commit 23cff7159e87c73d4b46b6db1f5fc81d67f41eba
author David Dai <davidai@google.com> Thu Jun 13 19:23:45 2024 +0000
committer David Dai <davidai@google.com> Thu Jun 13 23:21:01 2024 +0000
tree 86f2b07a47c1b104e6e0407b6338d16c8bda46d7
parent 4ec136b3f76fa8dc5ca7e2ad948c6826c1651eef

virtmgr: Add boost_uclamp

To ensure consistent results during testing, passes the boost_uclamp
as a hint to the host scheduler to reduce variance and set
a mininum floor for performance.

Also enable boost_uclamp for Microdroid Boot tests,
partially authored by ioffe.

Bug: 342349882
Test: Booted a VM and checked uClamp
Change-Id: I0d40163515d1a4e41bde6cc81916de51f798813c
Signed-off-by: David Dai <davidai@google.com>

vm/src/run.rs

diff --git a/vm/src/run.rs b/vm/src/run.rs
index 0c9fbb6..cb15802 100644
--- a/vm/src/run.rs
+++ b/vm/src/run.rs
@@ -179,6 +179,7 @@
         customConfig: Some(custom_config),
         osName: os_name,
         hugePages: config.common.hugepages,
+        boostUclamp: config.common.boost_uclamp,
     });
     run(
         service.as_ref(),
@@ -260,6 +261,7 @@
     }
     vm_config.cpuTopology = config.common.cpu_topology;
     vm_config.hugePages = config.common.hugepages;
+    vm_config.boostUclamp = config.common.boost_uclamp;
     run(
         get_service()?.as_ref(),
         &VirtualMachineConfig::RawConfig(vm_config),