https://issues.apache.org/bugzilla/show_bug.cgi?id=56348
Bug ID: 56348
Summary: ReadListener reading stream on different thread very
slow
Product: Tomcat 8
Version: 8.0.5
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P2
Component: Catalina
Assignee: [email protected]
Reporter: [email protected]
In a ReadListener, if the servlet input stream is read with another thread as
the servlet thread, the upload is very slow.
The following sample application reproduces the problem:
https://github.com/yanns/servlet31_async/tree/async-perf
/upload2 reads the input stream in the servlet thread
/upload forks a new thread that reads the servlet input stream
My measurements:
With tomcat 8.0.5
/upload: 2 minutes
/upload2: 3,8 s
It is expected that /upload is more slow that /upload2, but not with that
difference.
The same tests with jetty:
/upload: 9,5 s
/upload2: 3,7s
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