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Bug 20796

Summary:	Patch for String and Integer conversion
Product:	java	Reporter:	Svata Dedic <sdedic>
Component:	Unsupported	Assignee:	issues@java <issues>
Status:	RESOLVED FIXED
Severity:	blocker
Priority:	P3
Version:	3.x
Hardware:	PC
OS:	Linux
Issue Type:	TASK	Exception Reporter:
Attachments:	Patch against trunk sources

Description Svata Dedic 2002-02-22 16:18:55 UTC

The patch prevents the B-tree impl from creating String instances while it is
searching for a String value.
IOUtils contains fast (at least I hope) String <-> UTF-8 conversion, too, which
tries to avoid allocating intermediate objects. Read/write integer was factored
out from read/write methods for ease of use.

Comment 1 Svata Dedic 2002-02-22 16:21:15 UTC

Created attachment 4804 [details]
Patch against trunk sources

Comment 2 Martin Matula 2002-02-24 16:41:03 UTC

Applied. I was surprised that this small change improved the
performance signifacantly. I was comparing the original approach with
yours "pseudo-clean" :) because I was affraid that it will spoil the
code for no big difference, however it showed up that your code for
String (de)serialization is 10x faster than the original one, which
(together with separate serialization methods for int and boolean)
results in about 30% improvement of overall MDR performance! Thanks! :)