On Wed, Apr 6, 2011 at 10:09 PM, Matthew Dillon <dil...@apollo.backplane.com> wrote: > There will be a ton of features in this release, including major > compiler toolchain updates, better acpi, better swapcache, PF upgrade, > HAMMER live dedup, and many many other goodies.
Specifically: * gcc 4.4.5 is now the default compiler (replacing gcc 4.1) * binutils 2.21 is now the default binutils (replacing binutils 2.17) * PF is synced with the version in OpenBSD 4.4 * HAMMER now support offline dedup & live dedup * The MP lock is a token now * __The global tokens no longer take the MP lock! :D__ * HAMMER improved write performance * Caching for more kernel slabs and thread structures/thread stacks (faster fork() / thread creation) * Support up to 63 CPUs on x86_64 systems * New FIFO LWKT token contention algorithm (fair waiting) * MONITOR/MWAIT support during LWKT token contention (saves _a lot_ of power) * New ACPI work and PCI interrupt routing * MP lock has been removed from tmpfs, * Google Code-In submissions: Many zalloc users have been converted to objcaches * __Lots__ of bugfixes I'd love to see benchmarks comparing 2.10 to 2.8 and 2.6; we've come very far in the ~year since 2.6. -- vs
