Searched hist:"21 fae96123f71665f4325f1f69b5b99a24af6c4b" (Results 1 – 2 of 2) sorted by relevance
| /freebsd/sys/vm/ |
| H A D | vm_init.c | diff 21fae96123f71665f4325f1f69b5b99a24af6c4b Wed Oct 14 04:10:07 CEST 2015 Jeff Roberson <jeff@FreeBSD.org> Parallelize the buffer cache and rewrite getnewbuf(). This results in a
8x performance improvement in a micro benchmark on a 4 socket machine.
- Get buffer headers from a per-cpu uma cache that sits in from of the
free queue.
- Use a per-cpu quantum cache in vmem to eliminate contention for kva.
- Use multiple clean queues according to buffer cache size to eliminate
clean queue lock contention.
- Introduce a bufspace daemon that attempts to prevent getnewbuf() callers
from blocking or doing direct recycling.
- Close some bufspace allocation races that could lead to endless
recycling.
- Further the transition to a more modern style of small functions grouped
by prefix in order to improve growing complexity.
Sponsored by: EMC / Isilon
Reviewed by: kib
Tested by: pho
|
| /freebsd/sys/kern/ |
| H A D | vfs_bio.c | diff 21fae96123f71665f4325f1f69b5b99a24af6c4b Wed Oct 14 04:10:07 CEST 2015 Jeff Roberson <jeff@FreeBSD.org> Parallelize the buffer cache and rewrite getnewbuf(). This results in a
8x performance improvement in a micro benchmark on a 4 socket machine.
- Get buffer headers from a per-cpu uma cache that sits in from of the
free queue.
- Use a per-cpu quantum cache in vmem to eliminate contention for kva.
- Use multiple clean queues according to buffer cache size to eliminate
clean queue lock contention.
- Introduce a bufspace daemon that attempts to prevent getnewbuf() callers
from blocking or doing direct recycling.
- Close some bufspace allocation races that could lead to endless
recycling.
- Further the transition to a more modern style of small functions grouped
by prefix in order to improve growing complexity.
Sponsored by: EMC / Isilon
Reviewed by: kib
Tested by: pho
|