Package perf-tools

• bitesize(8) — show disk I/O size as a histogram. Uses Linux perf_events.
• cachestat(8) — Measure page cache hits/misses. Uses Linux ftrace.
• execsnoop(8) — trace process exec() with arguments. Uses Linux ftrace.
• funccount(8) — count kernel function calls matching specified wildcards. Uses Linux ftrace.
• funcgraph(8) — trace kernel function graph, showing child function calls and times. Uses Linux ftrace.
• funcslower(8) — trace kernel functions slower than a threshold (microseconds). Uses Linux ftrace.
• functrace(8) — trace kernel function calls matching specified wildcards. Uses Linux ftrace.
• iolatency(8) — summarize block device I/O latency as a histogram. Uses Linux ftrace.
• iosnoop(8) — trace block I/O events as they occur. Uses Linux ftrace.
• killsnoop(8) — trace kill() syscalls with process and signal details. Uses Linux ftrace.
• kprobe(8) — trace a given kprobe definition. Kernel dynamic tracing. Uses Linux ftrace.
• opensnoop(8) — trace open() syscalls with file details. Uses Linux ftrace.
• perf-stat-hist(8) — histogram summary of tracepoint values. Uses Linux perf_events.
• reset-ftrace(8) — reset state of ftrace, disabling all tracing. Written for Linux ftrace.
• syscount(8) — count system calls. Uses Linux perf_events.
• tcpretrans(8) — show TCP retransmits, with address and other details. Uses Linux ftrace.
• tpoint(8) — trace a given tracepoint. Static tracing. Uses Linux ftrace.
• uprobe(8) — trace a given uprobe definition. User-level dynamic tracing. Uses Linux ftrace. EXPERIMENTAL.