More work on issue #2030135: Device sluggish (151ceb96) · Commits · e / os / android_frameworks_base

services/java/com/android/server/ProcessStats.java

+58 −16

Original line number	Diff line number	Diff line
		@@ -46,18 +46,23 @@ public class ProcessStats {
		PROC_SPACE_TERM,
		PROC_SPACE_TERM,
		PROC_SPACE_TERM,
		PROC_SPACE_TERM\|PROC_OUT_LONG, // 9: minor faults
		PROC_SPACE_TERM,
		PROC_SPACE_TERM,
		PROC_SPACE_TERM,
		PROC_SPACE_TERM\|PROC_OUT_LONG, // 11: major faults
		PROC_SPACE_TERM,
		PROC_SPACE_TERM\|PROC_OUT_LONG, // 13: utime
		PROC_SPACE_TERM\|PROC_OUT_LONG // 14: stime
		};

		static final int PROCESS_STAT_MINOR_FAULTS = 0;
		static final int PROCESS_STAT_MAJOR_FAULTS = 1;
		static final int PROCESS_STAT_UTIME = 2;
		static final int PROCESS_STAT_STIME = 3;

		/** Stores user time and system time in 100ths of a second. */
		private final long[] mProcessStatsData = new long[2];
		private final long[] mProcessStatsData = new long[4];
		/** Stores user time and system time in 100ths of a second. */
		private final long[] mSinglePidStatsData = new long[2];
		private final long[] mSinglePidStatsData = new long[4];

		private static final int[] PROCESS_FULL_STATS_FORMAT = new int[] {
		PROC_SPACE_TERM,
		@@ -151,6 +156,11 @@ public class ProcessStats {
		public int rel_utime;
		public int rel_stime;

		public long base_minfaults;
		public long base_majfaults;
		public int rel_minfaults;
		public int rel_majfaults;

		public boolean active;
		public boolean added;
		public boolean removed;
		@@ -313,12 +323,16 @@ public class ProcessStats {
		continue;
		}

		final long utime = procStats[0];
		final long stime = procStats[1];
		final long minfaults = procStats[PROCESS_STAT_MINOR_FAULTS];
		final long majfaults = procStats[PROCESS_STAT_MAJOR_FAULTS];
		final long utime = procStats[PROCESS_STAT_UTIME];
		final long stime = procStats[PROCESS_STAT_STIME];

		if (utime == st.base_utime && stime == st.base_stime) {
		st.rel_utime = 0;
		st.rel_stime = 0;
		st.rel_minfaults = 0;
		st.rel_majfaults = 0;
		if (st.active) {
		st.active = false;
		}
		@@ -342,6 +356,10 @@ public class ProcessStats {
		st.rel_stime = (int)(stime - st.base_stime);
		st.base_utime = utime;
		st.base_stime = stime;
		st.rel_minfaults = (int)(minfaults - st.base_minfaults);
		st.rel_majfaults = (int)(majfaults - st.base_majfaults);
		st.base_minfaults = minfaults;
		st.base_majfaults = majfaults;
		//Log.i("Load", "Stats changed " + name + " pid=" + st.pid
		// + " name=" + st.name + " utime=" + utime
		// + " stime=" + stime);
		@@ -364,11 +382,13 @@ public class ProcessStats {
		procStats, null)) {
		st.baseName = parentPid < 0
		? procStatsString[0] : Integer.toString(pid);
		st.base_utime = procStats[1];
		st.base_stime = procStats[2];
		st.base_utime = 0; //procStats[1];
		st.base_stime = 0; //procStats[2];
		st.base_minfaults = st.base_majfaults = 0;
		} else {
		st.baseName = "<unknown>";
		st.base_utime = st.base_stime = 0;
		st.base_minfaults = st.base_majfaults = 0;
		}

		if (parentPid < 0) {
		@@ -386,6 +406,8 @@ public class ProcessStats {
		//Log.i("Load", "New process: " + st.pid + " " + st.name);
		st.rel_utime = 0;
		st.rel_stime = 0;
		st.rel_minfaults = 0;
		st.rel_majfaults = 0;
		st.added = true;
		if (!first) {
		workingProcs.add(st);
		@@ -396,6 +418,8 @@ public class ProcessStats {
		// This process has gone away!
		st.rel_utime = 0;
		st.rel_stime = 0;
		st.rel_minfaults = 0;
		st.rel_majfaults = 0;
		st.removed = true;
		workingProcs.add(st);
		allProcs.remove(curStatsIndex);
		@@ -412,6 +436,8 @@ public class ProcessStats {
		final Stats st = allProcs.get(curStatsIndex);
		st.rel_utime = 0;
		st.rel_stime = 0;
		st.rel_minfaults = 0;
		st.rel_majfaults = 0;
		st.removed = true;
		workingProcs.add(st);
		allProcs.remove(curStatsIndex);
		@@ -427,7 +453,8 @@ public class ProcessStats {
		final long[] statsData = mSinglePidStatsData;
		if (Process.readProcFile(statFile, PROCESS_STATS_FORMAT,
		null, statsData, null)) {
		long time = statsData[0] + statsData[1];
		long time = statsData[PROCESS_STAT_UTIME]
		+ statsData[PROCESS_STAT_STIME];
		return time;
		}
		return 0;
		@@ -497,33 +524,35 @@ public class ProcessStats {
		pw.print(now-mCurrentSampleTime);
		pw.println("ms ago:");

		final int totalTime = mRelUserTime + mRelSystemTime + mRelIoWaitTime + mRelIrqTime +
		mRelSoftIrqTime + mRelIdleTime;
		final int totalTime = mRelUserTime + mRelSystemTime + mRelIoWaitTime
		+ mRelIrqTime + mRelSoftIrqTime + mRelIdleTime;

		int N = mWorkingProcs.size();
		for (int i=0; i<N; i++) {
		Stats st = mWorkingProcs.get(i);
		printProcessCPU(pw, st.added ? " +" : (st.removed ? " -": " "),
		st.name, totalTime, st.rel_utime, st.rel_stime, 0, 0, 0);
		st.name, totalTime, st.rel_utime, st.rel_stime, 0, 0, 0,
		st.rel_minfaults, st.rel_majfaults);
		if (!st.removed && st.workingThreads != null) {
		int M = st.workingThreads.size();
		for (int j=0; j<M; j++) {
		Stats tst = st.workingThreads.get(j);
		printProcessCPU(pw,
		tst.added ? " +" : (tst.removed ? " -": " "),
		tst.name, totalTime, tst.rel_utime, tst.rel_stime, 0, 0, 0);
		tst.name, totalTime, tst.rel_utime, tst.rel_stime,
		0, 0, 0, 0, 0);
		}
		}
		}

		printProcessCPU(pw, "", "TOTAL", totalTime, mRelUserTime, mRelSystemTime, mRelIoWaitTime,
		mRelIrqTime, mRelSoftIrqTime);
		printProcessCPU(pw, "", "TOTAL", totalTime, mRelUserTime, mRelSystemTime,
		mRelIoWaitTime, mRelIrqTime, mRelSoftIrqTime, 0, 0);

		return sw.toString();
		}

		private void printProcessCPU(PrintWriter pw, String prefix, String label, int totalTime,
		int user, int system, int iowait, int irq, int softIrq) {
		int user, int system, int iowait, int irq, int softIrq, int minFaults, int majFaults) {
		pw.print(prefix);
		pw.print(label);
		pw.print(": ");
		@@ -549,6 +578,19 @@ public class ProcessStats {
		pw.print((softIrq*100)/totalTime);
		pw.print("% softirq");
		}
		if (minFaults > 0 \|\| majFaults > 0) {
		pw.print(" / faults:");
		if (minFaults > 0) {
		pw.print(" ");
		pw.print(minFaults);
		pw.print(" minor");
		}
		if (majFaults > 0) {
		pw.print(" ");
		pw.print(majFaults);
		pw.print(" major");
		}
		}
		pw.println();
		}