On the design of the SYSENTER Intel syscall instruction, and how the elegant idea fell apart https://groups.google.com/forum/m/#!topic/comp.arch/CjDs4MJCBow%5B1-25%5D …pic.twitter.com/VIZlsh87cE
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@richfelker @fioraaeterna oh I totally agree. see: the insane hacks of upping the timer interrupt res globally, & that's still not enough.
@bofh453 @FioraAeterna OTOH providing a function works. Mem stores last observed real time & rdtsc; func does rdtsc again & applies delta.
@richfelker @fioraaeterna yeah, this is what I do, but it only works when CONSTANT_TSC is true (which is more commonly the case nowadays).
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