Thanks for the hint! Quoting Huacai Chen <[email protected]>:
> Hi, > > We design CPUAutoplug for power saving in kernel, CPUAutoplug try to > shutdown some cores if the system load is low. If you want to disable > CPUAutoplug, you can add a kerenl parameter "autoplug=off". > > As an alternative, you can disable CPUAutoplug at runtime: > echo 0 > /sys/devices/system/cpu/cpuautoplug/enabled > and then open the offline cores: > echo 1 > /sys/devices/system/cpu/cpu?/online > while "?" is the id of offline cores. > > As another alternative, you can set the min CPU count of CPUAutoplug to 4: > echo 4 > /sys/devices/system/cpu/cpuautoplug/mincpus > > Regards, > Huacai I have actually the 4 cores online, running at 100% each the phoronix benchmark from yesterday. The estimated time to completion is in 5 hours approx. Regards, samy > > > On Thu, Dec 20, 2012 at 4:16 PM, [email protected] <[email protected]> > wrote: > > Hi, > > > > I just ran a few tests [0] using Phoronix on this machine: Lemote laptop > > 8131 [1] with Loongson 3A CPU [2] [3]: > > > > The system logs are available in [4]: > > > > The laptop is running the stock LOonux3 [5] GNU/Linux distribution, based > on > > Debian/Squeeze. > > > > The laptop was kindly donated by Lemote [6] for the GNewSense [7] porting > > project. > > > > Interessingly, the cpuinfo [8] shows 2 active processors, while the lscpu > > [9] info shows 4 processors, from which 2 are active and 2 inactive. > > > > [0] http://openbenchmarking.org/result/1212206-RA-LOONGSON875 > > [1] http://www.lemote.com/products/computer/yilong/312.html > > [2] http://www.loongson.cn/product_info.php?id=31 > > [3] http://www.loongson.cn/dev/wiki/%E9%BE%99%E8%8A%AF3A > > [4] > > > http://openbenchmarking.org/system/1212206-RA-LOONGSON875/loongson-8131-loonux-smallpt > > [5] http://dev.lemote.com/category/loonux3 > > [6] http://en.wikipedia.org/wiki/Lemote > > [7] http://www.gnewsense.org/Projects/GNewSenseToMIPS-3A > > [8] > > > http://openbenchmarking.org/system/1212206-RA-LOONGSON875/loongson-8131-loonux-smallpt/cpuinfo > > [9] > > > http://openbenchmarking.org/system/1212206-RA-LOONGSON875/loongson-8131-loonux-smallpt/lscpu > > > > -- > > You received this message because you are subscribed to the Google Groups > > "loongson-dev" group. > > To view this discussion on the web visit > > https://groups.google.com/d/msg/loongson-dev/-/MOERxVehiTMJ. > > To post to this group, send email to [email protected]. > > To unsubscribe from this group, send email to > > [email protected]. > > For more options, visit this group at > > http://groups.google.com/group/loongson-dev?hl=en. > > _______________________________________________ > gNewSense-dev mailing list > [email protected] > https://lists.nongnu.org/mailman/listinfo/gnewsense-dev > _______________________________________________ gNewSense-dev mailing list [email protected] https://lists.nongnu.org/mailman/listinfo/gnewsense-dev
