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=== Benchmark Description ===
 
=== Benchmark Description ===
  
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This benchmark tests throughput over 10 Gbit network connection which can be achieved in a virtualized environments, testing two traffic flow directions:
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In this benchmark we measure throughput over 10 Gbit network connection in two directions:
 
* from VM/CT to physical client
 
* from VM/CT to physical client
 
* from physical client to VM/CT
 
* from physical client to VM/CT
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=== Implementation ===
 
=== Implementation ===
  
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To measure network throughput standard performance test '''netperf''' is used. Host with VM/CT and physical client are connected directly using cross cable (without switches, possible other traffic effects etc.)
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To measure network throughput we use standard performance test '''netperf'''. Host with VM/CT and physical client connected are interconnected directly (without switches, etc.)
  
 
=== Testbed Configuration ===
 
=== Testbed Configuration ===
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Hardware:
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Server: 4xHexCore Intel Xeon (2.66 GHz), 32 GB RAM, Intel 82598EB 10-Gigabit network card
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* Server: 4xHexCore Intel Xeon (2.66 GHz), 32 GB RAM, Intel 82598EB 10-Gigabit network card
 
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* Client: 4xHexCore Intel Xeon (2.136 GHz), 32 GB RAM, Intel 82598EB 10-Gigabit network card
 
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* Network: 10Gbit direct server <-> client optical connection
 
  
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Platform:
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Client: 4xHexCore Intel Xeon (2.136 GHz), 32 GB RAM, Intel 82598EB 10-Gigabit network card
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* Virtualization Software: ESXi4.1upd1, XenServer5.6fp1, HyperV (R2), OpenVZ (RH6) 2.6.32-042test006.1.x86_64
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* Guest OS: Centos 5.5 x86_64
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Network: 10Gbit direct server<>client optical connection
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Virtualization Software: ESXi4.1upd1, XenServer5.6fp1, HyperV (R2), OpenVZ (RH6) 2.6.32-042test006.1.x86_64
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Guest OS: Centos 5.5 x86_64
  
 
Software and Tunings:  
 
Software and Tunings:  
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=== Summary ===
 
=== Summary ===
  
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* OpenVZ provides near native 10Gbit network throughput: 9.70Gbit on receive and 9.87Gbit on send
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*OpenVZ support near native 10Gbit network throughput: 9.70Gbit in receive and 9.87Gbit in send tests
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* OpenVZ is the only virtualization solution capable to achieve native 10Gbit throughput in both scenarios
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*OpenVZ shows the best network throughput over all the solutions tested
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* OpenVZ demonstrates >2x times greater performance on receive compared to hypervisors (x2 times faster than ESXi4.1 and x5 times faster than XenServer5.6)
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*In Receive performance test (physical client-> VM/CT) OpenVZ shows great benefits over hypervisors: x2 Times faster than ESXi4.1 and x5 Times faster than XenServer5.6
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=== TODO ===
 
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* record and provide CPU usage details to outline additional low CPU usage in this test case
 

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