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README.md

NoFib: Haskell Benchmark Suite

This is the root directory of the "NoFib Haskell benchmark suite". It should be part of a GHC source tree, that is the 'nofib' directory should be at the same level in the tree as 'compiler' and 'libraries'.

Package Depedencies

Please make sure you have the following packages installed for your system GHC:

  • html
  • regex-compat (will install: mtl, regex-base, regex-posix)

Using

Then, to run the tests, execute:

make clean
make boot
make 2>&1 | tee nofib-log

This will put the results in the file nofib-log. You can pass extra options to a nofib run using the EXTRA_HC_OPTS variable like this:

make clean
make boot
make EXTRA_HC_OPTS="-fllvm" >&1 | tee nofib-llvm-log

To compare the results of multiple runs, use the program in ../utils/nofib-analyse, for example:

nofib-analyse nofib-log-6.4.2 nofib-log-6.6

to generate a comparison of the runs in captured in nofib-log-6.4.2 and nofib-log-6.6. When making comparisons, be careful to ensure that the things that changed between the builds are only the things that you wanted to change. There are lots of variables: machine, GHC version, GCC version, C libraries, static vs. dynamic GMP library, build options, run options, and probably lots more. To be on the safe side, make both runs on the same unloaded machine.

Configuration

There are some options you might want to tweak; search for nofib in ../mk/config.mk, and override settings in ../mk/build.mk as usual.

Extra Metrics: Valgrind

To get instruction counts, memory reads/writes, and "cache misses", you'll need to get hold of Cachegrind, which is part of Valgrind.

Extra Packages

Some benchmarks aren't run by default and require extra packages are installed for the GHC compiler being tested. These packages include:

  • stm - for smp benchmarks