<div dir="ltr"><span id="gmail-docs-internal-guid-389f7d4c-1556-5399-346e-592fd070c4dd"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Hi All,</span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap"><br></span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">I am using Kilo release 1:2015.1.4-0ubuntu2 for my lab deployment on single physical host. The issue is that I am getting very low performance when I launch multiple VM instances. The first one boots up within seconds but the second takes noticeable time. If I instantiate the third instance when two instances are already running, it may take 30 minutes to come up. Moreover, the CPU idle % for a given instance keeps decreasing as number of running instances increase.</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">I am suspecting that this behavior is because be lack of bounding of vCPUs with physical CPUs.</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Because of single node installation, the compute node itself becomes virtualized and run my instances within it. How do I bound my vCPU all the way to the physical host? I did not see any documentation regarding this for Kilo release and there is no mention of bounding CPU for the virtualized compute node on single node installation.</span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">This is the specification of the host:</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Architecture:          x86_64</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">CPU op-mode(s):        32-bit, 64-bita</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Byte Order:            Little Endian</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">CPU(s):                36</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">On-line CPU(s) list:   0-35</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Thread(s) per core:    2</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Core(s) per socket:    18</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Socket(s):             1</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">NUMA node(s):          1</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Vendor ID:             GenuineIntel</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">CPU family:            6</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Model:                 63</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Stepping:              2</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">CPU MHz:               1200.000</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">BogoMIPS:              4599.94</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Virtualization:        VT-x</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">L1d cache:             32K</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">L1i cache:             32K</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">L2 cache:              256K</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">L3 cache:              46080K</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">NUMA node0 CPU(s):     0-35</span></p><br><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Spec. for the compute node:</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Architecture:          x86_64</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">CPU op-mode(s):        32-bit, 64-bit</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Byte Order:            Little Endian</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">CPU(s):                26</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">On-line CPU(s) list:   0-25</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Thread(s) per core:    1</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Core(s) per socket:    1</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Socket(s):             26</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">NUMA node(s):          1</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Vendor ID:             GenuineIntel</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">CPU family:            6</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Model:                 6</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Stepping:              3</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">CPU MHz:               2299.996</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">BogoMIPS:              4599.99</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Virtualization:        VT-x</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Hypervisor vendor:     KVM</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Virtualization type:   full</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">L1d cache:             32K</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">L1i cache:             32K</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">L2 cache:              4096K</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">NUMA node0 CPU(s):     0-25</span></p><br><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Spec for my instance:</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Architecture:          x86_64</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">CPU op-mode(s):        32-bit, 64-bit</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Byte Order:            Little Endian</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">CPU(s):                4</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">On-line CPU(s) list:   0-3</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Thread(s) per core:    1</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Core(s) per socket:    1</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Socket(s):             4</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">NUMA node(s):          1</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Vendor ID:             GenuineIntel</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">CPU family:            15</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Model:                 6</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Stepping:              1</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">CPU MHz:               2299.994</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">BogoMIPS:              4599.98</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Virtualization:        VT-x</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Hypervisor vendor:     KVM</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Virtualization type:   full</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">L1d cache:             32K</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">L1i cache:             32K</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">L2 cache:              4096K</span></p><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">NUMA node0 CPU(s):     0-3</span></span><br><div><span><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap"><br></span></span></div><div><span><span style="font-size:14.6667px;font-family:arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Thanks</span></span></div></div>