csvs is the primary frontend for CSVSee. You can run this without arguments to see what it expects. At minimum, you’ll need to provide the name of a command. Currently, two commands are implemented:

  • csvs graph: Generate graphs from .csv files
  • csvs grep: Search in text files and generate a .csv file
  • csvs grinder: Create .csv reports based on Grinder output file

csvs graph

The graph command is designed to generate graphs of comma-separated (.csv) data files. It was originally designed for graphing data from the Windows Performance Monitor tool, but it can also be used more generally to graph any CSV data that includes timestamps.

The only thing you must provide is a filename.csv containing your data. By default, the first column of data is used as the X-coordinate; if it’s a timestamp, its format will be guessed.

You can optionally specify one or more regular expressions to match the column names you want to graph. If you don’t provide these, all columns will be graphed. All data must be integer or floating-point numeric values; anything that isn’t a date or number will be plotted as a 0.

Column names can be specified as regular expressions that may match one or more column headings in the .csv file. For example, if you have a file called perfmon.csv with columns named like this:

"Eastern Time","CPU (user)","CPU (system)","CPU (idle)","Memory"

You can generate a graph of user, system, and idle CPU values over time like this:

csvs graph perfmon.csv "CPU.*"

Run csvs graph without arguments to see full usage notes.

csvs grep

The grep command generates a .csv file by matching strings in one or more timestamped log files. It would typically be used to generate a report of how frequently certain messages or errors appear through time.

For example, if you have parrot.log containing:

2010/08/30 13:57:14 Pushing up the daisies
2010/08/30 13:58:08 Stunned
2010/08/30 13:58:11 Stunned
2010/08/30 14:04:22 Pining for the fjords
2010/08/30 14:05:37 Pushing up the daisies
2010/08/30 14:09:48 Pining for the fjords

And you wanted to see how often each of these phrases occur, do:

csvs grep parrot.log \
    -match "Stunned" "Pushing up the daisies" "Pining for the fjords" \
    -out parrot.csv

By default, the grep command counts the number of occurrences each minute, so this would give you a .csv file looking something like this (whitespace added for readability):

"Timestamp",        "Stunned", "Pushing up the daisies", "Pining for the fjords"
2010/08/30 13:57,   0,         1,                        0
2010/08/30 13:58,   2,         0,                        0
2010/08/30 14:04,   0,         0,                        1
2010/08/30 14:05,   0,         1,                        0
2010/08/30 14:09,   0,         0,                        1

You can change the resolution using the -seconds option. For example, to count the occurrences each hour, use -seconds 3600.

Run csvs grep without arguments to see full usage notes.

csvs grinder

New in version 0.2.

The grinder command generates .csv files from Grinder logs. You must provide the name of a out* file, and one or more data* files generated from the same test run:

csvs grinder out-0.log data-*.log foo

This will write four .csv files in the current directory:

  • foo_Errors.csv
  • foo_HTTP_response_errors.csv
  • foo_HTTP_response_length.csv
  • foo_Test_time.csv

By default, statistics are summarized with a 60-second resolution; that is, all statistics within each 60-second interval are summed (in the case of errors) or averaged (in the case of response length and test time). To change the interval resolution, pass the -seconds option. For instance, to summarize statistics in 10-minute intervals:

csvs grinder -seconds 600 out-0.log data-*.log foo

Run csvs grinder without arguments to see full usage notes.

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