Hi, I need help in roughly calculating the total memory consumption in an embedded Linux system just after booting is finished. I know, I can see the memory stats using "free" and "/proc/meminfo"
But, I need the breakup of "Used" memory during bootup, for both kernel space and user application. Example, on my ARM machine with 128MB RAM, the free memory reported is roughly: Total: 90MB Used: 88MB Free: 2MB Buffer+Cached: (5+19)MB Now, my question is, how to find the breakup of this "Used" memory of "88MB". This should include both kernel space allocation and user application allocation(including daemons). If anybody knows about any tools(or techniques) please help. Few doubts: 1) If I add up all "Pss" field in "proc/<PID>/smaps, do I get the total Used memory? 2) Is the Pss value includes the kernel side allocation as well? 3) What fields I should choose from ?proc/meminfo" to correctly arrive at the "Used" memory in the system? 4) What about the memory allocation for kernel threads during booting? Why does its Pss/Rss value shows 0 always? Please help. Thank You! Regards, Pintu -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
