Reduce pss collection amount, improve logging.

Tuned rates that we collect PSS, to reduce how much we do
that heavy operation.  Added a new way to determine
whether a process has changed to a state for the
"first" time -- now this is when it has gone to that
state for the first time since it was in a lower state.
This will reduce the amount of time we consider a
process to be first to only when it has previously
gone into a higher state than it had before.

Keep track of more fine-grained information about why we
collect a PSS sample (not just internal, but for a single
process, all processes because of a mem state change, all
processes because of a poll).

Started collecting RSS in various places, so we can start
looking at that w.r.t. PSS and see about transitioning to
it is a new primary metric.

Added logging for many of the places where the system
writes its configuration files, so we can more easily
see any bad behavior going on in those areas.

Added some currently disabled code to read smaps directly
instead of using fgets().  Probably won't help, but want
tot test.

Bug: 70859548
Test: atest CtsAppTestCases
Change-Id: I400dba0f3ae9c024df51c946cfa592561028b598

2 files changed, 2 insertions, 2 deletions

diff --git a/packages/PrintSpooler/src/com/android/printspooler/model/PrintSpoolerService.java b/packages/PrintSpooler/src/com/android/printspooler/model/PrintSpoolerService.java
index 6c7441802d63..f6a259dbf982 100644
--- a/packages/PrintSpooler/src/com/android/printspooler/model/PrintSpoolerService.java
+++ b/packages/PrintSpooler/src/com/android/printspooler/model/PrintSpoolerService.java
@@ -889,7 +889,7 @@ public final class PrintSpoolerService extends Service {
 
         private PersistenceManager() {
             mStatePersistFile = new AtomicFile(new File(getFilesDir(),
-                    PERSIST_FILE_NAME));
+                    PERSIST_FILE_NAME), "print-spooler");
         }
 
         public void writeStateLocked() {
diff --git a/packages/PrintSpooler/src/com/android/printspooler/ui/FusedPrintersProvider.java b/packages/PrintSpooler/src/com/android/printspooler/ui/FusedPrintersProvider.java
index 793544082af9..5be0176cf4cc 100644
--- a/packages/PrintSpooler/src/com/android/printspooler/ui/FusedPrintersProvider.java
+++ b/packages/PrintSpooler/src/com/android/printspooler/ui/FusedPrintersProvider.java
@@ -547,7 +547,7 @@ public final class FusedPrintersProvider extends Loader<List<PrinterInfo>>
 
         private PersistenceManager(final Activity activity, final int internalLoaderId) {
             mStatePersistFile = new AtomicFile(new File(activity.getFilesDir(),
-                    PERSIST_FILE_NAME));
+                    PERSIST_FILE_NAME), "printer-history");
 
             // Initialize enabled services to make sure they are set are the read task might be done
             // before the loader updated the services the first time.