`strace` is the first tool SRE teams reach for when a production service mysteriously hangs on a file or socket operation, since it can reveal a blocked `read()` or a repeated `ENOENT` on a missing config file without recompiling anything. The `-c` summary mode you practice here is exactly what engineers use to spot syscall-count regressions, like a library that unexpectedly started calling `stat()` in a hot loop.