April 2011
Intermediate to advanced
1152 pages
24h 5m
English
Content preview from DTrace: Dynamic Tracing in OracleBecome 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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1. Introduction to DTrace
This chapter introduces you to DTrace.
What Is DTrace?
DTrace1 is an observability technology that allows you to answer countless questions about how systems and applications are behaving in development and in production. DTrace empowers users in ways not previously possible by enabling the dynamic instrumentation of unmodified kernel and user software.
Created by Bryan Cantrill, Mike Shapiro, and Adam Leventhal, DTrace was first introduced in Solaris 10 3/05 (the first release of Solaris 10) in March 2005. It is now available in all Solaris 10 releases, as well as OpenSolaris, Mac OS X beginning with release 10.5 (Leopard), and FreeBSD beginning with release 7.1.
Why Do You Need It?
Understanding what is going on in ...
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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.