Gregory Shimansky wrote: > I was not aware that drlvm didn't generate MethodEnter/Exit events for native > methods when I wrote this email. Now after applying HARMONY-2828 which fills > this gap I've rerun my test agent and the top10 for most called methods to > run hello world application has changed. The new top10 list looks like this: > > 157114 Ljava/io/ByteArrayOutputStream;.write(I)V > 20093 Ljava/lang/Object;.<init>()V > 13975 Ljava/lang/String;.hashCode()I > 9301 Ljava/lang/Character;.toLowerCase(C)C > 7842 Ljava/io/ByteArrayOutputStream;.size()I > 7692 Ljava/lang/String;.<init>(II[C)V > 6300 > Ljava/lang/VMMemoryManager;.arrayCopy(Ljava/lang/Object;ILjava/lang/Object;II)V > 6300 Ljava/lang/System;.arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V > 6248 Ljava/lang/String;.length()I > 6130 Ljava/lang/String;.substring(II)Ljava/lang/String; > > We seem to copy memory really too much...
Not sure I get these results: assuming a "hello world" application reads only, why is 80% of the time spent writing? -- Stefano.
