SMP Documentation

bycn82 bycn82 at
Thu Jan 22 19:49:45 PST 2015

*this is the feature I like, also the reason why I am here :)*

*Bill Yuan*

On 23 January 2015 at 10:47, Matthew Dillon <dillon at> wrote:

> There is no comprehensive document.  Our approaches are somewhat different
> (and very different in the network subsystems).  Our hybrid cpu
> localization (which can be lockless) and fine-grained locking model seems
> to be able to avoid nearly all potential SMP conflicts and is probably a
> bit more cache-friendly than FreeBSDs model.
> -Matt
> On Mon, Jan 19, 2015 at 3:05 AM, Arjun Suresh Raji <arjun1296 at>
> wrote:
>> Hi ,
>> I have just started using DragonFly BSD.
>> I am just curious if I could find some documentation on how Dfly differs
>> with FreeBSD on SMP initiatives. When going through some documents I read
>> words like big kernel lock and fine-grained locks. Apart from the buzz
>> words I was not able get any documentation on those.
>> And how different kernels behave with different sets of workload?
>> Can anyone point me to some documents on this.
>> Kindly help me.
>>         - Arjun Suresh
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