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
diff --git a/services/core/java/com/android/server/am/ProcessRecord.java b/services/core/java/com/android/server/am/ProcessRecord.java
index 03e140d..1f60755 100644
--- a/services/core/java/com/android/server/am/ProcessRecord.java
+++ b/services/core/java/com/android/server/am/ProcessRecord.java
@@ -66,6 +66,8 @@
final String processName; // name of the process
// List of packages running in the process
final ArrayMap<String, ProcessStats.ProcessStateHolder> pkgList = new ArrayMap<>();
+ final ProcessList.ProcStateMemTracker procStateMemTracker
+ = new ProcessList.ProcStateMemTracker();
UidRecord uidRecord; // overall state of process's uid.
ArraySet<String> pkgDeps; // additional packages we have a dependency on
IApplicationThread thread; // the actual proc... may be null only if
@@ -102,6 +104,7 @@
int repProcState = PROCESS_STATE_NONEXISTENT; // Last reported process state
int setProcState = PROCESS_STATE_NONEXISTENT; // Last set process state in process tracker
int pssProcState = PROCESS_STATE_NONEXISTENT; // Currently requesting pss for
+ int pssStatType; // The type of stat collection that we are currently requesting
int savedPriority; // Previous priority value if we're switching to non-SCHED_OTHER
int renderThreadTid; // TID for RenderThread
boolean serviceb; // Process currently is on the service B list
@@ -285,6 +288,7 @@
TimeUtils.formatDuration(lastActivityTime, nowUptime, pw);
pw.print(" lastPssTime=");
TimeUtils.formatDuration(lastPssTime, nowUptime, pw);
+ pw.print(" pssStatType="); pw.print(pssStatType);
pw.print(" nextPssTime=");
TimeUtils.formatDuration(nextPssTime, nowUptime, pw);
pw.println();
@@ -295,6 +299,8 @@
pw.print(" lastCachedPss="); DebugUtils.printSizeValue(pw, lastCachedPss*1024);
pw.print(" lastCachedSwapPss="); DebugUtils.printSizeValue(pw, lastCachedSwapPss*1024);
pw.println();
+ pw.print(prefix); pw.print("procStateMemTracker: ");
+ procStateMemTracker.dumpLine(pw);
pw.print(prefix); pw.print("cached="); pw.print(cached);
pw.print(" empty="); pw.println(empty);
if (serviceb) {