Bug ID: JDK-6807602 Increase MAX_BUFFER_LEN and MAX_HEAP_BUFFER

Type: Bug
Component: core-libs
Sub-Component: java.net
Affected Version: 7

Priority: P3
Status: Resolved
Resolution: Fixed
OS: generic
CPU: generic

Submitted: 2009-02-19
Updated: 2010-12-08
Resolved: 2009-06-22

Versions (Unresolved/Resolved/Fixed)

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JDK 6	JDK 7
6u14Fixed	7 b62Fixed

EVALUATION Changeset: http://hg.openjdk.java.net/jdk7/tl/jdk/rev/928e0f1043e6
29-05-2009
EVALUATION Webrev: http://cr.openjdk.java.net/~chegar/6807602/webrev.00/webrev/ Code Review: http://mail.openjdk.java.net/pipermail/net-dev/2009-May/000868.html
29-05-2009
EVALUATION This change increases the stack allocated buffer, MAX_BUFFER_LEN, from 8k to 64k, and the c heap allocated buffer, MAX_HEAP_BUFFER_LEN, from 64k to 128k, for 64bit Solaris and Linux.
20-02-2009
EVALUATION Increase MAX_HEAP_BUFFER_LEN to 128k on 64-bit Solaris.
19-02-2009
SUGGESTED FIX ************* * 112,123 **** --- 112,128 ---- /* * Its safe to increase the buffer to 8K, this gives a 5-20% * performance boost on volano and overall socket performance. */ + #ifdef _LP64 + #define MAX_BUFFER_LEN 65536 + #define MAX_HEAP_BUFFER_LEN 131072 + #else #define MAX_BUFFER_LEN 8192 #define MAX_HEAP_BUFFER_LEN 65536 + #endif #ifdef AF_INET6 #ifdef __linux__ #define SOCKADDR union { \
19-02-2009

Relates :	JDK-6444633 - Increase the native socket buffer size.
Relates :	JDK-7079763 - Shouldn't socketoutputstream_socketwrite throw a stackoverflowexception?
Relates :	JDK-7059899 - Stack overflows in Java code cause 64-bit JVMs to exit due to SIGSEGV