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Virtualization Boston's Deep Dive Day 2011

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Virtualization Group - Boston > Virtualization Boston's Deep Dive Day 2011 > Deep Dive Day Sessions > 11:30-12:15 B3: Faculty  

Deep Dive Day Sessions: 11:30-12:15 B3: Faculty

Title

11:30-12:15 B3: Faculty 

TimeSlot

B3 

Room

Faculty 

Primary Speaker

Bob Nolan 

DescriptionShort

Improving Disk Latency and Throughput with Vmware.

DescriptionLong

VMware has stated disk latency is a measure of I/O performance and system throughput. Every I/O SCSI command that traverses the virtualization storage stack is overhead for the hypervisor. As the I/O load increases queues fill, disk response times degrade and throughput suffers. There are a variety of ways to address I/O contention on virtual platforms, but most treat the symptoms and not the cause. This presentation examines how the Windows guest systems can be the source of I/O bottlenecks that consume excessive CPU and memory resources. The relationship between the guest file system and physical storage is explained and comparative data captured with VMware’s vscsiStats utility are presented.  The costs of poorly performing guest are also explained in terms of productivity, support and hardware.

Secondary Speaker

 

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Created at 12/21/2010 10:37 AM  by SAM\Tim.Mangan 
Last modified at 3/4/2011 5:55 PM  by SAM\Tim.Mangan