Filip Hanik - Dev Lists wrote:
gentlemen, not sure if you had a chance to look this over, but it is
pretty interesting,
after some very basic tests, I get the NIO connector to perform better
than the blocking io connector
the peak data throughput are
NIO - 36,000KB/s
JIO - 35,000KB/s
APR - 24,000KB/s
basic connector config, with maxThreads=150,
./ab -n 500000 -c 100 -k -C
"test=89012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
http://localhost:8080/tomcat.gif
of course, not an all encapsulating test, but the NIO connector used to
always lag behind the JIO connector, in these simple tests. So lets
ignore the numbers, they aren't important.
I am very skeptical about that trick.
As usual, in case someone is still interested, I get opposite results on
my toy O$, with the result being APR > JIO > NIO although all three are
fast enough (unfortunately, I did not try the before/after to see if the
trick did something for me). I also do get a dose of paranormal activity
using the NIO connector.
<Connector port="8080"
protocol="org.apache.coyote.http11.Http11Protocol"
maxThreads="150" connectionTimeout="20000"
redirectPort="8443" />
<Connector port="8081"
protocol="org.apache.coyote.http11.Http11AprProtocol"
maxThreads="150" connectionTimeout="20000"
redirectPort="8443" />
<Connector port="8082"
protocol="org.apache.coyote.http11.Http11NioProtocol"
maxThreads="150" connectionTimeout="20000"
redirectPort="8443" />
BTW, I don't know if you know about it, but the APR and JIO AJP that are
in o.a.coyote.ajp should both be faster than the classic o.a.jk. Of
course, it's not that hard, since the connector is much simpler (and
just does basic AJP).
Rémy
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