High-CPU usage + Malfunciton + Unwanted logs

[John-CPP]

Operating system

Linux

System version

CachyOS (latest)

Installation type

package manager

Version

throne-git (latest) + throne (AUR)

Description

1. As on provided screenshot Throne writes too much logs even if not asked for.
2. When using torrent CPU usage by throne goes up to 100% and internet starts to stutter for other users. Was not a thing for Throne 1.0.12 and also I have a torrent speed limiter so no, it doesn't take all the throughput capability for the torrent.
3. Current version of throne can start taking 100% CPU when windows is opened.

Reproduction

1. Connect to VLESS VPN + Start Torrent. Throne goes crazy instantly
2. Set logs to fatal level and see logs being written still with info/debug level information.
3. Stop Torrent, see things normalize + Close Throne window.
4. Bypass Russia profile is being used. (the same result without using it)

While this problem is triggered by usage of torrent still torrent is not the only problem. (as I understood it's not even about torrent it's more about many connections.)

Logs

all logs are like this:
2026/01/04 12:12:21.405272 from tcp:127.0.0.1:52826 accepted tcp:93.125.107.24:14082 [proxy-inbound -> proxy]

[Mahdi-zarei]

Does this happen only with Vless (Xray) profiles?

[craftfever]

Does this happen only with Vless (Xray) profiles?

For me it happened with Trojan profile also. Xray did not used for either VLESS or Trojan, hence VLESS profile didn't specified as Xray type.

[Mahdi-zarei]

Are you sure Torrent is not just spamming connections causing issues?

[John-CPP]

Profiles usage doesn't affect CPU usage.

Tested this problem with another VLESS client (sing-box based)
It also gives the same CPU high usage. There problem could be fixed by disabling "Turn on Mux Multiplexing"

[Mahdi-zarei]

Profiles usage doesn't affect CPU usage.

Tested this problem with another VLESS client (sing-box based) It also gives the same CPU high usage. There problem could be fixed by disabling "Turn on Mux Multiplexing"

It MAY be a bug, but it seems that the problem is coming from sing-box's end given your description. So i don't think there is much that we can do.

[John-CPP]

Profiles usage doesn't affect CPU usage.
Tested this problem with another VLESS client (sing-box based) It also gives the same CPU high usage. There problem could be fixed by disabling "Turn on Mux Multiplexing"

It MAY be a bug, but it seems that the problem is coming from sing-box's end given your description. So i don't think there is much that we can do.

There is. What another VLESS client did? They disabled this option by default.

[Mahdi-zarei]

There is. What another VLESS client did? They disabled this option by default.

This option is useful by default, i will not turn it off only because in interferes with torrent traffic, and there is the choice to disable it manually, there is no reason for us to disable it by default.

[John-CPP]

Maybe at least add some warning text there? to tell about possible CPU overload in case of torrent usage?

[John-CPP]

Also there is another solution. Add rule that allows to send all torrent traffic directly.

[Mahdi-zarei]

Maybe at least add some warning text there? to tell about possible CPU overload in case of torrent usage?

Where exactly to add it?

Also there is another solution. Add rule that allows to send all torrent traffic directly.

You can already do that.

[John-CPP]

For new users it's not obvious and for me it wasn't obvious too.
And I don't get if you want this at all? I mean yes, me personally - I don't need it but others might benefit from it.

Where exactly to add it?
I think where Multiplex (mux) option is (basic->core). When you point a mouse cursor on it give a hint/tooltip.. like with Enable Tun Routing.

And for torrent I think the best solution will be to add it just as "Enable Adblock" but "Direct Torrent"

[0x3mp7y]

Sorry I don't understand what mux settings disabling are you talking about that can fix it.

I don't see any multiplexing settings are enabled by default

[Mahdi-zarei]

Sorry I don't understand what mux settings disabling are you talking about that can fix it.

I don't see any multiplexing settings are enabled by default

Good point, mux is not enabled by default, so by default there is no issue with torrent!

For new users it's not obvious and for me it wasn't obvious too. And I don't get if you want this at all? I mean yes, me personally - I don't need it but others might benefit from it.

Where exactly to add it?
I think where Multiplex (mux) option is (basic->core). When you point a mouse cursor on it give a hint/tooltip.. like with Enable Tun Routing.

And for torrent I think the best solution will be to add it just as "Enable Adblock" but "Direct Torrent"

New users do not face this issue unless they change the settings, the default setting for mux is disabled by default.

[John-CPP]

maybe it's a false alarm.
reinstalled throne.. now qtbittorrent creates 100% CPU highload for a small amount of time and then CPU usage drops to the basic level.
but another problem emerged. when using torrent other clients stop working. (I use PC with throne as a network gateway).
after bittorent stopped and throne connection restarted - things get back to normal. (I tried to limit torrent speed to be sure torrent is not taking everything. put it to 50% of WAN/VPN throughput)

[Mahdi-zarei]

maybe it's a false alarm. reinstalled throne.. now qtbittorrent creates 100% CPU highload for a small amount of time and then CPU usage drops to the basic level. but another problem emerged. when using torrent other clients stop working. (I use PC with throne as a network gateway). after bittorent stopped and throne connection restarted - things get back to normal. (I tried to limit torrent speed to be sure torrent is not taking everything. put it to 50% of WAN/VPN throughput)

This definitely is a problem with torrent. When you start Throne and other clients can't connect, this usually mean your open file limit is reached, it has nothing to do with bandwidth.