lcd4linux-users

[lcd4linux] PPP plugin - high load

[Zsiros Z. <zs...@ma...>]

Hi,

I tried to switch to a new lcd4linux. I checked out source from cvs at
30/12/2004. I cleaned the sample config file to include used lines only.
I display only a few things like system date/time, uptime, network
traffic. I would like to display ppp traffic but when I insert the ppp
widget to the default layout, system load grows up quickly.
I didn't change anything in the sample config around ppp widget.
What should I do to eliminate this high load?

Zsolt

Re: [lcd4linux] PPP plugin - high load

[Michael R. <re...@eu...>]

Hi Zsolt,

> I tried to switch to a new lcd4linux. I checked out source from cvs at
> 30/12/2004. I cleaned the sample config file to include used lines only.
> I display only a few things like system date/time, uptime, network
> traffic. I would like to display ppp traffic but when I insert the ppp
> widget to the default layout, system load grows up quickly.
> I didn't change anything in the sample config around ppp widget.
> What should I do to eliminate this high load?

You are right, the PPP plugin is far from optimal regarding CPU usage. I 
don't remember exactly, but I think the system call is quite cpu-intensive.

But the PPP plugin should be considered obsolete. Use the netdev-plugin 
instead, and specify 'ppp' as a device.

Example: netdev('ppp0', 'Rx_bytes', 500)

This plugin parses /proc/net/dev, and is quite fast!

HTH, Michael

-- 
Michael Reinelt <re...@eu...>
http://members.eunet.at/reinelt
GPG-Key 0xDF13BA50
ICQ #288386781

Re: [lcd4linux] PPP plugin - high load

[Michael R. <re...@eu...>]

Hi Zsolt,

>>But the PPP plugin should be considered obsolete. Use the netdev-plugin
>>instead, and specify 'ppp' as a device.

> Thank you, I change my config file. The netdev_plugin worked fast.
Fine!

> I have one more question. As I mentioned I cleaned up some unneded parts
> from config file (etc: MySQL, pop3, etc).
> During start the lcd4linux process i get some error messages on stderr:
> 
> i2c_sensors: unable to autodetect i2c sensors!
> [MySQL] no 'Plugin:MySQL:database' entry from
> /etc/lcd4linux/lcd4linux.conf, specify one
> 
> Should I write back these widgets to config file to eliminate this error
> or is there any other way to do it?

Just ignore these errors for the moment. They will go away as soon as we 
have plugin-autoloading (which menas a plugin is not staically compiled 
into lcd4linux, but will be loaded dynamically at first usage)

bye, Michael

-- 
Michael Reinelt <re...@eu...>
http://members.eunet.at/reinelt
GPG-Key 0xDF13BA50
ICQ #288386781