Linux

10179 readers

603 users here now

A community for everything relating to the GNU/Linux operating system (except the memes!)

Also, check out:

Original icon base courtesy of lewing@isc.tamu.edu and The GIMP

founded 2 years ago

MODERATORS

Ategon@programming.dev

anzo@programming.dev

dwraf_of_ignorance@programming.dev

Linux 6.19 Slated To Land "mm/cid" Rewrite That Has Very Positive Performance Potential (www.phoronix.com)

submitted 7 hours ago by cm0002@no.lastname.nz to c/linux@programming.dev

0 comments fedilink hide all child comments

A set of Linux kernel patches posted back in October for rewriting the kernel's memory-mapped concurrency ID code for some nice performance wins looks like it will land for Linux 6.19. This is the code that prominent Intel engineer Thomas Gleixner found to yield up to an 18% improvement for the PostgreSQL database. My testing of this "mm/cid" code has also shown some nice performance wins too.

Intel Fellow Thomas Gleixner overhauled the CID management code after finding the existing complex code introduced significant overhead into the kernel scheduler's hot code paths. This new code is simpler and lower-overhead.

no comments (yet)

sorted by: hot top controversial new old

there doesn't seem to be anything here