Mesh: Compacting Memory Management for C/C++ Applications · HackerPapers discussions

Mesh: Compacting Memory Management for C/C++ Applications — mentioned by superjan

Sat, 11 Jan 2025 12:48:42 GMT

There’s a great paper from the group of Emery Berger, where they merge memory pages that become sparse. A kind of garbage collection for C and C++ languages. There’s also a good presentation about it on youtube. https://arxiv.org/abs/1902.04738 The presentation: https://youtu.be/c1UBJbfR-H0

Paper and discussion history. A mention is not an endorsement.

Mesh: Compacting Memory Management for C/C++ Applications — mentioned by verdagon

Wed, 12 Jul 2023 14:14:01 GMT

In the basic generational references approach that was a drawback, and the reason it couldn't release memory back to the OS. We planned to use something like MESH [0] to reduce the fragmentation. We created two newer approaches since then, which let any memory be reused for any purpose: * Random generational references, where it's fine if generations overlap with other data. * Side-table generations, which is slower but we keep the generations in a side-table. It's can be seen in old 0.1 versions as the "resilient-v2" mode, and I plan on resurrecting it for unrelated reasons. The former will…

Paper and discussion history. A mention is not an endorsement.

Mesh: Compacting Memory Management for C/C++ Applications — HN submission

Tue, 23 Nov 2021 15:04:25 GMT

Mesh: Compacting Memory Management for C/C++ Applications

3 points; 0 discussion replies on HN. Paper and source history. A submission is not an endorsement.

Mesh: Compacting Memory Management for C/C++ Applications — HN submission

Fri, 04 Jun 2021 21:03:12 GMT

Mesh: Compacting Memory Managementfor C/C++ Applications

3 points; 0 discussion replies on HN. Paper and source history. A submission is not an endorsement.

Mesh: Compacting Memory Management for C/C++ Applications — mentioned by moonchild

Sun, 02 May 2021 08:31:12 GMT

Actually...https://arxiv.org/pdf/1902.04738.pdf On a more serious note, most c programs I see don't do very much of that, preferring to allocate fixed-size buffers on the stack. Additionally, most GC'd languages that aren't java have crappy GCs, and those GC'd languages that are java lack value types. This harms spatial locality quite a bit, and compaction can't fully compensate for that. They are working on adding value types to the jvm, though; it will be very interesting to see how performance changes. (I expect not very much in practice—those projects for which performance was important…

Paper and discussion history. A mention is not an endorsement.

Mesh: Compacting Memory Management for C/C++ Applications — mentioned by vanderZwan

Wed, 22 May 2019 08:30:19 GMT

Looks like he reinvented shuffle vectors on his own. I think a lot of people have over the years, but crazy enough nobody bothered to publish it until February this year! Maybe it felt too intuitive? [0] https://observablehq.com/@jobleonard/shuffle-vectors [1] https://arxiv.org/abs/1902.04738

Paper and discussion history. A mention is not an endorsement.

Mesh: Compacting Memory Management for C/C++ Applications — mentioned by sanxiyn

Thu, 09 May 2019 09:05:26 GMT

Fragmentation is solvable. Mesh can compact C programs using malloc/free without any source changes. https://arxiv.org/abs/1902.04738

Paper and discussion history. A mention is not an endorsement.

Mesh: Compacting Memory Management for C/C++ Applications — HN submission

Sun, 17 Feb 2019 05:12:54 GMT

Mesh: Compacting Memory Management for C/C++ Applications

167 points; 36 discussion replies on HN. Paper and source history. A submission is not an endorsement.