Hi,
these are my test results for the hdd speed with the Marvel PMP MV88SM9602:
Driver information:
hdparm -I /dev/sda
/dev/sda:
ATA device, with non-removable media
Model Number: WD10JPVT-00MS8T0
Serial Number: WD-WXB1A1356953
Firmware Revision:
Standards:
Supported: 9 8 7 6
Likely used: 9
Configuration:
Logical max current
cylinders 16383 16383
heads 16 16
sectors/track 63 63
--
CHS current addressable sectors: 16514064
LBA user addressable sectors: 268435455
LBA48 user addressable sectors: 1953525168
device size with M = 1024*1024: 953869 MBytes
device size with M = 1000*1000: 1000204 MBytes (1000 GB)
Capabilities:
LBA, IORDY(can be disabled)
Queue depth: 32
Standby timer values: spec'd by standard, with device specific
minimum
R/W multiple sector transfer: Max = 16 Current = 0
AdvancedPM level: unknown setting (0x0060)
DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5 *udma6
Cycle time: min=120ns recommended=120ns
PIO: pio0 pio1 pio2 pio3 pio4
Cycle time: no flow control=120ns IORDY flow control=120ns
Commands/features:
Enabled Supported:
* NOP cmd
* READ BUFFER cmd
* WRITE BUFFER cmd
* Host Protected Area feature set
* Look-ahead
* Write cache
* Power Management feature set
Security Mode feature set
* SMART feature set
* FLUSH CACHE EXT cmd
* Mandatory FLUSH CACHE cmd
* Device Configuration Overlay feature set
* 48-bit Address feature set
SET MAX security extension
* SET FEATURES subcommand required to spinup after power up
Power-Up In Standby feature set
* Adv. Power Management feature set
* DOWNLOAD MICROCODE cmd
* General Purpose Logging feature set
* SMART self-test
* SMART error logging
Security:
Master password revision code = 65534
supported
not enabled
not locked
not frozen
not expired: security count
supported: enhanced erase
178min for SECURITY ERASE UNIT. 178min for ENHANCED SECURITY ERASE
UNIT.
Checksum: correct
Speed tests (reading):
# hdparm -tT /dev/sda
/dev/sda:
Timing buffer-cache reads: 348 MB in 0.51 seconds = 695658 kB/s
Timing buffered disk reads: 294 MB in 3.00 seconds = 100205 kB/s
#
time dd if=tempfile of=/dev/null bs=1M count=1024
1024+0 records in
1024+0 records out
real 0m 18.84s
user 0m 0.03s
sys 0m 5.68s
Writing:
time dd if=/dev/zero of=tempfile bs=1M count=1024 conv=fsync,notrunc
1024+0 records in
1024+0 records out
real 1m 33.33s
user 0m 0.02s
sys 0m 6.21s
If you need some special test (we don't use raid for example) ask - i'll
perform these tests if possible.
Tobias
Am Donnerstag, 25. Dezember 2014 12:01:34 UTC+1 schrieb Tobias Andresen:
>
> Yes, thats right. Forgot this to mention. Our custom A20 board has always
> a port multiplier on it.
>
> 2014-12-25 10:59 GMT+01:00 Hans de Goede <[email protected]>:
>
>> Hi,
>>
>> On 25-12-14 10:48, [email protected] wrote:
>>
>>> I'll check this on Monday and post the results.
>>>
>>
>> 3.19 has this patch:
>>
>> https://git.kernel.org/cgit/linux/kernel/git/torvalds/
>> linux.git/commit/drivers/ata/ahci_sunxi.c?id=
>> 35c16a8f0b994461d49ce2479c67903f95045159
>>
>> Which allows you to specify ahci_sunxi.enable_pmp=1 on the kernel
>> commandline for use with port multipliers.
>>
>> I've been running my own tests with a port multiplier, and the reason why
>> the original allwinner code has the AHCI_HFLAG_NO_PMP flag is because
>> while port multipliers will work without it, normal disks will break if
>> that flag is not set. So I've added a module option which
>> will remove the flag when set for use with port multipliers.
>>
>> Regards,
>>
>> Hans
>>
>>
>>
>>> Am Mittwoch, 24. Dezember 2014 15:37:26 UTC+1 schrieb arete74:
>>>
>>>>
>>>> hi, you can report the speed transfer with sata pm?
>>>>
>>>> regards
>>>>
>>>> 2014-12-23 22:03 GMT+01:00 <[email protected] <javascript:>>:
>>>>
>>>> The A20 supports PMP, just remove the Flag AHCI_HFLAG_NO_PMP in the
>>>>> sunxi
>>>>> ahci driver.
>>>>> Please take a look in the Manual of the A20 (6.15.1). The SATA
>>>>> interface
>>>>> has the following specification:
>>>>> Comply with SATA Spec. 2.6, and AHCI Revision 1.3 specifications
>>>>>
>>>>> This includes the PMP support.
>>>>>
>>>>> We are using a Marvel PMP and it works fine - both disks are detected
>>>>> and
>>>>> work.
>>>>>
>>>>> Regards
>>>>>
>>>>> Tobias
>>>>>
>>>>> Am Dienstag, 23. Dezember 2014 11:55:58 UTC+1 schrieb bruce bushby:
>>>>>
>>>>>
>>>>>>
>>>>>> Any progress on this? I found this thread:
>>>>>> http://forum.lemaker.org/thread-9207-1-1-.html
>>>>>>
>>>>>> Which states:
>>>>>> "....the patch seems to work with the latest 3.18 kernel from
>>>>>> Torvalds'
>>>>>> git (3.18.0.-rc5) possibly with some earlier versions..."
>>>>>>
>>>>>>
>>>>>> 1. [ 1.735879] ata1: SATA link up 3.0 Gbps (SStatus 123
>>>>>> SControl
>>>>>> 300)
>>>>>> 2. [ 1.742372] ata1.15: Port Multiplier 1.2, 0x197b:0x0325 r0,
>>>>>> 5
>>>>>> ports, feat 0x5/0xf
>>>>>>
>>>>>>
>>>>>>
>>>>>> But apparently it's very slow ...although no figures given. Guess
>>>>>> there
>>>>>> is also the fear of data corruption given the lack of uptake/testing
>>>>>> of
>>>>>> AllWinner PMP
>>>>>>
>>>>>>
>>>>>> Bruce
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Monday, 5 May 2014 22:22:48 UTC+1, hase nase wrote:
>>>>>>
>>>>>>>
>>>>>>> Hi,
>>>>>>>
>>>>>>> is it possible to use an sata multiplier with a A20 ? I tried it on a
>>>>>>> cubieboard, but i only got access to sda and no other connected drive
>>>>>>>
>>>>>>> --
>>>>>>
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>>>>>
>>>>>
>>>>
>>>>
>>>
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>
>
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