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Issue #7212

Updated by bmbouter over 4 years ago

There are reports that the download concurrency is too high, like this one:    https://pulp.plan.io/issues/7186#note-4 

 So we should lower the concurrency limit. We need to balance the stability gained from a lower concurrency against the lost speeds from parallel fetching. 

 Can someone measure the runtime of a `policy=immediate` sync with the following download_concurrency values: 

 20, 15, 10, 7, 5, 20 
 15 
 10 
 7 
 5 
 3 

 Pulp2 had a value of 5. Other download softwares like bandersnatch have a value of 3, so one of those is the most likely choice. We should understand how the performance degrades though so running this test would be nice.

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