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pvf-stack-test

Compares logical stack cost estimation made by wasm-instrument to the real stack frame size.

Do NOT use debug build to run tests, it is incredibly slow. Always build release binary.

Usage

USAGE:
    pvf-stack-test [OPTIONS]

OPTIONS:
    -b, --batch-size <BATCH_SIZE>      Batch size [default: 100]
    -h, --help                         Print help information
    -n, --num-batches <NUM_BATCHES>    Number of batches [default: 160]
    -s, --seed <SEED>                  Reproduce a case for single seed, output
                                       out.<seed>.{wasm|cwasm}
    -t, --single-thread                Run in a single thread
    -v, --save                         Save every .wasm and .cwasm (slow)
    -V, --version                      Print version information
    -w, --wasm <WASM>                  Run on an externally provided .wasm module

Shortcuts

  • make : Generates test.log and dist.dat in standard conditions (16000 samples)
  • make disasm : Produces .wat and .asm for output files (generated with --save or --seed)
  • make clean : Removes output files (generated with --save or --seed), compiled binaries and disassembly results
  • make plot : Plots current dist.dat with gnuplot
  • make calc : Calculates maximum real_stack_size/estimation ratio in the current dist.dat as well as average ratio

Experiments

See here