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A question: has anyone remarked that the kernel-4.4.11 is really less responsive than the 4.9.x series?
That problem is discussed at large in another kernel thread.
Long story short: welcome in to new age of computing, now even slower, thanks to Intel which try to protect its IMEs to be hijacked by the bad guys even via javascript.
IF you run with an pre-2009 Intel CPU or an AMD one, there is your savior: nopti added to kernel command line and a mighty reboot.
IF you run a "modern" Intel CPU, I strongly suggest you to leave as it is, or nasty things could happen. At least according with Intel.
Last edited by Darth Vader; 01-03-2018 at 03:26 PM.
no slowdowns noted and some minor issues fixed by update
using 64 bit current. no 32 bit multilib these days
64 bit current with multilib - but can confirm no slowdown for me either on the whole (7600K) according to geekbench it's marginally faster https://browser.geekbench.com/user/132977
The main difference I see is that before going to 4.14.11 (I stayed on 4.9.x) was that the CPU at idle would sit at 800Mhz with bounces up to 2Ghz.. on 4.14.11 it bounces mainly between 2Ghz up to 4.5Gz but the temps are still sitting around 36C so I don't know if the readings are getting stuffed up somehow.
A question: has anyone remarked that the kernel-4.4.11 is really less responsive than the 4.9.x series?
For normal day-to-day use of a typical desktop user, there should be no visible slowdown. Even on my humble Celeron 2-in-1 netbook I see no difference in responsiveness. PTI hits applications making many syscalls. These are typically server software, making huge amounts of file or network I/O and virtualization stuff.
The same "du" test gives 30% slowdown on my Celeron but it is not representative for typical desktop use. Funnily enough, some Octave scripts which I need to work with seem to be even a bit faster on 4.14.11. Of course, PTI is not supposed to make any difference there anyway. I wonder if the positive impact from the recent introduction of the ORC unwinder into the kernel may even outweigh the hit from PTI on desktop workloads.
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