[Users] opensm params

Black.S Black.S52 at yandex.ru
Fri Sep 15 10:38:32 PDT 2017


Thanks

15.09.2017 20:26, Hal Rosenstock пишет:
> There are 2 parameters:
>
> # The maximal time a packet can wait at the head of
> # transmission queue.
> # The actual time is 4.096usec * 2^<head_of_queue_lifetime>
> # The value 0x14 disables this mechanism
> head_of_queue_lifetime 0x12
>
> # The maximal time a packet can wait at the head of queue on
> # switch port connected to a CA or router port
> leaf_head_of_queue_lifetime 0x10
>
> head_of_queue_lifetime is used on switch ports whose peer is a switch 
> port. leaf_head_of_queue_lifetime is used on switch ports whose peer 
> is not a switch port.
>
> The other related parameter is the switch LifeTimeValue which is:
> # The code of maximal time a packet can live in a switch
> # The actual time is 4.096usec * 2^<packet_life_time>
> # The value 0x14 disables this mechanism
> packet_life_time 0x12
>
>
> These parameters affect packet discarding and can affect performance.
>
> -- Hal
>
>
>
>
>
>
>
>
> On Fri, Sep 15, 2017 at 12:55 PM, Black.S <Black.S52 at yandex.ru 
> <mailto:Black.S52 at yandex.ru>> wrote:
>
>     Oh sorry
>     I am very newbie in maillist
>     I want to write to
>     http://lists.openfabrics.org/pipermail/users/2017-June/thread.html
>     <http://lists.openfabrics.org/pipermail/users/2017-June/thread.html>
>
>     My question is
>
>
>     Does performance affect the opensm.conf parameter "HOQ /Lifetime/
>     Limit " ?
>
>     in which case this parameter be changed?
>
>
>     15.09.2017 19:39, Hal Rosenstock пишет:
>>     I don't understand the question. What OpenSM parameters are you
>>     asking about ?
>>
>>     -- Hal
>>
>>     On Fri, Sep 15, 2017 at 11:58 AM, Black.S <Black.S52 at yandex.ru
>>     <mailto:Black.S52 at yandex.ru>> wrote:
>>
>>         Hi all
>>
>>         Sorry for the late question
>>
>>         Does performance affect the lifetime of the package ?
>>
>>         Under what circumstances should this parameter be changed?
>>
>>
>>
>>         _______________________________________________
>>         Users mailing list
>>         Users at lists.openfabrics.org <mailto:Users at lists.openfabrics.org>
>>         http://lists.openfabrics.org/mailman/listinfo/users
>>         <http://lists.openfabrics.org/mailman/listinfo/users>
>>
>>
>
>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openfabrics.org/pipermail/users/attachments/20170915/769aaf3f/attachment.html>


More information about the Users mailing list