Re: Building Linux in /dev/shm

vallor <vallor@cultnix.org> wrote at 13:39 this Friday (GMT):

On Fri, 19 Apr 2024 13:30:02 -0000 (UTC), candycanearter07
<candycanearter07@candycanearter07.nomail.afraid> wrote in
<uvtrkq$312kp$1@dont-email.me>:
>

vallor <vallor@cultnix.org> wrote at 02:53 this Friday (GMT):

On Thu, 18 Apr 2024 14:50:03 -0000 (UTC), candycanearter07
<candycanearter07@candycanearter07.nomail.afraid> wrote in
<uvrbur$2ae33$1@dont-email.me>:
>

vallor <vallor@cultnix.org> wrote at 23:41 this Wednesday (GMT):

$ df -h .
Filesystem      Size  Used Avail Use% Mounted on tmpfs           126G
 542M  126G   1% /dev/shm
>
What do you think?  Is it worth it to try building Linux on a
ramdisk?
>
6.8.7 is out now, so I thought I'd try it:
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$ time -p make -j 32 [...]
real 432.09 user 11085.32 sys 2520.37
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That's with a "kitchen sink" build using a .config that originally
came from Linux Mint's "lowlatency" sources.
>
(To set it up, I unpacked the tar file onto /dev/shm -- much faster
than if I'd tried to rsync the unpacked sources.)
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After the build:
$ df -h .
Filesystem      Size  Used Avail Use% Mounted on tmpfs           126G
  23G  103G  19% /dev/shm
>
(Of course, now that I've done this stunt, I'm rsync'ing the tree
onto my NAS, so I'll have it after the reboot.)
>
And there you go: doing Linux stunts, so you don't have to.

 
 
Isn't /tmp usually mounted as a ramdisk?

>
Some distros might do that.  Linux Mint doesn't, and I don't advise it.

 
 
$ findmnt /tmp
 
TARGET SOURCE FSTYPE OPTIONS /tmp   tmpfs  tmpfs
rw,nosuid,nodev,size=8043524k,nr_inodes=1048576,inode64
 
Mine does at least.

>
Interesting.  What distribution are you using?
>
My concern would be filling it up, but that's probably
just my "old school" thinking from back in the day when
computers had much less memory.

EndeavourOS. And I have about 24G ram total (16gb + 8gb swap file) so it
shouldn't be too much of an issue.
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user <candycane> is generated from /dev/urandom