ripgrep/benchsuite/runs/2018-01-08-archlinux-cheetah/README

This directory contains updated benchmarks as of 2018-01-08. They were captured
via the benchsuite script at `benchsuite/benchsuite` from the root of this
repository. The command that was run:

    $ ./benchsuite \
          --dir /tmp/benchsuite \
          --raw runs/2018-01-08-archlinux-cheetah/raw.csv \
          --warmup-iter 1 \
          --bench-iter 5

These results are most directly comparable to the
`2016-09-22-archlinux-cheetah` run in the parent directory.

The versions of each tool are as follows:

    $ grep -V
    grep (GNU grep) 3.1

    $ ag -V
    ag version 2.1.0
    Features:
      +jit +lzma +zlib

    $ sift -V
    sift 0.8.0 (linux/amd64)
    built from commit 2ca94717 (which seems to be 0.9.0)

    $ pt --version
    pt version 2.1.4

    $ ucg -V
    UniversalCodeGrep 0.3.3
    [...]
    Build info

    Repo version: 0.3.3-251-g9b5a3e3

    Compiler info:
     Name ($(CXX)): "g++ -std=gnu++1z"
     Version string: "g++ (GCC) 7.2.1 20171224"

    ISA extensions in use:
     sse4.2: yes
     popcnt: yes

    libpcre info:
     Not linked against libpcre.

    libpcre2-8 info:
     Version: 10.30 2017-08-14
     JIT support built in?: yes
     JIT target architecture: x86 64bit (little endian + unaligned)
     Newline style: LF

The version of ripgrep was compiled from source on commit 85d463c0, with the
simd-accel and avx-accel features enabled:

    $ export RUSTFLAGS="-C target-cpu=native"
    $ cargo build --release --features 'simd-accel avx-accel'