Kernel Comparison: Linux (2.6.28) versus Windows (Vista SP1)
Process
Process Unit
| Process (unit) |
Linux |
Windows |
| process - nomenclature |
task |
container, holds at least one thread |
| process - holds address space, handle table, statistics |
Y |
Y |
| parent-child relationship |
Y |
N |
Thread
| Thread |
Linux |
Windows |
| thread model |
1×1' |
m×n |
| preemptive thread scheduling |
Y |
Y' |
| thread |
Y (tasks can24 |
Y |
| POSIX Threads |
Y' |
N
Y (add-on)'
|
Fiber
| Fiber |
Linux |
Windows |
| fiber (user-space thread) |
Y |
Y |
Process Performance
| Process, Thread, Fiber (performance) |
Linux |
Windows |
| process cheap |
Y' |
N' |
| process cheap - benchmark |
719K cycles10' |
5,376K cycles10' |
| thread cheap |
Y' |
Y' |
| fiber cheap |
Y' |
Y' |
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Johnathon Weare © Johnny Weare 2009
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