Re: [PATCH 0/5] arm: shmobile: Lager Add USB and SATA support

[Ryusuke Sakato <ryusuke.sakato.bx@renesas.com>]

Hi Hiep-san,


I believe that I should unite the conditions of the performance test of "CONFIG_CPU_FREQ is not set" on Upstream-v3.16-rc5,
 and "CONFIG_CPU_FREQ=y" on uptream-v3.17-rc2.


> # cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
> ondemand

In order that you may not be subject to the influence of cpufreq, you should change
 "CONFIG_CPU_FREQ is not set", or should perform the following setup.

　echo -n performance > /sys/device/system/cpu/cpu0/cpufreq/scaling_governor
　echo -n performance > /sys/device/system/cpu/cpu1/cpufreq/scaling_governor
　echo -n performance > /sys/device/system/cpu/cpu2/cpufreq/scaling_governor
　echo -n performance > /sys/device/system/cpu/cpu3/cpufreq/scaling_governor


Thank you,
Sakato.




(2014/09/10 14:18), カオ　ミン　ヒェップ wrote:
> Hi Sakato-san
> 
> Thanks for your comment.
> 
> On 09/10/2014 10:21 AM, Ryusuke Sakato wrote:
>> Hi Hiep-san,
>>
>> Can you check as CONFIG_CPU_FREQ is not set?
>>
>> When you perform a benchmark, you should check a /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
>> setup of your userland.
> CONFIG_CPU_FREQ=y on default config,
> And I have just checked /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
> 
> Before writing:
> # cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
> ondemand
> just after writing:
> #cp /tmp/file-350mb /mnt/ ; cat /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor
> ondemand
> 
> 
> Best regards,
> Cao Minh Hiep
> 
>> Thank you,
>> Sakato.
>>
>> (2014/09/09 19:48), カオ　ミン　ヒェップ wrote:
>>> Hello,
>>>
>>> We are testing Serial-ATA driver on linux uptream-v3.17-rc2 on Lager(R8a7790 SoC),
>>> On this version Serial-ATA's Writing speed on HDD is about 42.61MB/s.
>>> This writing speed|| seems good, but on Upstream-v3.16-rc5 the writing speed was up to 66MB/s,
>>> Please see it when you have time.
>>>
>>> Best Regards,
>>> Jinso/Cao Minh Hiep.
>>>
>>>
>>>
>>>
>>>
>>>
>>> On 12/18/2013 09:44 PM, Valentine Barshak wrote:
>>>> I've decided to bundle USB and SATA patches together, since I've done SATA on top of USB.
>>>> Most of the SATA/USBHS/PCI USB host support patches for Lager are available in the respective
>>>> susbsystem git trees (for 3.14) but are still missing from the Renesas tree.
>>>>
>>>> So, in order to test these, the following patches from other subsystem trees are needed:
>>>> USB:
>>>> https://git.kernel.org/cgit/linux/kernel/git/helgaas/pci.git/commit/?h=pci/host-rcar&idû178d8b2fab3f2a9f203c13ffe80cfd6e01bdf1
>>>>
>>>> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?idÈba8115a21226fba3211085f570b128fa271e31
>>>> https://git.kernel.org/cgit/linux/kernel/git/balbi/usb.git/commit/?h=next&idÃe5d2985ef720cbbdc63546a5c545ac4450d96e
>>>> https://git.kernel.org/cgit/linux/kernel/git/gregkh/usb.git/commit/?h=usb-next&id\x103e127d1f8f985e8a662da6537ebc5e08902ee3
>>>> https://git.kernel.org/cgit/linux/kernel/git/gregkh/usb.git/commit/?h=usb-next&id\x1ae5799ef63176cc75ec10e545cb65f620a82747
>>>>
>>>> SATA:
>>>> https://git.kernel.org/cgit/linux/kernel/git/tj/libata.git/commit/?h=for-3.14&idæ7adb4e669db834c1f95cbdf99bb4e9ec8455b3
>>>>
>>>> The USB channel 0 (CN6) is configured as PCI USB host if USB_RENESAS_USBHS_UDC is disabled.
>>>> Otherwise it is configured as USBHS device.
>>>> Please note that the following switches have to be set correctly as well:
>>>> PCI USB Host: SW5 - pin1;    SW6 - pin1
>>>> USBHS device: SW5 - neutral; SW6 - pin3
>>>>
>>>> Valentine Barshak (5):
>>>>     arm: shmobile: r8a7790: Add PCI USB host clock support
>>>>     arm: shmobile: r8a7790: Add SATA clock
>>>>     arm: shmobile: lager: Add USBHS support
>>>>     arm: shmobile: lager: Add internal PCI support
>>>>     arm: shmobile: lager: Add SATA support
>>>>
>>>>    arch/arm/mach-shmobile/board-lager.c   | 203 +++++++++++++++++++++++++++++++++
>>>>    arch/arm/mach-shmobile/clock-r8a7790.c |  25 +++-
>>>>    2 files changed, 227 insertions(+), 1 deletion(-)
>>>>
>>>
>>
> 
> .
>