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blog_os/blog/templates/first-edition/comments/kernel-heap.html
2019-07-07 10:36:16 +02:00

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<div id="isso-root"><div id="isso-184" class="isso-comment isso-no-votes"><div class="avatar"><svg version="1.1" viewBox="0 0 48 48" preserveAspectRatio="xMinYMin meet" shape-rendering="crispEdges" data-hash="550e455fa548"><rect x="0" y="0" width="56" height="56" style="fill: #f0f0f0"></rect><rect x="4" y="4" width="8" height="8" style="fill: #9abf88"></rect><rect x="36" y="4" width="8" height="8" style="fill: #9abf88"></rect><rect x="4" y="12" width="8" height="8" style="fill: #9abf88"></rect><rect x="36" y="12" width="8" height="8" style="fill: #9abf88"></rect><rect x="4" y="20" width="8" height="8" style="fill: #9abf88"></rect><rect x="36" y="20" width="8" height="8" style="fill: #9abf88"></rect><rect x="4" y="36" width="8" height="8" style="fill: #9abf88"></rect><rect x="36" y="36" width="8" height="8" style="fill: #9abf88"></rect><rect x="12" y="20" width="8" height="8" style="fill: #9abf88"></rect><rect x="28" y="20" width="8" height="8" style="fill: #9abf88"></rect><rect x="12" y="36" width="8" height="8" style="fill: #9abf88"></rect><rect x="28" y="36" width="8" height="8" style="fill: #9abf88"></rect><rect x="20" y="12" width="8" height="8" style="fill: #9abf88"></rect><rect x="20" y="36" width="8" height="8" style="fill: #9abf88"></rect></svg></div><div class="text-wrapper"><div role="meta" class="isso-comment-header"><span class="author">Maksadbek </span><span class="spacer"></span><a rel="nofollow" href="#isso-184" class="permalink"><time title="Tue Apr 12 2016 14:50:41 GMT+0200 (Central European Summer Time)" datetime="2016-03-02T12:50:41Z">vor 3 Jahren</time></a><span class="note"></span></div><div class="text"><p>Nice article, thanks</p></div><div class="isso-comment-footer"><span class="votes">0</span><a rel="nofollow" href="#" class="upvote"><!-- Generator: IcoMoon.io --><svg width="16" height="16" viewBox="0 0 32 32" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" fill="gray">
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</a><a rel="nofollow" href="#" class="reply">Antworten</a></div><div class="isso-follow-up"></div></div></div><div id="isso-185" class="isso-comment"><div class="avatar"><svg version="1.1" viewBox="0 0 48 48" preserveAspectRatio="xMinYMin meet" shape-rendering="crispEdges" data-hash="ef7f9927b8cb"><rect x="0" y="0" width="56" height="56" style="fill: #f0f0f0"></rect><rect x="4" y="4" width="8" height="8" style="fill: #9163b6"></rect><rect x="36" y="4" width="8" height="8" style="fill: #9163b6"></rect><rect x="4" y="12" width="8" height="8" style="fill: #9163b6"></rect><rect x="36" y="12" width="8" height="8" style="fill: #9163b6"></rect><rect x="4" y="20" width="8" height="8" style="fill: #9163b6"></rect><rect x="36" y="20" width="8" height="8" style="fill: #9163b6"></rect><rect x="4" y="36" width="8" height="8" style="fill: #9163b6"></rect><rect x="36" y="36" width="8" height="8" style="fill: #9163b6"></rect><rect x="12" y="4" width="8" height="8" style="fill: #9163b6"></rect><rect x="28" y="4" width="8" height="8" style="fill: #9163b6"></rect><rect x="12" y="12" width="8" height="8" style="fill: #9163b6"></rect><rect x="28" y="12" width="8" height="8" style="fill: #9163b6"></rect><rect x="20" y="4" width="8" height="8" style="fill: #9163b6"></rect><rect x="20" y="12" width="8" height="8" style="fill: #9163b6"></rect><rect x="20" y="36" width="8" height="8" style="fill: #9163b6"></rect></svg></div><div class="text-wrapper"><div role="meta" class="isso-comment-header"><span class="author">Janus Troelsen</span><span class="spacer"></span><a rel="nofollow" href="#isso-185" class="permalink"><time title="Wed Apr 13 2016 17:41:12 GMT+0200 (Central European Summer Time)" datetime="2016-03-03T15:41:12Z">vor 3 Jahren</time></a><span class="note"></span></div><div class="text"><p>"We have some well tested B-tree" Where can I find the source code for that B-tree implementation?</p></div><div class="isso-comment-footer"><span class="votes">1</span><a rel="nofollow" href="#" class="upvote"><!-- Generator: IcoMoon.io --><svg width="16" height="16" viewBox="0 0 32 32" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" fill="gray">
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</a><a rel="nofollow" href="#" class="reply">Antworten</a></div><div class="isso-follow-up"></div></div></div><div id="isso-188" class="isso-comment isso-no-votes"><div class="avatar"><svg version="1.1" viewBox="0 0 48 48" preserveAspectRatio="xMinYMin meet" shape-rendering="crispEdges" data-hash="e826c391e2fe"><rect x="0" y="0" width="56" height="56" style="fill: #f0f0f0"></rect><rect x="4" y="12" width="8" height="8" style="fill: #e4bf80"></rect><rect x="36" y="12" width="8" height="8" style="fill: #e4bf80"></rect><rect x="4" y="20" width="8" height="8" style="fill: #e4bf80"></rect><rect x="36" y="20" width="8" height="8" style="fill: #e4bf80"></rect><rect x="4" y="28" width="8" height="8" style="fill: #e4bf80"></rect><rect x="36" y="28" width="8" height="8" style="fill: #e4bf80"></rect><rect x="4" y="36" width="8" height="8" style="fill: #e4bf80"></rect><rect x="36" y="36" width="8" height="8" style="fill: #e4bf80"></rect><rect x="12" y="28" width="8" height="8" style="fill: #e4bf80"></rect><rect x="28" y="28" width="8" height="8" style="fill: #e4bf80"></rect><rect x="20" y="4" width="8" height="8" style="fill: #e4bf80"></rect><rect x="20" y="12" width="8" height="8" style="fill: #e4bf80"></rect><rect x="20" y="20" width="8" height="8" style="fill: #e4bf80"></rect><rect x="20" y="28" width="8" height="8" style="fill: #e4bf80"></rect><rect x="20" y="36" width="8" height="8" style="fill: #e4bf80"></rect></svg></div><div class="text-wrapper"><div role="meta" class="isso-comment-header"><span class="author">Ryan Breen</span><span class="spacer"></span><a rel="nofollow" href="#isso-188" class="permalink"><time title="Mon Apr 25 2016 02:20:33 GMT+0200 (Central European Summer Time)" datetime="2016-03-01T00:20:33Z">vor 3 Jahren</time></a><span class="note"></span></div><div class="text"><p>Love this series of articles! I'm very new to Rust and kernel development, and I've really enjoyed following along and trying to experiment a bit with alternative implementations. In that vein, I ported the inimitable gz's rust-slabmalloc (<a rel="nofollow" href="https://github.com/gz">https://github.com/gz)</a> to run in my implementation of these tutorials: <a rel="nofollow" href="https://github.com/ryanbreen/breenix/tree/master/src/memory">https://github.com/ryanbree...</a></p><p>One potentially interesting approach I tried, taking a bit of a page from Linux which I know uses a dumbed down allocator for the early allocation during kernel boot, is to have my Rust allocator be tiered: during early kernel boot, it uses a bump allocator. The only allocations done by the bump allocator are to set up the memory to be used by the slab_allocator. This meant I could get the benefit of collections when porting slab_allocator, so I dropped its internal data structure in favor of a plain old vec.</p><p>Thanks for this series! You're doing awesome work and giving people a world of new educational opportunities.</p></div><div class="isso-comment-footer"><span class="votes">0</span><a rel="nofollow" href="#" class="upvote"><!-- Generator: IcoMoon.io --><svg width="16" height="16" viewBox="0 0 32 32" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" fill="gray">
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</a><a rel="nofollow" href="#" class="reply">Antworten</a></div><div class="isso-follow-up"><div id="isso-189" class="isso-comment isso-no-votes"><div class="avatar"><svg version="1.1" viewBox="0 0 48 48" preserveAspectRatio="xMinYMin meet" shape-rendering="crispEdges" data-hash="666df3217240"><rect x="0" y="0" width="56" height="56" style="fill: #f0f0f0"></rect><rect x="4" y="12" width="8" height="8" style="fill: #9abf88"></rect><rect x="36" y="12" width="8" height="8" style="fill: #9abf88"></rect><rect x="4" y="28" width="8" height="8" style="fill: #9abf88"></rect><rect x="36" y="28" width="8" height="8" style="fill: #9abf88"></rect><rect x="4" y="36" width="8" height="8" style="fill: #9abf88"></rect><rect x="36" y="36" width="8" height="8" style="fill: #9abf88"></rect><rect x="12" y="4" width="8" height="8" style="fill: #9abf88"></rect><rect x="28" y="4" width="8" height="8" style="fill: #9abf88"></rect><rect x="12" y="28" width="8" height="8" style="fill: #9abf88"></rect><rect x="28" y="28" width="8" height="8" style="fill: #9abf88"></rect><rect x="20" y="12" width="8" height="8" style="fill: #9abf88"></rect></svg></div><div class="text-wrapper"><div role="meta" class="isso-comment-header"><span class="author">Philipp Oppermann</span><span class="spacer"></span><a rel="nofollow" href="#isso-189" class="permalink"><time title="Mon Apr 25 2016 13:53:27 GMT+0200 (Central European Summer Time)" datetime="2016-03-01T11:53:27Z">vor 3 Jahren</time></a><span class="note"></span></div><div class="text"><p>Thanks so much!</p><p>I really like your approach of building allocators on top of each other (and I will take a closer look when I have some time). Maybe it's even possible to create an allocator based on a B-tree…?</p></div><div class="isso-comment-footer"><span class="votes">0</span><a rel="nofollow" href="#" class="upvote"><!-- Generator: IcoMoon.io --><svg width="16" height="16" viewBox="0 0 32 32" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" fill="gray">
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<p>A guide to the new allocator:</p>
<p><a rel="nofollow" href="https://github.com/rust-lang/rfcs/blob/master/text/1974-global-allocators.md">https://github.com/rust-lang/rfcs/blob/master/text/1974-global-allocators.md</a></p></div><div class="isso-comment-footer"><span class="votes">0</span><a rel="nofollow" href="#" class="upvote"><!-- Generator: IcoMoon.io --><svg width="16" height="16" viewBox="0 0 32 32" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" fill="gray">
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</a><a rel="nofollow" href="#" class="reply">Antworten</a></div><div class="isso-follow-up"></div></div></div><div id="isso-334" class="isso-comment"><div class="avatar"><svg version="1.1" viewBox="0 0 48 48" preserveAspectRatio="xMinYMin meet" shape-rendering="crispEdges" data-hash="8c9119b1b577"><rect x="0" y="0" width="56" height="56" style="fill: #f0f0f0"></rect><rect x="4" y="12" width="8" height="8" style="fill: #447c69"></rect><rect x="36" y="12" width="8" height="8" style="fill: #447c69"></rect><rect x="4" y="20" width="8" height="8" style="fill: #447c69"></rect><rect x="36" y="20" width="8" height="8" style="fill: #447c69"></rect><rect x="4" y="36" width="8" height="8" style="fill: #447c69"></rect><rect x="36" y="36" width="8" height="8" style="fill: #447c69"></rect><rect x="12" y="4" width="8" height="8" style="fill: #447c69"></rect><rect x="28" y="4" width="8" height="8" style="fill: #447c69"></rect><rect x="12" y="20" width="8" height="8" style="fill: #447c69"></rect><rect x="28" y="20" width="8" height="8" style="fill: #447c69"></rect><rect x="12" y="36" width="8" height="8" style="fill: #447c69"></rect><rect x="28" y="36" width="8" height="8" style="fill: #447c69"></rect><rect x="20" y="12" width="8" height="8" style="fill: #447c69"></rect><rect x="20" y="20" width="8" height="8" style="fill: #447c69"></rect><rect x="20" y="28" width="8" height="8" style="fill: #447c69"></rect></svg></div><div class="text-wrapper"><div role="meta" class="isso-comment-header"><span class="author">Johan Montelius</span><span class="spacer"></span><a rel="nofollow" href="#isso-334" class="permalink"><time title="Thu Oct 19 2017 17:46:21 GMT+0200 (Central European Summer Time)" datetime="2017-09-04T15:46:21Z">letztes Jahr</time></a><span class="note"></span></div><div class="text"><p>I like the idea of introducing a simple Bump allocator since it show how little we need to do to get dynamic memory allocation working. My rust skills are still modest but I'll give it a try to rewrite it using the new interface.</p></div><div class="isso-comment-footer"><span class="votes">1</span><a rel="nofollow" href="#" class="upvote"><!-- Generator: IcoMoon.io --><svg width="16" height="16" viewBox="0 0 32 32" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" fill="gray">
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</a><a rel="nofollow" href="#" class="reply">Antworten</a></div><div class="isso-follow-up"></div></div></div><div id="isso-loader-328" class="isso-comment-loader"><a rel="nofollow" href="#" class="load_hidden">1 versteckt</a></div></div></div></div><div id="isso-339" class="isso-comment isso-no-votes"><div class="avatar"><svg version="1.1" viewBox="0 0 48 48" preserveAspectRatio="xMinYMin meet" shape-rendering="crispEdges" data-hash="cf022e3f6186"><rect x="0" y="0" width="56" height="56" style="fill: #f0f0f0"></rect><rect x="4" y="4" width="8" height="8" style="fill: #e4bf80"></rect><rect x="36" y="4" width="8" height="8" style="fill: #e4bf80"></rect><rect x="4" y="12" width="8" height="8" style="fill: #e4bf80"></rect><rect x="36" y="12" width="8" height="8" style="fill: #e4bf80"></rect><rect x="4" y="28" width="8" height="8" style="fill: #e4bf80"></rect><rect x="36" y="28" width="8" height="8" style="fill: #e4bf80"></rect><rect x="4" y="36" width="8" height="8" style="fill: #e4bf80"></rect><rect x="36" y="36" width="8" height="8" style="fill: #e4bf80"></rect><rect x="12" y="36" width="8" height="8" style="fill: #e4bf80"></rect><rect x="28" y="36" width="8" height="8" style="fill: #e4bf80"></rect><rect x="20" y="4" width="8" height="8" style="fill: #e4bf80"></rect></svg></div><div class="text-wrapper"><div role="meta" class="isso-comment-header"><span class="author">Anonym</span><span class="spacer"></span><a rel="nofollow" href="#isso-339" class="permalink"><time title="Fri Oct 27 2017 12:54:30 GMT+0200 (Central European Summer Time)" datetime="2017-09-05T10:54:30Z">letztes Jahr</time></a><span class="note"></span></div><div class="text"><p>The link to "the book" is not valid when talking about the allocator functions one needs to implement</p></div><div class="isso-comment-footer"><span class="votes">0</span><a rel="nofollow" href="#" class="upvote"><!-- Generator: IcoMoon.io --><svg width="16" height="16" viewBox="0 0 32 32" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" fill="gray">
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{% endraw %}