Quote:
Originally Posted by Matt Arnold
Yes, this could count as "understand enough about your machine" 
Although in general, it also depends on how much else you run on your machine at the same time. For example, if you're not running anything else, then I would expect that a 4 core/hyperthreaded box should still run ever so slightly faster with 8 threads than with 4. However, if you're running a bunch of other stuff too, then the 8 threads can slow it down enough to cause issues.
So yes, if you don't feel that threading helps much, then try half the recommended value. |
it slows it down enough that it's obvious to the eye, even slower than 1 thread as a comparison above. sim a year and it's painfully obvious. (8threads, recommended, on a 4core chip with multithreading(tm) cpu enabled)
i wouldn't say anythign, otherwise. it's like the trade deadline or end of MiL seasons everyday or worse. (ie whatever most intesnive 'days' are) i knew to avoid it... it took a week or so to realize my cpu's multithreading was erroneously and magically re-enbled. thought my league was just getting 'too big' before i noticed.
when i run 8 threads on 4-cores (with mutlithreading turned off in bios) -- it does work fine (i keep it at 4, fwiw).. no faster or slower that i can tell without a stopwatch. this cpu feature is defaulted on and most will not turn it off. just not sure if all pc's with this cpu-feature experience the problem. few things benefit, numerous things are negatively impacted.
(cpu feature, not ootp threading -- ootp threading is all a good thing)
there were quite a few people intially complaining about the slow-down. if like me, it was this cpu feature... this crappy, crappy, useless feature, lol.... (it does actually help with video encoding, but runs hot as he!! even with a water-cooling.)