Add batched createAppData API to installd.
Benchmarking creation of new users shows on a freshly setup device
sees many individual binder calls from system server into installd to
create app data directories. Batching these calls shows a significant
performance improvement.
Bug: 153171028
Test: Manually create guest user, trace performance with Perfetto.
Change-Id: Iea43c058d465be44c0937bf6c353555869fc9fd2
diff --git a/cmds/installd/InstalldNativeService.cpp b/cmds/installd/InstalldNativeService.cpp
index 6fee11b..c0fb0f8 100644
--- a/cmds/installd/InstalldNativeService.cpp
+++ b/cmds/installd/InstalldNativeService.cpp
@@ -412,6 +412,33 @@
return true;
}
+binder::Status InstalldNativeService::createAppDataBatched(
+ const std::optional<std::vector<std::optional<std::string>>>& uuids,
+ const std::optional<std::vector<std::optional<std::string>>>& packageNames,
+ int32_t userId, int32_t flags, const std::vector<int32_t>& appIds,
+ const std::vector<std::string>& seInfos, const std::vector<int32_t>& targetSdkVersions,
+ int64_t* _aidl_return) {
+ ENFORCE_UID(AID_SYSTEM);
+ std::lock_guard<std::recursive_mutex> lock(mLock);
+
+ ATRACE_BEGIN("createAppDataBatched");
+ binder::Status ret;
+ for (size_t i = 0; i < uuids->size(); i++) {
+ std::optional<std::string> packageName = packageNames->at(i);
+ if (!packageName) {
+ continue;
+ }
+ ret = createAppData(uuids->at(i), *packageName, userId, flags, appIds[i],
+ seInfos[i], targetSdkVersions[i], _aidl_return);
+ if (!ret.isOk()) {
+ ATRACE_END();
+ return ret;
+ }
+ }
+ ATRACE_END();
+ return ok();
+}
+
binder::Status InstalldNativeService::createAppData(const std::optional<std::string>& uuid,
const std::string& packageName, int32_t userId, int32_t flags, int32_t appId,
const std::string& seInfo, int32_t targetSdkVersion, int64_t* _aidl_return) {
diff --git a/cmds/installd/InstalldNativeService.h b/cmds/installd/InstalldNativeService.h
index 1a8da5f..3f44021 100644
--- a/cmds/installd/InstalldNativeService.h
+++ b/cmds/installd/InstalldNativeService.h
@@ -44,7 +44,12 @@
int32_t userSerial, int32_t flags);
binder::Status destroyUserData(const std::optional<std::string>& uuid, int32_t userId,
int32_t flags);
-
+ binder::Status createAppDataBatched(
+ const std::optional<std::vector<std::optional<std::string>>>& uuids,
+ const std::optional<std::vector<std::optional<std::string>>>& packageNames,
+ int32_t userId, int32_t flags, const std::vector<int32_t>& appIds,
+ const std::vector<std::string>& seInfos, const std::vector<int32_t>& targetSdkVersions,
+ int64_t* _aidl_return);
binder::Status createAppData(const std::optional<std::string>& uuid,
const std::string& packageName, int32_t userId, int32_t flags, int32_t appId,
const std::string& seInfo, int32_t targetSdkVersion, int64_t* _aidl_return);
diff --git a/cmds/installd/binder/android/os/IInstalld.aidl b/cmds/installd/binder/android/os/IInstalld.aidl
index 0b9a444..1e18a6b 100644
--- a/cmds/installd/binder/android/os/IInstalld.aidl
+++ b/cmds/installd/binder/android/os/IInstalld.aidl
@@ -23,6 +23,9 @@
long createAppData(@nullable @utf8InCpp String uuid, in @utf8InCpp String packageName,
int userId, int flags, int appId, in @utf8InCpp String seInfo, int targetSdkVersion);
+ long createAppDataBatched(in @nullable @utf8InCpp String[] uuids,
+ in @nullable @utf8InCpp String[] packageNames, in int userId, int flags, in int[] appIds,
+ in @utf8InCpp String[] seInfos, in int[] targetSdkVersions);
void restoreconAppData(@nullable @utf8InCpp String uuid, @utf8InCpp String packageName,
int userId, int flags, int appId, @utf8InCpp String seInfo);
void migrateAppData(@nullable @utf8InCpp String uuid, @utf8InCpp String packageName,