Re: [Yaffs] yaffs2 read pages support for OneNAND/FlexOneNAN…

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著者: Amit Kumar Sharma
日付:  
To: zheng shi, YAFFS
CC: manningc2
題目: Re: [Yaffs] yaffs2 read pages support for OneNAND/FlexOneNAND
Hi Zheng,


> On 2008-12-11 10:37, Amit Kumar Sharma wrote:
>> Hi Folks
>>
>> Around Two months before we have released a patch for
>> Yaffs2_readpages support for OneNand Flash and
>> FlexOneNAND
>> flash , But we have not received any comment from yaffs
>> mailing list, I will be greatly thankful to you guys if
>> you
>> can provide us your review comment, We were expecting our
>> patch will be merged to Yaffs2 because by using read
>> pages,
>> User of OneNAND and FlexOneNAND can get very good
>> performance gain.
>>
>>
>> Below is link for for patch release by our group.
>> http://lists.aleph1.co.uk/lurker/message/20080925.133205.cc2a4b65.en.html
>>
>> I will bee thankful atleast charles can provide feed
>> back
>> to us.
>>
>> Thanks
>> Amit
>>
>>
>
> I'm very interested in your multi-page read patch, though
> I have no
> OneNAND at hand.
>
> As you stated "OneNAND flash can read multiple flash pages
> faster.
> So, there is significant improvement in read speed
> with this feature. ", would you please tell me how much do
> you get from this?

We have around 20% performance gain by this implementation
.We also implemented readpages for jffs2 that also has
around 20% performance gain.
>
> BR, neversetsun