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Thread: CPU Frequency slow down

  1. #1
    Join Date
    Apr 2010
    Beans
    4

    Unhappy CPU Frequency slow down

    Hi all, I compiled a kernel, eliminating a large number of modules and otherwise in order to optimize the boot time, but I feel slower.

    I have checked with the command "lshw" and compared it with the previous result, I found that there are the following changes:

    Code:
    *-cpu
              description: CPU
              product: Intel(R) Core(TM)2 Duo CPU     T5750  @ 2.00GHz
              vendor: Intel Corp.
              physical id: 400
              bus info: cpu@0
              slot: Microprocessor
              size: 2GHz
              capacity: 2GHz
              width: 64 bits
              clock: 166MHz
              capabilities: fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx x86-64 constant_tsc arch_perfmon pebs bts rep_good aperfmperf pni dtes64 monitor ds_cpl est tm2 ssse3 cx16 xtpr pdcm lahf_lm cpufreq
    
               *-generic:0
                    description: SD Host controller
                    product: R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter
                    vendor: Ricoh Co Ltd
                    physical id: 9.1
                    bus info: pci@0000:03:09.1
                    version: 22
                    width: 32 bits
                    clock: 33MHz
                    capabilities: pm bus_master cap_list
                    configuration: driver=sdhci-pci latency=64
                    resources: irq:18 memory:f1bff400-f1bff4ff
               *-generic:1
                    description: System peripheral
                    product: R5C592 Memory Stick Bus Host Adapter
                    vendor: Ricoh Co Ltd
                    physical id: 9.2
                    bus info: pci@0000:03:09.2
                    version: 12
                    width: 32 bits
                    clock: 33MHz
                    capabilities: pm bus_master cap_list
                    configuration: driver=ricoh-mmc latency=64
                    resources: irq:5 memory:f1bff500-f1bff5ff
               *-generic:2 UNCLAIMED
                    description: System peripheral
                    product: xD-Picture Card Controller
                    vendor: Ricoh Co Ltd
                    physical id: 9.3
                    bus info: pci@0000:03:09.3
                    version: 12
                    width: 32 bits
                    clock: 33MHz
                    capabilities: pm bus_master cap_list
                    configuration: latency=64
                    resources: memory:f1bff600-f1bff6ff
               *-generic:3 UNCLAIMED
                    product: Illegal Vendor ID
                    vendor: Illegal Vendor ID
                    physical id: 9.4
                    bus info: pci@0000:03:09.4
                    version: ff
                    width: 32 bits
                    clock: 66MHz
                    capabilities: bus_master vga_palette cap_list
                    configuration: latency=255 maxlatenc
    
      *-network DISABLED
           description: Ethernet interface
           physical id: 2
           logical name: vboxnet0
           serial: 0a:00:27:00:00:00
           capabilities: ethernet physical
           configuration: broadcast=yes multicast=yes
    Code:
    *-cpu
              description: CPU
              product: Intel(R) Core(TM)2 Duo CPU     T5750  @ 2.00GHz
              vendor: Intel Corp.
              physical id: 400
              bus info: cpu@0
              slot: Microprocessor
              size: 1GHz
              capacity: 2GHz
              width: 64 bits
              clock: 166MHz
              capabilities: fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx x86-64 constant_tsc arch_perfmon pebs bts rep_good aperfmperf pni dtes64 monitor ds_cpl est tm2 ssse3 cx16 xtpr pdcm lahf_lm cpufreq
    
               *-generic:0
                    description: SD Host controller
                    product: R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter
                    vendor: Ricoh Co Ltd
                    physical id: 9.1
                    bus info: pci@0000:03:09.1
                    version: 22
                    width: 32 bits
                    clock: 33MHz
                    capabilities: pm bus_master cap_list
                    configuration: driver=sdhci-pci latency=64
                    resources: irq:18 memory:f1bff500-f1bff5ff
               *-generic:1 UNCLAIMED
                    description: System peripheral
                    product: R5C592 Memory Stick Bus Host Adapter
                    vendor: Ricoh Co Ltd
                    physical id: 9.2
                    bus info: pci@0000:03:09.2
                    version: 12
                    width: 32 bits
                    clock: 33MHz
                    capabilities: pm bus_master cap_list
                    configuration: latency=64
                    resources: memory:f1bff600-f1bff6ff
               *-generic:2 UNCLAIMED
                    description: System peripheral
                    product: xD-Picture Card Controller
                    vendor: Ricoh Co Ltd
                    physical id: 9.3
                    bus info: pci@0000:03:09.3
                    version: 12
                    width: 32 bits
                    clock: 33MHz
                    capabilities: pm bus_master cap_list
                    configuration: latency=64
                    resources: memory:f1bff700-f1bff7ff
    
      *-network:0 DISABLED
           description: Ethernet interface
           physical id: 2
           logical name: ifb0
           serial: be:3e:88:7a:8d:f6
           capabilities: ethernet physical
           configuration: broadcast=yes
      *-network:1 DISABLED
           description: Ethernet interface
           physical id: 3
           logical name: ifb1
           serial: 6e:41:c2:ea:e2:a6
           capabilities: ethernet physical
           configuration: broadcast=yes
    Sorry for my english and thank for help.
    Last edited by Moonlext; July 19th, 2010 at 09:51 PM. Reason: Update format

  2. #2
    Join Date
    Apr 2010
    Beans
    4

    Re: CPU Frequency slow down

    Ok, I fixed that disabling "CPU Frequency Scaling" option in menuconfig.

    Thanks.

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