perfmon.exe itself taking 52.71% of CPU on Windows 7 after chrome dies?

perfmon.exe itself taking 52.71% of CPU on Windows 7 after chrome dies?

On my Windows 7 machine (build 7100, x64, Dell XPS M1710 laptop), I'm getting horrible performance after chrome crashes. I kill the chrome process from the Resource Monitor, but after that perfmon.exe itself is shown as taking about 50% of the CPU (52.31% right now).