svn commit: r274739 - head/sys/mips/conf
Poul-Henning Kamp
phk at phk.freebsd.dk
Tue Nov 25 06:40:52 UTC 2014
--------
In message <4C2BD093-BEA2-47F9-B575-90342712E9B2 at bsdimp.com>, Warner Losh writes:
>What's the minimum specs required for get_cyclecount()?
In randomness context: That there exists a complex and unpredictable
cache-hierarchy which makes the exact number of cycles for any one
instruction pseudo-random.
Apart from x86 and zSeries no currently relevant architecture has that.
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
More information about the freebsd-arch
mailing list