On 09/14/2015 10:44 AM, jean-frederic clere wrote:
On 09/14/2015 10:21 AM, Mark Thomas wrote:
On 14/09/2015 09:16, jean-frederic clere wrote:
Hi,
I have noted that "sendfile" with the NIO connector doesn't fill the CPU
on a load test I am testing HTTP/1.1 with:
sslImplementationName="org.apache.tomcat.util.net.openssl.OpenSSLImplementation"
16 ab creating 80 connections requesting files from 4K to 32M
NIO2 works as excepted with the same configuration but NIO doesn't use
the CPU available on the box.
Any ideas?
Number of Poller threads available?
I am using the default... I will now try 8 (8 processors on the box).
Somehow that didn't help:
+++
745 Exception in thread "https-nio-8003-exec-95" Exception in thread
"https-nio-8003-exec-56" Exception in thread "https-nio-8003-exec-66"
Exception in threa d "https-nio-8003-exec-58" Exception in thread
"https-nio-8003-Acceptor-0" java.lang.OutOfMemoryError: Direct buffer memory
746 at java.nio.Bits.reserveMemory(Bits.java:658)
747 at
java.nio.DirectByteBuffer.<init>(DirectByteBuffer.java:123)
748 at java.nio.ByteBuffer.allocateDirect(ByteBuffer.java:311)
749 at
org.apache.tomcat.util.net.SocketBufferHandler.<init>(SocketBufferHandler.java:38)
750 at
org.apache.tomcat.util.net.NioEndpoint.setSocketOptions(NioEndpoint.java:405)
751 at
org.apache.tomcat.util.net.NioEndpoint$Acceptor.run(NioEndpoint.java:531)
752 at java.lang.Thread.run(Thread.java:745)
753 java.lang.OutOfMemoryError: Direct buffer memory
754 at java.nio.Bits.reserveMemory(Bits.java:658)
755 at
java.nio.DirectByteBuffer.<init>(DirectByteBuffer.java:123)
756 at java.nio.ByteBuffer.allocateDirect(ByteBuffer.java:311)
757 at
org.apache.tomcat.util.buf.ByteBufferUtils.expand(ByteBufferUtils.java:80)
758 at
org.apache.tomcat.util.net.SecureNioChannel.processSNI(SecureNioChannel.java:311)
759 at
org.apache.tomcat.util.net.SecureNioChannel.handshake(SecureNioChannel.java:169)
760 at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1498)
761 at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
762 at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
763 at
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
764 at java.lang.Thread.run(Thread.java:745)
+++
By default -XX:MaxDirectMemorySize=0 (automatic, what is automatic here?)
Any hints?
Cheers
Jean-Frederic
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