Skip to main content

Solving a laptop performance problem

My main vice these days is Warcraft 3. (Not WoW -- I don't have nearly enough time for that.) It's been frustrating, though, since it could get extremely choppy. Maybe 5 fps choppy. Dropping all the settings to lowest didn't help, which really puzzled me since although a GeForce fx Go5200 isn't the most powerful 3d card around by a long shot, a 2.8 GHz p4 should have been able to render this stuff in software. I didn't do anything about this at first but I got good enough at the game that I started losing games because of the choppiness. So a couple nights ago I went on a killing spree with Task Manager to see if it was a background task causing the problem. I didn't see any likely candidates, and sure enough, it didn't help. I did notice my Insprion 5160 runs rather hot, though, and I wondered if it could be underclocking the CPU and/or GPU to cool off. This program verified this theory: my cpu clock oscillated every few seconds between 2.8 and 1.8 GHz. Now, even the lowest setting of 1.8 GHz is plenty for wc3. Apparently Blizzard did something dumb (a friend who knows more about windows programming than I suggested it might actually be a win32 API problem) and sets its timer based on the maximum clockspeed, and doesn't adjust when it drops down. Turning speedstep off in my BIOS, which sets the cpu clock to its lowest setting permanently, fixed my warcraft problem. I'd be pretty ticked if I still had to run, say, Eclipse, but 1.8 GHz is also plenty for Emacs. So I'm happy for now.

Comments

Anonymous said…
SpeedswitchXP at the web page you refer to gives some control over speedstep modes at runtime. Maybe it will do instead of disabling speedstep totally?

If enabled it will also draw a nice diagram of processor speed vs load.
12:06 AM
Jonathan Ellis said…
I'm happy with 1.8 GHz... it's much cooler this way. I can actually keep it on my lap most of the time. :)

I think I saved $100 getting the p4 model instead of a Pentium M. Wasn't worth it.
12:20 PM
Post a Comment

Popular posts from this blog

PyCon Python IDE review

I presented an IDE review at PyCon last Friday. It was basically a re-review of what I thought were the 3 most promising IDEs from the Utah Python User Group IDE review , to which I added SPE, which was by far the most popular of the ones we left out that time. The versions reviewed are: PyDev 1.0.2 SPE 0.8.2.a Komodo 3.5.2 Wing IDE 2.1 beta 1 I'd intended to base my presentation around a comparison of writing a smallish program in each of the IDEs, but the more I tried to make this not suck, the more I realized it was a losing proposition. Instead, I decided to try to focus on the features in each that most set them apart from the others (both positive and negative); this seemed more likely be useful. (I did a new feature matrix for this review, which is included after my comments. The slides I used are also up, at http://utahpython.org/jellis/pycon-ides.pdf , but aren't very useful absent video of the presentation itself. Hence this post.) PyDev PyDev has g...
43 comments
Read more

Why PHP sucks

(July 8 2005) Apparently I got linked by some PHP sites, and while there were a few well-reasoned comments here I mostly just got people who only knew PHP reacting like I told them their firstborn was ugly. These people tended to give variants on one or more themes: All environments have warts, so PHP is no worse than anything else in this respect I can work around PHP's problems, ergo they are not really problems You aren't experienced enough in PHP to judge it yet As to the first, it is true that PHP is not alone in having warts. However, the lack of qualitative difference does not mean that the quantitative difference is insignificant. Similarly, problems can be worked around, but languages/environments designed by people with more foresight and, to put it bluntly, clue, simply don't make the kind of really boneheaded architecture mistakes that you can't help but run into on a daily baisis in PHP. Finally, as I noted in my original introduction, with PHP, ...
30 comments
Read more

A review of 6 Python IDEs

(March 2006: you may also be interested the updated review I did for PyCon -- http://spyced.blogspot.com/2006/02/pycon-python-ide-review.html .) For September's meeting, the Utah Python User Group hosted an IDE shootout. 5 presenters reviewed 6 IDEs: PyDev 0.9.8.1 Eric3 3.7.1 Boa Constructor 0.4.4 BlackAdder 1.1 Komodo 3.1 Wing IDE 2.0.3 (The windows version was tested for all but Eric3, which was tested on Linux. Eric3 is based on Qt, which basically means you can't run it on Windows unless you've shelled out $$$ for a commerical Qt license, since there is no GPL version of Qt for Windows. Yes, there's Qt Free , but that's not exactly production-ready software.) Perhaps the most notable IDEs not included are SPE and DrPython. Alas, nobody had time to review these, but if you're looking for a free IDE perhaps you should include these in your search, because PyDev was the only one of the 3 free ones that we'd consider using. And if you aren...
36 comments
Read more