Re: a proposed callout API



On Tue, Nov 14, 2006 at 04:11:20PM +0100, Andre Oppermann wrote:
...
It's important to know that any random memory accesses on modern
CPUs are really expensive because of cache misses. That's why
Judy tries beat RB tries by an order of a magnitude these days.

you mean this stuff ?

http://docs.hp.com/en/B6841-90001/ch02s01.html
http://judy.sourceforge.net/

cheers
luigi
_______________________________________________
freebsd-arch@xxxxxxxxxxx mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-arch
To unsubscribe, send any mail to "freebsd-arch-unsubscribe@xxxxxxxxxxx"



Relevant Pages

  • Re: a proposed callout API
    ... CPUs are really expensive because of cache misses. ... Judy tries beat RB tries by an order of a magnitude these days. ...
    (freebsd-arch)
  • Re: a proposed callout API
    ... In message, Andre Oppermann writes: ... CPUs are really expensive because of cache misses. ... Judy tries beat RB tries by an order of a magnitude these days. ...
    (freebsd-arch)
  • Re: a proposed callout API
    ... CPUs are really expensive because of cache misses. ... Judy tries beat RB tries by an order of a magnitude these days. ... sorting requirement we have for the short/likely callouts is ...
    (freebsd-arch)
  • Re: New libc malloc patch
    ... > someone steps up to change the way mmap and brk interact within the ... > be allocated with brk. ... we already have systems running with enough CPUs that this is an issue. ... > address space and the cache: the mapping of logical pages (what you ...
    (freebsd-current)
  • Re: Purchasing the correct hardware: dual-core intel? Big cache?
    ... there's not enough IO to stress the disk subsystem. ... with more CPUs by getting true dual-core pentiums. ... The question this all pivots on is will 8M of cache be a significant ... We're looking hard at getting either Intel dual-core procs, ...
    (freebsd-questions)