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ArShuRaZ
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My RB4011 with ROS 7.2.3 still consume 100% cpu on only 1 core.

Wed Jun 01, 2022 8:06 pm

1654100840966.jpeg
Site A (Leased Line)<--- pptp --->(FTTx; PPPoE) Site B
RB 4011 is at site B. The Traffic usage is only about 200Mbps but it consumes 100% on cpu0 and slow down overall traffic.

Any suggestion?
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Znevna
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Re: My RB4011 with ROS 7.2.3 still consume 100% cpu on only 1 core.

Wed Jun 01, 2022 8:15 pm

yes, right click cpu0, profile, sort, screenshot, upload here.
 
ArShuRaZ
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Re: My RB4011 with ROS 7.2.3 still consume 100% cpu on only 1 core.

Wed Jun 01, 2022 9:07 pm

yes, right click cpu0, profile, sort, screenshot, upload here.
Edit: sorry. profile wrong cpu. will post the right one later when it occurs again.
Last edited by ArShuRaZ on Wed Jun 01, 2022 9:11 pm, edited 2 times in total.
 
Kindis
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Re: My RB4011 with ROS 7.2.3 still consume 100% cpu on only 1 core.

Wed Jun 01, 2022 9:08 pm

I may be wrong here but does pptp spread over cores or is it only one core for all traffic?
 
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Re: My RB4011 with ROS 7.2.3 still consume 100% cpu on only 1 core.

Wed Jun 01, 2022 9:22 pm

I doubt anybody will fix PPTP even if there is some bug.
 
ArShuRaZ
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Re: My RB4011 with ROS 7.2.3 still consume 100% cpu on only 1 core.

Wed Jun 01, 2022 9:28 pm

yes, right click cpu0, profile, sort, screenshot, upload here.
cpu100-01.png
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ArShuRaZ
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Re: My RB4011 with ROS 7.2.3 still consume 100% cpu on only 1 core.

Fri Jun 03, 2022 5:11 pm

cpu100-02.png
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ArShuRaZ
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Re: My RB4011 with ROS 7.2.3 still consume 100% cpu on only 1 core.

Sat Jun 04, 2022 4:21 pm

any suggestion?
 
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Wangz
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Re: My RB4011 with ROS 7.2.3 still consume 100% cpu on only 1 core.

Wed Jun 08, 2022 7:07 am

Are you natting at your RB4011?
 
Kindis
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Re: My RB4011 with ROS 7.2.3 still consume 100% cpu on only 1 core.  [SOLVED]

Wed Jun 08, 2022 11:42 pm

I assume that this only happens during high traffic over the pptp connection?

I maintain the idea that this is they way pptp works. The interface will only run over one CPU core and that is the effect you see now. I can be wrong but think this is the way it work. So not a bug but by design.

Still think it is wrong then do a supout file during the issue and send to support with a explanation of the issue.
 
ArShuRaZ
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Re: My RB4011 with ROS 7.2.3 still consume 100% cpu on only 1 core.

Sun Jun 12, 2022 5:04 pm

Are you natting at your RB4011?
Yes. RB4011 dial PPPoE (FTTx) and NAT all client to Internet IP for accessing Internet. But no natting for traffic in vpn tunnel.
 
ArShuRaZ
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Re: My RB4011 with ROS 7.2.3 still consume 100% cpu on only 1 core.

Sun Jun 12, 2022 5:05 pm

I assume that this only happens during high traffic over the pptp connection?

I maintain the idea that this is they way pptp works. The interface will only run over one CPU core and that is the effect you see now. I can be wrong but think this is the way it work. So not a bug but by design.

Still think it is wrong then do a supout file during the issue and send to support with a explanation of the issue.
Thank you. I'm planning to change vpn connection to wireguard ... and will check the result on high traffic again.
 
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Re: My RB4011 with ROS 7.2.3 still consume 100% cpu on only 1 core.

Tue Jun 14, 2022 11:52 am

I assume that this only happens during high traffic over the pptp connection?

I maintain the idea that this is they way pptp works. The interface will only run over one CPU core and that is the effect you see now. I can be wrong but think this is the way it work. So not a bug but by design.

Still think it is wrong then do a supout file during the issue and send to support with a explanation of the issue.
Thank you. I'm planning to change vpn connection to wireguard ... and will check the result on high traffic again.
Very interested to see the effect of this.
 
ArShuRaZ
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Re: My RB4011 with ROS 7.2.3 still consume 100% cpu on only 1 core.

Sun Jun 19, 2022 10:42 am



Thank you. I'm planning to change vpn connection to wireguard ... and will check the result on high traffic again.
Very interested to see the effect of this.
Wireguard Tunnel between MikroTik must be specific ip (endpoint) on both side?

My situation is
MikroTik at Site A: has fixed public ip address.
MikroTik at Site B: has dynamic public ip address.

Still finding the way to do it without specific Public IP at site B (Treat Site B like road warier).
 
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Znevna
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Re: My RB4011 with ROS 7.2.3 still consume 100% cpu on only 1 core.

Sun Jun 19, 2022 10:45 am

No, it's not mandatory to specify an endpoint for both sides.
 
ArShuRaZ
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Re: My RB4011 with ROS 7.2.3 still consume 100% cpu on only 1 core.

Sun Jun 19, 2022 11:46 am

No, it's not mandatory to specify an endpoint for both sides.
Thank you. Able to do the tunnel now.

just specific endpoint at site B and leave endpoint blank at site A.
and use persistence handshake at site B.

Will wait to see the CPU usage when high traffic.
 
ArShuRaZ
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Re: My RB4011 with ROS 7.2.3 still consume 100% cpu on only 1 core.

Mon Jun 20, 2022 8:24 pm

Will wait to see the CPU usage when high traffic.
wireguard.png
From Max Bandwidth 190 Mbps with PPTP ... to 490 Mbps with Wireguard.
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Znevna
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Re: My RB4011 with ROS 7.2.3 still consume 100% cpu on only 1 core.

Mon Jun 20, 2022 8:28 pm

Hmm, I think RB4011 can do a little more than that, unless you have a funky config.
What MTU did you set for the Wireguard interfaces?
And what MTU do you have on your WAN at BOTH sides (tested)?
 
ArShuRaZ
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Re: My RB4011 with ROS 7.2.3 still consume 100% cpu on only 1 core.

Mon Jun 20, 2022 8:53 pm

Hmm, I think RB4011 can do a little more than that, unless you have a funky config.
What MTU did you set for the Wireguard interfaces?
And what MTU do you have on your WAN at BOTH sides (tested)?
I thought so.. My Internet b/w is 1Gbps but can use about 500Mbps with RB4011

I did not set the MTU .. just leave it to default value (1420) for both side on wireguard.

Site A: MikroTik CHR is directed connect to ISP with static IP (Interface MTU is 1500) ... cpu only about 10% on b/w 500Mbps
Site B: RB4011 connect Internet with PPPoE and default MTU (1492) ... firewall was only 2 rows. and no L7 protocol.

Anyway. I'm satisfied with the current result. 500Mbps is better than 200Mbps as before.

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