On Monday 14 March 2005 21:31, John R Pierce wrote: > [EMAIL PROTECTED] wrote: > > Hi guys, > > > > Is there a consensus as to what version runs best on Pentium M? My > > recent benchmarks with 23.8 and 24.6 are roughly the same, with 24.6 > > being slightly faster with some FFT sizes and 23.8 being slightly > > faster with other sizes.
Sounds like it doesn't matter ... 1-2% variation is quite normal even if you re-benchmark the same machine! > > > > Related question: supposedly the Pentium M is much cooler than > > previous Intel CPUs even when running under load. Is the difference > > significant enough that I can run Prime95 full-time when my machine is > > in the docking station? I had originally planned only on running it > > for experimental purposes, but if the hardware can handle it, I will > > let it go full time since my machine spends most of it's time in the > > dock. FWIW, this is a HP nc6000 1.7GHz machine. > > IMHO, any computer that can't run at full speed 24/7 is badly engineered. > that would be like a car that couldn't sustain freeway speeds without > overheating... Umm, in my experience overheating is much more of a problem in congested traffic - at freeway/motorway speeds airflow does a good job of removing the much greater amount of heat which is produced. For instance note that Formula 1 racing cars will overheat terminally in less than one minute even if idling without airflow through the radiators. Anyway not everyone needs a car which will run all day at 70mph. Lots of people use their cars only for kiddies "taxi service", nipping to local shops etc. and never even get the oil warm. Similarly lots of notebook computer users simply don't care if their system won't sustain full speed for more than the few seconds they're prepared to wait on the odd occasions when they actually need to do some computing. > > that said, many laptops have cooling problems brought upon by their compact > size. Yes. Not a problem if most of the computer is almost always in standby. The alternative is to make the system heavier, with extensive use of metal case components etc, also increasing the price. Most suckers, sorry consumers, will happily vote for crippled systems with their wallets, if both case and price tag are smaller and lighter. > > If this one seems to work, let it rip. its got a warranty, doesn't it? no > software should violate any such warranty (I just can see a computer > manufacturer trying to claim their computers weren't designed to actually > compute, heh). Basically in my experience the problem is that a notebook system running Prime95/mprime 24x7 is very likely to age much faster than it's supposed to do. Especially items like batteries - probably excluded from the warranty as a "wear and tear" item - which are likely to die in 1-2 years if not charge cycled at room temperature at regular intervals, but will probably be running at well over 40C in a system left running Prime95 24x7. If you have the smart idea of removing the battery pack whilst running from utility mains supply, don't forget the internal standby battery which isn't designed to be removed or easily replaced. > no > software should violate any such warranty (I just can see a computer > manufacturer trying to claim their computers weren't designed to actually > compute, heh). I can see your point, but car warranties specifically exclude racing, endurance testing etc. - if you don't believe me, buy a new car, drive it flat out round a race track (except for oil changes etc. as specified) until it breaks - probably within 2 weeks / 20,000 miles - then try to claim on the warranty. In normal use very few drivers will run the engine above 75% of the red lined max RPM and/or at max throttle for more than a few seconds at a time; anyone who keeps the throttle floored for extended periods on public roads is going to attract unwanted attention to themselves, quite apart from stressing the mechanics. I do think that computer manufacturers should point out to their customers that some of their products (mostly notebook/laptop systems, but desktop systems are not immune) are designed for light intermittent use only. Running Prime95/mprime on a notebook/laptop computer which is already knackered is probably a Good Way of extracting the last dregs of usefulness from it before consigning it to the Great Recycling Centre in the Sky (or, more likely, the local landfill). Regards Brian Beesley _______________________________________________ Prime mailing list [email protected] http://hogranch.com/mailman/listinfo/prime
