procinfo.h under AIX
The structs procinfo{} and userinfo{} in /usr/include/procinfo.h are containers for quite a bit of information about the processes running on your system. One of my favourite apps, 'monitor' uses them, but I still have problems interpreting all of the elements:
struct userinfo
{
.
.
.
unsigned long ui_tsize; /* size of text */
.
.
.
/* memory usage info */
unsigned long ui_drss; /* data resident set size */
unsigned long ui_trss; /* text resident set size */
unsigned long ui_dvm; /* data virtual memory size */
};
are dealing with memory sizes, but what sizes are these exactly? What is considered to be 'text', 'data'? Please no guesses, please no easy explanations for beginners, what I need is a good definition of these terms.
Thanks for your input
Werner
struct userinfo
{
.
.
.
unsigned long ui_tsize; /* size of text */
.
.
.
/* memory usage info */
unsigned long ui_drss; /* data resident set size */
unsigned long ui_trss; /* text resident set size */
unsigned long ui_dvm; /* data virtual memory size */
};
are dealing with memory sizes, but what sizes are these exactly? What is considered to be 'text', 'data'? Please no guesses, please no easy explanations for beginners, what I need is a good definition of these terms.
Thanks for your input
Werner
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Thanks for the VERY FAST reply!
1) ui_tsize is in byte, everything else in 4K pages!
2) Your explanation makes sense, even if the numbers don't add up
exactly (I guess there is some process header stuff included).
3) Do you know a good (technical) source for that stuff (There
are so many other open questions)? IBM's Technical Library
isn't that much helpful.