Displaying a bytecounter for events in memory when the app pauses.

app/src/main/java/com/vitorpamplona/amethyst/service/model/Event.kt

@@ -9,6 +9,7 @@ import com.vitorpamplona.amethyst.model.TimeUtils
 import com.vitorpamplona.amethyst.model.toHexKey
 import com.vitorpamplona.amethyst.service.CryptoUtils
 import com.vitorpamplona.amethyst.service.nip19.Nip19
+import com.vitorpamplona.amethyst.service.relays.bytesUsedInMemory
 import fr.acinq.secp256k1.Hex
 import java.lang.reflect.Type
 import java.math.BigDecimal
@@ -24,6 +25,16 @@ open class Event(
     val content: String,
     val sig: HexKey
 ) : EventInterface {
+
+    override fun countMemory(): Long {
+        return 12L +
+            id.bytesUsedInMemory() +
+            pubKey.bytesUsedInMemory() +
+            tags.sumOf { it.sumOf { it.bytesUsedInMemory() } } +
+            content.bytesUsedInMemory() +
+            sig.bytesUsedInMemory()
+    }
+
     override fun id(): HexKey = id
 
     override fun pubKey(): HexKey = pubKey

app/src/main/java/com/vitorpamplona/amethyst/service/model/EventInterface.kt

@@ -6,6 +6,8 @@ import java.math.BigDecimal
 
 @Immutable
 interface EventInterface {
+    fun countMemory(): Long
+
     fun id(): HexKey
 
     fun pubKey(): HexKey

app/src/main/java/com/vitorpamplona/amethyst/ui/navigation/AppTopBar.kt

@@ -514,6 +514,8 @@ fun debugState(context: Context) {
     Log.d("STATE DUMP", "Addressables: " + LocalCache.addressables.filter { it.value.event != null }.size + "/" + LocalCache.addressables.size)
     Log.d("STATE DUMP", "Users: " + LocalCache.users.filter { it.value.info?.latestMetadata != null }.size + "/" + LocalCache.users.size)
 
+    Log.d("STATE DUMP", "Memory used by Events: " + LocalCache.notes.values.sumOf { it.event?.countMemory() ?: 0 } / (1024 * 1024) + " MB")
+
     LocalCache.notes.values.groupBy { it.event?.kind() }.forEach {
         Log.d("STATE DUMP", "Kind ${it.key}: \t${it.value.size} elements ")
     }