Re: ARM11 MPCore with Linux is slower than ARM9 with OSE
Nagendra <[email protected]> Tue, 12 Apr 2011 01:16:01 -0700 (PDT)
| Newsgroups | gmane.linux.ports.arm.general |
|---|---|
| Message-ID | <[email protected]> |
The first thing I would check is the clock frequencies at which you have configured ARM9 and ARM11. --- On Thu, 3/17/11, Bhattiprolu RaviKumar <[email protected]> wrote: From: Bhattiprolu RaviKumar <[email protected]> Subject: ARM11 MPCore with Linux is slower than ARM9 with OSE To: [email protected] Date: Thursday, March 17, 2011, 3:43 PM Hi All, I am working on porting some code from ARM9 (without MMU) with OSE to ARM11 MPCore with Linux. This particular code reads and writes data from a peripheral registers two bytes at a time. This register is memory mapped to ARM address space. Even after moving the code to Kernel on ARM11, it runs very slow compared to similar code on ARM9 with OSE. All the branch predictions are enabled in ARM11. Any pointers on what is going wrong here? regards, Ravi -----Inline Attachment Follows----- _______________________________________________ linux-arm mailing list [email protected] http://lists.infradead.org/mailman/listinfo/linux-arm _______________________________________________ linux-arm mailing list [email protected] http://lists.infradead.org/mailman/listinfo/linux-arm