> > actually I wanted to write that "HT as implemented on XEONs did not > help a lot for HPC workloads in the past"....
btw this is exactly the problem I am trying to point out: ".. as implemented in generation XYZ model ABC of processor DEF". that's going to be really fragile and in fact won't work even for processors you can buy today (power5 and sparc niagara for example, and depending on the workload, even on todays 16Mb cache Xeons). once your program (and many others) have such a check, then the next step will be pressure on the kernel code to "fake" the old situation when there is a processor where <vague criteria of the day> no longer holds. It's basically a road to madness :-( -- if you want to mail me at work (you don't), use arjan (at) linux.intel.com Test the interaction between Linux and your BIOS via http://www.linuxfirmwarekit.org - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
