iMX6 is slower than ZYNQ(xilinx). Somebody please help me.

erik2 — Tue, 29 Jan 2019 13:54:50 GMT

hi~!

I have three boards.

1. EVM imx6q-sabresd. quad core 1GHz, DDR3 1GB 533MHz. kernel 4.9.xxx ga kernel

2. EVM xilinx zynq , dual core 866Mhz, DDR3 1GB 533MHz. kernel 4.4.....

3. custom design board imx6DL dual core 1GHz,DDR3 1GB 400MHz.kernel 4.9.xxx ga kernel

I ran the attached program and measured lap times.

condition. CPU Governor = performance, DVFS = disable, root=/dev/ram0

1. imx6q, avg. 96.. sec (evm sdcard image, )

2. zynq, avg. 75.. sec

3. imx6dl avg. 110.. sec

condition. CPU Governor = performance, DVFS = enable, root=/dev/ram0

1. imx6q, avg. 96.. sec

2. zynq, avg. 75.. sec

3. imx6dl. avg. 110.. sec

I think that Imx6 should have a shorter lap time than ZINQ.

I do not know why this results.

I made a lot of trial and error to reduce the lap time of imx6.

Now, I do not know what to do to reduce imx6's lap time.

I want to be helped on this matter.

Q1. How much is the lap time on your board??

Please run "test_cputest.o" on the attachment from the board and let us know the lab time.

Q2. If your board has a lap time of less than 80~70 sec, Help me with any special way to improve CPU performance.

There are three attachments. Attachments are source, executable and kernel config.

Please help me~~~!

Re: iMX6 is slower than ZYNQ(xilinx). Somebody please help me.

igorpadykov — Tue, 29 Jan 2019 23:26:02 GMT

Hi ym

please check

https://community.nxp.com/docs/DOC-94571

try with Demo Images from link

i.MX Software|NXP

Best regards
igor
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topic Re: iMX6 is slower than ZYNQ(xilinx). Somebody please help me. in i.MX Processors

iMX6 is slower than ZYNQ(xilinx). Somebody please help me.

Re: iMX6 is slower than ZYNQ(xilinx). Somebody please help me.