Hi, both are answered in the article: First: > What’s going on here is that the first call to localtime in glibc opens and reads the contents of /etc/localtim

Hi, both are answered in the article: First: > What’s going on here is that the first call to localtime in glibc opens and reads the contents of /etc/localtime. All subsequent calls to localtime internally call stat, but they do this to ensure that the timezone file has not changed. and second: read the section titled "Preventing extraneous system calls" for the answer to your second question.