DragonFly users List (threaded) for 2007-05
[
Date Prev][
Date Next]
[
Thread Prev][
Thread Next]
[
Date Index][
Thread Index]
Note on setting higher mbuf and mbuf cluster limits
I've just committed a change to make the kern.ipc.nmbufs and
kern.ipc.nmbclusters sysctl variables read-only. These variables
cannot be adjusted on a running system (like for a year or more now),
they can ONLY be adjusted as boot-time tunables, i.e. via
/boot/loader.conf.
Having the writable sysctls just made all the statistics programs,
like netstat -m, report the modified values when the mbuf allocator
was actually still using the original values. The result: confusion
when someone's network seems to stall out due to having many connections
but netstat -m doesn't report any limits being hit.
-Matt
Matthew Dillon
<dillon@backplane.com>
[
Date Prev][
Date Next]
[
Thread Prev][
Thread Next]
[
Date Index][
Thread Index]