New speedtest.sh enhancements

[pete4abw]

Synopsis: speedtest.sh file to compress [method(s)] [level(s)]

The program test/speedtest.sh will now permit user to execute select methods and select compression levels. In addition, the results of any speedtest run will be output to a CSV file suitable for input to a spreadsheet. The output fields will stored in a file named testfile.csv and contain the following fields with a header line::

• Compression Method
• Compression Level
• Test File Name
• Test File Size
• Compression Time
• Compressed File Name (Test file name, Level, Method.lrz)
• Compressed File Size
• Decompression Time
• Compression Ratio (Test File Size / Compressed File Size)
• Bits Per Byte (BPB) (8 * Compressed File Size / Test File Size )
• Compression Speed (Megabytes per Second) (Test File Size / (1MB * Compression Time))

From here, additional metrics, graphs, comparisons can be computed as desired.

[pete4abw]

Enhancements include use of getopt() and new options. See below:

LRZIP-NEXT Speed Test
usage: test/speedtest.sh -f filename [ -m MEHOD(S) ] [ -l LEVELS ] [ -o TESTFILE ] [ -x EXTRA OPTIONS ] [ -h | -? ]

METHODS may be one or more of [no-compress, bzip2, bzip3, gzip, lzo, lzma, zpaq, zstd]

• for multiple METHODS, be sure to quote. i.e. "bzip2 lzo gzip" etc...
• if no METHODS are selected, all compression methods will be used.

LEVELS may be one or more of [1, 2, 3, 4, 5, 6, 7, 8, 9] in any order.

• for multiple LEVELS, be sure to quote, i,e, "1 2 3"
• if no LEVELS are selected, then all compression levels will be used.

if TESTFILE is not speciied, default is testfile.csv

• Output file will be a comma-delimited (CSV) file.

Extra Options will be passed to lrzip-next, e.g. "--x86" or "-p1", etc. Be sure to quote.

• Extra options will only be applied to Compression, not Decompression test.