31–40 of 187 posts
Has everyone forgotten that Unix is the common ancestor of Linux and every other Unixlike? I’m seeing an uptick of people writing nonsensical comments like “this was written for Linux (or Mac OS X, which implements POSIX and is therefore really Linux in drag)”.
Well, a pretty big part of the point of Linux is that it's not a Unix-descendant, just a Unix-clone.
> I was taught that to allocate memory was to summon death itself to ruin your performance. A single call to malloc() during any frame is likely to render your game unplayable. Any sort of allocations that needed to happen with any regularity required writing a custom, purpose-built allocator, usually either a fixed-size block allocator using a freelist, or a greedy allocator freed after the level ended. Where do peo…
Strong agree. I recently wrote a semi-popular blog post about this. https://www.forrestthewoods.com/blog/benchmarking-malloc-wit... It's interesting that LLVM is suffering so horrifically using default malloc. I really wish the author did a deeper investigation into why exactly.
Benchmarking Malloc with Doom 3 - https://news.ycombinator.com/item?id=31631352 - June 2022 (30 comments)
Not that it helps here, but Microsoft never considered the MSVCRT that ships with Windows to be public API. This is not the "Windows allocator", this is the (very) old MSVC runtime library's allocator. Of course that doesn't keep anyone from using this library because it's present on any Windows system, unlike the newer MSVC versions' runtime library. Using the allocator from a later MSVC's runtime library would prov…
Seeing someone refer to any piece of software technology as a "trash fire" makes it harder for me to view them as credible. It's unnecessarily divisive and insulting, and it means it's unlikely they will have any appreciation of the tradeoffs present during initial design and implementation.
Not that it helps here, but Microsoft never considered the MSVCRT that ships with Windows to be public API. This is not the "Windows allocator", this is the (very) old MSVC runtime library's allocator. Of course that doesn't keep anyone from using this library because it's present on any Windows system, unlike the newer MSVC versions' runtime library. Using the allocator from a later MSVC's runtime library would prov…
I wonder how much of this is the development culture at MS. https://www.theregister.com/2022/05/10/jeffrey_snover_said_m... (“When I was doing the prototype for what became PowerShell, a friend cautioned me saying that was the sort of thing that got people fired.”) In that environment I can imagine nobody wants to be on the hook for messing with something fundamental like malloc(). The complete trash fire that is O36…
I think that PowerShell story was how old MS worked, back in the days of stack ranking, hatred of Linux and the Longhorn fiasco. things inside the company are a lot more functional now. I saw internal politics drama at my first position, but once I moved everything was chill, and experimentation and contributing across team boundaries was actively encouraged and rewarded.
I suspect Office suffers from a ton of technical debt, along with being architecturally amorphous and dating from a pre-cloud era. as for Windows, the amount of breakage I see in the betas suggests they're not afraid of making deep changes, it's probably that MSVCRT is a living fossil and has to support old programs monkeypatching the guts of malloc or something.
> I was taught that to allocate memory was to summon death itself to ruin your performance. A single call to malloc() during any frame is likely to render your game unplayable. Any sort of allocations that needed to happen with any regularity required writing a custom, purpose-built allocator, usually either a fixed-size block allocator using a freelist, or a greedy allocator freed after the level ended. Where do peo…
If this person was taught game dev any time before about 2005, that would have still been relevant knowledge. Doing a large malloc or causing paging could have slaughtered game execution, especially during streaming. >If you want a good malloc impl just use tcmalloc or jemalloc and be done with it This wasn't applicable until relatively recently.
... it still does ? I had a case a year or so ago (on then-latest Linux / GCC / etc.) where a very sporadic allocation of 40-something bytes (very exactly, inserting a couple of int64 in an unordered_map at the wrong time) in a real-time thread was enough to go from "ok" to "unuseable"
I wonder how much of this is the development culture at MS. https://www.theregister.com/2022/05/10/jeffrey_snover_said_m... (“When I was doing the prototype for what became PowerShell, a friend cautioned me saying that was the sort of thing that got people fired.”) In that environment I can imagine nobody wants to be on the hook for messing with something fundamental like malloc(). The complete trash fire that is O36…
You shouldn't read too much into the PowerShell story. Creating your own programming language is in most cases a frivolous vanity project. Spending company resources on your own frivolous vanity projects is the sort of thing that can get you fired.
CMD badly needed replacing. MS needed a new shell language. A functional company would connect people with a passion for X with the resources to achieve X, if X has a chance of helping the company.
Windows Terminal and WSL show how far MS has come from the PS days.
(Disclaimer: I work for MS)