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Article #153405Spotkanie Poznań JUG: sizeof(new Object()): how much memory objects take on JVMs and when this may matter [08.05.2012]
From: adudczak
Date: Tue, 24 Apr 2012 21:02
Date: Tue, 24 Apr 2012 21:02
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3012 bytes
Cześć, Zapraszamy wszystkich na kolejne spotkanie Poznań JUG, które odbędzie się we wtorek (08.05.2012) o godzinie 18:00 w siedzibie Cognifide (ul. Murawa 12-18, Poznań). Dawid Weiss poprowadzi prezentację pt. "sizeof(new Object()). sizeof(new Object()): how much memory objects take on JVMs and when this may matter.". Osoby które zdecydują się uczestniczyć w spotkaniu powinny się zarejestrować tutaj [http:// oiola.com/e/942-spotkanie-poznan-jug-sizeofnew-object-accessing- storage-layer-in-modern/reg/]. A oto streszczenie nadesłane przez Dawida: "I had a dream. In that dream I saw Java objects, including their fields, headers and paddings. As they were laid out in physical memory. All aligned, but not equal.The time has come to make this dream come true -- to break the barriers of abstraction and touch the bare metal of objects' existence. After this presentation you should know what the cost of creating objects (and fields) is, how to estimate the memory occupied (and required) for a set of objects and how physical memory layout can severely degrade performance of a multi threaded application even if everything seems fine at the source code level." Dawid Weiss dr inż., jest programistą, który ma doświadczenie zarówno w projektach naukowych jak i komercyjnych, realizowanych w Javie, ale również w Ruby, Pythonie, Assemblerze czy C# . Jest współtwórcą Carrot2 (http://carrot2.org), narzędzia służącego do grupowania wyników zapytań oraz współzałożycielem firmy Carrot-Search (http:// carrot-search.com). pozdrawiam Adam Dudczak
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Path: mbox-mo1.pugleaf.net!news-archive.icm.edu.pl!agh.edu.pl!news.agh.edu.pl!newsfeed2.atman.pl!newsfeed.atman.pl!goblin2!goblin.stu.neva.ru!feed.news.qwest.net!mpls-nntp-01.inet.qwest.net!216.196.98.143.MISMATCH!border4.nntp.dca.giganews.com!border2.nntp.dca.giganews.com!nntp.giganews.com!postnews.google.com!21g2000vbh.googlegroups.com!not-for-mail From: adudczak <adudczak@gmail.com> Newsgroups: pl.comp.lang.java Subject: Spotkanie Poznań JUG: sizeof(new Object()): how much memory objects take on JVMs and when this may matter [08.05.2012] Date: Tue, 24 Apr 2012 14:02:53 -0700 (PDT) Organization: http://groups.google.com Lines: 36 Message-ID: <76124999-8974-4a55-8837-bae1f997341e@21g2000vbh.googlegroups.com> NNTP-Posting-Host: 79.173.22.214 Mime-Version: 1.0 X-Trace: posting.google.com 1335301498 7424 127.0.0.1 (24 Apr 2012 21:04:58 GMT) X-Complaints-To: groups-abuse@google.com NNTP-Posting-Date: Tue, 24 Apr 2012 21:04:58 +0000 (UTC) Complaints-To: groups-abuse@google.com Injection-Info: 21g2000vbh.googlegroups.com; posting-host=79.173.22.214; posting-account=XS0dvAoAAABsojvYX_yC4EYw08ft5uYd User-Agent: G2/1.0 X-HTTP-UserAgent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/535.19 (KHTML, like Gecko) Ubuntu/12.04 Chromium/18.0.1025.151 Chrome/18.0.1025.151 Safari/535.19,gzip(gfe) Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit