Just tested this in 1606, and for User launched Applications, the BITS job is 
still created as FOREGROUND (or Hell for Leather as we like to call it) 
priority…

User launched Package/Programs however come with a BITS priority of LOW – much 
more sensible.

Created a UserVoice item for this – so feel free to vote your asses off..

https://configurationmanager.uservoice.com/forums/300492-ideas/suggestions/15351201-bits-priorities-for-user-initiated-deployments

Easy fix for them ConfigMgr folks ☺

Phil

From: [email protected] [mailto:[email protected]] On 
Behalf Of Andreas Hammarskjöld
Sent: 22 July 2016 08:28
To: [email protected]
Subject: RE: [mssms] Bits and BranchCache revisited

1602 you say, haven’t tested with Apps, could be that they forgot to reset 
that. So maybe the good ol’ (not RTM yet) does have a fix for you.

//A

From: [email protected]<mailto:[email protected]> 
[mailto:[email protected]] On Behalf Of Jay Marsett
Sent: den 22 juli 2016 01:07
To: [email protected]<mailto:[email protected]>
Subject: RE: [mssms] Bits and BranchCache revisited


Phil,

So far all of our testing is with Windows 7, as that is 9/10ths of the current 
system footprint.  We do have the "goldilocks" patches for bits in win 7 
applied in the test images.

We are also using the GPO based Bits policy, I believe using the "win7" bits 
version policy, but will double check tomorrow. We also have the "ignore" 
policies for subnet transfers, in the gpo. Definitely not using configmgr based 
Bits policy.

Will try what you suggested about testing the branchcach via IE from our 
troubled system, was not something that had occurred to me.

Thanks again everybody.
On Jul 21, 2016 17:53, "Phil Wilcock" 
<[email protected]<mailto:[email protected]>> wrote:
Pretty sure that the Foreground issue was fixed in Current Branch.

Also relevant is the OS version and the type of policy that you are using – if 
Win7 there are a couple of hotfixes that you need that stop BITS from ignoring 
policy, and even in Win10 there were still some minor bugs until recent builds 
affecting BITS policy. Using the built-in ConfigMgr policy is not as effective 
as using the newer policies for Work and Maintenance schedules, which also 
allow you to specify that peer transfers using BranchCache ignore the rate 
limits if on the same subnet..

Regarding the machine that’s going back to the DP – check the BITS log for 
errors, and try to grab the same content using IE and see if BranchCache 
behaves the same.

Phil



From: [email protected]<mailto:[email protected]> 
[mailto:[email protected]<mailto:[email protected]>] 
On Behalf Of Jay Marsett
Sent: 21 July 2016 18:57

To: [email protected]<mailto:[email protected]>
Subject: [mssms] Bits and BranchCache revisited

Finally have some real feedback about BranchCache and BITS.  Got our site built 
and began unit testing, What we found so far;

1. Seems like all Package and Program downloads are BITS background transfers, 
so they follow rate limits, however, User initiated Application downloads STILL 
happen in the foreground.  Anyone seen any documentation that explains that?

2. Seeing a single test machine that randomly seems to have issues as large 
transfers from Branchcache are occuring.  The system becomes unstable, freezes 
as the hybrid drive software (lenovo expresscache) seems to peg the HD, as this 
is occuring, the transfer from cache seems to stop, and it begins to transfer 
from the DP.  Then randomly, back to the BranchCache.  Seems to happen with any 
type of "Cacheable" content, but only user initiated Application installs seem 
to ignore the BITS rate limits. Anyone seen this behavior?  Have any 
documentation that can explain it?

We haven't yet debugged the problem laptop yet, but theoretically, all of our 
test systems are identical.

Long story short, it makes it impossible to use self service with the 
AppCatalog if we can't reasonably plan for when this type of issue might occur 
in this BranchCache with BITS model.  If all Application based pushes need to 
be background, we can't use self service.

Please let me know your thoughts.





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