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[clarknova]

I ran kern.ipc.nmbclusters="131072" on an amd64 machine with 4GB RAM with no problem, due to mbuf numbers steadily climbing. When your mbuf number hits the set value of that variable, everything stops.

[wallacebw]

@CMB:

Understood, but if these sysctls commands are executed at startup, wouldn't this effectively have the same impact for this particular entry given that the buffers don't fill up that quickly and can be modified post-boot?

I would like to have it in the config so that If i forget to modify the loader after an upgrade, the setting still gets applied.

[Gloom]

It used to work several months ago when you added it in there then it stopped for some reason I can't remember, there is a post about it you might be able to find. So now I just stick it in /boot/loader.conf.local and remember to set it after each update.

[stephenw10]

If you put it in /boot/loader.conf.local it should get copied across an update automatically.

Steve

[wallacebw]

If you put it in /boot/loader.conf.local it should get copied across an update automatically.

Steve

I just tested and can confirm.   Good info... Thanks!
This should make it into the next guide book.  I didn't see any mention of it in the 1.2.3 book. 

[wallacebw]

I updated the first port with issue details and resolution steps.  please feel free to let me know if I have any inaccuracies / bad advice listed.   

Thanks again.