I am running a Xen PV on a Quad-Core 3.3GHz E3-1230-V2 Xeon Ivy Bridge, 8GB RAM, 2 X 1TB SAS with 8 threads. One thread is pinned to Dom0. I had setup a VPS with 1024MB RAM and 50GB HD. Capped at 100% of one core but not pinned, with 4vCPUs. DomU is running CentOS 6.3, Dom0 uses virtualizor as the frontend panel. When I ran benchmarks I got some... interesting results:
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Version 5.1.3 Based on the Byte Magazine Unix Benchmark
Multi-CPU version Version 5 revisions by Ian Smith,
Sunnyvale, CA, USA
January 13, 2011 johantheghost at yahoo period com
1 x Dhrystone 2 using register variables 1 2 3 4 5 6 7 8 9 10
1 x Double-Precision Whetstone 1 2 3 4 5 6 7 8 9 10
1 x Execl Throughput 1 2 3
1 x File Copy 1024 bufsize 2000 maxblocks 1 2 3
1 x File Copy 256 bufsize 500 maxblocks 1 2 3
1 x File Copy 4096 bufsize 8000 maxblocks 1 2 3
1 x Pipe Throughput 1 2 3 4 5 6 7 8 9 10
1 x Pipe-based Context Switching 1 2 3 4 5 6 7 8 9 10
1 x Process Creation 1 2 3
1 x System Call Overhead 1 2 3 4 5 6 7 8 9 10
1 x Shell Scripts (1 concurrent) 1 2 3
1 x Shell Scripts (8 concurrent) 1 2 3
4 x Dhrystone 2 using register variables 1 2 3 4 5 6 7 8 9 10
4 x Double-Precision Whetstone 1 2 3 4 5 6 7 8 9 10
4 x Execl Throughput 1 2 3
4 x File Copy 1024 bufsize 2000 maxblocks 1 2 3
4 x File Copy 256 bufsize 500 maxblocks 1 2 3
4 x File Copy 4096 bufsize 8000 maxblocks 1 2 3
4 x Pipe Throughput 1 2 3 4 5 6 7 8 9 10
4 x Pipe-based Context Switching 1 2 3 4 5 6 7 8 9 10
4 x Process Creation 1 2 3
4 x System Call Overhead 1 2 3 4 5 6 7 8 9 10
4 x Shell Scripts (1 concurrent) 1 2 3
4 x Shell Scripts (8 concurrent) 1 2 3
========================================================================
BYTE UNIX Benchmarks (Version 5.1.3)
System: testraid.bitronictech.net: GNU/Linux
OS: GNU/Linux -- 2.6.32-279.el6.x86_64 -- #1 SMP Fri Jun 22 12:19:21 UTC 2012
Machine: x86_64 (x86_64)
Language: en_US.utf8 (charmap="UTF-8", collate="UTF-8")
CPU 0: Intel(R) Xeon(R) CPU E3-1230 V2 @ 3.30GHz (6585.0 bogomips)
x86-64, MMX, Physical Address Ext, SYSCALL/SYSRET, Intel virtualization
CPU 1: Intel(R) Xeon(R) CPU E3-1230 V2 @ 3.30GHz (6585.0 bogomips)
x86-64, MMX, Physical Address Ext, SYSCALL/SYSRET, Intel virtualization
CPU 2: Intel(R) Xeon(R) CPU E3-1230 V2 @ 3.30GHz (6585.0 bogomips)
x86-64, MMX, Physical Address Ext, SYSCALL/SYSRET, Intel virtualization
CPU 3: Intel(R) Xeon(R) CPU E3-1230 V2 @ 3.30GHz (6585.0 bogomips)
x86-64, MMX, Physical Address Ext, SYSCALL/SYSRET, Intel virtualization
01:46:04 up 54 min, 1 user, load average: 0.17, 0.04, 0.17; runlevel 3
Benchmark Run: Thu Nov 15 2012 01:46:04 - 02:14:17
4 CPUs in system; running 1 parallel copy of tests
Dhrystone 2 using register variables 36081254.9 lps (10.0 s, 7 samples)
Double-Precision Whetstone 4007.1 MWIPS (9.8 s, 7 samples)
Execl Throughput 671.9 lps (29.5 s, 2 samples)
File Copy 1024 bufsize 2000 maxblocks 293866.3 KBps (30.0 s, 2 samples)
File Copy 256 bufsize 500 maxblocks 76780.8 KBps (30.1 s, 2 samples)
File Copy 4096 bufsize 8000 maxblocks 940053.1 KBps (30.0 s, 2 samples)
Pipe Throughput 429204.8 lps (10.0 s, 7 samples)
Pipe-based Context Switching 75300.2 lps (10.0 s, 7 samples)
Process Creation 1281.5 lps (30.0 s, 2 samples)
Shell Scripts (1 concurrent) 906.8 lpm (60.1 s, 2 samples)
Shell Scripts (8 concurrent) 148.1 lpm (60.2 s, 2 samples)
System Call Overhead 394699.7 lps (10.0 s, 7 samples)
System Benchmarks Index Values BASELINE RESULT INDEX
Dhrystone 2 using register variables 116700.0 36081254.9 3091.8
Double-Precision Whetstone 55.0 4007.1 728.6
Execl Throughput 43.0 671.9 156.3
File Copy 1024 bufsize 2000 maxblocks 3960.0 293866.3 742.1
File Copy 256 bufsize 500 maxblocks 1655.0 76780.8 463.9
File Copy 4096 bufsize 8000 maxblocks 5800.0 940053.1 1620.8
Pipe Throughput 12440.0 429204.8 345.0
Pipe-based Context Switching 4000.0 75300.2 188.3
Process Creation 126.0 1281.5 101.7
Shell Scripts (1 concurrent) 42.4 906.8 213.9
Shell Scripts (8 concurrent) 6.0 148.1 246.8
System Call Overhead 15000.0 394699.7 263.1
========
System Benchmarks Index Score 402.4
Benchmark Run: Thu Nov 15 2012 02:14:17 - 02:42:47
4 CPUs in system; running 4 parallel copies of tests
Dhrystone 2 using register variables 19209588.0 lps (10.1 s, 7 samples)
Double-Precision Whetstone 2115.9 MWIPS (9.0 s, 7 samples)
Execl Throughput 649.2 lps (29.9 s, 2 samples)
File Copy 1024 bufsize 2000 maxblocks 76680.8 KBps (30.1 s, 2 samples)
File Copy 256 bufsize 500 maxblocks 20547.6 KBps (30.1 s, 2 samples)
File Copy 4096 bufsize 8000 maxblocks 268725.1 KBps (30.1 s, 2 samples)
Pipe Throughput 228735.3 lps (10.0 s, 7 samples)
Pipe-based Context Switching 38611.6 lps (10.1 s, 7 samples)
Process Creation 1314.8 lps (30.0 s, 2 samples)
Shell Scripts (1 concurrent) 1195.1 lpm (60.2 s, 2 samples)
Shell Scripts (8 concurrent) 173.6 lpm (60.6 s, 2 samples)
System Call Overhead 218916.0 lps (10.1 s, 7 samples)
System Benchmarks Index Values BASELINE RESULT INDEX
Dhrystone 2 using register variables 116700.0 19209588.0 1646.1
Double-Precision Whetstone 55.0 2115.9 384.7
Execl Throughput 43.0 649.2 151.0
File Copy 1024 bufsize 2000 maxblocks 3960.0 76680.8 193.6
File Copy 256 bufsize 500 maxblocks 1655.0 20547.6 124.2
File Copy 4096 bufsize 8000 maxblocks 5800.0 268725.1 463.3
Pipe Throughput 12440.0 228735.3 183.9
Pipe-based Context Switching 4000.0 38611.6 96.5
Process Creation 126.0 1314.8 104.3
Shell Scripts (1 concurrent) 42.4 1195.1 281.9
Shell Scripts (8 concurrent) 6.0 173.6 289.4
System Call Overhead 15000.0 218916.0 145.9
========
System Benchmarks Index Score 231.3