* Best CPU and Chipset for cpufreq? @ 2004-01-14 16:39 Jesper Anderson 2004-01-14 17:18 ` Juan M. Duran 2004-01-16 19:36 ` Carl Thompson 0 siblings, 2 replies; 9+ messages in thread From: Jesper Anderson @ 2004-01-14 16:39 UTC (permalink / raw) To: cpufreq I'm currently planning to get a new laptop to work and play on. I'm trying to find a good compromise for my needs, and it will obviously run Linux of some flavour. So, I've been trying to find out which CPU and chipset would be "best", or at least have good support, from cpufreq. The current system I'm looking at has a Mobile AMD Athlon and a VIA chipset. Unfortunately the model is claimed to run hot and has low battery time, so I'd want to be able to choke it down as much as possible when I just sit and type on it. Is this supported? Would I be better off looking at an Intel M model? Something else entirely? Thanks in advance, Jesper PS. The model I'm looking at is the Acer Ferrari - rather sexy little beast. ;) ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: Best CPU and Chipset for cpufreq? 2004-01-14 16:39 Best CPU and Chipset for cpufreq? Jesper Anderson @ 2004-01-14 17:18 ` Juan M. Duran 2004-01-14 19:22 ` Jesper Anderson 2004-01-16 19:36 ` Carl Thompson 1 sibling, 1 reply; 9+ messages in thread From: Juan M. Duran @ 2004-01-14 17:18 UTC (permalink / raw) To: cpufreq El mié, 14-01-2004 a las 17:39, Jesper Anderson escribió: Hi everybody. It is my first post. Be merciful > The current system I'm looking at has a Mobile AMD Athlon and a VIA > chipset. Unfortunately the model is claimed to run hot and has low > battery time, so I'd want to be able to choke it down as much as > possible when I just sit and type on it. I have an Acer 1314LC (VIA KN266 Athlon 2400+) and is really hot, specially running MSwindows. Fortunately, I have been using Fedora Core 1 with the default athlon kernel and Im able to put the Mhz down to the minimun level. Just put on your local.rc something like /sbin/modprobe powernow-k7 echo -n "0:1064000:1795500:powersave" > /proc/cpufreq echo -n "0:789000:1795500:powersave" > /proc/cpufreq I do this on two steps to avoid freezing the laptop. At least with the old cpufreq driver this problem happened and is quite frequent with athlon laptops. (eg Acer aspire) > Is this supported? Would I be better off looking at an Intel M model? > Something else entirely? IMHO, Intel M model is better processor for a laptop computer. Of course the results not only depend of the processor, but also of the overall construction of the laptop. > PS. The model I'm looking at is the Acer Ferrari - rather sexy little > beast. ;) I have seen this model, and I must tell you that is much better than aspire series and dissipates less heat (al least using my "hand-meter") -- Juan M. Duran Departamento de Biologia Celular y Anatomia Patologica Facultad de Medicina Universidad de Barcelona C/ Casanova 143 08036 Barcelona, Spain Tel. 34-93-4021909 Fax 34-93-4035260 ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: Best CPU and Chipset for cpufreq? 2004-01-14 17:18 ` Juan M. Duran @ 2004-01-14 19:22 ` Jesper Anderson [not found] ` <20040114204934.GA18333@piout.net> 0 siblings, 1 reply; 9+ messages in thread From: Jesper Anderson @ 2004-01-14 19:22 UTC (permalink / raw) To: cpufreq On Wed, Jan 14, 2004 at 06:18:08PM +0100, Juan M. Duran wrote: > > I have an Acer 1314LC (VIA KN266 Athlon 2400+) and is really hot, > specially running MSwindows. Fortunately, I have been using Fedora > Core 1 with the default athlon kernel and Im able to put the Mhz > down to the minimun level. Just put on your local.rc something like Thanks for the tip. A 2400+ runs at around 1.7GHz, right? How low can you get it to go? Am I reading the echo statements right at 789 MHz? > IMHO, Intel M model is better processor for a laptop computer. Of > course the results not only depend of the processor, but also of the > overall construction of the laptop. Yeah, the Intel M seems to be pretty nice. Sadly I haven't managed to find an M that has a 1400x1050 screen, Radeon with dual screen capability, DVD+-RW, 802.11g, ieee1394 and bluetooth. Or many other machines than the Ferrari that have this, actually. 802.11b is much more common, and I can compromise on that, I suppose. > > PS. The model I'm looking at is the Acer Ferrari - rather sexy > > little beast. ;) > > I have seen this model, and I must tell you that is much better than > aspire series and dissipates less heat (al least using my > "hand-meter") Okay, that's good to know. I've read as many reviews of it as I managed to find, and they all said it gets hot in the lower left, and that it gets more like 2 hours battery rather than the advertised 3. My "sweet spot" is 3 hours; if I can make or beat that for normal use, I'm happy. When pushing it (games etc.) it doesn't matter as much, as I'll probably have power nearby. Jesper ^ permalink raw reply [flat|nested] 9+ messages in thread
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* Re: Best CPU and Chipset for cpufreq? [not found] ` <20040114204934.GA18333@piout.net> @ 2004-01-14 21:54 ` Jesper Anderson [not found] ` <20040114221840.GA16987@piout.net> 0 siblings, 1 reply; 9+ messages in thread From: Jesper Anderson @ 2004-01-14 21:54 UTC (permalink / raw) To: cpufreq On Wed, Jan 14, 2004 at 09:49:34PM +0100, Alexandre Belloni wrote: > > Try looking at a Dell Inspiron 8600. Mine has a 1680*1050 screen, > Geforce FX 5650, DVD+RW (only +) and ieee1394. But it's a Dell .... ;P What's your experience with running Linux on it? Specifically cpu scaling and the like? > I can have up to 4 hours with only one battery and up to 6h30 when I > plug the second battery. That can go up to 9 hours when doing > absolutely nothing :). I doubt I'll ever manage to do *nothing*, but that does sound good. Have you figured out what difference the frequency and voltage scaling from cpufreq does to this? I'd really love to see a page with a comparison on how well the various CPU's and chipsets work with cpufreq ... maybe I'll do the right thing and make one; we'll see ... Jesper ^ permalink raw reply [flat|nested] 9+ messages in thread
[parent not found: <20040114221840.GA16987@piout.net>]
* Re: Best CPU and Chipset for cpufreq? [not found] ` <20040114221840.GA16987@piout.net> @ 2004-01-14 22:42 ` Jesper Anderson 2004-01-15 16:27 ` Ducrot Bruno 0 siblings, 1 reply; 9+ messages in thread From: Jesper Anderson @ 2004-01-14 22:42 UTC (permalink / raw) To: cpufreq On Wed, Jan 14, 2004 at 11:18:40PM +0100, Alexandre Belloni wrote: > > When I wanted to buy a laptop, I first looked at Acer (803 LMi and > Ferrari) but finally, after comparing, I found the dell was better > (in my point of view). Mmm ... just looked it over, and it's a *very* impressive machine. Especially considering how good battery performance it can get. Sadly it's only available with the Nvidia 5200 or Radeon 9600 Ultra over here (Sweden); the 5200 is lame-o, and the Radeons have pretty bad Linux support (if you don't mind Nvidia closed drivers). Ah well. And to keep that part (graphics) on topic, it seems the new NVidia graphics cards for laptops scale their voltage. That might be something that we'll end up needing a driver for. Interesting technology, for sure. Thanks for the impromptu benchmarking. I'm right now leaning a lot more towards one of these instead of an Acer. Just one questions; you have the 1.7 GHz one, right? How hot does it get? Do you notice that changing with cpu frequency adjustment? This (heat dissipation and power consumption in various loads) are the things that are really hard to find, and where I find the Linux utilities to generally outperform Windows. Or maybe it just is that Windows is always using CPU for a lot of background stuff ... Thanks again, Jesper ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: Best CPU and Chipset for cpufreq? 2004-01-14 22:42 ` Jesper Anderson @ 2004-01-15 16:27 ` Ducrot Bruno 0 siblings, 0 replies; 9+ messages in thread From: Ducrot Bruno @ 2004-01-15 16:27 UTC (permalink / raw) To: cpufreq; +Cc: Ducrot Bruno On Wed, Jan 14, 2004 at 11:42:38PM +0100, Jesper Anderson wrote: > And to keep that part (graphics) on topic, it seems the new NVidia > graphics cards for laptops scale their voltage. That might be > something that we'll end up needing a driver for. Interesting > technology, for sure. Graphics cards for mobile do that for ages. Just that most of time constructors do not give specs for doing so. AFAIK, the radeon code in the fb does it (at least in benh tree), and there are some experimental codes for in DRI CVS. -- Ducrot Bruno -- Which is worse: ignorance or apathy? -- Don't know. Don't care. ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: Best CPU and Chipset for cpufreq? 2004-01-14 16:39 Best CPU and Chipset for cpufreq? Jesper Anderson 2004-01-14 17:18 ` Juan M. Duran @ 2004-01-16 19:36 ` Carl Thompson 2004-01-16 21:01 ` Dave Jones 1 sibling, 1 reply; 9+ messages in thread From: Carl Thompson @ 2004-01-16 19:36 UTC (permalink / raw) To: Jesper Anderson; +Cc: cpufreq My current main laptop is an eMachines M5305 and it has been fantastic. It has an Athlon XP 2200+ that can throttle all the way down to 532MHz. Using ACPI+CPUFreq+CPUSpeed+laptop_mode+noatime+not-syncing-syslog I routinely approach 3 hours battery time. I can get quite a bit better than that if I don't run X, don't use wireless, shut down services and syslog and generally don't use the computer! Also, while it can get warm if I max the CPU for a long period of time, I can still keep it in my lap. Plus, the eMachines laptops are very Linux-friendly, have a widescreen aspect ratio (1280x800) and are very cheap despite being very powerful. Carl Thompson Quoting Jesper Anderson <jesper@pobox.com>: > I'm currently planning to get a new laptop to work and play on. I'm > trying to find a good compromise for my needs, and it will obviously > run Linux of some flavour. > > So, I've been trying to find out which CPU and chipset would be > "best", or at least have good support, from cpufreq. > > The current system I'm looking at has a Mobile AMD Athlon and a VIA > chipset. Unfortunately the model is claimed to run hot and has low > battery time, so I'd want to be able to choke it down as much as > possible when I just sit and type on it. > > Is this supported? Would I be better off looking at an Intel M model? > Something else entirely? > > Thanks in advance, > > Jesper > > PS. The model I'm looking at is the Acer Ferrari - rather sexy little > beast. ;) > > > _______________________________________________ > Cpufreq mailing list > Cpufreq@www.linux.org.uk > http://www.linux.org.uk/mailman/listinfo/cpufreq > > ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: Best CPU and Chipset for cpufreq? 2004-01-16 19:36 ` Carl Thompson @ 2004-01-16 21:01 ` Dave Jones 2004-01-16 22:09 ` Carl Thompson 0 siblings, 1 reply; 9+ messages in thread From: Dave Jones @ 2004-01-16 21:01 UTC (permalink / raw) To: Carl Thompson; +Cc: cpufreq On Fri, Jan 16, 2004 at 11:36:49AM -0800, Carl Thompson wrote: > My current main laptop is an eMachines M5305 and it has been fantastic. It has > an Athlon XP 2200+ that can throttle all the way down to 532MHz. Interesting, I've received reports that model has broken PST tables. What BIOS revision do you have ? (dmidecode output would be useful) > Plus, the eMachines laptops are very Linux-friendly, have a widescreen aspect > ratio (1280x800) and are very cheap despite being very powerful. eMachines have been extremely unhelpful in some cases too. When someone pointed out to them they had broken PST tables, they got quite annoyed, and blamed it on "Linux not being a real operating system". Dave ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: Best CPU and Chipset for cpufreq? 2004-01-16 21:01 ` Dave Jones @ 2004-01-16 22:09 ` Carl Thompson 0 siblings, 0 replies; 9+ messages in thread From: Carl Thompson @ 2004-01-16 22:09 UTC (permalink / raw) To: Dave Jones; +Cc: cpufreq [-- Attachment #1: Type: text/plain, Size: 1238 bytes --] Quoting Dave Jones <davej@redhat.com>: > On Fri, Jan 16, 2004 at 11:36:49AM -0800, Carl Thompson wrote: > > My current main laptop is an eMachines M5305 and it has been fantastic. > > It has an Athlon XP 2200+ that can throttle all the way down to 532MHz. > > Interesting, I've received reports that model has broken PST tables. > What BIOS revision do you have ? (dmidecode output would be useful) I'm running the original BIOS that came on the laptop and have had no problems. Everything works fine. (dmidecode output attached.) > > Plus, the eMachines laptops are very Linux-friendly, have a widescreen > > aspect ratio (1280x800) and are very cheap despite being very powerful. > > eMachines have been extremely unhelpful in some cases too. > When someone pointed out to them they had broken PST tables, they got > quite annoyed, and blamed it on "Linux not being a real operating system". Well, I don't seem to have the PST table problem and I think I have their first laptop (?). So perhaps that's a mistake? And, of course, no company that sells machines that cheap is going to have stellar support, but this laptop does seem to be an excellent value anyway (lots of features, good quality and low price). > Dave Carl [-- Attachment #2: dmidecode.txt --] [-- Type: text/plain, Size: 6070 bytes --] # dmidecode 2.2 SMBIOS 2.3 present. 18 structures occupying 684 bytes. Table at 0x000DF010. Handle 0x0000 DMI type 0, 20 bytes. BIOS Information Vendor: Phoenix Version: 0009 Release Date: 03/02/2003 Address: 0xE5F40 Runtime Size: 106688 bytes ROM Size: 512 kB Characteristics: ISA is supported PCI is supported PC Card (PCMCIA) is supported PNP is supported APM is supported BIOS is upgradeable BIOS shadowing is allowed ESCD support is available Boot from CD is supported Selectable boot is supported BIOS ROM is socketed ACPI is supported USB legacy is supported AGP is supported Smart battery is supported BIOS boot specification is supported Function key-initiated network boot is supported Handle 0x0001 DMI type 1, 25 bytes. System Information Manufacturer: eMachines. Inc. Product Name: M5305 Version: 0009 Serial Number: N7036 100 00785 UUID: 80C20E72-DD63-0010-A787-7F0F04138EC7 Wake-up Type: Power Switch Handle 0x0002 DMI type 2, 8 bytes. Base Board Information Manufacturer: Arima Product Name: W720K7 Version: KBC Revision: 1911 Serial Number: None Handle 0x0003 DMI type 3, 17 bytes. Chassis Information Manufacturer: Arima Type: Notebook Lock: Not Present Version: N/A Serial Number: None Asset Tag: Boot-up State: Unknown Power Supply State: Unknown Thermal State: Unknown Security Status: Unknown OEM Information: 0x00001234 Handle 0x0004 DMI type 4, 32 bytes. Processor Information Socket Designation: U23 Type: Central Processor Family: Athlon Manufacturer: AuthenticAMD ID: 81 06 00 00 FF F9 83 03 Signature: Type 0, Family 6, Model 8, Stepping 1 Flags: FPU (Floating-point unit on-chip) VME (Virtual mode extension) DE (Debugging extension) PSE (Page size extension) TSC (Time stamp counter) MSR (Model specific registers) PAE (Physical address extension) MCE (Machine check exception) CX8 (CMPXCHG8 instruction supported) SEP (Fast system call) MTRR (Memory type range registers) PGE (Page global enable) MCA (Machine check architecture) CMOV (Conditional move instruction supported) PAT (Page attribute table) PSE-36 (36-bit page size extension) MMX (MMX technology supported) FXSR (Fast floating-point save and restore) SSE (Streaming SIMD extensions) Version: Mobile AMD Athlon(tm) XP processor 2200+ Voltage: 1.4 V External Clock: 133 MHz Max Speed: 1800 MHz Current Speed: 1800 MHz Status: Populated, Enabled Upgrade: ZIF Socket L1 Cache Handle: 0x0005 L2 Cache Handle: 0x0006 L3 Cache Handle: Not Provided Handle 0x0005 DMI type 7, 19 bytes. Cache Information Socket Designation: L1 Cache Configuration: Enabled, Not Socketed, Level 1 Operational Mode: Write Back Location: Internal Installed Size: 128 KB Maximum Size: 128 KB Supported SRAM Types: Burst Pipeline Burst Installed SRAM Type: Synchronous Speed: Unknown Error Correction Type: Parity System Type: Other Associativity: 4-way Set-associative Handle 0x0006 DMI type 7, 19 bytes. Cache Information Socket Designation: L2 Cache Configuration: Enabled, Socketed, Level 2 Operational Mode: Write Back Location: Internal Installed Size: 256 KB Maximum Size: 256 KB Supported SRAM Types: Burst Pipeline Burst Installed SRAM Type: Synchronous Speed: Unknown Error Correction Type: Unknown System Type: Other Associativity: Unknown Handle 0x0007 DMI type 16, 15 bytes. Physical Memory Array Location: System Board Or Motherboard Use: Flash Memory Error Correction Type: None Maximum Capacity: 512 kB Error Information Handle: Not Provided Number Of Devices: 1 Handle 0x0008 DMI type 16, 15 bytes. Physical Memory Array Location: System Board Or Motherboard Use: System Memory Error Correction Type: None Maximum Capacity: 1 GB Error Information Handle: Not Provided Number Of Devices: 2 Handle 0x0009 DMI type 17, 23 bytes. Memory Device Array Handle: 0x0008 Error Information Handle: Not Provided Total Width: 64 bits Data Width: 64 bits Size: 512 MB Form Factor: DIMM Set: 1 Locator: U5 Bank Locator: Bank 0 Type: DRAM Type Detail: Synchronous Speed: 266 MHz (3.8 ns) Handle 0x000A DMI type 17, 23 bytes. Memory Device Array Handle: 0x0008 Error Information Handle: Not Provided Total Width: 64 bits Data Width: 64 bits Size: 256 MB Form Factor: DIMM Set: 1 Locator: U6 Bank Locator: Bank 1 Type: DRAM Type Detail: Synchronous Speed: 266 MHz (3.8 ns) Handle 0x000B DMI type 17, 23 bytes. Memory Device Array Handle: 0x0007 Error Information Handle: Not Provided Total Width: 16 bits Data Width: 16 bits Size: 512 kB Form Factor: Chip Set: None Locator: System Board Bank Locator: Null Type: Flash Type Detail: Non-Volatile Speed: 8 MHz (125.0 ns) Handle 0x000C DMI type 19, 15 bytes. Memory Array Mapped Address Starting Address: 0x00000000000 Ending Address: 0x000000003FF Range Size: 1 kB Physical Array Handle: 0x0008 Partition Width: 0 Handle 0x000D DMI type 19, 15 bytes. Memory Array Mapped Address Starting Address: 0x00000000000 Ending Address: 0x000000003FF Range Size: 1 kB Physical Array Handle: 0x0008 Partition Width: 0 Handle 0x000E DMI type 20, 19 bytes. Memory Device Mapped Address Starting Address: 0x00000000000 Ending Address: 0x000000003FF Range Size: 1 kB Physical Device Handle: 0x0009 Memory Array Mapped Address Handle: 0x000C Partition Row Position: 1 Handle 0x000F DMI type 20, 19 bytes. Memory Device Mapped Address Starting Address: 0x00000000000 Ending Address: 0x000000003FF Range Size: 1 kB Physical Device Handle: 0x000A Memory Array Mapped Address Handle: 0x000D Partition Row Position: 1 Handle 0x0010 DMI type 32, 20 bytes. System Boot Information Status: <OUT OF SPEC> Handle 0x0011 DMI type 127, 4 bytes. End Of Table [-- Attachment #3: Type: text/plain, Size: 143 bytes --] _______________________________________________ Cpufreq mailing list Cpufreq@www.linux.org.uk http://www.linux.org.uk/mailman/listinfo/cpufreq ^ permalink raw reply [flat|nested] 9+ messages in thread
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2004-01-14 16:39 Best CPU and Chipset for cpufreq? Jesper Anderson
2004-01-14 17:18 ` Juan M. Duran
2004-01-14 19:22 ` Jesper Anderson
[not found] ` <20040114204934.GA18333@piout.net>
2004-01-14 21:54 ` Jesper Anderson
[not found] ` <20040114221840.GA16987@piout.net>
2004-01-14 22:42 ` Jesper Anderson
2004-01-15 16:27 ` Ducrot Bruno
2004-01-16 19:36 ` Carl Thompson
2004-01-16 21:01 ` Dave Jones
2004-01-16 22:09 ` Carl Thompson
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