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Add config_customizedMaxCachedProcesses to symbols.xml

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Add a new config to customize the number of max cached processes
by projects.

Bug: 190531672
Test: make
Test: dumpsys activity | grep CUR_MAX_CACHED_PROCESSES
Change-Id: I0455d03d8d35ad39259aea580554134e1be01b45
This commit is contained in:
Chiawei Wang
2021-06-15 23:04:22 +08:00
parent 227a964660
commit 9164c79377
3 changed files with 18 additions and 6 deletions
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3
core/res/res/values/config.xml
View File

@@ -5042,4 +5042,7 @@
<!-- The default number of times per second that the seconds hand on AnalogClock ticks. If set
to 0, the seconds hand will be disabled. -->
<integer name="config_defaultAnalogClockSecondsHandFps">1</integer>
<!-- the number of the max cached processes in the system. -->
<integer name="config_customizedMaxCachedProcesses">32</integer>
</resources>

2
core/res/res/values/symbols.xml
View File

@@ -4420,4 +4420,6 @@
<java-symbol type="dimen" name="config_wallpaperDimAmount" />
<java-symbol type="bool" name="config_volumeShowRemoteSessions" />
<java-symbol type="integer" name="config_customizedMaxCachedProcesses" />
</resources>

19
services/core/java/com/android/server/am/ActivityManagerConstants.java
View File

@@ -506,6 +506,7 @@ final class ActivityManagerConstants extends ContentObserver {
private final KeyValueListParser mParser = new KeyValueListParser(',');
private int mOverrideMaxCachedProcesses = -1;
private final int mCustomizedMaxCachedProcesses;
// The maximum number of cached processes we will keep around before killing them.
// NOTE: this constant is *only* a control to not let us go too crazy with
@@ -515,11 +516,12 @@ final class ActivityManagerConstants extends ContentObserver {
// kill them. Also note that this limit only applies to cached background processes;
// we have no limit on the number of service, visible, foreground, or other such
// processes and the number of those processes does not count against the cached
// process limit.
public int CUR_MAX_CACHED_PROCESSES = DEFAULT_MAX_CACHED_PROCESSES;
// process limit. This will be initialized in the constructor.
public int CUR_MAX_CACHED_PROCESSES;
// The maximum number of empty app processes we will let sit around.
public int CUR_MAX_EMPTY_PROCESSES = computeEmptyProcessLimit(CUR_MAX_CACHED_PROCESSES);
// The maximum number of empty app processes we will let sit around. This will be
// initialized in the constructor.
public int CUR_MAX_EMPTY_PROCESSES;
// The number of empty apps at which we don't consider it necessary to do
// memory trimming.
@@ -762,6 +764,10 @@ final class ActivityManagerConstants extends ContentObserver {
context.getResources().getStringArray(
com.android.internal.R.array.config_keep_warming_services))
.map(ComponentName::unflattenFromString).collect(Collectors.toSet()));
mCustomizedMaxCachedProcesses = context.getResources().getInteger(
com.android.internal.R.integer.config_customizedMaxCachedProcesses);
CUR_MAX_CACHED_PROCESSES = mCustomizedMaxCachedProcesses;
CUR_MAX_EMPTY_PROCESSES = computeEmptyProcessLimit(CUR_MAX_CACHED_PROCESSES);
}
public void start(ContentResolver resolver) {
@@ -1105,13 +1111,13 @@ final class ActivityManagerConstants extends ContentObserver {
try {
CUR_MAX_CACHED_PROCESSES = mOverrideMaxCachedProcesses < 0
? (TextUtils.isEmpty(maxCachedProcessesFlag)
? DEFAULT_MAX_CACHED_PROCESSES : Integer.parseInt(maxCachedProcessesFlag))
? mCustomizedMaxCachedProcesses : Integer.parseInt(maxCachedProcessesFlag))
: mOverrideMaxCachedProcesses;
} catch (NumberFormatException e) {
// Bad flag value from Phenotype, revert to default.
Slog.e(TAG,
"Unable to parse flag for max_cached_processes: " + maxCachedProcessesFlag, e);
CUR_MAX_CACHED_PROCESSES = DEFAULT_MAX_CACHED_PROCESSES;
CUR_MAX_CACHED_PROCESSES = mCustomizedMaxCachedProcesses;
}
CUR_MAX_EMPTY_PROCESSES = computeEmptyProcessLimit(CUR_MAX_CACHED_PROCESSES);
@@ -1288,6 +1294,7 @@ final class ActivityManagerConstants extends ContentObserver {
if (mOverrideMaxCachedProcesses >= 0) {
pw.print(" mOverrideMaxCachedProcesses="); pw.println(mOverrideMaxCachedProcesses);
}
pw.print(" mCustomizedMaxCachedProcesses="); pw.println(mCustomizedMaxCachedProcesses);
pw.print(" CUR_MAX_CACHED_PROCESSES="); pw.println(CUR_MAX_CACHED_PROCESSES);
pw.print(" CUR_MAX_EMPTY_PROCESSES="); pw.println(CUR_MAX_EMPTY_PROCESSES);
pw.print(" CUR_TRIM_EMPTY_PROCESSES="); pw.println(CUR_TRIM_EMPTY_PROCESSES);