From 05f6f08832ea18821c9b55ca0f53167adfdc828b Mon Sep 17 00:00:00 2001
From: Peter Serwylo <peter@serwylo.com>
Date: Wed, 29 Mar 2017 15:41:06 +1100
Subject: [PATCH] Add Profiler class for diagnosing performance problems.
Unused for now, but like with the `LoggingQuery`, it is helpful to
be used for debugging purposes. For example, used this to quickly
figure out that it took 7 seconds to fix the PRNG stuff in FDroidApp
onCreate().
---
app/src/main/java/org/fdroid/fdroid/Utils.java | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/app/src/main/java/org/fdroid/fdroid/Utils.java b/app/src/main/java/org/fdroid/fdroid/Utils.java
index b26768c86..c812e1273 100644
--- a/app/src/main/java/org/fdroid/fdroid/Utils.java
+++ b/app/src/main/java/org/fdroid/fdroid/Utils.java
@@ -623,4 +623,19 @@ public final class Utils {
Resources r = ctx.getResources();
return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dp, r.getDisplayMetrics());
}
+
+ @SuppressWarnings("unused")
+ public static class Profiler {
+ public final long startTime = System.currentTimeMillis();
+ public final String logTag;
+
+ public Profiler(String logTag) {
+ this.logTag = logTag;
+ }
+
+ public void log(String message) {
+ long duration = System.currentTimeMillis() - startTime;
+ Utils.debugLog(logTag, "[" + duration + "ms] " + message);
+ }
+ }
}