commit b9c4962d6e19263e9f2beae675be0d45a291a7e5
author Steven Moreland <smoreland@google.com> Tue Aug 10 17:39:10 2021 -0700
committer Steven Moreland <smoreland@google.com> Tue Aug 10 18:18:40 2021 -0700
tree ca8d72f7627001198318b182cd2163eeb94c2621
parent f1aa6cddcebc60d0ca8c4df1849b3b530d046bff

binderRpcBenchmark: repeatBinder kernel binder

Before, this was only running rpc binder for the repeateBinder test
case.

BM_repeatBinder/0                              61680 ns        33016 ns
17730
BM_repeatBinder/1                             162368 ns        87825 ns
9997

So, RPC is much slower. Investigation to come. May be related to
b/182939933 (reading /dev/urandom to come up with addresses for new RPC
binder objects).

Bug: 182940634
Test: binderRpcBenchmark
Change-Id: I02c147bb011994ab9acb9f30de00538f04cfb0d9

libs/binder/tests/binderRpcBenchmark.cpp

diff --git a/libs/binder/tests/binderRpcBenchmark.cpp b/libs/binder/tests/binderRpcBenchmark.cpp
index 0c452ff..e430c28 100644
--- a/libs/binder/tests/binderRpcBenchmark.cpp
+++ b/libs/binder/tests/binderRpcBenchmark.cpp
@@ -153,7 +153,7 @@
                        {64, 1024, 2048, 4096, 8182, 16364, 32728, 65535, 65536, 65537}});
 
 void BM_repeatBinder(benchmark::State& state) {
-    sp<IBinder> binder = gSession->getRootObject();
+    sp<IBinder> binder = getBinderForOptions(state);
     CHECK(binder != nullptr);
     sp<IBinderRpcBenchmark> iface = interface_cast<IBinderRpcBenchmark>(binder);
     CHECK(iface != nullptr);