DOOM VS Redis

Compare DOOM vs Redis and see what are their differences.

DOOM

DOOM Open Source Release (by id-Software)

Redis

Redis is an in-memory database that persists on disk. The data model is key-value, but many different kind of values are supported: Strings, Lists, Sets, Sorted Sets, Hashes, Streams, HyperLogLogs, Bitmaps. (by redis)
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DOOM Redis
91 311
12,516 64,235
2.8% 1.0%
3.6 9.7
2 months ago 1 day ago
C++ C
GNU General Public License v3.0 only GNU General Public License v3.0 or later
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

DOOM

Posts with mentions or reviews of DOOM. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2024-01-17.
  • Doom Released Under GPLv2
    4 projects | news.ycombinator.com | 17 Jan 2024
    commercially exploit or use for any commercial purpose."

    [1] https://github.com/id-Software/DOOM/commit/4eb368a960647c8cc...

    4 projects | news.ycombinator.com | 17 Jan 2024
    This Github repo was previously released with this license:

    https://github.com/id-Software/DOOM/blob/77735c3ff0772609e9c...

    4 projects | news.ycombinator.com | 17 Jan 2024
  • GTA 5 source code leaks online
    3 projects | news.ycombinator.com | 25 Dec 2023
    The original Doom had third-party audio playback routines, so the source came with a rewritten sound server: https://github.com/id-Software/DOOM/tree/master/sndserv

        The bad news:  this code only compiles and runs on linux.  We couldn't
  • Software Disenchantment
    5 projects | news.ycombinator.com | 23 Oct 2023
    Here's a repo for you with no test coverage and no auto-generated DI. They using unsafe pointers all over the place, too!

    https://github.com/id-Software/DOOM

    Shall I prepare the postage for the letter in which you'll call John Carmack an MBA? Should we send another to Chris Sawyer? I heard he didn't even write a formal design doc for Roller Coaster Tycoon!

  • Ask HN: Good practices for my first C project
    3 projects | news.ycombinator.com | 18 Oct 2023
    cURL is one of the most used C libs and is an example of good quality C code. If you follow the style used there, see e.g. https://github.com/curl/curl/blob/master/lib/dynhds.h (and associated dynhds.c) you will be good.

    Looking at the source of some of the old game-engines from the era that have since been released as open-source can also be helpful, like https://github.com/id-Software/DOOM.

    In both cases notice how simple and elegant a lot of the code is. There is already enough complexity inherent in the problem they are solving, and that is where the focus should be.

    Any IDE with a working language server to make it easy to jump around and refactor should work fine. Limitations might be due to the C language itself?

    Error handling on such a fixed platform does not need to be super-advanced. You should always be within the confines of the system so there shouldn't be much that can go wrong. If stuff goes wrong anyway just being able call a function Fatal("FooBar failed with code 34") when unexpected stuff happens and have it log somewhere to be able to dig around should be enough. You never need to be able to recover and retry.

    Make sure to use https://clang.llvm.org/docs/AddressSanitizer.html or a similar tool when developing outside of the PSOne.

    That said, consider statically allocating global buffers for most stuff and avoid using the heap for most stuff.

    Good luck working within the confines of the PSOne! Many hackers have pulled the hair from their head on that platform ;)

  • Ask HN: Where do I find good code to read?
    22 projects | news.ycombinator.com | 24 Aug 2023
  • Running Stable Diffusion in 260MB of RAM
    3 projects | news.ycombinator.com | 20 Jul 2023
    Probably more easily than you'd think. DOOM is open source[1], and as GP alludes, is probably the most frequently ported game in existence, so its source code almost certainly appears multiple times in GPT-4's training set, likely alongside multiple annotated explanations.

    [1] https://github.com/id-Software/DOOM

  • Some were meant for C [pdf]
    2 projects | news.ycombinator.com | 21 Jun 2023
    I'd define an arena as the pattern where the arena itself owns N objects. So you free the arena to free all objects.

    My first job was at EA working on console games (PS2, GameCube, XBox, no OS or virtual memory on any of them), and while at the time I was too junior to touch the memory allocators themselves, we were definitely not malloc-ing and freeing all the time.

    It was more like you load data for the level in one stage, which creates a ton of data structures, and then you enter a loop to draw every frame quickly. There were many global variables.

    ---

    Wikipedia calls it a region, zone, arena, area, or memory context, and that seems about right:

    https://en.wikipedia.org/wiki/Region-based_memory_management

    It describes history from 1967 (before C was invented!) and has some good examples from Apache ("pools") and Postgres ("memory contexts").

    I also just looked at these codebases:

    https://github.com/mit-pdos/xv6-public (based on code from the 70's)

    https://github.com/id-Software/DOOM (1997)

    I looked at allocproc() in xv6, and gives you an object from a fixed global array. A lot of C code in the 80's and 90's was essentially "kernel code" in that it didn't have an OS underneath it. Embedded systems didn't run on full-fledges OSes.

    DOOM tends to use a lot of what I would call "pools" -- arrays of objects of a fixed size, and that's basically what I remember from EA.

    Though in g_game.c, there is definitely an arena of size 0x20000 called "demobuffer". It's used with a bump allocator.

    ---

    So I'd say

    - malloc / free of individual objects was NEVER what C code looked like (aside from toy code in college)

    - arena allocators were used, but global vars and pools are also very common.

    - arenas are more or less wash for memory safety. they help you in some ways, but hurt you in others.

    The reason C programmers don't malloc/free all the time is for speed, not memory safety. Arenas are still unsafe.

    When you free an arena, you have no guarantee there's nothing that points to it anymore.

    Also, something that shouldn't be underestimated is that arena allocators break tools like ASAN, which use the malloc() free() interface. This was underscored to me by writing a garbage collector -- the custom allocator "broke" ASAN, and that was actually a problem:

    https://www.oilshell.org/blog/2023/01/garbage-collector.html

    If you want memory safety in your C code, you should be using ASAN (dynamically instrumented allocators) and good test coverage. Arenas don't help -- they can actually hurt. An arena is a trivial idea -- the problem is more if that usage pattern actually matches your application, and apps evolve over time.

  • Is it possible to see the code of 90s computer games?
    10 projects | /r/learnprogramming | 2 Jun 2023
    Doom might be the best one, they released their code i don't remember when. It's in github if you want to check it out: link

Redis

Posts with mentions or reviews of Redis. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2024-03-27.

What are some alternatives?

When comparing DOOM and Redis you can also consider the following projects:

Redis - 🚀 A robust, performance-focused, and full-featured Redis client for Node.js.

LevelDB - LevelDB is a fast key-value storage library written at Google that provides an ordered mapping from string keys to string values.

RabbitMQ - Open source RabbitMQ: core server and tier 1 (built-in) plugins

Polly - Polly is a .NET resilience and transient-fault-handling library that allows developers to express policies such as Retry, Circuit Breaker, Timeout, Bulkhead Isolation, and Fallback in a fluent and thread-safe manner. From version 6.0.1, Polly targets .NET Standard 1.1 and 2.0+.

celery - Distributed Task Queue (development branch)

Riak - Riak is a decentralized datastore from Basho Technologies.

cockroach - CockroachDB - the open source, cloud-native distributed SQL database.

Apache HBase - Apache HBase

RedisJSON - RedisJSON - a JSON data type for Redis

ArangoDB - 🥑 ArangoDB is a native multi-model database with flexible data models for documents, graphs, and key-values. Build high performance applications using a convenient SQL-like query language or JavaScript extensions.

CouchDB - Seamless multi-master syncing database with an intuitive HTTP/JSON API, designed for reliability

Apache Arrow - Apache Arrow is a multi-language toolbox for accelerated data interchange and in-memory processing