andreaslind01 commented on PR #6742:
URL: https://github.com/apache/jmeter/pull/6742#issuecomment-6404359064

   > Hi, I've been following this with great interest. Bringing native HTTP/2 
support to JMeter would be fantastic. May I ask how the asynchronous/parallel 
execution of HTTP/2 samplers will be handled? Will there be a new native 
controller?
   > 
   > Thanks.
   
   Thanks for your interest! HTTP/2 support uses the existing **HTTP Request** 
sampler; it doesn’t introduce a new controller.
   
   A sampler still runs synchronously from the test plan’s perspective, so a 
JMeter thread waits for its response before moving to the next sampler. The 
HTTP/2 client uses asynchronous I/O underneath and can multiplex requests that 
are already concurrent—for example, embedded-resource downloads when concurrent 
downloads are enabled—over one connection.
   
   It doesn’t make separate samplers run in parallel; that would be a separate 
feature.


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