Only if you are doing in-place updates. If append-only datastores are your jam, writes via mmap are Just Fine:

  $ go test -v
  === RUN   TestChunkOps
      chunk_test.go:26: Checking basic persistence and Store expansion.
      chunk_test.go:74: Checking close and reopen read-only
      chunk_test.go:106: Checking that readonly blocks write ops
      chunk_test.go:116: Checking Clear
      chunk_test.go:175: Checking interrupted write
  --- PASS: TestChunkOps (0.06s)
  === RUN   TestEncWriteSpeed
      chunk_test.go:246: Wrote 1443 MB/s
      chunk_test.go:264: Read 5525.418751 MB/s
  --- PASS: TestEncWriteSpeed (1.42s)
  === RUN   TestPlaintextWriteSpeed
      chunk_test.go:301: Wrote 1693 MB/s
      chunk_test.go:319: Read 10528.744206 MB/s
  --- PASS: TestPlaintextWriteSpeed (1.36s)
  PASS

Before it was an ACID compliant database, it was also the fastest backup solution on the market: https://bofh.bjash.com/bofh/bofh1.html

It isn't even really that -- most CLI tools are single-threaded and have a short lifespan, so your memory allocation strategy can be as simple as allocating what you need as you go along and then letting program termination clean it up.

"I came up with a step-by-step plan to achieve World Peace, and now I am on a government watchlist!"

That sort of thing is why I wrote my own DHCPv4 server that is directly integrated with the core product at $DAYJOB. 10 years ago. Having the DHCP server determine how to handle PXE requests straight from the machine database made my life so much simpler.

Just need to make sure all your computation is done in a volume with infinite surface area and zero volume. Encoding problem solved. Now then, how hyperbolic can we make the geometry of spacetime before things get too weird?

I still miss my Trackman Marble FX. Never found a trackball design as elegant and useable as it was.

https://www.lenzg.net/uploads/images/Trackman_Marble_FX.jpg

From I Palindrome I, few albums later on Apollo 18:

Son, I am able, she said, though you scare me. Watch, said I. Beloved, I said, watch me scare you though. Said she, able am I, son.

Brilliant.

Give monthly donations to your local NPR affiliate. Most of them have decently middle-of-the-road biased news, and a few have really good music programming (looking at you, KUTX).

CoW adaptive radix trees are the entire basis of $WORK's in-memory database -- we use them to store everything, then use boring old btrees to handle sorting data in arbitrary ways. A nice, performant persistent CoW radix tree would be a nice thing to have in my back pocket.