Some performance measurements on the FreeBSD network stack
kmacy at freebsd.org
Thu Apr 19 21:37:20 UTC 2012
On Thu, Apr 19, 2012 at 11:27 PM, Andre Oppermann <andre at freebsd.org> wrote:
> On 19.04.2012 23:17, K. Macy wrote:
>>>> This only helps if your flows aren't hitting the same rtentry.
>>>> Otherwise you still convoy on the lock for the rtentry itself to
>>>> increment and decrement the rtentry's reference count.
>>> The rtentry lock isn't obtained anymore. While the rmlock read
>>> lock is held on the rtable the relevant information like ifp and
>>> such is copied out. No later referencing possible. In the end
>>> any referencing of an rtentry would be forbidden and the rtentry
>>> lock can be removed. The second step can be optional though.
>> Can you point me to a tree where you've made these changes?
> It's not in a public tree. I just did a 'svn up' and the recent
> pf and rtsocket changes created some conflicts. Have to solve
> them before posting. Timeframe (early) next week.
Ok. Keep us posted.
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