December 2021
Intermediate to advanced
510 pages
11h 20m
English
Content preview from Powerful Command-Line Applications in GoBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Benchmarking Your Tool
Before you start thinking about improving the performance of your tools or programs, you first need to determine what the current status is and define a baseline for comparison. For this exercise, we’ll state that performance means how fast the tool takes to process its workload. Perhaps it’s currently good enough, but we may not know. To determine the current state, we need to measure it.
In the Linux/Unix world the quickest way to determine how fast your applications works is by using the time command. The time command executes the application and prints out how long it took to run. For example, to measure how long your tool takes to process data from the two test files in the testdata directory, run this command:
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.