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--- glossary [2021/01/06 16:46] – [USS] senioradmin
+++ glossary [2021/01/16 22:24] (current) – senioradmin
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 ===== PSS =====
-The “proportional set size” (PSS) the tool smem reports is the memory the program plus the "fair share" of each shared area to give a realistic measure. At simpletools.info the PSS is the crucial criterion to determine the memory footprint of a program
+The “proportional set size” (PSS) the tool smem reports is the memory the program plus the "fair share" of each shared area to give a realistic measure. At simpletools.info the PSS is the crucial criterion to determine the memory footprint of a program. The unit is **kilobyte (kB)**.
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 ===== USS =====
 The "unique set size" (USS) reports the memory needed by the program binary only, without any shared library it might need. This underestimates the programs memory footprint,unless it is a static linked binary.