====== Benchmarking CPUs with xz ======
Test file: [[http://mattmahoney.net/dc/enwik9.zip]] {{ :xzbench_files:enwik9.zip}}

xz for Windows: [[https://tukaani.org/xz/]] {{ :xzbench_files:xz-5.2.4-windows.zip}}

Procedure:
  - Extract above file
  - Single-threaded test:
    - *nix/WSL: ''time xz -k -T1 enwik9''
    - Windows: ''Measure-Command { .\xz.exe -k -T1 .\enwik9 }''
  - All threads test: (rm enwiki9.xz first!)
    - *nix/WSL: ''time xz -k -T0 enwik9''
    - Windows: ''Measure-Command { .\xz.exe -k -T0 .\enwik9 }''

Multi-testing:

<code>time xz -k enwik9 -T0 ; rm enwik9.xz ; time xz -k enwik9 -T 12 ; rm enwik9.xz ; time xz -k enwik9 -T1 ; rm enwik9.xz</code>
===== Results =====


^  Machine              ^  CPU        ^  OS                         ^  Notes                     ^  -T1  ^ -T0 (specify # threads)  ^
| Precision 5510        | i7-6820HQ   | Windows 10 Enterprise 1903  | 5.2.4 native from tukaani  | 676   | 129 (8 threads HT)       |
| Precision 5510        | i7-6820HQ   | Windows 10 Enterprise 1903  | 5.2.3 on Cygwin            | 696   | 128 (8 threads HT)       |
| Precision Tower 3620  | E3-1270 v6  | Windows 10 Pro 1903         | 5.2.4 native from tukaani  | 477   |                          |
| Precision Tower 3620  | E3-1270 v6  | Ubuntu 19.10 LiveUSB        | 5.2.4                      | 431   | 97 (8 threads HT)        |
| HP Z640               | E5-1650 v3  |                             |                            |       |                          |
| HP Proliant DL380 G9  | E5-2620 v3  | Arch LiveISO 2020.02        | 5.2.4                      |       | (24 threads)             |
| Dell Optiplex 5050    | i7-7700     | Ubuntu 19.10 LiveUSB        | 5.2.4                      | 429   | 118 (8 threads HT)       |