11-09-2010
virtualization (VCPU count according to CPU)
We have purchased four intels xeon processors
IntelŽ XeonŽ Processor E7530 (12M Cache, 1.86 GHz, 5.86 GT/s IntelŽ QPI) with SPEC Code(s) SLBRJ
As per the specification each cpu has 6 cores therefore we have 24 cores (considering 4 cpus).
Now how would i calculate the number of vcpus that can be used while visualization?
This will help use to capacity planning.
Quote:
specification is as below.
IntelŽ XeonŽ Processor E7530
(12M Cache, 1.86 GHz, 5.86 GT/s IntelŽ QPI)
SPECIFICATIONS
Essentials
Status Launched
Launch Date Q1'10
Processor Number E7530
# of Cores 6
# of Threads 12
Clock Speed 1.866 GHz
Max Turbo Frequency 2.133 GHz
L3 Cache 12 MB
IntelŽ QPI Speed 5.86 GT/s
Embedded Options Available
No
Supplemental SKU No
Max TDP 105 W
VID Voltage Range 0.675V-1.35V
Tray 1ku Budgetary Price $1446.00
Package Specifications
TCASE 64°C
Sockets Supported FCLGA1567
Halogen Free Options Available Yes
Advanced Technologies
IntelŽ Turbo Boost Technology
Yes
IntelŽ Hyper-Threading Technology
Yes
IntelŽ Virtualization Technology (VT-x)
Yes
IntelŽ 64
Yes
Enhanced Intel SpeedStepŽ Technology
Yes
Execute Disable Bit Yes
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LEARN ABOUT CENTOS
libpfm_intel_p6
LIBPFM(3) Linux Programmer's Manual LIBPFM(3)
NAME
libpfm_intel_p6 - support for Intel P5 based processors
SYNOPSIS
#include <perfmon/pfmlib.h>
PMU name: pm, ppro, pii, piii, p6
PMU desc: Intel Pentium M, Intel Pentium Pro, Intel Pentium II, Intel Pentium III, Intel P6
DESCRIPTION
The library supports all Intel P6-based processors all the way back to the Pentium Pro. Although all those processors offers the same PMU
architecture, they differ in the events they provide.
MODIFIERS
The following modifiers are supported on all Intel P6 processors:
u Measure at user level which includes privilege levels 1, 2, 3. This corresponds to PFM_PLM3. This is a boolean modifier.
k Measure at kernel level which includes privilege level 0. This corresponds to PFM_PLM0. This is a boolean modifier.
i Invert the meaning of the event. The counter will now count cycles in which the event is not occurring. This is a boolean modifier
e Enable edge detection, i.e., count only when there is a state transition. This is a boolean modifier.
c Set the counter mask value. The mask acts as a threshold. The counter will count the number of cycles in which the number of occur-
rences of the event is greater or equal to the threshold. This is an integer modifier with values in the range [0:255].
AUTHORS
Stephane Eranian <eranian@gmail.com>
September, 2009 LIBPFM(3)