<div dir="auto">I see stuff like that and summarily dismiss everything the author said and says from then on. Once a dufus, always a dufus until better data is provided.</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Nov 15, 2023, 7:29 PM Jon "maddog" Hall via Ale <<a href="mailto:ale@ale.org">ale@ale.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto">The other thing that surprised me was the passage that said "Comments just slow down the compilation".<div dir="auto"><br></div><div dir="auto">Paaaaleese! Even the heaviest commented source code on a compiled program would be a breeze for the compiler to handle. This excuse is fake news.</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Nov 15, 2023, 19:14 Ed Cashin via Ale <<a href="mailto:ale@ale.org" target="_blank" rel="noreferrer">ale@ale.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">It's funny that the code is pretty conventional and should be clear to people who read kernel sources a lot, but *the comments* were wrong. And people in the Reddit discussion are speculating that Linux should have 30% comments like NVIDIA does.<div><br></div><div>But I'm not sure this is such a big deal---If you ignore the comments, the code is just saying, "Let tasks stay on the CPU longer if there are more CPUs, but only increase the time slice up to eight CPUs." If you let it keep scaling, you'd have terrible latency on massively parallel machines. If you had all your cores working hard on math, you'd try to launch a process or interact with something and get a huge pause.</div><div><br></div><div>The scaling appears just based on a speculation that if you have multiple CPUs, there might be a free one to help mitigate the increased latency. So it seems good that they wouldn't get carried away. Maybe someone will just try it and see.</div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Nov 15, 2023 at 9:12 AM Boris Borisov via Ale <<a href="mailto:ale@ale.org" rel="noreferrer noreferrer" target="_blank">ale@ale.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="auto">Read somewhere today that linux kernel has been accidentally locked to 8 cores.<div dir="auto"><br></div><div dir="auto">Anyone to collaborate. </div></div>
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</blockquote></div><br clear="all"><div><br></div><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature"><div dir="ltr"> Ed Cashin <<a href="mailto:ecashin@noserose.net" rel="noreferrer noreferrer" target="_blank">ecashin@noserose.net</a>></div></div>
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