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Merge "Dump KSM stats in the meminfo."

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This commit is contained in:
Dianne Hackborn
2012-04-05 16:46:08 -07:00
committed by Android (Google) Code Review
parent dc417687a3 d3e677bc50
commit 818e7e9c83
1 changed files with 23 additions and 0 deletions
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23
services/java/com/android/server/am/ActivityManagerService.java
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@@ -10262,6 +10262,29 @@ public final class ActivityManagerService extends ActivityManagerNative
}
pw.println();
pw.print("Total PSS: "); pw.print(totalPss); pw.println(" kB");
final int[] SINGLE_LONG_FORMAT = new int[] {
Process.PROC_SPACE_TERM|Process.PROC_OUT_LONG
};
long[] longOut = new long[1];
Process.readProcFile("/sys/kernel/mm/ksm/pages_shared",
SINGLE_LONG_FORMAT, null, longOut, null);
long shared = longOut[0] * ProcessList.PAGE_SIZE / 1024;
longOut[0] = 0;
Process.readProcFile("/sys/kernel/mm/ksm/pages_sharing",
SINGLE_LONG_FORMAT, null, longOut, null);
long sharing = longOut[0] * ProcessList.PAGE_SIZE / 1024;
longOut[0] = 0;
Process.readProcFile("/sys/kernel/mm/ksm/pages_unshared",
SINGLE_LONG_FORMAT, null, longOut, null);
long unshared = longOut[0] * ProcessList.PAGE_SIZE / 1024;
longOut[0] = 0;
Process.readProcFile("/sys/kernel/mm/ksm/pages_volatile",
SINGLE_LONG_FORMAT, null, longOut, null);
long voltile = longOut[0] * ProcessList.PAGE_SIZE / 1024;
pw.print(" KSM: "); pw.print(sharing); pw.print(" kB saved from shared ");
pw.print(shared); pw.println(" kB");
pw.print(" "); pw.print(unshared); pw.print(" kB unshared; ");
pw.print(voltile); pw.println(" kB volatile");
}
}