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The article does not mention bcachefs as a future alternative: http://bcachefs.org/ http://bcachefs.org/

by Mic92 9y ago

sfoskett 9y ago
I had never heard of bcachefs. Thanks for the pointer!
jeremyw 9y ago
HN: Please consider subscribing to make this alternative real. https://www.patreon.com/bcachefs https://www.patreon.com/bcachefs
specto 9y ago
We can all hope...
reacharavindh 9y ago
I’m certainly an excited audience for modern alternative file system options. Quick look at the homepage of bcachefs reads - “Not quite finished - it's safe to enable, but there's some work left related to copy GC before we can enable free space accounting based on compressed size: right now, enabling compression won't actually let you store any more data in your filesystem than if the data was uncompressed.” What is the point of having compression enabled if you can’t store more data than you could if it was uncompressed? Shouldn’t they just say “compression mechanism works but not useful yet. as of now it is just extra overhead”..
- wtallis 9y ago
  Compression can give you a net performance improvement on slow disks if the CPU time required to compress is less than the time saved by writing less data to the disk.
std_throwaway 9y ago
I see they use another approach to file systems. They sound very confident. A bit too confident to my taste. Are they experienced enough in building file systems that they won't run into huge problems arising when it actually goes into the dirty details?
- wtallis 9y ago
  The developer of bcachefs already has the experience of creating bcache, a general-purpose block-level caching system that is optimized for the characteristics of flash-based SSDs as the cache devices. The original bcache essentially serves as the proof of concept and practice implementation for all the lower-level portions of bcachefs (not that it was planned that way; they just realized while working on bcache they had implemented most of a filesystem).

The article does not mention bcachefs as a future alternative: http://bcachefs.org/ http://bcachefs.org/

by Mic92 9y ago

The article does not mention bcachefs as a future alternative: http://bcachefs.org/ http://bcachefs.org/

sfoskett 9y ago

I had never heard of bcachefs. Thanks for the pointer!

jeremyw 9y ago

HN: Please consider subscribing to make this alternative real. https://www.patreon.com/bcachefs https://www.patreon.com/bcachefs

specto 9y ago

We can all hope...

reacharavindh 9y ago

I’m certainly an excited audience for modern alternative file system options. Quick look at the homepage of bcachefs reads - “Not quite finished - it's safe to enable, but there's some work left related to copy GC before we can enable free space accounting based on compressed size: right now, enabling compression won't actually let you store any more data in your filesystem than if the data was uncompressed.” What is the point of having compression enabled if you can’t store more data than you could if it was uncompressed? Shouldn’t they just say “compression mechanism works but not useful yet. as of now it is just extra overhead”..

wtallis 9y ago
Compression can give you a net performance improvement on slow disks if the CPU time required to compress is less than the time saved by writing less data to the disk.

std_throwaway 9y ago

I see they use another approach to file systems. They sound very confident. A bit too confident to my taste. Are they experienced enough in building file systems that they won't run into huge problems arising when it actually goes into the dirty details?

wtallis 9y ago
The developer of bcachefs already has the experience of creating bcache, a general-purpose block-level caching system that is optimized for the characteristics of flash-based SSDs as the cache devices. The original bcache essentially serves as the proof of concept and practice implementation for all the lower-level portions of bcachefs (not that it was planned that way; they just realized while working on bcache they had implemented most of a filesystem).