Hi Roman:
Sorry for the long delay, I had to fix some other stuff first, before I could
launch the test... Here is just a short intermediate result.
Am 04.02.10 20:35 schrieb(en) Albrecht Dreß:
Actually, I forgot that I have to explicitly enable libata dma on the 5200b,
due to the known
Hi Roman:
Am 03.02.10 07:16 schrieb(en) Roman Fietze:
Sorry for the delay ... your mail got stuck in a Notes spam filter.
Never mind. I didn't know yet that I'm *such* a nasty guy... ;-)
Are you using MWDMA2 with the compact flash cards? What is the load on the
different (DMA) channels?
Hello Albrecht,
Sorry for the delay ... your mail got stuck in a Notes spam filter.
On Friday 22 January 2010 21:11:39 Albrecht Dreß wrote:
Are there any final conclusions from your tests?
Yes.
For the small product using the 2.6 kernel we turned all snooping and
the kernel coherent flag
Hi Roman:
Am 16.12.09 12:37 schrieb(en) Roman Fietze:
The board is using the MPC5200B on a board derived from the old lite5200, but with the fixes for the MPC5200B. All tests are run using an ST940813AM hard drive with an ext2 and an ext3 of 10GB each, default mkfs options. The OS is Debian 4.0.
Roman Fietze wrote:
Hello Wolfram,
On Wednesday 09 December 2009 15:57:48 Wolfram Sang wrote:
Do you have a way to measure performance penalties?
As I said, I do.
And here they are. They won't win a price for the most impartial
benchmarks ever seen, but thet'll be a good starting
Hello Wolfgang,
On Friday 18 December 2009 09:24:29 Wolfgang Grandegger wrote:
What disc access modes, (pio, mwdma or udma) did you use for these tests.
MWDMA2.
On our hardware Linux 2.6 UDMA2 only works with very few disks. And on
top of that, UDMA seems to have problems on the MPC5200B with
Hello Wolfram,
On Wednesday 09 December 2009 15:57:48 Wolfram Sang wrote:
Do you have a way to measure performance penalties?
As I said, I do.
And here they are. They won't win a price for the most impartial
benchmarks ever seen, but thet'll be a good starting point to get a
feeling what
Hallo,
I had a discussion with some Freescale support people about the
constant RFIFO Event errors or PATA hard disk crashes when stressing a
board with (very) high loads, in my case even with some additional
traffic from an FPGA (or just the FLASH) via the SCLPC FIFO using the
BestComm.
The
Hello Roman,
I would be interested in your opinion, maybe Wolfgang could make some
comments, because he is involved in the U-Boot a lot as well.
Do you have a way to measure performance penalties? I know that stability comes
before performance, still I am wondering as it looks to me that the
Hello Wolfram,
On Wednesday 09 December 2009 15:57:48 Wolfram Sang wrote:
Do you have a way to measure performance penalties?
Yes, I do. I am using an SCLPC test driver derived from a driver
written or posted by Grant Likely named mpc5200-localplus-test. This
gives me some useful output about
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