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Add a benchmark test for Resources.getIdentifier

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In order to prevent unstable benchmark results because of cache,
a random resource name with an expected value comes from
Random.nextInt(10001).The range is from 0 to 10000.

This patch creates 10001 color resources with the prefix
"i_am_color_%x".  The range is from "i_am_color_0" to
"i_am_color_2710". The benchmark measures randomly accessing any
of those resources.

Test: atest --request-upload-result \
    CorePerfTests:android.app.ResourcesPerfTest#getIdentifier

Bug: 191487225
Change-Id: I357b43fda77e31b6d234233fd902eb8e4696301e
This commit is contained in:
Felka Chang 2021-12-28 23:34:07 +08:00
parent a83857b9e2
commit ccb8c015b7
3 changed files with 10048 additions and 1 deletions
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4
apct-tests/perftests/core/OWNERS
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@ -1 +1,5 @@
include /graphics/java/android/graphics/fonts/OWNERS
# Bug component: 568761
per-file /apct-tests/perftests/core/res/* = felkachang@google.com,zyy@google.com

10022
apct-tests/perftests/core/res/values/colors.xml Normal file
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File diff suppressed because it is too large Load Diff

21
apct-tests/perftests/core/src/android/app/ResourcesPerfTest.java
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@ -37,6 +37,7 @@ import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import java.io.IOException;
import java.util.Random;
/**
* Benchmarks for {@link android.content.res.Resources}.
@ -222,4 +223,24 @@ public class ResourcesPerfTest {
state.resumeTiming();
}
}
@Test
public void getIdentifier() {
final BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
final Random random = new Random(System.currentTimeMillis());
final Context context = InstrumentationRegistry.getTargetContext();
final String packageName = context.getPackageName();
while (state.keepRunning()) {
state.pauseTiming();
final int expectedInteger = random.nextInt(10001);
final String expectedString = Integer.toHexString(expectedInteger);
final String entryName = "i_am_color_" + expectedString;
state.resumeTiming();
final int resIdentifier = mRes.getIdentifier(entryName, "color", packageName);
if (resIdentifier == 0) {
fail("Color \"" + entryName + "\" is not found");
}
}
}
}