• Download: Microbenchmarks

Dhrystone

1. Download dhrystone: http://fossies.org/linux/privat/old/dhrystone-2.1.tar.gz/
2. Unzip: tar -xzvf dhrystone-2.1.tar.gz
3. Compile: make. Any errors?
4. Fix the compilation errors
5. Why do you think they put those function definition there if they are available in the system?
6. Run the benchmark: ./gcc_dry2. Set the number of iterations to 100000000.
7. Compare the results with the colleague next to you. Are they different?
8. Run with register variables: ./gcc_dry2reg. Set the number of iterations to 100000000.
9. Let's discuss about register variables.

CoreMark

1. Download coremark: http://www.coremark.org/download/download.php
2. Unzip: tar -xzvf coremark_v1.0.tgz
3. Compile: make
4. Run benchmark: make run
5. Compare the results with the colleague next to you. Are they different?

lmbench

1. Download lmbench: http://sourceforge.net/projects/lmbench/?source=dlp
2. Unzip: tar -xzvf lmbench-3.0-a9.tgz
3. Compile: make
4. Run lat_mem_rd: ./bin/x86_64-linux-gnu/lat_mem_rd 250 16 32 64 128 256 512 1024
5. Guess the cache hierarchy and size.

Evaluate context switch overhead

1. run benchmark ./bin/x86_64-linux-gnu/lat_ctx -s 80 2 4 6 8 10 12 14 16 18 20 24 32 48 96
2. Why do you think the results are so close at the beginning?

Run lmbench default template

1. cd scripts
2. ./config-run with MB: 100
3. ./results
4. cd ./results
5. make