<div dir="ltr"><div class="gmail_default" style="font-family:trebuchet ms,sans-serif">I recall my first kernel compile on an 8 way opteron dual core system. with its 64 GB of ram. the first one was fast. the second one was ludicrous when all the options were enabled correctly.</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, May 15, 2018 at 11:07 AM, Matt Graham <span dir="ltr"><<a href="mailto:mhgraham@crow202.org" target="_blank">mhgraham@crow202.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">On 2018-05-15 08:04, <a href="mailto:techlists@phpcoderusa.com" target="_blank">techlists@phpcoderusa.com</a> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Back in the day.... about 23 years ago I had a friend who wrote<br>
custom desktop software written in C. I think he told me his C program<br>
would take an hour or more to compile. Back then he was running an<br>
Intel CPU running at (I hope I get this right) 133MHz with maybe 4M of<br>
RAM. That was state of the art back then.<br>
<br>
I wondering what compile times might look like on modern hardware?<br>
</blockquote>
<br></span>
For that particular program, much faster. If it'd even compile. A 2.2.10 Linux kernel compiled in ~20 minutes on a P150 with 32M in 1999. Curiously, it's about 19 minutes for "make clean && make bzImage modules" on a 4.11 kernel on a 4-core 3.2Ghz machine with 8G, but then the number of device drivers has gone way, way up in 19 years. More RAM up to a point usually increases compilation speed the fastest.<span class="HOEnZb"><font color="#888888"><br>
<br>
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