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My RPi 3 Gives wrong Info or Not?

Posted: Thu Mar 03, 2016 9:40 am
by AlwinHummels
I have a strange issue, yesterday I've got my new RPi 3 and I Installed OpenElec 6.0.3. on it so far so good.
But when I'm Looking at the Hardware Information on Kodi I got This:

CPU: ARMv7 Procesor rev 4(v7.I)
BoGoMips: 76.00
Hardware: BCM2709
Revision: a02082
Serial:***************
CPU temperature: 82 C
CPU speed: 1200

CPU speed is right but CPU and Hardware NOT imo
This is what it should be:
Quad-core 1200MHz 64bit ARMv8-processor (BCM2837 chipset)
or am I wrong here?
Is this a OpenElec Issue or Do I have a wrong RPi3?

Re: My RPi 3 Gives wrong Info or Not?

Posted: Thu Mar 03, 2016 12:06 pm
by drgeoff
If the onboard Wi-Fi is working then your RPi must have a BCM2837.

Re: My RPi 3 Gives wrong Info or Not?

Posted: Thu Mar 03, 2016 12:14 pm
by fruitoftheloom
AlwinHummels wrote:I have a strange issue, yesterday I've got my new RPi 3 and I Installed OpenElec 6.0.3. on it so far so good.
But when I'm Looking at the Hardware Information on Kodi I got This:

CPU: ARMv7 Procesor rev 4(v7.I)
BoGoMips: 76.00
Hardware: BCM2709
Revision: a02082
Serial:***************
CPU temperature: 82 C
CPU speed: 1200

CPU speed is right but CPU and Hardware NOT imo
This is what it should be:
Quad-core 1200MHz 64bit ARMv8-processor (BCM2837 chipset)
or am I wrong here?
Is this a OpenElec Issue or Do I have a wrong RPi3?
I believe from other comments that is correct but confusing, but as long as you get Revision a02082 it is a RPi 3B

Re: My RPi 3 Gives wrong Info or Not?

Posted: Thu Mar 03, 2016 12:23 pm
by RaTTuS
P2

Code: Select all

 cat /proc/cpuinfo
processor       : 0
model name      : ARMv7 Processor rev 5 (v7l)
BogoMIPS        : 38.40
Features        : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm
CPU implementer : 0x41
CPU architecture: 7
CPU variant     : 0x0
CPU part        : 0xc07
CPU revision    : 5

processor       : 1
model name      : ARMv7 Processor rev 5 (v7l)
BogoMIPS        : 38.40
Features        : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm
CPU implementer : 0x41
CPU architecture: 7
CPU variant     : 0x0
CPU part        : 0xc07
CPU revision    : 5

processor       : 2
model name      : ARMv7 Processor rev 5 (v7l)
BogoMIPS        : 38.40
Features        : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm
CPU implementer : 0x41
CPU architecture: 7
CPU variant     : 0x0
CPU part        : 0xc07
CPU revision    : 5

processor       : 3
model name      : ARMv7 Processor rev 5 (v7l)
BogoMIPS        : 38.40
Features        : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm
CPU implementer : 0x41
CPU architecture: 7
CPU variant     : 0x0
CPU part        : 0xc07
CPU revision    : 5

Hardware        : BCM2709
Revision        : a01041
pi 3

Code: Select all

 cat /proc/cpuinfo
processor       : 0
model name      : ARMv7 Processor rev 4 (v7l)
BogoMIPS        : 76.80
Features        : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32
CPU implementer : 0x41
CPU architecture: 7
CPU variant     : 0x0
CPU part        : 0xd03
CPU revision    : 4

processor       : 1
model name      : ARMv7 Processor rev 4 (v7l)
BogoMIPS        : 76.80
Features        : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32
CPU implementer : 0x41
CPU architecture: 7
CPU variant     : 0x0
CPU part        : 0xd03
CPU revision    : 4

processor       : 2
model name      : ARMv7 Processor rev 4 (v7l)
BogoMIPS        : 76.80
Features        : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32
CPU implementer : 0x41
CPU architecture: 7
CPU variant     : 0x0
CPU part        : 0xd03
CPU revision    : 4

processor       : 3
model name      : ARMv7 Processor rev 4 (v7l)
BogoMIPS        : 76.80
Features        : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32
CPU implementer : 0x41
CPU architecture: 7
CPU variant     : 0x0
CPU part        : 0xd03
CPU revision    : 4

Hardware        : BCM2709
Revision        : a02082

Re: My RPi 3 Gives wrong Info or Not?

Posted: Fri Mar 04, 2016 11:17 am
by IanH
I've just dd'd 2016-02-09-raspbian-jessie-lite.img onto a MicroSD, and my Pi 3 gives:

Code: Select all

[email protected]:~ $ cat /proc/cpuinfo 
processor	: 0
model name	: ARMv7 Processor rev 4 (v7l)
BogoMIPS	: 38.40
Features	: half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32 
CPU implementer	: 0x41
CPU architecture: 7
CPU variant	: 0x0
CPU part	: 0xd03
CPU revision	: 4

processor	: 1
model name	: ARMv7 Processor rev 4 (v7l)
BogoMIPS	: 38.40
Features	: half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32 
CPU implementer	: 0x41
CPU architecture: 7
CPU variant	: 0x0
CPU part	: 0xd03
CPU revision	: 4

processor	: 2
model name	: ARMv7 Processor rev 4 (v7l)
BogoMIPS	: 38.40
Features	: half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32 
CPU implementer	: 0x41
CPU architecture: 7
CPU variant	: 0x0
CPU part	: 0xd03
CPU revision	: 4

processor	: 3
model name	: ARMv7 Processor rev 4 (v7l)
BogoMIPS	: 38.40
Features	: half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32 
CPU implementer	: 0x41
CPU architecture: 7
CPU variant	: 0x0
CPU part	: 0xd03
CPU revision	: 4

Hardware	: BCM2709
Revision	: a02082
Serial		: (mumble)

Re: My RPi 3 Gives wrong Info or Not?

Posted: Fri Mar 04, 2016 11:23 am
by joan
There is an outside possibility that ARMv7 is reported as the powers that be realised that all the GPIO libraries might be broken if ARMv8 was reported.

Re: My RPi 3 Gives wrong Info or Not?

Posted: Fri Mar 04, 2016 11:56 am
by lb
It is perfectly normal that ARMv7 is reported. The CPU is capable of ARMv8, but Raspbian and all other distributions still use a 32 bit ARM kernel and userland. The CPU boots up in 32 bit compatibility mode.

Re: My RPi 3 Gives wrong Info or Not?

Posted: Fri Mar 04, 2016 12:56 pm
by IanH
I was just reporting that I got half the BogoMIPS that @RaTTuS had, which seems a little odd. Using lscpu I get a likely looking:

Code: Select all

Architecture:          armv7l
Byte Order:            Little Endian
CPU(s):                4
On-line CPU(s) list:   0-3
Thread(s) per core:    1
Core(s) per socket:    4
Socket(s):             1
Model name:            ARMv7 Processor rev 4 (v7l)
CPU max MHz:           1200.0000
CPU min MHz:           600.0000
Re. ARMv8, I'm guessing it won't be possible to boot a 64-bit kernel (e.g. one of Linaro's) without support from Broadcom. The start.elf has to magically set up a load of memory data structures and ARM registers before it lets the ARM run kernel.img. I don't quite understand how it does this, but it'll be different between AArch32 and AArch64 ABI's. So almost certainly 64-bit support won't be possible without a new start.elf, which is proprietary BCM code.

Re: My RPi 3 Gives wrong Info or Not?

Posted: Thu Jul 28, 2016 10:31 pm
by wintermute83
Hi everyone,

I just got a pi 3, my goal is to have it running nextcloud and kodi.
I was checking temperatures and found something wierd. No matter how many firefox instances I open simultaneosly cpu freq never goes higher than 800. At idle it sits at 600mhz. Temps are around 57ºC at idle ( room temperature around 32 ).

This is the output of the comands that you suggested to check the cpu.

[email protected]:~ $ cat /proc/cpuinfo
processor : 0
model name : ARMv7 Processor rev 4 (v7l)
BogoMIPS : 51.20
Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part : 0xd03
CPU revision : 4

processor : 1
model name : ARMv7 Processor rev 4 (v7l)
BogoMIPS : 51.20
Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part : 0xd03
CPU revision : 4

processor : 2
model name : ARMv7 Processor rev 4 (v7l)
BogoMIPS : 51.20
Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part : 0xd03
CPU revision : 4

processor : 3
model name : ARMv7 Processor rev 4 (v7l)
BogoMIPS : 51.20
Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part : 0xd03
CPU revision : 4

Hardware : BCM2709
Revision : a22082
Serial: xxxxxxxxxxxxx

Architecture: armv7l
Byte Order: Little Endian
CPU(s): 4
On-line CPU(s) list: 0-3
Thread(s) per core: 1
Core(s) per socket: 4
Socket(s): 1
Model name: ARMv7 Processor rev 4 (v7l)
CPU max MHz: 800.0000
CPU min MHz: 600.0000

Shouldn´t max CPU Mhz be 1200¿
Also I´m getting a maximun of 5Mbits on internet tests when my windows computer gets 15, so I´m worried that this pi 3 could be faulty.

Thanks in advance.

Re: My RPi 3 Gives wrong Info or Not?

Posted: Sun May 07, 2017 2:57 am
by d3m0nkingx
/proc/cpuinfo does not report the cores as ARM Cortex-A53 when running in 32 bit mode for two reasons:

The kernel is a V6 kernel; it is unaware of the V8 architecture so the CPU cores must present themselves in a way compatible with the V6 (Raspberry Pi 1)

Many drivers, libraries, services, utilities, and the kernel itself, use the information in /proc/cpuinfo to determine how to behave.