On Mon, Mar 14, 2022 at 10:37:21AM +0100, Dietmar Eggemann wrote:
On 09/03/2022 19:26, Darren Hart wrote:
On Wed, Mar 09, 2022 at 01:50:07PM +0100, Dietmar Eggemann wrote:
On 08/03/2022 18:49, Darren Hart wrote:
On Tue, Mar 08, 2022 at 05:03:07PM +0100, Dietmar Eggemann wrote:
On 08/03/2022 12:04, Vincent Guittot wrote:
On Tue, 8 Mar 2022 at 11:30, Will Deacon will@kernel.org wrote:
[...]
IMHO, if core_mask weight is 1, MC will be removed/degenerated anyway.
This is what I get on my Ampere Altra (I guess I don't have the ACPI changes which would let to a CLS sched domain):
# cat /sys/kernel/debug/sched/domains/cpu0/domain*/name DIE NUMA root@oss-altra01:~# zcat /proc/config.gz | grep SCHED_CLUSTER CONFIG_SCHED_CLUSTER=y
I'd like to follow up on this. Would you share your dmidecode BIOS Information section?
# dmidecode -t 0 # dmidecode 3.2 Getting SMBIOS data from sysfs. SMBIOS 3.2.0 present.
Handle 0x0000, DMI type 0, 26 bytes BIOS Information Vendor: Ampere(TM) Version: 0.9.20200724 Release Date: 2020/07/24 ROM Size: 7680 kB Characteristics: PCI is supported BIOS is upgradeable Boot from CD is supported Selectable boot is supported ACPI is supported UEFI is supported BIOS Revision: 5.15 Firmware Revision: 0.6
Thank you, I'm following internally and will get with you.
Looks like in my PPTT, the `Processor Hierarchy Nodes` which represents cluster nodes have no valid `ACPI Processor ID`.
Thanks, I'm looking for the right person to get us the latest information available this. Will follow up once I have.