CODEWITHSUNDEEP
cachinghardwarebandwidth
Jorge Leitao
Jorge Leitao

Reputation: 20163

finding cache L1 and L2 bandwidth

I'm trying to find the bandwidth of my computer's L1 and L2 cache. How can I determine either the theoretical value or the effective value trough benchmarks or so?

Does anyone have any idea how can I do this?

Thank you

Upvotes: 3

Views: 954

Answers (2)

seagaia
seagaia

Reputation: 106

This may be useful. It gives outputs of cache reads/writes and probably has detailed data if you learn how to use it.

http://valgrind.org/docs/manual/cg-manual.html#cg-manual.running-cachegrind

This may be helpful as well. I'm running it and it's spitting out some values I'm not quite sure how to interpret. Doesn't seem to break down L1 vs. L2 but maybe in accordance with valgrind you could figure something out?

http://icl.cs.utk.edu/projects/llcbench/cachebench.html

Upvotes: 3

nixeagle
nixeagle

Reputation: 1002

This is non-free software. But if what you are looking for is a program to tell you the output for your computer you should give CPU-Z (on windows) a try.

If you are looking to determine this vie a program you are writing the answer is highly system dependent. On linux the information is in the /proc/ hierarchy. As for windows I cannot tell you the answer.

Upvotes: 1

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