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Bug 253716

Summary:	[newcodemodel] performance regression 4x
Product:	cnd	Reporter:	Alexander Simon <alexvsimon>
Component:	Code Model	Assignee:	Vladimir Voskresensky <vv159170>
Status:	RESOLVED FIXED
Severity:	normal	Keywords:	REGRESSION
Priority:	P2
Version:	8.1
Hardware:	All
OS:	All
Issue Type:	DEFECT	Exception Reporter:

Description Alexander Simon 2015-07-24 08:05:54 UTC

According to performance tests "openjdk-perf-linux" IDE has a significant performance degradation.
Memory footprint for JDK project increased on 70%.
Parsing speed decreased in 4 times.
This is example of performance report before:
Threads	Memory	Speed (LPS)
1	443	22808
2	423	27774
4	363	31920
This is current state:
Threads	Memory (regression)	Speed (LPS) (regression)
1	779 (x1.76)		5275 (x4.3)
2	653 (x1.54)		6560 (x4.2)
4	692 (x1.91)		6143 (x5.2)

Comment 1 Quality Engineering 2015-07-29 01:30:12 UTC

Integrated into 'main-silver', will be available in build *201507290002* on http://bits.netbeans.org/dev/nightly/ (upload may still be in progress)

Changeset: http://hg.netbeans.org/main-silver/rev/98f03852e7bc
User: Vladimir Voskresensky <vv159170@netbeans.org>
Log: fixing #253716 - [newcodemodel] performance regression 4x
- share memory buffers
- reduce memory allocs

Comment 2 Alexander Simon 2015-08-16 18:11:26 UTC

I see small progress in parsing speed.
But it still 4x regression

Comment 3 Vladimir Voskresensky 2015-08-17 11:02:52 UTC

Please, file another bug with updated numbers. This one was used to push changes into 8.1 Beta