wei.liu2@citrix.com, Ian.Campbell@citrix.com,
andrew.cooper3@citrix.com, Dongxiao Xu <dongxiao.xu@intel.com>,
JBeulich@suse.com, Chao Peng <chao.p.peng@linux.intel.com>
Subject: Re: [RFC PATCH 0/7] Intel Cache Monitoring: Current Status and Future Opportunities
Date: Wed, 8 Apr 2015 12:30:28 +0100 [thread overview]
Message-ID: <55251154.3020807@eu.citrix.com> (raw)
In-Reply-To: <20150404020423.22875.23590.stgit@Solace.station>
On 04/04/2015 03:14 AM, Dario Faggioli wrote:
> ### Per-vCPU cache monitoring
>
> This means being able to tell how much of the L3 is being used by each vCPU.
> Monitoring the cache occupancy of a specific domain, would still be possible,
> just by summing up the contributions from all the domain's vCPUs.
One note about this -- vcpu cache utilization may be predictive
short-term, but long-term it's probably less important because the guest
may move processes between vcpus. So it may make sense to leave the
occupancy stats on a per-domain basis anyway.
Thoughts?
-George
next prev parent reply other threads:[~2015-04-08 11:30 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-04 2:14 [RFC PATCH 0/7] Intel Cache Monitoring: Current Status and Future Opportunities Dario Faggioli
2015-04-04 2:14 ` [RFC PATCH 1/7] x86: improve psr scheduling code Dario Faggioli
2015-04-06 13:48 ` Konrad Rzeszutek Wilk
2015-04-04 2:14 ` [RFC PATCH 2/7] Xen: x86: print max usable RMID during init Dario Faggioli
2015-04-06 13:48 ` Konrad Rzeszutek Wilk
2015-04-07 10:11 ` Dario Faggioli
2015-04-04 2:14 ` [RFC PATCH 3/7] xen: psr: reserve an RMID for each core Dario Faggioli
2015-04-06 13:59 ` Konrad Rzeszutek Wilk
2015-04-07 10:19 ` Dario Faggioli
2015-04-07 13:57 ` Konrad Rzeszutek Wilk
2015-04-07 8:24 ` Chao Peng
2015-04-07 10:07 ` Dario Faggioli
2015-04-08 13:28 ` George Dunlap
2015-04-08 14:03 ` Dario Faggioli
2015-04-04 2:14 ` [RFC PATCH 4/7] xen: libxc: libxl: report per-CPU cache occupancy up to libxl Dario Faggioli
2015-04-04 2:14 ` [RFC PATCH 5/7] xen: libxc: libxl: allow for attaching and detaching a CPU to CMT Dario Faggioli
2015-04-04 2:15 ` [RFC PATCH 6/7] xl: report per-CPU cache occupancy up to libxl Dario Faggioli
2015-04-04 2:15 ` [RFC PATCH 7/7] xl: allow for attaching and detaching a CPU to CMT Dario Faggioli
2015-04-07 8:19 ` [RFC PATCH 0/7] Intel Cache Monitoring: Current Status and Future Opportunities Chao Peng
2015-04-07 9:51 ` Dario Faggioli
2015-04-07 10:27 ` Andrew Cooper
2015-04-07 13:10 ` Dario Faggioli
2015-04-08 5:59 ` Chao Peng
2015-04-08 8:23 ` Dario Faggioli
2015-04-08 8:53 ` Andrew Cooper
2015-04-08 8:55 ` Chao Peng
2015-04-09 15:44 ` Meng Xu
2015-04-08 11:27 ` George Dunlap
2015-04-08 13:29 ` Dario Faggioli
2015-04-08 11:30 ` George Dunlap [this message]
2015-04-08 13:16 ` Dario Faggioli
2015-04-09 15:37 ` Meng Xu
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