What is gltertf and why does it use tons of RAM?

Technical Support for Routers
1

My X750 (spitz) router becomes sluggish after a bunch of days (18 days uptime right now) and it seems it has to do with gltertf:

  PID USER      PR  NI    VIRT    RES %CPU %MEM     TIME+ S COMMAND
 3077 root      20   0   41.6m  38.5m  0.0 31.6 864:45.74 S gltertf

What does it do? Why does it use so much memory?

2

gl-tertf
gl-tertf1269×452 123 KB

I contacted gl-inet support, apparently it controls clients and block list

3

Yes, unfortunately enabling the client stats and blocking means all traffic must pass through gltertf, causing the memory usage and cpu usage.

4

How do I disable that?

5

Try this?

6

Thanks, I ended up disabling it in luci and adding an exit 0 into start_service in the init.d script. Those stats are totally useless anyway, better turn them off…

7

I am seeing this behavior on a Brume running the latest firmware. There’s no reason this should be taking 500MB of RAM after a few days of uptime.

9

Hi guys,
it is Jul 2022, and ‘gltertf’ still brings a bad impact on a new LTE E750 router with latest updates.

This process becomes deadlock in 4-5h of router use and you must reboot the router. I also found that my E750 start to disconnect all clients from 2.4 wifi after a few hours of work. And the MCU (display) software also impacts router stability.

So, after one month of torment, I was not able to make my router stable, but I found some workaround, that helps me not to reboot the router manually every few hours, like in a LOST movie…

luci → System → Schedulet Tasks

# reboot at 5am
0 5 * * * reboot

# restart wifi every 5h
*/300 * * * * wifi down && wifi up

# tuning gl.software
@reboot /etc/init.d/gl_tertf disable && /etc/init.d/gl_tertf stop
@reboot /etc/init.d/e750_mcu disable && /etc/init.d/e750_mcu stop
@reboot sleep 10 && rm /tmp/tertf/tertfinfo_bak
@reboot sleep 10 && rm /etc/tertf/tertfinfo_bak
*/58 * * * * /etc/init.d/gl_route_policy restart

P.s. I hope that the gl team will find a message and put some attention to their router’s stability. As an owner of a few products (MV1000, E750, etc.) since 2015, unfortunately I would say that without additional scripts that reload wireguard, wifi and other gl-software, these routers still can not work stable.

10

I"ve not poked at this for a while, but gltertf also comes with a 1meg mac database taking up room in the firmware. It is possible with imagebuilder to build the firmware without it.

11

Yes. We have a chinese post, just updated. 【03.21更新】怎样快速编译出带glinet页面的固件 - 源代码下载 - forum.gl-inet.cn - Powered by Discuz!
It is for firmware 4.x though.

Firmware 3.x you need to use GitHub - gl-inet/imagebuilder: Warning！Please look at 'GL.iNET Imagebuilder Introduction' section. but it may not be easy to compile the same firmware.