KM8P Limit

[temps]

Hi,

 
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Welcome to ARMBIAN 5.44 user-built Ubuntu Disco Dingo (development branch) 3.14.29   
System load:   1.51 1.42 1.39      Up time:       1:26 hour        
Memory usage:  57 % of 781MB      Swap usage:    34 % of 390Mb      IP:            x.x.x.x
CPU temp:      40°C               
Usage of /:    52% of 27G        

[ General system configuration (beta): armbian-config ]

 

I have a server lamp actif, when I use mastodon (firefox) the KM8P freeze

 

memory ? swapiness soluce ?

does anyone have an idea of a solution?