http://defect.opensolaris.org/bz/show_bug.cgi?id=3100
Summary: Reprogram I/O APIC to target HPET lAPIC proxy interrupt
to target CPU
Classification: Development
Product: power-mgmt
Version: unspecified
Platform: Other
OS/Version: Solaris
Status: NEW
Severity: minor
Priority: P4
Component: c-state
AssignedTo: bill.holler at sun.com
ReportedBy: bill.holler at sun.com
CC: tesla-dev at opensolaris.org
Estimated Hours: 0.0
Currently the HPET generates I/O APIC interrupts which are bound
to CPU 0. It would be nice if the interrupt can be targeted
at the next expiring CPU.
A test should be run to measure how expensive re-programming the
I/O APIC is. The HPET is reprogrammed 1) when the ISR is run and
there are more CPU waiting to expire, or 2) when a new CPU
schedules its cbe interrupt on the HPET at a sooner time than
all other CPUs scheduled on the HPET.
--
Configure bugmail: http://defect.opensolaris.org/bz/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.
