powerpc/pseries: Account for SPURR ticks on idle CPUs
On Pseries LPARs, to calculate utilization, we need to know the [S]PURR ticks when the CPUs were busy or idle. Via pseries_idle_prolog(), pseries_idle_epilog(), we track the idle PURR ticks in the VPA variable "wait_state_cycles". This patch extends the support to account for the idle SPURR ticks. Signed-off-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/1586249263-14048-4-git-send-email-ego@linux.vnet.ibm.com
Showing
Please register or sign in to comment