PreliminaryData [FreeBSD WIKI]

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====== Preliminary Data ======

This is a data dump of a bunch of measurements (on a 2-cpu Xeon) until I get the time to sort them out.

===== Kernel version 700028 from Dec. 2006. =====

| kernel | GENERIC |
| SMP | on |
| WITNESS | on |
| INVARIANTS | on |

<code>
                     INDEX VALUES
TEST                                        BASELINE     RESULT      INDEX

Dhrystone 2 using register variables        116700.0  3139464.0      269.0
Double-Precision Whetstone                      55.0      656.1      119.3
Execl Throughput                                43.0      177.6       41.3
File Copy 1024 bufsize 2000 maxblocks         3960.0    22985.0       58.0
File Copy 256 bufsize 500 maxblocks           1655.0     6397.0       38.7
File Copy 4096 bufsize 8000 maxblocks         5800.0    70573.0      121.7
Pipe Throughput                              12440.0    70284.0       56.5
Pipe-based Context Switching                  4000.0    15731.8       39.3
Process Creation                               126.0     1119.1       88.8
Shell Scripts (8 concurrent)                     6.0       32.0       53.3
System Call Overhead                         15000.0    77774.7       51.8
                                                                 =========
     FINAL SCORE                                                      70.0
</code>

| kernel | GENERIC2 |
| SMP | on |
| WITNESS | off |
| INVARIANTS | off |

<code>
                     INDEX VALUES
TEST                                        BASELINE     RESULT      INDEX

Dhrystone 2 using register variables        116700.0  3205621.7      274.7
Double-Precision Whetstone                      55.0      654.8      119.1
Execl Throughput                                43.0      303.3       70.5
File Copy 1024 bufsize 2000 maxblocks         3960.0    82663.0      208.7
File Copy 256 bufsize 500 maxblocks           1655.0    25473.0      153.9
File Copy 4096 bufsize 8000 maxblocks         5800.0   186140.0      320.9
Pipe Throughput                              12440.0   241975.4      194.5
Pipe-based Context Switching                  4000.0    46224.5      115.6
Process Creation                               126.0     2571.1      204.1
Shell Scripts (8 concurrent)                     6.0       53.0       88.3
System Call Overhead                         15000.0   176856.4      117.9
                                                                 =========
     FINAL SCORE                                                     153.8
</code>