On 14/01/2008, Daniel O'Connor <doconnor_at_gsoft.com.au> wrote: > On Mon, 14 Jan 2008, Igor Mozolevsky wrote: > > On 13/01/2008, Peter Jeremy <peterjeremy_at_optushome.com.au> wrote: > > > IMHO, no. Virtually all similar FreeBSD information is exported > > > via sysctl and this sort of information fits neatly into the > > > existing MIB tree as either dev.cpu.N.features or hw.cpu.features > > > > /dev/sndstat? > > A single handy counter example to the many many that are sysctls :) > > > If it's in /dev you can do neat tricks like ioctl-ing queries (like > > ioctl(/dev/cpuinfo, CINFOCTL_HAS_FEATURES, CINFO_SSE3|CINFO_SSSE3)) > > instead of having *every* app parse the result of a sysctl; most of > > the time you'd only want to check for specific feature , it's much > > easier to do an ioctl that returns a boolean. > > Except you can't do that from a shell script. > (eg wrapper script to run optimised binaries) cat /dev/cpuinfo and parse away! IgorReceived on Mon Jan 14 2008 - 01:38:31 UTC
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