On Wed, May 22, 2019 at 5:09 AM Nick Couchman <[email protected]> wrote:
> On Tue, May 21, 2019 at 7:47 AM Abolfazl Kazemi <[email protected]> > wrote: > >> Thanks for your reply. >> >> My Network is like this: >> Guacamole client (Tomcat) and guacd are on the same host (Ubuntu 16.04) >> and their connection is through loopback interface. Also, the Network link >> between all hosts is 1Gbps. >> I have not set up any proxy and connect to tomcat directly. >> >> I tested scp both from ClientA to SSH-Host and also from guacd-host to >> SSH-Host and the file was transferred with a rate near 900Mbps. >> >>> >>> > Intersting. During the file transfer with Guacamole, do you see any > signs of the system being under severe load - high CPU or memory > utilization, etc.? I would expect that there would be some additional > overhead going through Guacamole versus directly to the system with > scp/sftp, but I would not expect it to be that high. > > Also, do you know if you're using WebSockets or HTTP for the actual > tunnel? I suspect it is WebSockets since you're on the same host and not > proxying, but just want to make sure. > > -Nick > I used chrome inspection and it shows that WebSocket is in use. I watched memory and cpu usage on Guacamole host. During connections, cpu usage is less than one percent. When file transmission is started guacd and tomcat processes each start using about 35% of the cpu but memory usage does not change much.
