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Type: Enhancement
Resolution: Fixed
Priority: P3
Fix Version/s: 6u14
Affects Version/s: 6, 7
Component/s: core-libs
Labels:
- 6u14-yes-b01
- performance

Subcomponent:
java.math
Resolved In Build:
b01
CPU:

generic, x86
OS:

generic, solaris_nevada, windows_xp

Issue	Fix Version	Assignee	Priority	Status	Resolution	Resolved In Build
JDK-2172334	7	Xiaobin Lu	P3	Resolved	Fixed	b62
JDK-2202264	OpenJDK6	Joe Darcy	P4	Resolved	Fixed	b21

The profiling results from running derby benchmark inside SPECJvm2007 shows significant performance issue in our implementation of BigDecimal code. Here are couple hot methods showing inside both Sun & other profiling tools:

*setScale
*precision
*BigDecimal(...) /* various constructors. */

The other data point from some low level profiling tool shows we have significant higher number of division/multiplication operations than some of our competitors.

backported by

JDK-2172334 RFE: Performance improvements to java.math.BigDecimal

Resolved

JDK-2202264 RFE: Performance improvements to java.math.BigDecimal

Resolved

duplicates

JDK-6348370 java.math.BigInteger is *not* thread-safe immutable

Closed

JDK-6832035 BigInteger and MutableBigInteger should use Integer bit-twiddling methods

Closed

relates to

JDK-6837951 Incorrect answer while summing serialized / deserialized BigDecimals

Resolved

JDK-6819773 BigDecimal.divide(BigDecimal,int,int) throws ArrayIndexOutofBoundsException under some circumstances

Resolved

JDK-6838776 Defer initialization of static fields in java.math.BigInteger

Closed

JDK-8245304 Re-examine ThreadLocal usage in java.math.BigDecimal

Resolved

JDK-6806261 BigDecimal.longValueExact() method throws NullPointerException

Resolved

JDK-6876282 BigDecimal's divide(BigDecimal bd, RoundingFormat r) produces incorrect result

Closed

JDK-8035279 Clean up internal deprecations in BigInteger

Closed

JDK-2169668 java.math.BigInteger.ZERO.multiply(null)

Resolved

(7 relates to)

Assignee:: Xiaobin Lu (Inactive)

Reporter:: Xiaobin Lu (Inactive)

Votes:: 0 Vote for this issue

Watchers:: 6 Start watching this issue

Created:: 2007-10-26 19:14

Updated:: 2020-08-11 16:02

Resolved:: 2009-01-30 14:46

Imported:: 15/Sep/12 11:54 PM

Indexed:: 17/Jul/12 8:04 PM

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