Mieze Posted November 26, 2025 Author Share Posted November 26, 2025 After weeks of reading through the Tahoe source code, trying different approaches and finally optimising the code for speed and reliability, I'm proud to publish the first test version of IntelLucy (version 1.1.5 build 1.1.549), which is fully compatible with AppleVTD under Tahoe. Speed and reliability tests have been successfully completed on my test machine with and without AppleVTD, so that I think that it's time to share the results of my work with you. Good luck testing! Mieze 😺 IntelLucy-1.1.549.zip 6 Link to comment https://www.insanelymac.com/forum/topic/359009-intellucy-for-the-intel-x500-family/page/7/#findComment-2844239 Share on other sites More sharing options...
kgp Posted November 26, 2025 Share Posted November 26, 2025 (edited) 33 minutes ago, Mieze said: After weeks of reading through the Tahoe source code, trying different approaches and finally optimising the code for speed and reliability, I'm proud to publish the first test version of IntelLucy (version 1.1.5 build 1.1.549), which is fully compatible with AppleVTD under Tahoe. Speed and reliability tests have been successfully completed on my test machine with and without AppleVTD, so that I think that it's time to share the results of my work with you. Good luck testing! Mieze 😺 IntelLucy-1.1.549.zip 95.86 kB · 2 downloads Congratulations . Fantastic work, just Plug & Play under Tahoe with AppleVTD enabled 👍💫. Many, many thanks for all your hard work and extensive efforts! Edited November 26, 2025 by KGP-iMacPro 1 Link to comment https://www.insanelymac.com/forum/topic/359009-intellucy-for-the-intel-x500-family/page/7/#findComment-2844243 Share on other sites More sharing options...
Mieze Posted December 8, 2025 Author Share Posted December 8, 2025 Here is version 1.1.5 (build 1.1.552) of IntelLucy, which fixes some bugs of the latest build. I have installed this build on my production systems now, because it has passed all speed and stability tests. Have fun! Mieze 😺 IntelLucy-V1.1.5-build-1.1.552.zip 2 2 Link to comment https://www.insanelymac.com/forum/topic/359009-intellucy-for-the-intel-x500-family/page/7/#findComment-2844738 Share on other sites More sharing options...
kgp Posted December 8, 2025 Share Posted December 8, 2025 24 minutes ago, Mieze said: Here is version 1.1.5 (build 1.1.552) of IntelLucy, which fixes some bugs of the latest build. I have installed this build on my production systems now, because it has passed all speed and stability tests. Have fun! Mieze 😺 IntelLucy-V1.1.5-build-1.1.552.zip 92.11 kB · 0 downloads I didn’t notice any bugs or flaws with 1.1.549 either. 🙃 Everything has worked perfectly right from the beginning of the 1.1.5 release. Many thanks again for all your hard work and the support we’re receiving from your side! 💫 KGP 1 Link to comment https://www.insanelymac.com/forum/topic/359009-intellucy-for-the-intel-x500-family/page/7/#findComment-2844740 Share on other sites More sharing options...
kgp Posted December 13, 2025 Share Posted December 13, 2025 (edited) @Mieze, one minor issue though 🙃.. Under Sequoia 15.7.2 and 15.7.3, there are minor connectivity issues of IntelLucy 1.1.552 on my system, occasionally not connecting to Ethernet directly after boot, with or without AppleVTD enabled. At some point, however it always successfully connects to Ethernet and stays connected. Did not check 1.1.549 under Sequoia previously. Under Tahoe 26.2, IntelLucy 1.1.552 continues working flawlessly with and without AppleVTD enabled. This just as a feedback from my testing of IntelLucy 1.1.552 on my system. 👍 Edited December 13, 2025 by KGP-iMacPro Link to comment https://www.insanelymac.com/forum/topic/359009-intellucy-for-the-intel-x500-family/page/7/#findComment-2844903 Share on other sites More sharing options...
Mieze Posted December 13, 2025 Author Share Posted December 13, 2025 @KGP-iMacPro This is not a bug, it's the flapping link recovery procedure. When the link is lost in less than 3 seconds after a link up event, a flapping link event is assumed and the PHY is powered down for 5 seconds to recover from that situation. After that the PHY is powered up again to reestablish the link. This procedure takes about 10 seconds, so that there is a noticeable delay until the network is available. Unfortunately, I haven't been able to find the reason of the flapping link issue. Maybe I'll have to compare the driver source from the linux kernel, which my code is based on, with Intel's driver source code. Mieze 😺 1 Link to comment https://www.insanelymac.com/forum/topic/359009-intellucy-for-the-intel-x500-family/page/7/#findComment-2844921 Share on other sites More sharing options...
kgp Posted December 13, 2025 Share Posted December 13, 2025 @Mieze, there is actually a simple solution: on Tahoe, I use IntelLucy 1.1.5, which works flawlessly with AppleVTD enabled or disabled. For Sequoia, I simply use version 1.1.3, which also works flawlessly with AppleVTD enabled or disabled. Link to comment https://www.insanelymac.com/forum/topic/359009-intellucy-for-the-intel-x500-family/page/7/#findComment-2844944 Share on other sites More sharing options...
Mieze Posted December 14, 2025 Author Share Posted December 14, 2025 I intensified testing IntelLucy 1.1.5 with Sequoia, because I must confess, that this point has been neglected as I focused on Tahoe. As a result, I found some small problems, which have been fixed in the attached build 1.1.553. Mieze 😺 IntelLucy-V1.1.5-build-1.1.553.zip 2 Link to comment https://www.insanelymac.com/forum/topic/359009-intellucy-for-the-intel-x500-family/page/7/#findComment-2844975 Share on other sites More sharing options...
kgp Posted December 14, 2025 Share Posted December 14, 2025 Many thanks, Mieze! I will test the new version as soon I am at home in the late afternoon and report back asap. 👍 Link to comment https://www.insanelymac.com/forum/topic/359009-intellucy-for-the-intel-x500-family/page/7/#findComment-2844977 Share on other sites More sharing options...
kgp Posted December 14, 2025 Share Posted December 14, 2025 (edited) @Mieze, I would say the remaining issue with Sequoia is almost resolved with version 1.1.553 and really minor. There is still a slight delay in Ethernet connectivity after boot and the login screen, but it is significantly shorter than with version 1.1.552 - now roughly 10 to 20 seconds. When disabling (“Make Inactive”) and re-enabling (“Make Active”) Ethernet, the delay is about 3 to 10 seconds. Connectivity is always 100% guaranteed. I performed several tests both with AppleVTD enabled and disabled. The behaviour is identical. No issues at all under Tahoe 👍 Edited December 14, 2025 by KGP-iMacPro 2 1 Link to comment https://www.insanelymac.com/forum/topic/359009-intellucy-for-the-intel-x500-family/page/7/#findComment-2844995 Share on other sites More sharing options...
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