Editing Performance/LAMP

=== Benchmark Description ===
LAMP (acronym for Linux, Apache, MySQL, PHP) software stack is widely used for building modern web sites. We measure not only performance (how many requests can deliver server), but also maximum response time - to understand QoS.

=== Implementation ===

To measure LAMP software stack performance and density we use DVD-Store E-Commerce benchmark developed by [http://linux.dell.com/dvdstore/ Dell]. 

=== Testbed Configuration ===
Server: 4xHexCore Intel Xeon (2.66 GHz), 64 GB RAM, HP MSA1500 SAN Storage, 8 SATA (7200 RPM) Disks in RAID0

Client: 4xHexCore Intel Xeon (2.136 GHz), 32 GB RAM

Network: Gbit direct server<>client connection

Virtualization Software: ESXi4.1upd1, XenServer5.6fp1, HyperV (R2), OpenVZ (RH6) 2.6.32-042test006.1.x86_64

Guest OS: Centos 5.5 x86_64

Software and Tunings:
* Each VM/CT was configured with 1 vCPU, 1 GB RAM
* Small db was deployed from DVD Store samples
* Dvd Store benchmark client run string: ds2webdriver.exe --target=172.0.1.%VM% --think_time=0.05 --n_threads=3 --warmup_time=10 --run_time=10 --db_size_str=S --n_line_items=1 --pct_newcustomers=1
* Firewall was turned off
* All other tunings were left at default values

=== Benchmark Results ===

[[File:lamp_performance_v2.png]]


[[File:lamp_rt_v2.png]]


=== Summary ===

* OpenVZ shows the best performance over solutions tested: OpenVZ 38% faster than XenServer and more than x2 times faster than HyperV and ESXi
* OpenVZ shows the best response time over solutions tested: OpenVZ has 33% better response time than ESXi and x2 times better response time than XenServer and HyperV