Steve Lawrence created DAFFODIL-3064:
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Summary: Reduce Future allocation in CLI performance command
Key: DAFFODIL-3064
URL: https://issues.apache.org/jira/browse/DAFFODIL-3064
Project: Daffodil
Issue Type: Bug
Components: CLI, Performance
Reporter: Steve Lawrence
Assignee: Steve Lawrence
Fix For: 4.1.0
The CLI performance command creates N futures, where N is the total number of
files to process. So if we wanted to test the performance of 200,000 files, we
create 200,000 futures.
In profiling, this doesn't seem to make a difference, but all those Future
allocations does make it more difficult to see actual allocations. Instead we
should have just a single Future per thread that loops until all the input
files are processed. Not only does this reduce allocations, it also matches
real world usage, where there is a single serial producer and long running
parallel consumers.
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