Go Systems Programming

Comparing the performance of wc.go and wc(1)

In this subsection, we will compare the performance of our version of wc(1) with the wc(1) version that comes with macOS Sierra 10.12.6. First, we will execute wc.go:

$ file wc
wc: Mach-O 64-bit executable x86_64
$ time ./wc *.data
672320      3361604     9413057     connections.data
269123      807369      4157790     diskSpace.data
672040      1344080     8376070     memory.data
1344533     2689066     5378132     pageFaults.data
269465      792715      4068250     uptime.data
3227481     8994834     31393299    total
    
real  0m17.467s
user  0m22.164s
sys   0m3.885s

Then, we will execute the macOS version of wc(1) to process the same files:

$ file `which wc`
/usr/bin/wc: Mach-O 64-bit executable x86_64
$ time wc *.data
672320 3361604 9413057 connections.data
269123 807369 4157790 ...