On Tue, Jan 24, 2017 at 03:26:42PM +0100, Alexander Bluhm wrote:
> On Tue, Jan 24, 2017 at 05:46:31PM +1000, David Gwynne wrote:
> > > Apart from the problem that I don't know wether the mutex kills
> > > performance, the diff looks good.
> >
> > the tests ive done and simon mages has done show a
On Tue, Jan 24, 2017 at 05:46:31PM +1000, David Gwynne wrote:
> > Apart from the problem that I don't know wether the mutex kills
> > performance, the diff looks good.
>
> the tests ive done and simon mages has done show a slight benefit.
> id expect to see that grow as we use pools more concurren
On Tue, Jan 24, 2017 at 02:55:50AM +0100, Alexander Bluhm wrote:
> On Wed, Dec 14, 2016 at 03:52:32PM +1000, David Gwynne wrote:
> > > Wouldn't it make sense to use atomic operations to keep track of the
> > > amount of memory that was allocated?
> >
> > the mtx may be slow, but it is a slow path
On Wed, Dec 14, 2016 at 03:52:32PM +1000, David Gwynne wrote:
> > Wouldn't it make sense to use atomic operations to keep track of the
> > amount of memory that was allocated?
>
> the mtx may be slow, but it is a slow path id like to keep simple.
Is allocate and free of mbuf clusters in the slow
> On 22 Nov 2016, at 21:20, Mark Kettenis wrote:
>
>> Date: Tue, 22 Nov 2016 12:42:39 +1000
>> From: David Gwynne
>>
>> right now pools that make up mbufs are each limited individually.
>>
>> the following diff instead has the mbuf layer have a global limit
>> on the amount of memory that can
It seems netstat -m is not printing the correct results with this
diff. The max values is wrong.
# sysctl kern.maxclusters
kern.maxclusters=262144
# netstat -m
9543 mbufs in use:
8044 mbufs allocated to data
1491 mbufs allocated to packet headers
8 mbufs allocated to socke
> Date: Tue, 22 Nov 2016 12:42:39 +1000
> From: David Gwynne
>
> right now pools that make up mbufs are each limited individually.
>
> the following diff instead has the mbuf layer have a global limit
> on the amount of memory that can be allocated to the pools. this
> is enforced by wrapping th
right now pools that make up mbufs are each limited individually.
the following diff instead has the mbuf layer have a global limit
on the amount of memory that can be allocated to the pools. this
is enforced by wrapping the multi page pool allocator with something
that checks the mbuf memory limi
