topic Re: Any way to reduce CSR1000v load on CPU in EVE-NG? in Routing and SD-WAN

Any way to reduce CSR1000v load on CPU in EVE-NG?

mohammadimani — Fri, 26 Apr 2024 15:53:02 GMT

Any way to reduce CSR1000v load on CPU in EVE-NG? It is very CPU Intensive and increases the temperature very much. I need to lab SR and I know of no other image for regular IOS or IOS-XE that supports that.

Re: Any way to reduce CSR1000v load on CPU in EVE-NG?

balaji.bandi — Fri, 26 Apr 2024 15:52:36 GMT

Not really if you need to deploy high end PoC and test it, you need that compute and RAM for the features to work.

Re: Any way to reduce CSR1000v load on CPU in EVE-NG?

MHM Cisco World — Fri, 26 Apr 2024 16:27:37 GMT

I am totally with you
I have CPU 12 cores and I assign 8 cores to VM and can not run csr

sorry for that

MHM

Re: Any way to reduce CSR1000v load on CPU in EVE-NG?

mohammadimani — Fri, 26 Apr 2024 16:55:40 GMT

Exactly! Even with 2 CPUs and 40 cores, I still see this and I have not even configured it with any feature!

Any other image supporting SR?

Re: Any way to reduce CSR1000v load on CPU in EVE-NG?

MHM Cisco World — Fri, 26 Apr 2024 17:01:24 GMT

sure there XRv which is dedicate for SP
if I have 40 cores sure I will use XRv

MHM

Re: Any way to reduce CSR1000v load on CPU in EVE-NG?

Ramblin Tech — Sat, 27 Apr 2024 15:30:29 GMT

This situation might be unique to EVE-NG. I run CML on a bare-metal 2x 12c Xeon with 256GB RAM. Using CML's defaults of 1 vCPU and 3GB vRAM, CSR1Kv 17.3.4a (image on 2.7 refplat) boots and is ready for action (green checkmark) in about 2.5 minutes.

Running a single CSR1Kv instance with no user config (default Day 0 config only), CML says <1% of its CPU is being utilized along with 1.6% of RAM.

Re: Any way to reduce CSR1000v load on CPU in EVE-NG?

mohammadimani — Sun, 28 Apr 2024 06:53:56 GMT

Wow! I will sure try CML!

Re: Any way to reduce CSR1000v load on CPU in EVE-NG?

Joseph W. Doherty — Sun, 28 Apr 2024 16:01:29 GMT

Have not used EVE-NG, but (many) years ago, first time I used GNS3 it had a feature to analyze a running IOS that would dramatically reduce its CPU usage. Don't know if GNS3 still has this feature or whether EVE-NG has anything similar.

I do see on EVE-NG site's home page there's mention of the CPU Watchdog feature and release notes mentions a fix daemon capdog/cpulimit, but couldn't find additional details.

I too, like Jim (@Ramblin Tech) had thought to mention CML as an alternative, but as you didn't mention what license variant of EVE-NG you were running, didn't know whether CML's subscription fee would be an impediment. (If CML still offers, they had provided a temporary web lab version that's free.)

Also, I've never loaded up the CSR1000v node, and wanted to try doing so, which I did a short time ago.

My personal PC, on which I run CML is Windows 10, 16 GB RAM with a 4 GHz Quad core AMD Ryzen 3 2300X, likely much less powerful than Jim's system.

Further, I run CML under VM Workstation v5.

When I booted up a CSR1000v node, it took several minutes (pegging my one core). Once booted up, CPU usage fell to under 2%, but memory footprint was about 45% of the 8 GB I've allocated to the VM.

When I attempted to boot up another CSR100v, it failed for lack of hardware resources, memory I presume.

I stopped the first instance, and attempted to boot the two CSR100v nodes, concurrently.

Surprisingly, this succeeded, using about 90% of my lab's memory, CPU fell to about 2%, but I kept getting CML controller pop-ups that its launch was being paused because of over commitment. Did get a (apparently) working command link on both CSR1000v nodes, though.

Re: Any way to reduce CSR1000v load on CPU in EVE-NG?

mohammadimani — Mon, 29 Apr 2024 07:12:53 GMT

Your are totally right and CML must be great in this. I have EVE pro and community and PnetLab. They all use the same engine so the result is the same.

However, I tried csr1000v-17-03-06 and CPU usage on this image is very low (1 to 2 percent) and I am gonna use this. It supports SR so the version is not gonna be so important.

Thank you and everyone else for the help.

Re: Any way to reduce CSR1000v load on CPU in EVE-NG?

paul driver — Tue, 30 Apr 2024 14:08:40 GMT

Hello
Have you checked your vm and eve settings,
I have no issue running 10 + CSR nodes within eve-ng - although I do have quite a good barebones server (16core/128mb) to run it on and eve-ng is the professional licence

see attached files for reference

Re: Any way to reduce CSR1000v load on CPU in EVE-NG?

mohammadimani — Wed, 01 May 2024 06:47:49 GMT

Like I said, on my server (2X E5-2690v2, 20 cores each, 128GB RAM), with csr1000v-17-03-06 I have no problem!

Thanks for the insight.