perf - Perf is a simple app monitoring solution paired with meaningful alerts.
Qualys - Qualys helps your business automate the full spectrum of auditing, compliance and protection of your IT systems and web applications.
ftrace - A function tracer for the Linux kernel.
Burp Suite - Burp Suite is an integrated platform for performing security testing of web applications.
strace - Trace system calls and signals. A diagnostic, debugging and instructional userspace utility.
OpenVAS - The Open Vulnerability Assessment System (OpenVAS) is a framework of several services and tools...