Hi,
OP-TEE Contributions (LOC) monthly meeting is planned for Thursday Nov 25
@17.00 (UTC+2).
Following topic is on the agenda:
- Walkthrough of proposal on sharing of hardware resources between multiple
secure entities - Jens Wiklander.
If you have any other topics you'd like to discuss, please let us know and
we can schedule them.
Meeting details:
---------------
Date/time: Nov 25(a)16.00 (UTC)
https://everytimezone.com/s/a43c71b2
Connection details: https://www.trustedfirmware.org/meetings/
Meeting notes: http://bit.ly/loc-notes
Regards,
Ruchika on behalf of the Linaro OP-TEE team
Hi Jonathan,
I was about to test your doe-spdm-v1 branch but it does not compile,
I was wondering if you forgot to push some files.
Have you managed to rebase it on top of the latest DOE patches ?
Please let me know, thank you very much.
Lorenzo
This is the follow-up work to support cluster scheduler. Previously
we have added cluster level in the scheduler[1] to make tasks spread
between clusters to bring more memory bandwidth and decrease
cache contention. But it may hurt some workloads which are sensitive
to the communication latency as they will be placed across clusters.
We modified the select_idle_cpu() on the wake affine path in this
series, expecting the wake affined task to be woken more likely on
the same cluster with the waker. The latency will be decreased as
the waker and wakee in the same cluster may benefit from the hot
L3 cache tag.
[1] https://lore.kernel.org/lkml/20210924085104.44806-1-21cnbao@gmail.com/
Hi Tim and Barry,
This the modified patch of packing path of cluster scheduler and tests
have been done on Kunpeng 920 2-socket 4-NUMA 128core platform, with
8 clusters on each NUMA. Patches based on 5.15-rc1.
Barry Song (2):
sched: Add per_cpu cluster domain info
sched/fair: Scan from the first cpu of cluster if presents in
select_idle_cpu
include/linux/sched/sd_flags.h | 9 +++++++++
include/linux/sched/topology.h | 2 +-
kernel/sched/fair.c | 10 +++++++---
kernel/sched/sched.h | 1 +
kernel/sched/topology.c | 5 +++++
5 files changed, 23 insertions(+), 4 deletions(-)
--
2.33.0