perf:tldr:755f7

perf: Display basic performance counter stats for a command.

perf

$ perf stat ${gcc hello-c}

try on your machine

The command "perf stat ${gcc hello-c}" involves the following components:

"perf stat": This is a command that is used to monitor and collect performance counter statistics of a program or command. It allows you to measure various hardware events, such as CPU cycles, cache misses, and branch instructions. It provides detailed information about the performance characteristics of a program.
"${gcc hello-c}": This is a placeholder that represents a specific command that needs to be executed. In this case, it is using the GNU Compiler Collection (gcc) to compile a C program called "hello.c". The resulting executable is then executed and its performance is measured using "perf stat".

Overall, the command is compiling and executing the "hello.c" program using gcc and simultaneously collecting performance statistics using perf stat.

This explanation was created by an AI. In most cases those are correct. But please always be careful and never run a command you are not sure if it is safe.

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