On 13-10-11 04:25 PM, Jim Pingle wrote:
They are that small because ALIX is the usual NanoBSD target and it only
has 256MB of RAM so it's a safe low default. NanoBSD wasn't originally
intended to run on device with gobs of RAM, but times are a-changin' and
before long all of the viable new hardware will have >1GB of RAM.
On 2.1 you can adjust the /var and /tmp sizes under System > Advanced on
the Miscellaneous tab.
It might be possible to auto-scale the sizes with a bit of extra logic
in rc.embedded if someone wants to take a crack at it.
Challenge accepted.
I have no idea how to clone the repo and do a pull request, so I'm just
attaching a simple diff instead.
I believe sysctl is available at this point in the boot process. If
not, then the solution will be quite a bit more difficult...
I'm not sure what the point would be in continuing if sysctl *failed*,
but what the heck, I just assume a 256MB machine.
Obviously a lot more special-casing could be done to ensure lower- and
upper-bound cases function correctly; I only handled one simplistic case.
The invocation to get $physmem ensures we don't needlessly fork()/exec()
on an embedded platform.
--
-Adam Thompson
[email protected]
--- rc.embedded.orig 2013-10-11 16:35:10.691385354 -0500
+++ rc.embedded 2013-10-11 17:26:55.779500598 -0500
@@ -8,7 +8,12 @@
if [ ! -z ${USE_MFS_TMP_SIZE} ] && [ ${USE_MFS_TMP_SIZE} -gt 0 ]; then
tmpsize="${USE_MFS_TMP_SIZE}m"
else
- tmpsize="40m"
+ physmem=${physmem:-$(/sbin/sysctl -n hw.physmem)}
+ # in case we can't execute /sbin/sysctl, assume 256MB machine
+ physmem=${physmem:-282563637}
+ tmpsize=$((physmem*15/104857600))
+ if [ $tmpsize -le 40 ]; then varsize=40; fi
+ tmpsize="${tmpsize}m"
fi
# Size of /var
@@ -16,7 +21,11 @@
if [ ! -z ${USE_MFS_VAR_SIZE} ] && [ ${USE_MFS_VAR_SIZE} -gt 0 ]; then
varsize="${USE_MFS_VAR_SIZE}m"
else
- varsize="60m"
+ physmem=${physmem:-$(/sbin/sysctl -n hw.physmem)}
+ physmem=${physmem:-282563637}
+ varsize=$((physmem*25/104857600))
+ if [ $varsize -lt 60 ]; then varsize=60; fi
+ varsize="${varsize}m"
fi
# Run some initialization routines
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