RE: How to use SPE on MPC8541

Bonjour G=E9rard,

G=E9rard Gu=E9vel wrote:

I don't especially want to see if the bit is set, I just want
to improve the board performance for a Linux application :-).

Do you know where your CPU is spending much of its time?
It looks like a job for OProfile. Support for e500 exists in 2.6.x=20
thanks to the fine folks of Freescale. We appreciate their involvement=20
in OSS community.

To check the performance, I used the Dhrystone 2.1 benchmark=20

I like the lmbench microbenchmark too. It depends on what profile
is your application (instruction mix, library calls, cache usage, =
paging,..)

with the standard glibc (strcpy, strcmp, ...) on one part, and with
the freescale SPE library on the other part (vstrcpy, vstrcmp, ...).

Will the SPE enhanced C library calls will be integrated in Glibc one =
day?=20


Regards,
Stephane