[ofw] Doing queries on subnet every 30 seconds

[Smith, Stan]

Hello,
  Please see below.

>-----Original Message-----
>From: Tzachi Dar [mailto:tzachid at mellanox.co.il]
>Sent: Wednesday, June 01, 2011 2:09 PM
>To: Smith, Stan; Hefty, Sean; Fab Tillier; ofw at lists.openfabrics.org
>Subject: RE: Doing queries on subnet every 30 seconds
>
>It seems to me that this discussion is somewhat theoretical. There is currently no one in the community that is actually working on new
>features for SRP. Once we have an active maintainer he can try and implement all the important ideas that we had in this discussion and
>check them in real life.

Curious view...

You and others identified a 'real' fabric scaling problem (periodic ioc rescans).

Your proposed solution completely invalidates any IOC operation without per system registry adjustments - thus your proposed changes will generate a less than previous winOFED out-of-the-box customer experience for those who would attempt to use a fabric connected device (few they may be).

I'm attempting to find a solution which is not a quick-fix such that existing IOC behavior is maintained thus preventing an IOC interested customer from experiencing less functionality than what they received in previous WinOF/winOFED releases.

I have a working SRP target on a Linux box, hence SRP testing is planned to validate an on-demand IOC rescan design in the SRP environment.

Without question an active SRP maintainer would be a welcome addition.

Since we do not have an active SRP maintainer, I am willing to do the IOC rescan implementation work to maintain the current level of IOC/IOU functionality.

Stan.

>
>Doing changes now, without an SRP target to test them will very likely lead to bad customer experience.
>
>Thanks
>Tzachi
>
>> -----Original Message-----
>> From: Smith, Stan [mailto:stan.smith at intel.com]
>> Sent: Wednesday, June 01, 2011 11:46 PM
>> To: Hefty, Sean; Fab Tillier; Tzachi Dar; ofw at lists.openfabrics.org
>> Subject: RE: Doing queries on subnet every 30 seconds
>>
>> >-----Original Message-----
>> >From: Hefty, Sean
>> >Sent: Wednesday, June 01, 2011 1:44 PM
>> >To: Smith, Stan; Fab Tillier; Tzachi Dar; ofw at lists.openfabrics.org
>> >Subject: RE: Doing queries on subnet every 30 seconds
>> >
>> >> Thoughts on the subject?
>> >
>> >Avoid the overhead of having a periodic timer run endlessly with nothing to
>> do 99.999934% of the time.
>>
>> I would not disagree.