Performance Study on Virtual Machine Hypervisors.

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Presentation transcript:

Performance Study on Virtual Machine Hypervisors

Xen’s report (1)  Comparison of 3 popular VMMs: Xen, VMware and UML  Benchmark:  The SPEC CPU suite contains a series of long-running computationally- intensive applications intended to measure the performance of a system's processor, memory system, and compiler quality.  A full build of the default configuration of Linux on local disk  PostgreSQL running the OSDB multi-user Information Retrieval (IR) benchmark  PostgreSQL running the OSDB multi-user On-Line Transaction Processing (OLTP) benchmark requires many synchronous disk operations, resulting in many protection domain transitions.  The dbench 2.0 file system single user benchmark, It emulates the load placed on a file server by Windows 95 clients.  SPEC WEB99 is a complex application-level benchmark for evaluating Web servers and the systems that host them

Xen’s report (2)  native Linux (L)  Xen/Linux (X)  VMware Workstation 3.2 (V)  User Mode Linux (U)  Linux Build time  SPEC INT 2000  OSDB-IR  OSDB-OLTP  DBench  SPEC WEB99

VMware’ report (1)  2 VMMs: VMware ESX Server and Xen  Benchmark  The integer component of the SPECcpu2000 benchmark suite, available from SPEC® (Standard Performance Evaluation Corporation), was chosen to represent CPU-intensive applications.  Passmark, a synthetic suite of benchmarks intended to isolate various aspects of workstation performance, was selected to represent desktop-oriented workloads.  Netperf was used to simulate the network usage in a datacenter.  The SPECjbb2005 benchmark suite from SPEC was used to represent the Java applications typically used in the datacenters.  A compile workload — build SPECcpu2000 INT package — was also added to capture typical IT development and test usage in datacenters.

VMware’s report (2): Spec2000 INT

VMware’s report (3): Passmark

VMware’s report (4): Compile

VMware’s report (5): Netperf

VMware’s report (6): Specjob 2005

Discussion  Why different benchmarks lead different results?  Why multiple virtual machine products lead different results?  Performance is really important?  What else could evaluate VMM?