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Summary: | Opening of heap dump on linux is very slow | ||
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Product: | profiler | Reporter: | Petr Cyhelsky <cyhelsky> |
Component: | Engine | Assignee: | Tomas Hurka <thurka> |
Status: | RESOLVED FIXED | ||
Severity: | normal | Keywords: | PERFORMANCE, VISUALVM |
Priority: | P2 | ||
Version: | 6.x | ||
Hardware: | PC | ||
OS: | Linux | ||
Issue Type: | DEFECT | Exception Reporter: | |
Bug Depends on: | |||
Bug Blocks: | 181194 |
Description
Petr Cyhelsky
2012-01-25 14:14:16 UTC
This problem is specially visible in a larger heap dumps >600M., where opening heap dump is significantly slower for second half (opening progress is bigger than 50%). The computation of the references is also significantly slower (compared to other Operating systems). Fixed in profiler-main changeset: 211795:3cc3143ce40c user: Tomas Hurka <thurka@netbeans.org> date: Wed Feb 01 13:46:49 2012 +0100 summary: bugfix #207728, use FileChannel.MapMode.PRIVATE on Linux the fix was tested with ~ 1G heap dump and the loading heap dump is now down to 37 seconds from 10 minutes and computation of references is down to 80 sec. from 11 minutes. |