CPU

[PeasleeR]

Didn't I already mention Pentium Ms? Desktop speed on a laptop with efficient power utilization? Currently, AMD has nothing on intel's mobile line... even if you do want to shove a power guzzling monster into your laptop.

Benchmarks:
http://www.x86-secret.com/articles/c...n/dothan-7.htm

The page isn't in English, but you don't need to be able to read the language to interpret the results of the benchmarks. The Dothan core kicks the crap out of everything, even AMD's 64 bit line. As I'm sure you've read, the Pentium M series chips are hardware underclocked when you aren't using them, meaning they consume as little power as possible for while they aren't in use. When it is being used, it scales back up to its normal operating speeds, meaning you get the performance shown in the benchmarks above.

The chip is being blessed on every corner of the web, (except by AMD fanboys,) you can't go wrong with the Pentium M.

Robert Peaslee

[st3v3p]

Hi All,

I built a 2.6.11.6 kernel specifying the Intel Mobile Pentium 4 in "make menuconfig" as:

│ Subarchitecture Type (PC-compatible) ---> │ │
│ │ Processor family (Pentium-4/Celeron(P4-based)/Pentium-4 M/Xeon) ---> │ │
│ │ [ ] Generic x86 support │ │
│ │[*] HPET Timer Support │ │
│ │[*] Symmetric multi-processing support │ │
│ │ (2) Maximum number of CPUs (2-255) │ │
│ │[*] SMT (Hyperthreading) scheduler support │ │
│ │ [ ] Preemptible Kernel │ │
│ │[*] Machine Check Exception │ │
│ │ < > Check for non-fatal errors on AMD Athlon/Duron / Intel Pentium 4 │ │
│ │ [ ] check for P4 thermal throttling interrupt. │ │
│ │ < > Toshiba Laptop support │ │
│ │ < > Dell laptop support │ │
│ │ < > /dev/cpu/microcode - Intel IA32 CPU microcode support │ │
│ │ <M> /dev/cpu/*/msr - Model-specific register support │ │
│ │ <M> /dev/cpu/*/cpuid - CPU information support │ │
│ │ Firmware Drivers ---> │ │
│ │ High Memory Support (4GB) ---> │ │
│ │[*] Allocate 3rd-level pagetables from highmem │ │
│ │ [ ] Math emulation │ │
│ │[*] MTRR (Memory Type Range Register) support │ │
│ │ [ ] Boot from EFI support (EXPERIMENTAL) │ │
│ │[*] Enable kernel irq balancing │ │
│ │[*] Use register arguments (EXPERIMENTAL) │ │



Sorry this looks so messy. Anyway. then after rebooting with the new kernel which has nearly the latest stuff kernel.org is putting out, I get the following when I do a "dmesg|grep CPU" :

Initializing CPU#0
CPU: After generic identify, caps: bfebf9ff 00000000 00000000 00000000 0000459d 00000000 00000000
CPU: After vendor identify, caps: bfebf9ff 00000000 00000000 00000000 0000459d 00000000 00000000
CPU: Trace cache: 12K uops, L1 D cache: 16K
CPU: L2 cache: 1024K
CPU: Hyper-Threading is disabled
CPU: After all inits, caps: bfebf9ff 00000000 00000000 00000080 0000459d 00000000 00000000
Intel machine check reporting enabled on CPU#0.
CPU0: Intel P4/Xeon Extended MCE MSRs (12) available
CPU0: Intel Mobile Intel(R) Pentium(R) 4 CPU 3.20GHz stepping 01
per-CPU timeslice cutoff: 2925.49 usecs.
Brought up 1 CPUs
CPU0 attaching sched-domain:
ACPI: CPU0 (power states: C1[C1] C2[C2] C3[C3])
ACPI: Processor [CPU0] (supports 8 throttling states)
p4-clockmod: P4/Xeon(TM) CPU On-Demand Clock Modulation available

Which indicates I am running on only one of the two cores. I checked with Intel's website and Sony's support and they both confirmed I should be bringing up both. does anybody know something about the Hyperthreading driver that I am missing?

Thanks in advance if you happen to have any hints.

Cheers,
St3v3p[/img]

[loft306]

amd64 if u can afford it!

[techieMoe]

amd64 if u can afford it!

I second that. I've been quite happy with mine.