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PnoT

Maximum CPU override?

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I have 2 x X5675s in my xpenology box and it's only seeing 8 cores total. Is there a way to utilize all cores as these are 6 cores each?

 

[    0.000000] ACPI: NR_CPUS/possible_cpus limit of 8 reached.  Processor 8/0x24 ignored.
[    0.000000] ACPI: NR_CPUS/possible_cpus limit of 8 reached.  Processor 9/0x30 ignored.
[    0.000000] ACPI: NR_CPUS/possible_cpus limit of 8 reached.  Processor 10/0x32 ignored.
[    0.000000] ACPI: NR_CPUS/possible_cpus limit of 8 reached.  Processor 11/0x34 ignored.
[    0.000000] ACPI: NR_CPUS/possible_cpus limit of 8 reached.  Processor 12/0x1 ignored.
[    0.000000] ACPI: NR_CPUS/possible_cpus limit of 8 reached.  Processor 13/0x3 ignored.
[    0.000000] ACPI: NR_CPUS/possible_cpus limit of 8 reached.  Processor 14/0x5 ignored.
[    0.000000] ACPI: NR_CPUS/possible_cpus limit of 8 reached.  Processor 15/0x11 ignored.
[    0.000000] ACPI: NR_CPUS/possible_cpus limit of 8 reached.  Processor 16/0x13 ignored.
[    0.000000] ACPI: NR_CPUS/possible_cpus limit of 8 reached.  Processor 17/0x15 ignored.
[    0.000000] ACPI: NR_CPUS/possible_cpus limit of 8 reached.  Processor 18/0x21 ignored.
[    0.000000] ACPI: NR_CPUS/possible_cpus limit of 8 reached.  Processor 19/0x23 ignored.
[    0.000000] ACPI: NR_CPUS/possible_cpus limit of 8 reached.  Processor 20/0x25 ignored.
[    0.000000] ACPI: NR_CPUS/possible_cpus limit of 8 reached.  Processor 21/0x31 ignored.
[    0.000000] ACPI: NR_CPUS/possible_cpus limit of 8 reached.  Processor 22/0x33 ignored.
[    0.000000] ACPI: NR_CPUS/possible_cpus limit of 8 reached.  Processor 23/0x35 ignored.
[    0.000000] smpboot: 24 Processors exceeds NR_CPUS limit of 8

 

This post talks about the same thing but no resolution or any recommendations: viewtopic.php?f=2&t=7812&p=43584&hilit=max+cpu#p43584

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First off, I apologize that I cannot help you with this particular issue.

 

This may not be the most popular response on this forum, but you are probably throwing way too much computer at this. With that much hardware, you may be better suited to run a Linux ZFS installation and use some of that horsepower for other things. Yes, the software allows you to do a lot of things in Synology OS, but it will never be as good at it as a dedicated Linux machine with a full, open kernel.

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If you are set on using Xpenology for your NAS needs Id say a a good solution would be to use the box to virtualise - Run Xpenology as a VM and give it 8 cores if you like (Although I don't really see any need whatsoever for so many just for Xpenology) and then run whatever other VMs you need for whatever it is you want to do with the other spare 16 (or is it 24???) cores!

 

Andy.

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6 cores each, 12 threads each, 24 total.

 

for a Synology Bare Metal setup? like andyf said go for a EXSi server and give only 8 of them to Synology VM and the rest to other stuff.

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Thanks for all of the advice but 8 cores just doesn't cut it with my current usage and being able to maintain a level of fan noise that doesn't run my wife out of the house.

 

I was hoping there would be a setting somewhere that we could adjust but from the replies it doesn't look like it.

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I still don't get it... What are you doing on the Synology that needs so many cores? Is it massive video transcoding, bitcoin mining or something else? If its purely for file serving then surely that isn't CPU bound and 8 cores is plenty, and if it is for 'something else' that is CPU heavy, then surely those tasks could be offloaded to a different VM running on the same bare metal, using all the other cores, either Synology or Linux/Windows?

 

You could use ESXI, and have 3 Synology VM instances, each with 8 cores if you are so tied to Synology, or a single Synology VM with 8 (or less) cores and a linux VM with the other cores to do your other CPU heavy tasks?

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