Re: slow eMMC write speed

2011-10-20 Thread Praveen G K
2011/10/20 Andrei E. Warkentin andrey.warken...@gmail.com: 2011/10/19 Praveen G K praveen...@gmail.com: Also, can somebody please tell me the significance of blk_end_request? Thanks. Why do we call this after every block read or write? Because you want to update the struct request

Re: slow eMMC write speed

2011-10-20 Thread Praveen G K
2011/10/20 Andrei Warkentin awarken...@vmware.com: - Original Message - From: Praveen G K praveen...@gmail.com To: Andrei E. Warkentin andrey.warken...@gmail.com Cc: J Freyensee james_p_freyen...@linux.intel.com, Andrei Warkentin awarken...@vmware.com, Per Förlin per.for

Re: slow eMMC write speed

2011-10-19 Thread Praveen G K
Also, can somebody please tell me the significance of blk_end_request? Thanks. Why do we call this after every block read or write? 2011/10/4 Andrei E. Warkentin andrey.warken...@gmail.com Hi James, 2011/10/3 J Freyensee james_p_freyen...@linux.intel.com: The idea is the page cache is too

Re: slow eMMC write speed

2011-09-28 Thread Praveen G K
On Tue, Sep 27, 2011 at 10:42 PM, Linus Walleij linus.wall...@linaro.org wrote: On Fri, Sep 23, 2011 at 7:05 AM, Praveen G K praveen...@gmail.com wrote: I am working on the block driver module of the eMMC driver (SDIO 3.0 controller).  I am seeing very low write speed for eMMC transfers

Re: slow eMMC write speed

2011-09-28 Thread Praveen G K
On Wed, Sep 28, 2011 at 12:59 PM, J Freyensee james_p_freyen...@linux.intel.com wrote: On 09/28/2011 12:06 PM, Praveen G K wrote: On Tue, Sep 27, 2011 at 10:42 PM, Linus Walleij linus.wall...@linaro.org  wrote: On Fri, Sep 23, 2011 at 7:05 AM, Praveen G Kpraveen...@gmail.com  wrote: I am

Re: slow eMMC write speed

2011-09-28 Thread Praveen G K
On Wed, Sep 28, 2011 at 2:01 PM, J Freyensee james_p_freyen...@linux.intel.com wrote: On 09/28/2011 01:34 PM, Praveen G K wrote: On Wed, Sep 28, 2011 at 12:59 PM, J Freyensee james_p_freyen...@linux.intel.com  wrote: On 09/28/2011 12:06 PM, Praveen G K wrote: On Tue, Sep 27, 2011 at 10:42

Re: slow eMMC write speed

2011-09-28 Thread Praveen G K
On Wed, Sep 28, 2011 at 2:34 PM, J Freyensee james_p_freyen...@linux.intel.com wrote: On 09/28/2011 02:03 PM, Praveen G K wrote: On Wed, Sep 28, 2011 at 2:01 PM, J Freyensee james_p_freyen...@linux.intel.com  wrote: On 09/28/2011 01:34 PM, Praveen G K wrote: On Wed, Sep 28, 2011 at 12:59

Re: slow eMMC write speed

2011-09-28 Thread Praveen G K
On Wed, Sep 28, 2011 at 3:59 PM, J Freyensee james_p_freyen...@linux.intel.com wrote: On 09/28/2011 03:24 PM, Praveen G K wrote: On Wed, Sep 28, 2011 at 2:34 PM, J Freyensee james_p_freyen...@linux.intel.com  wrote: On 09/28/2011 02:03 PM, Praveen G K wrote: On Wed, Sep 28, 2011 at 2:01 PM

Re: slow eMMC write speed

2011-09-28 Thread Praveen G K
On Wed, Sep 28, 2011 at 5:57 PM, Philip Rakity prak...@marvell.com wrote: On Sep 28, 2011, at 4:16 PM, Praveen G K wrote: On Wed, Sep 28, 2011 at 3:59 PM, J Freyensee james_p_freyen...@linux.intel.com wrote: On 09/28/2011 03:24 PM, Praveen G K wrote: On Wed, Sep 28, 2011 at 2:34 PM, J

slow eMMC write speed

2011-09-22 Thread Praveen G K
Hello all, I am working on the block driver module of the eMMC driver (SDIO 3.0 controller). I am seeing very low write speed for eMMC transfers. On further debugging, I observed that every 63rd and 64th transfer takes a long time. I have tabulated this by noting the time interval between when