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From: Pavel Tupitsyn <ptupitsyn@gridgain.com>
Date: Thu, 5 May 2016 18:14:35 +0300
Message-ID: <CAK2_iMPXyFDZv8xZZv9YsKeJ2+EYv-N42rfOeE18f0kzpBTqqw@mail.gmail.com>
Subject: Re: Off-Heap Memory - simpler explanation than in docs
To: user@ignite.apache.org
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archived-at: Thu, 05 May 2016 15:15:13 -0000

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Hi, what exactly is not clear?

When you create objects in Java, they end up on JVM heap, in managed
memory. These objects are subject to automatic garbage collection.
Ignite Off-Heap Memory feature stores cache data in unmanaged memory
(manual allocation/deallocation, like you do in C and other unmanaged
languages).
This reduces GC load (better performance, less GC pauses).

Let me know if this helps.

Pavel.

On Thu, May 5, 2016 at 5:08 PM, tomk <rrrtomtomrrr@gmail.com> wrote:

> Hello,
> Could someone explain this in simpler way ? Maybe some intuition ?
>
>
>
> --
> View this message in context:
> http://apache-ignite-users.70518.x6.nabble.com/Off-Heap-Memory-simpler-explanation-than-in-docs-tp4790.html
> Sent from the Apache Ignite Users mailing list archive at Nabble.com.
>

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<div dir=3D"ltr">Hi, what exactly is not clear?<div><br></div><div>When you=
 create objects in Java, they end up on JVM heap, in managed memory. These =
objects are subject to automatic garbage collection.</div><div>Ignite Off-H=
eap Memory feature stores cache data in unmanaged memory (manual allocation=
/deallocation, like you do in C and other unmanaged languages).</div><div>T=
his reduces GC load (better performance, less GC pauses).</div><div><br></d=
iv><div>Let me know if this helps.</div><div><br></div><div>Pavel.</div></d=
iv><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">On Thu, May 5,=
 2016 at 5:08 PM, tomk <span dir=3D"ltr">&lt;<a href=3D"mailto:rrrtomtomrrr=
@gmail.com" target=3D"_blank">rrrtomtomrrr@gmail.com</a>&gt;</span> wrote:<=
br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left=
:1px #ccc solid;padding-left:1ex">Hello,<br>
Could someone explain this in simpler way ? Maybe some intuition ?<br>
<br>
<br>
<br>
--<br>
View this message in context: <a href=3D"http://apache-ignite-users.70518.x=
6.nabble.com/Off-Heap-Memory-simpler-explanation-than-in-docs-tp4790.html" =
rel=3D"noreferrer" target=3D"_blank">http://apache-ignite-users.70518.x6.na=
bble.com/Off-Heap-Memory-simpler-explanation-than-in-docs-tp4790.html</a><b=
r>
Sent from the Apache Ignite Users mailing list archive at Nabble.com.<br>
</blockquote></div><br></div>

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