BARD vs CHATGPT - what is rhel equivalent of dtrace?

Verdict: BARD Wins :)

Reason: BARD provided more info and the other tools which are really known to be useful as per my search.

BARD's response:

The RHEL equivalent of dtrace is SystemTap. SystemTap is a dynamic tracing framework for Linux that allows you to monitor and debug your system in real time. It is similar to dtrace in that it allows you to write scripts that trace events in the kernel and userspace, but it is not as widely available. SystemTap is available on RHEL 6 and later, but it is not enabled by default. To enable SystemTap, you need to install the systemtap-tools package. Once you have installed the systemtap-tools package, you can use the systemtap command to create and run SystemTap scripts.

Here is an example of a SystemTap script that traces all calls to the open() system call:

probe kernel.function("open") {
  printf("%s\n", execname);
}

This script will print the name of the process that is calling the open() system call to the console. You can use SystemTap to trace a wide variety of events in the kernel and userspace. For more information on SystemTap, see the SystemTap documentation.

Here are some other alternatives to dtrace for Linux:

• bpftrace: bpftrace is a high-level language for tracing Linux systems. It is similar to dtrace in that it allows you to write scripts that trace events in the kernel and userspace, but it is more powerful and flexible than SystemTap.
• perf: perf is a performance analysis tool for Linux. It can be used to trace events in the kernel and userspace, but it is not as powerful as dtrace or bpftrace.
• ftrace: ftrace is a tracing framework for the Linux kernel. It can be used to trace a wide variety of events in the kernel, but it is not as easy to use as dtrace or bpftrace.

CHATGPT response:

In Red Hat Enterprise Linux (RHEL), the equivalent of DTrace is SystemTap. SystemTap is an open-source tool that provides dynamic tracing of the Linux kernel and user-space applications, similar to DTrace on Solaris and other platforms.

SystemTap allows developers and system administrators to write scripts that can be used to monitor and debug a variety of system events, including system calls, signals, kernel functions, and more. The scripts can be written in a C-like language and can be compiled to generate custom kernel modules that can be loaded at runtime.

SystemTap provides a powerful and flexible tracing and debugging infrastructure for RHEL, and it is widely used by developers and system administrators to diagnose and solve complex system problems.