Ubuntu
linux package

  1. Hirsute (21.04)
  2. Bug #1919154
  3. Comment #21

Comment 21 for bug 1919154

Revision history for this message
Jay Vosburgh (jvosburgh) wrote :

Gerald,

Using gettimeofday for testing the effects of NO_HZ_FULL on context switch duration may not be measuring anything that changes with regards to NO_HZ_FULL. gettimeofday is implemented via VDSO, and is not an actual system call that requires a context switch.