Capability based addressing on the i allows interprocess communication
methods that are impossible on any other architecture. I imagine the
classic JVM GC took advantage of this feature. In fact, I remember the
IBM developers saying something about this several years ago at COMMON.
Something to do with the research lab in Israel developing a very fast
(at the time) GC for iSeries JVM.
-----Original Message-----
From: java400-l-bounces@xxxxxxxxxxxx
[mailto:java400-l-bounces@xxxxxxxxxxxx] On Behalf Of Walden H. Leverich
Sent: Thursday, March 05, 2009 7:14 AM
To: Java Programming on and around the iSeries / AS400
Subject: RE: starting collection, reason stop the world collection
Joe,
My response wasn't aimed directly at you, hence my reply to the list,
and not directly to you. My response was (and is) simply that "It's in
there" may work for Prego, but doesn't cut it on computing technology.
If IBM wants to claim that the i does something unique and unlike the
rest of the world, show us the details. Specifically how does the JVM
manage garbage collection, and specifically heap compaction, w/out
stopping all the running threads.
-Walden
-----Original Message-----
From: java400-l-bounces@xxxxxxxxxxxx
[mailto:java400-l-bounces@xxxxxxxxxxxx] On Behalf Of Joe Sam Shirah
Sent: Wednesday, March 04, 2009 5:39 PM
To: Java Programming on and around the iSeries / AS400
Subject: Re: starting collection, reason stop the world collection
Mr. Leverich,
Maybe it's just my time of the month, or yours, and it doesn't
matter what you think of the AS/400, but I don't understand your
response.
To my simple mind, I believe I effectively said, "I don't know,
you'd have to ask someone who does" and speculated that the people who
wrote the OS may have shared with the people who wrote the JVM.
Possibly I'm wrong, and my apologies to anyone who felt wronged or
insulted, but I thought that was a fairly innocuous answer.
Probably you didn't mean to aim it at me, but from my view, I got a
rant aimed at me for not much reason.
I won't carry this any further, but neither will I ever respond to
any of your submissions.
To the rest of the list, sorry, you may now return to your normal
programming.
Joe Sam
Joe Sam Shirah -
http://www.conceptgo.com
conceptGO - Consulting/Development/Outsourcing
Java Filter Forum:
http://www.ibm.com/developerworks/java/
Just the JDBC FAQs:
http://www.jguru.com/faq/JDBC
Going International?
http://www.jguru.com/faq/I18N
Que Java400?
http://www.jguru.com/faq/Java400
----- Original Message -----
From: "Walden H. Leverich" <WaldenL@xxxxxxxxxxxxxxx>
To: "Java Programming on and around the iSeries / AS400"
<java400-l@xxxxxxxxxxxx>
Sent: Wednesday, March 04, 2009 4:28 PM
Subject: RE: starting collection, reason stop the world collection
You'd have to ask the right people at IBM about the details,
but the claim is that it's unique among garbage collectors.
Ah yes, the ever-present System-i "trust us, we're unique" answer.
Well,
I don't care enough to go track down the IBM people, and to be honest,
I
don't think they could/would answer the question anyway. The i is a
nice
piece of engineering, but at the end of the day it's still a computer,
it still has memory, disk, registers, cores, processing units, etc.
There's nothing magical that can occur on the i.
-Walden
--
Walden H Leverich III
Tech Software
(516) 627-3800 x3051
WaldenL@xxxxxxxxxxxxxxx
http://www.TechSoftInc.com
Quiquid latine dictum sit altum viditur.
(Whatever is said in Latin seems profound.)
--
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