make-bcache(8)

🎀 NAME 🎀

okay bestie, this is make-bcache(8) from the System Manager's Manual 💅 and it's how you create a cache device ✨

🧚 SYNOPSIS 🧚

make-bcache [ -U UUID ] [ -b bucket-size ] device

💖 OPTIONS 💖

• -C — the one that makes a cache 🫶
• -B — makes a backing device, but ngl the kernel side isn't implemented yet 😭 so this one's still a work in progress 🙈
• -U UUID — creates a cache device with the UUID you pick 🦋
• -b bucket-size — okay this one is lowkey the most important 🔥
  • allocation happens in terms of buckets, and cache hits get counted per bucket
  • so a smaller bucket size gives you better cache utilization, but poorer write performance 🥺
  • the bucket size is meant to match your SSD's erase blocks, which seem to be around 128k-512k for most SSDs 💜
  • it has to be a power of two, and it takes human readable units 🍓
  • if you don't set it, it defaults to 128k ✨

bestie, the bucket size is supposed to match your SSD's erase blocks, so pick wisely 💀

make-bcache(8) is the vibe, bestie 🌸 catch you later 💅✨