# Thinlinc - TigerVNC performance optimisations **URL:** \ **Category:** Community Support\ **Tags:** linux, tlserver, thinlinc\ **Created:** [30 September 2026 01:13 UTC](https://community.thinlinc.com/t/thinlinc-tigervnc-performance-optimisations/2085 "2026-09-30T01:13:43Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Harj](https://avatars.discourse-cdn.com/v4/letter/h/3be4f8/32.png) [@Harj](https://community.thinlinc.com/u/Harj)\ **Post date:** [30 September 2026 01:13 UTC](https://community.thinlinc.com/t/thinlinc-tigervnc-performance-optimisations/2085/1 "2026-09-30T01:13:44Z")
Are there are performance tweaks for Thinlinc and TigerVNC ? Atm its all default settings so I’m curious if there’s any tweaks that can improve the performance further esp for GPU based workloads. I’ve been working on XRDP and came across a few tweaks to XRDP (Xorg sessions) which improved the overall performance esp when compared to XRDP with VNC session. ---
**Author:** ![aaron](https://dub1.discourse-cdn.com/flex005/user_avatar/community.thinlinc.com/aaron/32/13_2.png) [@aaron](https://community.thinlinc.com/u/aaron)\ **Post date:** [30 September 2026 05:32 UTC](https://community.thinlinc.com/t/thinlinc-tigervnc-performance-optimisations/2085/2 "2026-09-30T05:32:35Z")
Which tweaks specifically did you make to XRDP? ---
**Author:** ![Harj](https://avatars.discourse-cdn.com/v4/letter/h/3be4f8/32.png) [@Harj](https://community.thinlinc.com/u/Harj)\ **Post date:** [30 September 2026 09:20 UTC](https://community.thinlinc.com/t/thinlinc-tigervnc-performance-optimisations/2085/3 "2026-09-30T09:20:45Z")
> **[GitHub - beye91/xrdp-ultimate-optimizer](https://github.com/beye91/xrdp-ultimate-optimizer)** > > Contribute to beye91/xrdp-ultimate-optimizer development by creating an account on GitHub. Some of the settings are OS and not XRDP specific: P **roblem:** By default, xRDP kills sessions when connection drops (`KillDisconnected=true`). /etc/xrdp/sesman.ini KillDisconnected=false # Don’t kill sessions on disconnect DisconnectedTimeLimit=0 # No timeout (infinite reconnect window) **Problem:** Default buffer settings in xrdp.ini are too small or commented out. /etc/xrdp/xrdp.ini tcp\_send\_buffer\_bytes=4194304 # 4 MB tcp\_recv\_buffer\_bytes=4194304 # 4 MB (often commented out by default!) \*\* **Problem:** \*\* TCP slow start kicks in after idle periods, causing lag when resuming work. **Solution:** ```auto net.ipv4.tcp_slow_start_after_idle = 0 ``` **Problem:** xRDP requests 4MB socket buffers, but Linux default `wmem_max`/`rmem_max` is only ~200KB. This causes “trans\_write\_copy\_s failed” errors. **Solution:** ```auto # /etc/sysctl.d/99-xrdp-buffers.conf net.core.wmem_max = 16777216 # 16 MB (was 200KB) net.core.rmem_max = 16777216 # 16 MB (was 200KB ``` And xrdp.ini - setting crypt\_level = low from: > **[Optimizing RDP Performance (xrdp): Lessons Learned with Ubuntu 22.04](https://beye.blog/blog/posts/optimizing-rdp-performance-xrdp-lessons-learned-with-ubuntu-22-04)** > > In the dynamic world of system engineering, the choice between proprietary and open-source software often hinges on practicality and expertise. I'm a big ---
**Author:** ![aaron](https://dub1.discourse-cdn.com/flex005/user_avatar/community.thinlinc.com/aaron/32/13_2.png) [@aaron](https://community.thinlinc.com/u/aaron)\ **Post date:** [30 September 2026 22:35 UTC](https://community.thinlinc.com/t/thinlinc-tigervnc-performance-optimisations/2085/4 "2026-09-30T22:35:09Z")
Hi @Harj, > [@Harj](#): > > KillDisconnected=false # Don’t kill sessions on disconnect > DisconnectedTimeLimit=0 # No timeout (infinite reconnect window) ThinLinc has similar settings, but by default sessions will not be killed when disconnected. So unless you’ve changed this default, it should be fine. > [@Harj](#): > > tcp\_send\_buffer\_bytes=4194304 # 4 MB > tcp\_recv\_buffer\_bytes=4194304 # 4 MB (often commented out by default!) ThinLinc doesn’t have an equivalent here, but that’s because we rely on system-level settings instead. So the `net.core.wmem_max` and `net.core.rmem_max` settings you mention below will have the same effect, as should the other system-level tweaks you mentioned. Whether this will actually solve the performance issues you’re seeing or not depends on where the bottleneck is. In general, for GPU workloads, the bottleneck is often the CPU, as this is necessarily involved in shuffling data back and forth between the GPU and the session itself (at least until [Wayland](https://community.thinlinc.com/t/bringing-headless-remote-desktop-to-wayland/2084) support arrives). If this is the case, then unfortunately there’s no simple tweak available to mitigate this. Hope that helps. ---
**Author:** ![Harj](https://avatars.discourse-cdn.com/v4/letter/h/3be4f8/32.png) [@Harj](https://community.thinlinc.com/u/Harj)\ **Post date:** [30 September 2026 23:21 UTC](https://community.thinlinc.com/t/thinlinc-tigervnc-performance-optimisations/2085/5 "2026-09-30T23:21:34Z")
Performance is good for TL, I was checking to see if there were any similar tweaks and settings specifically for TL/X11 etc that could help improve it further. Patchy GPU performance with Nvidia GPU under Linux - at least with EL9.x from my own testing I think is 100% Nvidia Drivers linked. I’d like an Intel AMD GPU to test and compare. With GPU workloads, high CPU clockspeed is always king but having a GPU that is actually being utilised properly always helps.