On Friday 24 December 2010 09:00:03 [email protected] wrote: > > PS - once jester is doing basic snmp/cacti/squid/etc and the QNAP doing > > the "heavy-lifting", I intend under-clocking the little dear from > > 2.66GHz to about 1.6GHz :) Save the planet and all that. I wouldn't > > under clock it, it should support dynamic clocking (one presumes) that > > will drop the clock pretty low when idle, then bump it up when in use. > > This often will save power as the CPU can stay in low power "sleep" > > states for longer, at least on the smaller end of the scale. > > Yep - will do that as well as under-clocking (which is the plan). THe > under-clocking will also reduce heat and power on the FSB etc. too, which > wouldn't happen with dynamic scaling alone AFAIK. Happy to be proven > wrong on this as the CPU barely breaks out of "brrr, I'm freezing, can > someone please do something to warm me up" mode, and rarely heats up much > beyond ambient, so if I can avoid the under-clocking....GREAT! The two > 15k RPM 3.5" 500GB drives though, they generate a metric truck load of > heat!! Hence the reason I'm ditching them for an SSD and external NAS.
Actually the thought experiment is krap. Perth: outside 33C inside 32C cpu clocked normally and doing 'normal' stuff (a couple of VMs, some mythbackend, a firefox or two, kmail, gnome desktop) is idling along at 1G and 37C [haycorn] /home/jam [1999]% cat /proc/cpuinfo processor : 0 vendor_id : AuthenticAMD cpu family : 15 model : 107 model name : AMD Athlon(tm) X2 Dual Core Processor BE-2350 stepping : 1 cpu MHz : 1000.000 cache size : 512 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 2 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt rdtscp lm 3dnowext 3dnow rep_good extd_apicid pni cx16 lahf_lm cmp_legacy svm extapic cr8_legacy 3dnowprefetch lbrv bogomips : 2000.32 TLB size : 1024 4K pages clflush size : 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management: ts fid vid ttp tm stc 100mhzsteps processor : 1 pretty much ditto James -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
