null-loop
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Calls the null syscall in an infinite loop. Used for benchmarking with
a drex--murgiahack kernel configured with 'CONFIG_SYSCALL_DUMP=y'.
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Download null-loop.tar.gz.
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localmigration
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It migrates continuously to another function in the same address space,
that immediately migrates back.
A drex--murgiahack kernel configured with 'CONFIG_SYSCALL_TEMP=y' is needed
to run this executable.
Setting CONFIG_SYSCALL_DUMP=y in drex configuration will give interesting
values on thread migrating performance.
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Nov. 25th, 2005: I was able to put a bug in this 3 lines assembler file. Fixed now.
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Download localmigration.tar.gz.
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capbased-localmigration
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Like localmigration except that it uses real capability based syscalls.
To run this you need drex--murgiahack--0.0.2 or higher and no special kernel configurations.
Setting CONFIG_SYSCALL_DUMP=y in drex configuration will give interesting
values on thread migrating performance, and comparing them with localmigration ones is useful to study the capability system's overhead.
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Download capbased-localmigration.tar.gz.
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clonemigration
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Like capbased-localmigration except that it migrates to init's clone address space, thus effectively switching page directories.
To run this you need drex--murgiahack--0.0.3 or higher configured with CONFIG_INIT_CLONE=y.
Setting CONFIG_SYSCALL_DUMP=y in drex configuration will give interesting
values on thread migrating and context switching performance performance, and comparing them with capbased-localmigration ones is useful to study the address space switching's overhead.
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Download clonemigration.tar.gz.
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