Hi Andreas, Thanks for sharing that. Your solution is great. For sure it a great feature we should add in the expert mode. Besides this, I think another option solution is to find a way to know the temperature is too high then accordingly reduce the CPU speed. We should discuss more about this. Thanks again.
Steven. On 2013/1/16 上午 07:47, Andreas Winkelbauer wrote: > Dear all, > > several users have reported hardware failures with clonezilla due to > thermal problems, in particular with notebooks (see [1-3]). I also have > seen these issues with my HP 2540p laptop. It seems that the cooling > system of some notebooks is insufficient when the system is run at full > CPU load for an extended period of time (this can be minutes, hours, or > even days before a shut down to prevent overheating will occur). > > Since up to now no solution has been posted here, I'll explain how I > solved the thermal problems for me. A possible solution is to set the > CPU to a fixed, lower operating frequency using cpufreq-set from > cpufrequtils (which is installed by default). This effectively reduces > heat at the cost of a (relatively small) performance penalty. > Specifically, what I did was (for a system with 4 CPUs): > > $ sudo cpufreq-set -c 0 -f 1600MHz > $ sudo cpufreq-set -c 1 -f 1600MHz > $ sudo cpufreq-set -c 2 -f 1600MHz > $ sudo cpufreq-set -c 3 -f 1600MHz > > This worked for me and it should work with all reasonably modern CPUs. > The current settings and the available frequency steps can be read using > > $ cpufreq-info > > A few remarks: cpufreq-set automatically rounds the specified frequency > to the "nearest" available operating frequency (my laptop CPU, e.g., has > a minimum frequency of 1.2 GHz and a maximum frequency of 2.53 GHz with > 11 steps in total). However, I have observed that the rounding sometimes > does not work if -f specifies exactly one of the available frequencies > (then the next higher frequency might be used instead which seems to be > a bug of cpufreq-set). Using the above commands, the CPU runs at a fixed > frequency until changed again or until the next restart. Changes made by > cpufreq-set are not permanent, i.e., the changes are lost if the system > is rebooted. > > Another way to prevent overheating could be to use "cpulimit", but I > find it less suited for this particular use case and the corresponding > package is not installed by default. > > @Steven: I could provide a patch for clonezilla-live to include this in > the expert options. However, we should think about how to implement this > best. > > Cheers, > Andreas > > > [1] > http://sourceforge.net/tracker/?func=detail&aid=3090553&group_id=115473&atid=671650 > [2] > http://sourceforge.net/projects/clonezilla/forums/forum/663168/topic/3903931 > [3] > http://sourceforge.net/projects/clonezilla/forums/forum/394751/topic/3877156 > > > > > ------------------------------------------------------------------------------ > Master Java SE, Java EE, Eclipse, Spring, Hibernate, JavaScript, jQuery > and much more. Keep your Java skills current with LearnJavaNow - > 200+ hours of step-by-step video tutorials by Java experts. > SALE $49.99 this month only -- learn more at: > http://p.sf.net/sfu/learnmore_122612 > > > > _______________________________________________ > Clonezilla-live mailing list > Clonezilla-live@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/clonezilla-live > -- Steven Shiau <steven _at_ nchc org tw> <steven _at_ stevenshiau org> National Center for High-performance Computing, Taiwan. http://www.nchc.org.tw Public Key Server PGP Key ID: 4096R/47CF935C Fingerprint: 0240 1FEB 695D 7112 62F0 8796 11C1 12DA 47CF 935C ------------------------------------------------------------------------------ Master Java SE, Java EE, Eclipse, Spring, Hibernate, JavaScript, jQuery and much more. Keep your Java skills current with LearnJavaNow - 200+ hours of step-by-step video tutorials by Java experts. SALE $49.99 this month only -- learn more at: http://p.sf.net/sfu/learnmore_122612 _______________________________________________ Clonezilla-live mailing list Clonezilla-live@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/clonezilla-live
