Re: Passing a Method Name to a Method, Redux

From:
Lew <noone@lewscanon.com>
Newsgroups:
comp.lang.java.programmer
Date:
Sun, 26 Jun 2011 14:31:06 -0400
Message-ID:
<iu7tt5$nkr$1@news.albasani.net>
On 06/26/2011 01:43 PM, Lew wrote:

On 06/24/2011 12:04 PM, markspace wrote:

On 6/24/2011 8:38 AM, lewbloch wrote:

You'll want to run each loop a bunch of times (10,000? 100,000?>=
1M?) before starting the timing loop in order to cancel the effects of
HotSpot warmup.


I was hoping that the -server flag would obviate most or all warm-up (this is
from another post in this tread):

C:\Users\Brenden\Dev\Test2\src>java -server test.CallingTest

No?


No. How could it?


"-server

"JVMs based on Sun's Hotspot technology initially compile class methods with a
low optimization level. These JVMs use a simple complier [sic] and an
optimizing JIT compiler. Normally the simple JIT compiler is used. However you
can use this option to make the optimizing compiler the one that is used. This
change will significantly increases [sic] the performance of the server but
the server takes longer to warm up when the optimizing compiler is used."

<http://publib.boulder.ibm.com/infocenter/wasinfo/v6r0/index.jsp?topic=/com.ibm.websphere.express.doc/info/exp/ae/tprf_tunejvm.html>

--
Lew
Honi soit qui mal y pense.
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