Questions about cachetop.py tool #bcc


thesummernightcat@...
 

I have some questions about cachetop.py tool.
Why the total accesses is defined as the times of entering mark_page_accessed plus mark_buffer_dirty functions?
Doesn't enter mark_buffer_dirty must also enter mark_page_accessed, that is, doesn't they overlap?
I don't really get it...... If someone can tell me why, I will be grateful!                                                                

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