KnowledgeBase/CII.md

@@ -1279,7 +1279,7 @@ By default the build system uses all cores on the host. Less parallelism means l
 To build with only 4 cores:
 ` $ time waf -j4 build `
 
-On a 12 core host with 16 GB RAM, a parallelism of 8 may be a good choice. Try different numbers of cores and use the output from the time-command (see above) to find an optimum between real, page faults, and cpu.
+As a rough estimate, each waf build task will consume around 2 GB RAM, so on a 12 core host with 16 GB RAM, a parallelism of 8 may be a good choice. Try different numbers of cores and use the output from the time-command (see above) to find an optimum between real, page faults, and cpu.
 
 
 3. Adjust the compiler flags