99% CPU load on Linux

[randomsymbols]

Describe the bug 99% CPU load on Linux, even though "max-cpu-usage": 75 in "config.json".

To Reproduce Steps to reproduce the behavior:

1. Download Linux 64 release: "https://github.com/webchain-network/webchain-miner/releases/download/v2.8.0/webchain-miner-2.8.0-linux-amd64.tar.gz".
2. Add your user to "config.json".
3. Run "tmux", then run "./webchain-miner", exit tmux "Ctrl+b d".
4. Run "top" and see CPU usage by "webchain-miner" process.

Expected behavior CPU load not more than set in "config.json" (75% by default).

Screenshots "top" output https://monosnap.com/file/f0RfWCrlX5Fo3IzsPNwbtG2fvi6fdh "config.json" https://monosnap.com/file/UXESxmuhYPNaAJb95ayiH2jvy6rxWC

Desktop (please complete the following information):

• OS: Linux 4.9.0-11-amd64 #1 SMP Debian 4.9.189-3+deb9u1 (2019-09-20) x86_64 GNU/Linux

Additional context webchain-miner release v2.8.0

[cleverrain]

Hi @randomsymbols thank you for reporting it. We will check it.

[ap-rose]

I am also experiencing the same issue - CentOS 7 x64

[danielwebimp]

@randomsymbols @ap-rose Hi, please try to set your CPU affinity in config.json file with this http://store.fsxtimes.com/cal-cam.php . As i know, if you set "threads": 0 this will calculate the optimal number of cores for use based on CPU cache. You can manually set number of cores for mining by set the number in "threads": Xmrig can't use percents of core. If you have 1 core it would be 100% always. If you have 4 cores for example you can choose 25%,50%.75% and 100% of CPU. If 2 cores you have only 50% or 100% options. If you need usage of CPU not at full capacity just don`t use all threads. But set it according to the number of CPU that you have. Example : if you have a 2 CPU, you can set these parameters
"threads": 1 "max-cpu-usage": 50%

[danielwebimp]

And to see the usage, please install "htop" in other to see how behaves your CPU. I tried it and I think the result is satisfying.