em0 with latest driver hangs again and again (without "Watchdogtimeout" message!)

[Arnaud Lacombe]

Hi,

On Mon, Mar 14, 2011 at 10:17 AM, Özkan KIRIK <ozkan.kirik at gmail.com> wrote:
> Hi Arnaud,
>
> # sysctl kern.ipc.nmbclusters
> kern.ipc.nmbclusters: 262144
>
Well, then this is not surprising em(4) behave well, knowing that it
is unable to handle resource shortage, give it plenty of it and it
will be happy. 200MBps is about 18000 1500bytes packet by seconds. I
will not trust the quality of any code which need 10x more resources
available than needed to do the job. Even 1Gbps should be attainable
with only 128k clusters.

 - Arnaud

> On Mon, Mar 14, 2011 at 4:02 PM, Arnaud Lacombe <lacombar at gmail.com> wrote:
>> Hi,
>>
>> On Fri, Mar 11, 2011 at 9:57 AM, Özkan KIRIK <ozkan.kirik at gmail.com> wrote:
>>> Hi again,
>>>
>>> I wanna share state of test machine. em-7.2.2 driver runs as kld. No hangs.
>>>
>> How high is `nmbclusters' ?
>>
>> Thanks,
>>  - Arnaud
>>
>