Andre Oppermann writes: > Andrew Gallatin wrote: > > > > Andre Oppermann [EMAIL PROTECTED] wrote: > > > andre 2005-11-02 16:20:36 UTC > > > > > > FreeBSD src repository > > > > > > Modified files: > > > sys/kern kern_mbuf.c uipc_mbuf.c > > > sys/sys mbuf.h param.h > > > Log: > > > Mandatory mbuf cluster reference counting and groundwork for UMA > > > based jumbo 9k and jumbo 16k cluster support. > > > > Cool. Are the jumbo clusters physically contiguous? > > Yes. Jumbo allocation API is coming soon.
Wow! That sounds great. You'll be able to replace the ad-hoc per-driver private jumbo pools that exist in several drivers. But has UMA gotten good at allocating contiguous memory, or will jumbo allocations be really expensive? Can/will these large buffers be used for sosend()? Have you thought about also adding page-sized clusters? It would save drivers which are able to chain several buffers together several allocations per jumbo frame. And it might be better suited for use in sosend(), since I would imagine that page-sized clusters would be cheap for UMA to allocate, and they would save one allocation per page for large sends. Drew _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/cvs-all To unsubscribe, send any mail to "[EMAIL PROTECTED]"
