More DTrace envy

Nearly a year ago, we looked at the status of SystemTap in the context of Sun's much-hyped DTrace tool. Since that time there has been progress, but the basic problem still remains: Linux does not have a good, ready-to-run answer to those wanting the equivalent functionality of DTrace. Due to an apparent disconnect between the developers of SystemTap and the kernel hackers, tracing for the Linux kernel—never mind user space programs—is not up to the competition. This article (subscribers only) looks at recent discussions on the issue and possible paths toward a solution to this problem.

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