Re: [dwm] [OT] frequency scaling and power consumption
On Sat, 9 May 2009 13:56:09 +0800 bill lam cbill@gmail.com wrote: Thanks all for confirmation. Since I only have a desktop, no notebook/netbook ;-( it is somehow difficult to verify the improvement. I now lock the cpu frequency to 1.1GHZ (half of the original 2.1G). Why on earth do you want to do this to a desktop computer? It will have next to no effect on your power consumption. I mean you whole system will draw the main part of the power. Anyway, put the power saving so that the CPU scales with load. This makes more sense. And turn down the brightness on your monitor, that saves power too. HTH -- Preben Randhol http://wee-free-lore.blogspot.com/
Re: [dwm] [OT] frequency scaling and power consumption
On Sat, May 09, 2009 at 01:56:09PM +0800, bill lam wrote: Personally I have noticed that locking my laptops scaling CPU to the lowest frequency does give quite a noticeable improvement to the battery life, around an extra hour on top of the usual 4~ hours and reduces the temperature enough to make the fan shut off . Just enabling on-demand scaling didn't help much as it would scale up to full frequency far to often. Even with the CPU locked in lo frequency mode it almost never lags. Thanks all for confirmation. Since I only have a desktop, no notebook/netbook ;-( it is somehow difficult to verify the improvement. I now lock the cpu frequency to 1.1GHZ (half of the original 2.1G). Less heat means less power consumption, I guess someone suggested, (I'm not sure that's why I asked for advise), that it takes more time to complete the job at lower frequency so that actual power consumption will in some case increase. It's more efficient to run at full speed and then let the CPU halt (you have to have a tickless system though) [1-4]. Decreasing power consumption of sychronous processors is a really hard problem [5-7]. But anyhow I'm not a physicist or electrical engineer. Regards, Matthias-Christian [1] http://www.codon.org.uk/~mjg59/power/good_practices.html [2] https://www.redhat.com/docs/wp/performancetuning/Power_Management_Guide.pdf [3] http://www.ncsu.edu/wcae/ISCA2007/p52-suarez.pdf [4] http://lists.us.dell.com/pipermail/linux-poweredge/2007-December/033900.html [5] http://www.anandtech.com/cpuchipsets/showdoc.aspx?i=3276p=6 [6] http://patmos2001.eivd.ch/program/Repro%5CArt_10_1.pdf [7] http://async.org.uk/ukasyncforum14/forum14-papers/forum14-moore.pdf [8] http://www.fulcrummicro.com/press_archives/edn_03-0501.pdf
Re: [dwm] [OT] frequency scaling and power consumption
On Sat, May 09, 2009 at 12:29:50AM -0500, Kurt H Maier wrote: From a physics standpoint if you're generating less heat you're consuming less power. That's true, but I don't believe that the reduction of power consumption is proportional to the performance losings, so the performance per watt ratio could be worse. Regards, Matthias-Christian
Re: [dwm] [OT] frequency scaling and power consumption
On Sat, May 9, 2009 at 7:29 AM, Kurt H Maier karmaf...@gmail.com wrote: From a physics standpoint if you're generating less heat you're consuming less power. # Kurt H Maier And you generate less heat when you allow the cpu to take advantage of it's high frequencies at high loads, because you can put it back into a lower power state early. It didn't use to be this way though with older cpus, so you should definitely subscribe to the powertop mailinglist if that is of real concern to you.
[dwm] [OT] Reputable online computer shops in Germany?
Hello, I am considering getting an eee pc or something similar, and am trying to compare prices. I currently live in germany but the only store i have bought from here before is bora computer which is ok, but I am looking for a few more data points. I am wondering if there are some good online shops dwm users in germany can recommend. For laptops and also general things (ram, drives, etc) would be helpful...maybe comparable to newegg.com in the u.s. if you are familiar. Amazon.de seems more expensive that the .com version for some reason. One I found is notebook.de --- are they ok? Any recommendations? thanks for the help, -adam.
Re: [dwm] Stats script
* Jake Todd jaketodd...@gmail.com [2009-05-03 05:31]:
What are you guys using?
I use
in .Xsession
while true ; do
xsetroot -name `${HOME}/.status`;
sleep 4;
done
and here is .status
cat .status |~
#!/bin/sh
sswriter \
-w 10 \
-f /home/stanio/.current_song /home/stanio/.recent_events \
-a 20 25 \
-t THRM \
-D eth0 eth2 \
-d %Y-%m-%d %a %H:%M'%S \
-s PCM Master Mic \
%[ | %f0%] %[ | %f1%] |%(B* WARNING * BATTERY *%)%(b%v1%V1 %v2%V2| %d|
%m %sMB| %n%(w %q%%%) %i:%o kB| %C0MHz %p0%%| %b0%%| %t0°C%)
Sswriter is pretty powerful c program posted perhaps more than year
ago on the wmii mailing list, as I was still half wmii user. I use a
patched 0.3.1 version.
sample output of ./.status is:
song | event |81on 80off| 2009-05-09 Sat 11:44'18| 278 0MB| eth0 0.0:0.0 kB|
798MHz 46%| 100%| 53°C
which translates to
song|event|volume of headphones and
micropone|date|memory+swap|link|cpu|battery|temp
For those interested:
http://www.mail-archive.com/w...@suckless.org/msg01935.html
I noticed I very rarely look at most of the stuff in this status bar thoug,
so I am thinking of 2 staged status query -- e.g. date/time and temp in the
dwm status bar; The rest can be queried 'on demand' in the console.
--
cheers
stanio_
Re: [dwm] Stats script
On Sat, May 09, 2009 at 11:49:53AM +0200, sta...@cs.tu-berlin.de wrote: I noticed I very rarely look at most of the stuff in this status bar thou= g, so I am thinking of 2 staged status query -- e.g. date/time and temp in t= he dwm status bar; The rest can be queried 'on demand' in the console. Indeed. It's mostly just fun to create, but is never usable. Now I've only got the clock. --=20 cheers stanio_
Re: [dwm] Stats script
On Sat, May 09, 2009 at 11:49:53AM +0200, sta...@cs.tu-berlin.de wrote: I noticed I very rarely look at most of the stuff in this status bar thoug, so I am thinking of 2 staged status query -- e.g. date/time and temp in the dwm status bar; The rest can be queried 'on demand' in the console. I keep clock and battery in the status bar, and other info is in other short scripts bound to Super-I, Super-P, Super-O, etc. The loop in xinitrc ensures it will automatically revert to the clock within sixty seconds. # Kurt H Maier
Re: [dwm] Stats script
I have mine just clock and date, but it'll show other stats when they are interesting ie high cpu usage, discharging/low battery, low/off wifi, etc Jeremy On Sat 09 May 2009 - 10:47AM, Kurt H Maier wrote: On Sat, May 09, 2009 at 11:49:53AM +0200, sta...@cs.tu-berlin.de wrote: I noticed I very rarely look at most of the stuff in this status bar thoug, so I am thinking of 2 staged status query -- e.g. date/time and temp in the dwm status bar; The rest can be queried 'on demand' in the console. I keep clock and battery in the status bar, and other info is in other short scripts bound to Super-I, Super-P, Super-O, etc. The loop in xinitrc ensures it will automatically revert to the clock within sixty seconds. # Kurt H Maier
Re: [dwm] HELP! I don't understand config.h or how dwm works!
Hi, * Matthias-Christian Ott o...@mirix.org [2009-05-08 21:43]: On Fri, May 08, 2009 at 03:14:39PM -0400, Benjamin Conner wrote: [...] how to setup DWM. I want some autostart programs, some keyboard shortcuts, and some basic stuff so I can use it. (and once I can use it, to use it well :P) Can anyone give me some basic help to using DWM? I found some stuff but nothing helps for me. I can post my config.h too. I will attach it to the message. Debian Sid. DWM 5.5. Thanks. I really appreaciate if anyone can help. Learn C. Use man. The award for the most useless comment in this thread goes to... you ;) Cheers Nico -- Nico Golde - http://www.ngolde.de - n...@jabber.ccc.de - GPG: 0x73647CFF For security reasons, all text in this mail is double-rot13 encrypted. pgpGiMNxCt17Q.pgp Description: PGP signature
Re: [dwm] Stats script
`uptime` is the best combination of usefulness and simplicity in my opinion. Then again I only use dwm on the desktop and things such as wireless signal and battery life done apply to me. miles
Re: [dwm] Stats script
* Kurt H Maier karmaf...@gmail.com [2009-05-09 17:47]: On Sat, May 09, 2009 at 11:49:53AM +0200, sta...@cs.tu-berlin.de wrote: I noticed I very rarely look at most of the stuff in this status bar thoug, so I am thinking of 2 staged status query -- e.g. date/time and temp in the dwm status bar; The rest can be queried 'on demand' in the console. I keep clock and battery in the status bar, and other info is in other short scripts bound to Super-I, Super-P, Super-O, etc. The loop in xinitrc ensures it will automatically revert to the clock within sixty seconds. Great idea. I think I'll go for that. -- cheers stanio_
Re: [dwm] HELP! I don't understand config.h or how dwm works!
On Sat, May 9, 2009 at 11:24 AM, Nico Golde n...@ngolde.de wrote: Hi, * Matthias-Christian Ott o...@mirix.org [2009-05-08 21:43]: Learn C. Use man. The award for the most useless comment in this thread goes to... you ;) He's going to need to do exactly that if he's going to get anywhere with dwm. Nothing useless about that advice. # Kurt H Maier
Re: [dwm] [OT] Reputable online computer shops in Germany?
Hello, * Adam adam.listm...@gmail.com [2009-05-09 11:50]: Hello, I am considering getting an eee pc or something similar, and am trying to compare prices. I am considering buying a netbook in the very near future, too. You might share your criteria and the results of your comparison -- I at least would be interested in that. My requirements are pretty simple in my opinion, but I get the impression they seem not to be very common ... Instead current offers are bloated with stuff I am only using once per year or not at all. - silent (very silent pls) - light (up to 1.2kg) - above 3(.5) hours of battery life (text input) - usable keyboard (best seen so far is the one of HP mini, fell in love with it, actually; but lenovo's one is not that bad, too) - 8.9 inch display or bigger - as small dimensions as possible - more than 8 GB internal drive (I think 16 to 32 GB would be perfect. unlike most of them having 100GB+ ...) The problem with deciding whether some requirement is satisfied is not that simple: e.g. reviews on battery life are based on Win XP or SomeLinux+KDE or whatever, and if they say 2.5 hours how much does it mean for me with debian+dwm or without X at all? If someone has experience with these things, pls share. I currently live in germany but the only store i have bought from here before is bora computer which is ok, but I am looking for a few more data points. I am wondering if there are some good online shops dwm users in germany can recommend. For laptops and also general things (ram, drives, etc) would be helpful...maybe comparable to newegg.com in the u.s. if you are familiar. Amazon.de seems more expensive that the .com version for some reason. One I found is notebook.de --- are they ok? Any recommendations? I cannot recommend anything, but for more data points you can just type in any search engine 'preisvergleich eee pc' or 'preisvergleich netbook' or 'preisvergleich computer zubehoer' and examine the top 10-15 search results for what online shops they offer. In the past, I used to visit http://www.notebooksbilliger.de/ because I liked their advanced search and comparison, but now they don't offer (anymore?) the currently for me most interesting netbooks. Hope this helps. -- cheers stanio_
Re: [dwm] HELP! I don't understand config.h or how dwm works!
i dont think so, i never reaad the man page and i dont know to program in C a lot, so i think the only thing he needs are time to spare trying and examples to try and figure it out how to do the things he want On Sat, May 9, 2009 at 1:53 PM, Kurt H Maier karmaf...@gmail.com wrote: On Sat, May 9, 2009 at 11:24 AM, Nico Golde n...@ngolde.de wrote: Hi, * Matthias-Christian Ott o...@mirix.org [2009-05-08 21:43]: Learn C. Use man. The award for the most useless comment in this thread goes to... you ;) He's going to need to do exactly that if he's going to get anywhere with dwm. Nothing useless about that advice. # Kurt H Maier -- - http://aleyscha.spaces.live.com/ El lugar mas peligroso de todos es el cielo... En el, cada pensamiento se hace realidad... sea bueno o malo... creas tu paraiso o tu infierno
Re: [dwm] [OT] Reputable online computer shops in Germany?
On Sat, 9 May 2009 19:30:12 +0200 sta...@cs.tu-berlin.de wrote: My requirements are pretty simple in my opinion, but I get the impression they seem not to be very common ... Instead current offers are bloated with stuff I am only using once per year or not at all. I have an Asus Eee 1000H and my wife has an Eee 901. Both running Linux (XP ditched) - silent (very silent pls) 901 is silent (well there is a fan you can slightly hear if the machine get really hot). I'm allergic to computer noise, but I don't find the fan noise from the 1000H problematic. If you are pushing the computer for a long time so it really gets hot, you can hear the fan well. - light (up to 1.2kg) 1000H is 250 g more, but that should not be a problem. 901 feels almost too light :-) - above 3(.5) hours of battery life (text input) I have now 6 hours battery life with the 1000H running dwm on Ubuntu 9.04. My wife has about 5.5-6h running xfce4 Xubuntu 9.04, but this PC is not power optimized like my 1000H though. - usable keyboard (best seen so far is the one of HP mini, fell in The keyboard of 1000H is very good. The 901's is small and needs getting used to. My fingers are too big for it I think. Try the keyboards in a shop! - 8.9 inch display or bigger 8.9 - 901 10 -1000H - as small dimensions as possible The 1000H is slightly bigger, but still very small. - more than 8 GB internal drive (I think 16 to 32 GB would be perfect. unlike most of them having 100GB+ ...) 640kb should be enough for everyone? Well it depends on your needs. For me I wanted more space so I can install all the software I want and need. On my wifes Eee I have had to remove things in order to stay within the 4Gb (of the primary SSD) secondary is 12Gb. I don't find the SSD to be practically any faster. In fact I find the 901 to be more sluggish than the 1000H, but it could be due to the CPU also. You need to change the scheduler at least to get the 901 more responsive. At the moment there is no loss going for a HDD IMHO. For me I would choose the 1000H over the 901 for usability. The 901 is great too, my wife has written two papers on it without a problem, but for me the keyboard is a bit troublesome. What I can say is that dwm is a perfect match for the Eee family! HTH Preben -- Preben Randhol http://wee-free-lore.blogspot.com/
Re: [dwm] HELP! I don't understand config.h or how dwm works!
I agree with Leandro. I mean, it seems like it's pretty simple, at least what I want to do. Anyway, thanks for the help. On Sat, May 9, 2009 at 1:36 PM, Leandro Chescotta leandro.chesco...@gmail.com wrote: i dont think so, i never reaad the man page and i dont know to program in C a lot, so i think the only thing he needs are time to spare trying and examples to try and figure it out how to do the things he want On Sat, May 9, 2009 at 1:53 PM, Kurt H Maier karmaf...@gmail.com wrote: On Sat, May 9, 2009 at 11:24 AM, Nico Golde n...@ngolde.de wrote: Hi, * Matthias-Christian Ott o...@mirix.org [2009-05-08 21:43]: Learn C. Use man. The award for the most useless comment in this thread goes to... you ;) He's going to need to do exactly that if he's going to get anywhere with dwm. Nothing useless about that advice. # Kurt H Maier -- - http://aleyscha.spaces.live.com/ El lugar mas peligroso de todos es el cielo... En el, cada pensamiento se hace realidad... sea bueno o malo... creas tu paraiso o tu infierno -- Tommy A-TEC Computers www.a-tecpc.net
