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Altera_Forum
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16 years ago

Linux with MMU on NEEK

Hi, all. I'm testing Linux MMU version, on my NEEK. http://www.nioswiki.com/linux It works fine and I can use "bash" shell. This is the evident proof that we are using the true 'fo...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

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But please note that the cache size is limited within 4KB. In present codes, there is no mechanism to avoid the alias problem.

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So it is not correctly implemented. All Altera example designs use much more cache !

What should we do about that ?

I feel that 4K cache will degrade performance a lot.. I did not test this thoroughly, but I once did a speed test with a uCLinux vs a fill lunux design and found that the full Linux design was much slower (up to half speed). I'm not sure about the cache sizes, though

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-Michael