New data file:
  $ gcc -o lines lines.c
  $ tar xzf llvm-8.0.0.src.tar.xz
  $ find llvm-8.0.0.src -type f | xargs cat | tr -sc 'a-zA-Z0-9_' '\n' | perl -ne 'print unless length($_) > 1000;' | ./lines > words.txt

  Implementation	Mem/MB	Time

  MT C++ wp-perf	287	3.14s user 0.16s system 286% cpu 1.149 total
  MT go wp-mt		354	4.23s user 0.20s system 263% cpu 1.681 total
  MT Rust wp-rs		264	3.80s user 0.26s system 221% cpu 1.832 total
  MT rustwp		275	6.08s user 0.71s system 191% cpu 3.546 total
  MT Java wpck		859	14.56s user 1.10s system 277% cpu 5.649 total

  C wp2 (gcc 8.3.0)	31	3.74s user 0.17s system 99% cpu 3.914 total
  C (gcc 8.3.0)		43	3.80s user 0.13s system 99% cpu 3.935 total
  Rust wpopt 1.33.0	250	5.26s user 0.44s system 99% cpu 5.712 total
  C++ (sparsepp)	62	6.60s user 0.22s system 99% cpu 6.816 total
  Rust wpb 1.33.0	59	7.08s user 0.27s system 99% cpu 7.348 total
  Rust 1.33.0		74	7.71s user 0.40s system 99% cpu 8.113 total
  C++ (g++ 8.3.0)	78	7.87s user 0.29s system 99% cpu 8.162 total
  C++/Boost 2.68	57	8.12s user 0.70s system 99% cpu 8.822 total
  mawk 1.3.4		55	8.21s user 0.31s system 101% cpu 8.431 total
  Go dev 1.12.1+	107	9.57s user 0.85s system 102% cpu 10.172 total
  LuaJIT 2.0.5		455	10.19s user 0.49s system 99% cpu 10.680 total
  Java wp2 11.0.2	441	10.63s user 0.51s system 118% cpu 9.417 total
  PHP 7.1.27		61	10.72s user 0.24s system 99% cpu 10.960 total
  Python 2.7.15		127	12.98s user 0.40s system 99% cpu 13.431 total
  C++20 (ranges)	62	13.91s user 0.18s system 99% cpu 14.094 total
  Java 11.0.2		462	15.01s user 1.14s system 120% cpu 13.419 total
  Perl 5.28.0		139	15.15s user 0.24s system 99% cpu 15.392 total
  Go 1.4.3		109	15.45s user 0.89s system 100% cpu 16.317 total
  OCaml 4.09.0		77	16.57s user 0.16s system 99% cpu 16.750 total
  Python 3 7.2		109	17.20s user 0.26s system 99% cpu 17.469 total
  Lua 5.2.4		616	17.46s user 0.81s system 99% cpu 18.267 total
  Go (gccgo 8.3.0)	123	20.03s user 1.55s system 103% cpu 20.842 total
  sh				24.15s user 2.06s system 110% cpu 23.619 total
  JS (node 10.15.3)	934	29.10s user 2.19s system 106% cpu 29.309 total
  Ruby 2.6.2p47		111	36.79s user 0.30s system 99% cpu 37.117 total
  C# (mono 2.0.1)	
  Tcl 8.5.5		
  Scheme (MZ 4.1.3)	
  Haskell (ghc 6.10.1)