Chapter 5 edits

[dankamongmen]

A lot of numbers here were using apostrophes as their grouping element. I changed those to commas, or removed them entirely when they were literals.

Made perf be perf everywhere.

"Pseudo names" -> "pseudonyms".

"libfm4" -> "libpfm4"

Usual en dashes, comma splices, etc. This chapter was pretty clean.

Notes:

• Listing 5.2: i would make those autos const
• 5-3: "don't have root in a virtualized environment" in a virtualized environment, one typically does have root (though the PMCs might not be exported to the VM). in operating system level virtualization (i.e. a container) one commonly lacks root, sure. I guess you explain this later.