Ubuntu
linux package

  1. Bug #1919154
  2. Comment #11

Comment 11 for bug 1919154

Revision history for this message
gerald.yang (gerald-yang-tw) wrote :

Spend some time to get access to AMD EPYC machine

For 5.15 kernel

If we build NO_HZ_FULL into kernel and compare with default kernel (NO_HZ_IDLE)
- on Intel machine, there is no much different
- on Arm64 machine, interestingly, the context switch is a bit faster with NO_HZ_FULL built-in
- on AMD EPYC machine, with NO_HZ_FUL built-in, the context switch is 3.3% worse