diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2025-11-07 17:01:31 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-01-11 15:25:21 +0100 |
| commit | 1b9c118fe318a43aed0b8a516b23817cd3623cf8 (patch) | |
| tree | d6bd5f88ef64e1204c77b318e1a586f8b79f1699 /include/net/aligned_data.h | |
| parent | c6ae271bc5fd44b48ebe43f63c4d2ae972d296da (diff) | |
sched/fair: Proportional newidle balance
commit 33cf66d88306663d16e4759e9d24766b0aaa2e17 upstream.
Add a randomized algorithm that runs newidle balancing proportional to
its success rate.
This improves schbench significantly:
6.18-rc4: 2.22 Mrps/s
6.18-rc4+revert: 2.04 Mrps/s
6.18-rc4+revert+random: 2.18 Mrps/S
Conversely, per Adam Li this affects SpecJBB slightly, reducing it by 1%:
6.17: -6%
6.17+revert: 0%
6.17+revert+random: -1%
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Tested-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Tested-by: Chris Mason <clm@meta.com>
Link: https://lkml.kernel.org/r/6825c50d-7fa7-45d8-9b81-c6e7e25738e2@meta.com
Link: https://patch.msgid.link/20251107161739.770122091@infradead.org
[ Ajay: Modified to apply on v6.12 ]
Signed-off-by: Ajay Kaher <ajay.kaher@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/net/aligned_data.h')
0 files changed, 0 insertions, 0 deletions