Bug#902624: Please support running in parallel

[Josh Triplett]

Package: diffoscope
Version: 96
Severity: wishlist

I'm running diffoscope on a system with plenty of memory and CPUs;
diffoscope benefits from the memory, but not the CPUs. Could diffoscope
do comparisons in parallel?

-- System Information:
Debian Release: buster/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.16.0-2-amd64 (SMP w/72 CPU cores)
Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE=C.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages diffoscope depends on:
ii  libpython3.6-stdlib    3.6.6~rc1-4
ii  python3                3.6.5-3
ii  python3-distro         1.0.1-2
ii  python3-distutils      3.6.6-1
ii  python3-libarchive-c   2.1-3.1
ii  python3-magic          2:0.4.15-1
ii  python3-pkg-resources  39.2.0-1

Versions of packages diffoscope recommends:
pn  abootimg                                       <none>
ii  acl                                            2.2.52-3+b1
pn  apktool                                        <none>
pn  binutils-multiarch                             <none>
ii  bzip2                                          1.0.6-8.1
pn  caca-utils                                     <none>
pn  colord                                         <none>
pn  db-util                                        <none>
pn  default-jdk-headless | default-jdk | java-sdk  <none>
ii  device-tree-compiler                           1.4.6-1
pn  docx2txt                                       <none>
ii  e2fsprogs                                      1.44.2-1
pn  enjarify                                       <none>
pn  fontforge-extras                               <none>
pn  fp-utils                                       <none>
pn  genisoimage                                    <none>
ii  gettext                                        0.19.8.1-6+b1
ii  ghc                                            8.2.2-4
pn  ghostscript                                    <none>
pn  giflib-tools                                   <none>
pn  gnumeric                                       <none>
pn  imagemagick                                    <none>
pn  jsbeautifier                                   <none>
pn  libarchive-tools                               <none>
pn  llvm                                           <none>
pn  mono-utils                                     <none>
pn  odt2txt                                        <none>
pn  oggvideotools                                  <none>
ii  openssh-client                                 1:7.7p1-2
pn  pgpdump                                        <none>
ii  poppler-utils                                  0.63.0-2
pn  procyon-decompiler                             <none>
pn  python3-argcomplete                            <none>
pn  python3-binwalk                                <none>
ii  python3-debian                                 0.1.32
pn  python3-defusedxml                             <none>
pn  python3-guestfs                                <none>
pn  python3-jsondiff                               <none>
pn  python3-progressbar                            <none>
pn  python3-pyxattr                                <none>
pn  python3-tlsh                                   <none>
pn  r-base-core                                    <none>
pn  sng                                            <none>
pn  sqlite3                                        <none>
pn  squashfs-tools                                 <none>
ii  tcpdump                                        4.9.2-3
ii  unzip                                          6.0-21
ii  vim-common                                     2:8.1.0089-1
pn  xmlutils                                       <none>
ii  xxd                                            2:8.1.0089-1
ii  xz-utils                                       5.2.2-1.3

Versions of packages diffoscope suggests:
ii  libjs-jquery  3.2.1-1

-- no debconf information