hi , : because from the kernel , we will see two cpu , so we must take care of the smp confilct coding . i got a big mess about the smp coding . but luckly , i resolve it . ************the original mail************ original recv: original sendor£ºsarnold@wirex.com >On Tue, Oct 29, 2002 at 03:02:09PM +0800, ??? wrote: >> how about the hyperthreading tech ? , i am still use the p2-550. > >Sorry; only p4-based chips can do hyperthreading, and not all p4s have >it enabled. Check www.intel.com for details on the p4 family of cpus. > >Note that there is some level of argument whether hyperthreading is >actually a gain -- it is similar to sharing a single cache among two >cpus -- cutting in half the amount of cache available to each pretend >processor. > >It is easy to envision work loads that might benefit greatly from >hyperthreading. It is also possible to envision work loads that might >not benefit as much as one would hope. I will be interested to see >results from common operations such as kernel compiles etc... (loads I >can understand; outright benchmarks are more difficult to translate into >work loads I am familiar with...) > >-- >http://sardonix.org/ >-----BEGIN PGP SIGNATURE----- >Version: GnuPG v1.0.6 (GNU/Linux) >Comment: For info see http://www.gnupg.org > >iEYEARECAAYFAj2+Q7MACgkQ+9nuM9mwoJl8SQCeJIi1hVWXOoTt3PFfjO0aD3vt >P8oAnRUrXajv6ZeHvniZpDvfZtG0Oo+/ >=8haS >-----END PGP SIGNATURE----- = = = = = = = = = = = = = = = = = = = = ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡zhusm ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡zhusm@neusoft.com ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡2002-10-29 -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
