Demo: Ten Processes, Four Ways

Run

./generate.sh && ./build.sh
./instantiate-one-static-multiple-times.sh
smem -P '^\./work/hel' -c "pid command uss pss rss"
./kill.sh
./instantiate-multiple-static.sh
smem -P '^\./work/hel' -c "pid command uss pss rss"
./kill.sh

Then the two dynamic scenarios the same way, and ./clean.sh at the end.

Ask

• Ten copies of one static executable: 708 KB of RSS each, 115 KB of PSS. What is the 650 KB in between?
• Ten different static executables: USS, PSS and RSS agree. What is left to share?
• The dynamic ones have the largest RSS and the smallest PSS. With whom is libc shared?