similar to: Power consumption monitoring

Hello, I was not happy with the power consumption of CentOS 6 x86_64 on a new Lenovo Thinkpad x220 Tablet and I worked on reducing it. I just wanted to share with the list one of the changes which gave me the most significant improvement. As per http://www.williambrownstreet.net/blog/?p=387, add the following kernel arguments to the GRUB boot configuration: pcie_aspm=force

Hello guys, Did anyone noticed how green CentOS 6 is compared to the previous release? I've been running a couple of "CentOS 6" VMs (on our vSphere environment) for the last couple of weeks and noticed a BIG difference when it comes to CPU usage when the VM is completely idle. I would like to share what I've seen in our environment: PfSense 2.0 (FreeBSD) VM: 40 Mhz CentOS

I'd like to get disk I/O down to a minimum for my new Centos 5.5 installation. The machine will not be used as a web server anymore, as that's now hosted on a cloud platform. So there are no HTTP requests coming down the line. If I move the SWAP partition and /var/log/ to a small spare drive, and install Centos on the new larger drive, is there anything else that would cause disk

Hi all, I use CentOS 5.5 x86_64 on my laptop. I have couple of entries in /etc/sysctl.conf entries according to the recommendations http://www.lesswatts.org/projects/powertop/ When Gnome Desktop starts something resets them to defaults. For example 'vm.dirty_writeback_centisecs = 1500' resets back to 30. Does anybody have any idea how to workaround this? Thanks. Andrej.

hello tincers, when I on battery on my notebook, running powertop, I get nic:<tinc-net-name> as the most power consuption resource in my notebook just after the screen. This happens no matter if I have traffic or not. I am not really sure that if this is really a tinc fault or a tap/tun implementation that never sleeps. any advice? -------------- next part -------------- An HTML

Hello, I'm considering buying a second-hand Thinkpad T60 (with 2 GB RAM), as a secondary laptop in order to run CentOS 5 on the field. My main focus is therefore to have something robust, reliable and above all well compatible with CentOS. Hibernate / suspend feature are important to me, because that's the main issue I have with CentOS on other laptops. I have found the following

Hi, all These days, I am interested in green IT area for low power OS So, I have a question about it. Is there any good idea or comments about power management related with cgroup based resource management? I have no idea about that, but it seems to be possible to find a good concept. And I hope so Is it some strange question? ^^ Regards, Dong-Jae Kang

PowerEdge 2850 with PERC SCSI RAID controller. 16GB RAM Dual Intel(R) Xeon(TM) CPU 3.00GHz Using megaraid driver and xfs on 3x 300GB SCSI disks as /dev/sdb (total 572GB) (RAID-5) Stock Centos 6.4 x64, everything updated. Kernel : 2.6.32-358.2.1.el6.x86_64 #1 SMP My Load always shows : top - 10:30:21 up 23:09, 1 users, load average: 0.99, 0.96, 0.79 yet there is no services what-so-ever

Hi, I would have filed this as a bug but bugs.xiph.org doesn't seem to work (despite quite enthusiastically claiming to :)). So here goes: I'm seeing quite a few wakeups/sec in icecast2 2.3.2 on Debian Testing. In fact, whether icecast is doing anything or not, powertop reports 44.3 wakeups per second. This is pretty big number, on my laptop it means icecast alone is responsible for

Hello, I am using an up to date CentOS 6 x86_64 laptop (Thinkpad X220t) and after struggling a bit I could install it a few months ago with a pure EFI boot. However, I am not really satisfied with such things as stability, power consumption, etc. and now that I have a little more time I want to investigate these issues thoroughly. So, my questions are: - Does EFI impacts other things than the

Hi, My laptop runs a local IMAP server so that I'm immune from breaking my mail client, and when playing around with powertop I discovered that Dovecot (in particular imap-login) wakes up every 1000ms and then every 50ms even when no clients are connected. A bit of stracing shows this: gettimeofday({1180875699, 667917}, NULL) = 0 <0.000010> poll([{fd=7,

Hello, on CentOS 6, I am routinely writing mails in English, German and French and using the related hunspell dictionaries for the spelling in Firefox (I'm using Google Apps). This works fine but the problem is that languages are added for all the possible locales (English US, UK, Philippines, Bostwana, Trinidad and Tobago, Denmark (sic!), ... and German Germany, Austria... and French

from [CentOS] CentOS 5.4? anyone? > Is that a big problem for the people who write the code and have every > revision preserved for posterity (and for others to learn from) in a > public revision control system? > I'm not sure that I understand. Is there indeed such a public repository of the build scriptds / RPM specs used by CentOS? That would indeed be fascinating and useful

Hello, are there any best practices for the length of user names? I tend to limit them to 8 characters and to follow the pattern 'first letter of the first name'+'first 7 letters of the last name' (e.g. mbaudier). But people are sometimes frustrated with having their last name truncated and I wonder if limiting the user name to 8 characters is not a kind of superstition coming

> Then I hope to finish my tutorial on installing Eclipse > Helios for Centos 5.5 Is there anything special to be done? I just unzipped the SR1 distribution for RCP/RAP developers linux-gtk-x86_64 and it works without problem on an up to date CentOS 5.5 x86_64. (to be more precise: I install it as root under /opt, install some plugins like subclipse and regular users start it from there)

Hello, I have a Kyocera FS1920 network printer, and I run an up-to-date CentOS 5.6 x86_64 workstation. When I try to print with evince or Firefox the default paper size is always set to US Letter whereas the printer use A4. I have searched and other people seem to have the problem, but the only recommendations that I have found boil down to setting the default paper size to A4 in the CUPS

Hello, since I upgraded from CentOS x86_64 5.4 to 5.5, I noticed that Firefox has become significantly slower on GMail (or Google Apps Mail). The page becomes slow to scroll as soon as there are more than a few mails in a conversation (like in a typical CentOS mailing list thread). Did anyone else notice that as well? (I guess that I'm not the only GMail user around) Could I have missed

Hello, I have been learning Rails for several weeks now. I am working through Michael Hartl''s tutorial and other various things. My question is basically regarding what type of environment to do my development in. First, some background: I have used different linux distros on and off throughout the years, so it was easy and familiar for me to set up my desktop computer with Mint and

Hi, I'm planning to upgrade an old public/internal development infrastructure and will use CentOS 5.4 x86_64 as basis. One of the critical server is Subversion (as an Apache httpd module). We currently use Subversion v1.4 on the server and v1.6 on our clients. While I was very happy with the v1.4 server over the years, we now sometimes have weird issues which seem related to compatibility

https://bugs.freedesktop.org/show_bug.cgi?id=101404 Bug ID: 101404 Summary: GTX 970M (GM204-A) not powered off when not in use (DynPwr in stead of DynOff) Product: xorg Version: unspecified Hardware: Other OS: Linux (All) Status: NEW Severity: normal Priority: medium