How does top calculate the memory figures on Linux?
Fresh3 days ago
Mar 15, 20263800 viewsConfidence Score0%
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Problem
I'm a bit confused on how the memory figures add up in top. If I've understood correctly, the amount of "really" used memory is total - free - buffers - cached. In the example below that would be 14370248k - 75736k - 178892k - 10459552k = 3656068k, which is 25% of the total memory (3656068/14370248…
Error Output
top - 15:37:00 up 117 days, 18:27, 6 users, load average: 4.82, 4.44, 3.60 Tasks: 433 total, 4 running, 429 sleeping, 0 stopped, 0 zombie Cpu…
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Fix for: How does top calculate the memory figures on Linux?
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The httpd processes probably share some memory, because they are forked from each other. Because of the copy-on-write mechanism, they all claim that memory as their own virtual memory even though it only exists once in physical memory. In general, t…
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