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IT News<p>Why The Latest Linux Kernel Won’t Run On Your 486 And 586 Anymore - Some time ago, Linus Torvalds made a throwaway comment that sent ripples through t... - <a href="https://hackaday.com/2025/07/02/why-the-latest-linux-kernel-wont-run-on-your-486-and-586-anymore/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">hackaday.com/2025/07/02/why-th</span><span class="invisible">e-latest-linux-kernel-wont-run-on-your-486-and-586-anymore/</span></a> <a href="https://schleuss.online/tags/currentevents" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>currentevents</span></a> <a href="https://schleuss.online/tags/originalart" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>originalart</span></a> <a href="https://schleuss.online/tags/linuxhacks" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>linuxhacks</span></a> <a href="https://schleuss.online/tags/cmpxchg8b" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>cmpxchg8b</span></a> <a href="https://schleuss.online/tags/featured" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>featured</span></a> <a href="https://schleuss.online/tags/pentium" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>pentium</span></a> <a href="https://schleuss.online/tags/cyrix" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>cyrix</span></a> <a href="https://schleuss.online/tags/linux" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>linux</span></a> <a href="https://schleuss.online/tags/rdtsc" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>rdtsc</span></a> <a href="https://schleuss.online/tags/elan" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>elan</span></a> <a href="https://schleuss.online/tags/i486" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>i486</span></a> <a href="https://schleuss.online/tags/amd" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>amd</span></a> <a href="https://schleuss.online/tags/tsc" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>tsc</span></a></p>
Enitin :cursor: :verify:<p>This turned into me writing a program that tries to detects if it's running inside of a <a href="https://mastodon.enitin.xyz/tags/VM" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>VM</span></a>. So I can then try to make the VM less detectable. And because I was using the <a href="https://mastodon.enitin.xyz/tags/RDTSC" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>RDTSC</span></a> and <a href="https://mastodon.enitin.xyz/tags/CPUID" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>CPUID</span></a> instructions I continued developing my CPUID program that I've never finished.<br><a href="https://git.enitin.xyz/enitin/cpuid" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">git.enitin.xyz/enitin/cpuid</span><span class="invisible"></span></a><br>A classic rabbit hole.<br>"I want to do this. But that means I have to do that. Which means I can continue that other thing I've started doing some time ago." :derp_dog:</p>
linuxHow stable is TSC (TimeStamp Counter) from user space for Intel x86-64 CPUs in 2020? Some times I...<br><br><a href="https://stackoverflow.com/questions/61438836/how-stable-is-tsc-timestamp-counter-from-user-space-for-intel-x86-64-cpus-in-2" rel="nofollow noopener" target="_blank">https://stackoverflow.com/questions/61438836/how-stable-is-tsc-timestamp-counter-from-user-space-for-intel-x86-64-cpus-in-2</a><br><br><a rel="nofollow noopener" class="mention hashtag" href="https://mastodon.social/tags/linux" target="_blank">#linux</a> <a rel="nofollow noopener" class="mention hashtag" href="https://mastodon.social/tags/x86" target="_blank">#x86</a> <a rel="nofollow noopener" class="mention hashtag" href="https://mastodon.social/tags/timestamp" target="_blank">#timestamp</a> <a rel="nofollow noopener" class="mention hashtag" href="https://mastodon.social/tags/rdtsc" target="_blank">#rdtsc</a> <a rel="nofollow noopener" class="mention hashtag" href="https://mastodon.social/tags/userspace" target="_blank">#userspace</a><br><br><a href="https://awakari.com/pub-msg.html?id=2mJMrCZavqSQa46dVIbsIDEYOEq" rel="nofollow noopener" target="_blank">Event Attributes</a>
Habr<p>Краткое сравнение популярных функций измерения времени</p><p>Какую реальную точность можно ожидать от функции возвращающей время, а сколько времени она выполняется сама? Попытка замерить и сравнить несколько десятков функций, доступных программисту на C++. Вот что получилось</p><p><a href="https://habr.com/ru/articles/818965/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">habr.com/ru/articles/818965/</span><span class="invisible"></span></a></p><p><a href="https://zhub.link/tags/rdtsc" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>rdtsc</span></a> <a href="https://zhub.link/tags/rdtscp" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>rdtscp</span></a> <a href="https://zhub.link/tags/windows" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>windows</span></a> <a href="https://zhub.link/tags/linux" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>linux</span></a> <a href="https://zhub.link/tags/QueryPerformanceCounter" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>QueryPerformanceCounter</span></a> <a href="https://zhub.link/tags/clock_gettime" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>clock_gettime</span></a> <a href="https://zhub.link/tags/gettimeofday" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>gettimeofday</span></a> <a href="https://zhub.link/tags/CNTVCT_EL0" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>CNTVCT_EL0</span></a></p>