On 26-2-2010 13:03, Jeremy Chadwick wrote:
On Fri, Feb 26, 2010 at 10:34:41AM +0100, Willem Jan Withagen wrote:
This is wat netstat -m told me when it refused to revive em0:
Below are the netstat -m counters/lines of concern:
24980/2087/27067 mbufs in use (current/cache/total)
24530/1070/25600/25600 mbuf clusters in use (current/cache/total/max)
55305K/2801K/58106K bytes allocated to network (current/cache/total)
Note how close the "current" value is to that of "total". I'm not too
surprised you're seeing what you are as a result of this. What on earth
is this machine doing at all times?
Comparatively, here's some of our servers' netstat -m stats. All these
boxes do nightly backups to a centralised box on a private gigE network.
All boxes use em(4).
RELENG_7 amd64 2010/01/09 -- primary HTTP, pri DNS, SSH server + ZFS
514/1931/2445 mbufs in use (current/cache/total)
512/540/1052/25600 mbuf clusters in use (current/cache/total/max)
1152K/6394K/7547K bytes allocated to network (current/cache/total)
That's why I wrote that I assumed that the mbuf stats where a result of the
pipe overflowing when the device went down.
(I've seen this discussed in another thread as well)
At the moment off em0-freeze, I was running 4 bitbake compile jobs of our
software tree. That's a lot of small file access, but like you say nothing
really major.
--WjW
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