On Wed, 28 Apr 2021 23:05:35 +0100, antlists wrote: > > There have been several tests posted over the years that show that > > using a tmpfs for TMPDIR doesn't give as much of a gain as you would > > expect. With NVMe drives, the difference is likely to be even > > smaller. > > But that's not the only reason for a tmpfs. I guess the reason tmpfs > doesn't necessarily give much gain is because linux caches everything > so it's quite possible stuff never gets written to disk.
Agreed, but I was only responding to the comment that building on an SSD was no slower than tmpfs. > And I know gentoo does clean up behind itself, but I use tmpfs so the > system cleans up behind it too, and it's got as much room as it needs. I can't agree with the second part, a tmpfs has far less space than a disk. I had a gcc build fail this morning when /tmp filled up. Not because gcc needs more than I had but because another emerge had failed and left a G or two in /tmp. You'll always have more disk space than RAM - embedded aside. -- Neil Bothwick Forget the Joneses...I can't keep up with The Simpsons.
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