Updated Zstd Implementation Merged For Linux 6.2

[phoronix]

Phoronix: Updated Zstd Implementation Merged For Linux 6.2

It finally happened! An updated Zstd kernel implementation based on Zstd v1.5 upstream has been merged for the in-development Linux 6.2 to provide better performance and reliability for Zstd compression/decompression use-cases from compressed firmware to transparent file-system compression...

https://www.phoronix.com/news/Linux-6.2-Zstd

[cynic]

Nice! I wonder if this will have measurable impact on zstd-compressed filesystem

[Danny3]

Finally!
I've been asking for this for almost a year.
But weren't the Zstd developers saying that they plan to release another Zstd version this month and then update the kernel to that?
It's a shame they didn't do that.
Like discussed here:

https://github.com/facebook/zstd/issues/3275#issuecomment-1267381027

[milkylainen]

Finally!
I've been asking for this for almost a year.

We know you have!

[_r00t-]

Yeahh!!! Finally!!!! Linux Kernel 6.2 with updated Zstd + many optimizations for BTRFS... 2023 will be the year of BTRFS.

[rene]

thankfully t2 Linux is shipping that for ages already ;-) https://t2sde.org/packages/linux

[geearf]

Speed and compression improvements will be much appreciated!
It would be nice to get a phoronix test of those.

[Danny3]

We know you have!

LOL!
Somebody has good observation skills!

But when you have only 119 GiB of storage and not a high-end CPU, your only hope is BTRFS + Zstd compression, but that must not slow down everything down, especially when extracting / compressing files or copy / move folders with lots of things inside.

And if you can install and play a few games that would be great!

But to be able to do all that, considering the storage and CPU limitations, at least you better have the latest and the greatest improvements in BTRFS and Zstd.

BTRFS keep getting them, but Zstd did not.

Now with Linux 6.2 I'm very happy that they both have.

Too bad that 6.1 is the LTS one as 6.2 seems to be really wonderful and the one that makes pretty much everyone happy!

[Mitch]

This isnt just hand in hand with BTRFS improvements but also MGLRU. Zram and Zswap will be so much better than ever before in cases where Zstd is the compression algorithm used.

[piorunz]

Does Btrfs benefit from this also? Meaning filesystem compression uses that updated Zstd, or it has its own zstd built-in into Btrfs code?