Date: Fri, 2 Nov 2007 15:48:00 -0400 From: Nick Evans <nevans@talkpoint.com> To: Jeff Roberson <jroberson@chesapeake.net> Cc: Josh Carroll <josh.carroll@gmail.com>, freebsd-performance@freebsd.org Subject: Re: ULE vs. 4BSD in RELENG_7 Message-ID: <20071102154800.3ae9ac99@pleiades.nextvenue.com> In-Reply-To: <20071102102331.G544@10.0.0.1> References: <8cb6106e0710230902x4edf2c8eu2d912d5de1f5d4a2@mail.gmail.com> <20071024111105.M598@10.0.0.1> <8cb6106e0710241229i12852d8cq436f4c955ac62c56@mail.gmail.com> <20071024133240.X598@10.0.0.1> <8cb6106e0710251925s2db0117cvcb67321b08d7b2a1@mail.gmail.com> <20071102102331.G544@10.0.0.1>
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> This is interesting. I have had a couple of laptop users report success > in using lower power saving modes with ULE. Are these core temp > observations repeatable? > > Thanks, > Jeff > > > > > Thanks again for all your help! Please let me know if/when I can do > > anything else to help out. > > > > Regards, > > Josh > > _______________________________________________ > > freebsd-performance@freebsd.org mailing list > > http://lists.freebsd.org/mailman/listinfo/freebsd-performance > > To unsubscribe, send any mail to > > "freebsd-performance-unsubscribe@freebsd.org" > > > _______________________________________________ > freebsd-performance@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-performance > To unsubscribe, send any mail to > "freebsd-performance-unsubscribe@freebsd.org" After this was mentioned I tried coretemp on my 8-core system and am seeing the same behavior. Idle: dev.cpu.0.temperature: 48 dev.cpu.1.temperature: 45 dev.cpu.2.temperature: 41 dev.cpu.3.temperature: 41 dev.cpu.4.temperature: 44 dev.cpu.5.temperature: 44 dev.cpu.6.temperature: 41 dev.cpu.7.temperature: 42 After 10-15 minutes of 8 distributed.net crunchers running: dev.cpu.0.temperature: 63 dev.cpu.1.temperature: 59 dev.cpu.2.temperature: 55 dev.cpu.3.temperature: 54 dev.cpu.4.temperature: 58 dev.cpu.5.temperature: 59 dev.cpu.6.temperature: 56 dev.cpu.7.temperature: 56 Interesting distribution. Cores 2, 3, 6 and 7 consistently run cooler than 0, 1, 4 and 5. This behavior has been consistent since I started looking at it a few days ago. Is there anyway to tell which package a particular core is attached to or is it sequential 0-3 on package 1, 4-7 on package 2? Nick
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