Go Systems Programming

Doing some benchmarking

In this section, we will compare the performance of wc.go from Chapter 6, File Input and Output, with the performance of wc(1), dWC.go and dWCtotal.go. In order for the results to be more accurate, all three utilities will process relatively big files:

$ wc /tmp/*.data
  712804 3564024 9979897 /tmp/connections.data
  285316  855948 4400685 /tmp/diskSpace.data
  712523 1425046 8916670 /tmp/memory.data
 1425500 2851000 5702000 /tmp/pageFaults.data
  285658  840622 4313833 /tmp/uptime.data
 3421801 9536640 33313085 total
  

So, the time(1) utility will measure the following commands:

$ time wc /tmp/*.data /tmp/*.data
$ time wc /tmp/uptime.data /tmp/pageFaults.data
$ time ./dWC /tmp/*.data /tmp/*.data
$ time ./dWC /tmp/uptime.data /tmp/pageFaults.data ...