Guide The Memory Eater

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About This Game. Memory Eater is a 2d platformer with run\jump\shoot gameplay and some puzzle elements. To progress, on every level you.
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I just tried it on Linux 3. For instance, they are only used on explicit request, and only if the system has been configured to allow them. Also, the 4 kiB page still remains the granularity at which memory may be mapped. That's why I don't think that mentioning huge pages adds anything to the answer. AlecTeal Yes, it does. That's why, at least on linux, it's more likely that a process that consumes too much memory is shot by the out-of-memory-killer than that one of it's malloc calls returns null. That's clearly the downside of this approach to memory management.

However, it is already the existence of copy-on-write-mappings think dynamic libraries and fork that make it impossible for the kernel to know how much memory will actually be needed. So, if it didn't overcommit memory, you would run out of mapable memory long before you were actually using all the physical memory.

BillBarth To the hardware there is no difference between what you would call a page fault and a segfault.

Confessions of a Memory Eater - By Pagan Kennedy - Books - Review - The New York Times

The hardware only sees an access that violates the access restrictions laid down in the page tables, and signals that condition to the kernel via a segmentation fault. It's only the software side that then decides whether the segmentation fault should be handled by supplying a page updating the page tables , or whether a SIGSEGV signal should be delivered to the process.

The messy design using global variables, and growing by 1k instead of 4k pages, is unchanged. Yes you are right, it was the reason, not sure about technical background though, but it makes sense. It's weird though, that it allows me to allocate more memory than I can actually use. I do think on OS level the memory is only really used when you write into it, which makes sense considering the OS doesnt keep tabs on all the memory you theorethically have, but only on that which you actually use. Petr mind If I mark my answer as community wiki and you edit in your code for future user readability?

Petr It's not weird at all. That's how memory management on today's OSes works. A major trait of processes is that they have distinct address spaces, which is accomplished by providing each of them a virtual address space. Andrew Tanenbaum has written some great books about OSes.

If you're interested, read them! I wouldn't use wording "obvious memory leak" I don't believe that overcommit or this technology of "memory copy on write" was invented to deal with memory leaks at all. Bathsheba Bathsheba k 28 28 gold badges silver badges bronze badges. Are you sure? I think if his allocation amount reaches the max of virtual memory available the malloc would fail, no matter what. How would malloc know that nobody is going to use the memory??


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It can't, so it must call sbrk or whatever the equivalent in his OS is. Schneider Oct 20 '15 at I'm pretty sure. It's trivial to test although not easy for me right now: I'm on a train.

The Memory Eater Quest 14/15

Bathsheba Would writing one byte to each page also suffice? The anthology was pitched to select publishers with positive feedback, but ultimately, I decided to take advantage of the evolving book publishing landscape and retain control over the book publication and distribution by raising the funds to self-publish.

Today marks the launch of the Kickstarter.

Please visit The Memory Eater fundraising campaign right here to support the project. The page includes a project introduction video, story and art samples and links to several contributor web sites. Rewards run the gamut from written acknowledgement in the anthology, to free books, to bookmarks and T-shirts, to custom created, artist-signed The Memory Eater artwork on canvas.

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Can I Run Memory Eater?

Share Embed. Add to Cart. To progress, on every level you must find and collect a certain number of memories. Mind monsters will try to stop you, fight them or run.

Keep an eye on the map and switch to your flying bear to explore what lies ahead. Memory Eater is a game about creatures eating people's memories. For many years they've been living in people's houses, hiding in boxes, empty cans and other debris. At night they get out of their hideouts and sneak into the brain of a sleeping person, where every time they have a perilous journey for food - memories.

The main character of the game is one of those monsters. His tribe has long been settled in the house of the man, and found a hideout in the old chest in his attic. Every night some monsters were out in search for food and then brought the prey back to the hideout, but once they didn't come back.