Hi everyone recently, I take a closer look on Documentation/filesystems/proc.txt especially the section which explains about statm. I have several questions: 1. the description for trs field (field #4 from left) is "number of pages that are 'code' (not including libs; broken, includes data segment)". What I don't understand is, why it is said also includes data segment? I check the related code on elf loader, probably because on code segment, not only .text section is mapped there, but also .rodata? or is there better explanation about it? 2. Similar with (1), drs field (field #6 from left) also said as broken and includes library text. I check task_statm() in fs/proc/task_mmu.c, this field is calculated like below: *data = mm->total_vm - mm->shared_vm My understanding is, total_vm is total virtual size of the process and shared_vm is pages backed by file. Thus, logically, the above formula is correctly showing the size of data segment (bss?). Any correction for my conclusion? 3. Why dirty pages field (field #7 from left) is always shown in 2.6.x, while it shows number greater than 0 on 2.4.x. Dirty pages are not accounted in 2.6.x? Or is it expensive to track per process dirty pages on 2.6.x so it is dropped? Thank you in advance for your help regards Mulyadi -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
