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[FB3] Memory Leaks. FB does not release memory after load tests. [CORE5416] #5689

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firebird-issue-importer opened this issue Dec 9, 2016 · 10 comments

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firebird-issue-importer commented Dec 9, 2016

Submitted by: @ibprovider

Block progress on DNET743

Attachments:
fb_image.png
fb_performance.png
firebird.exe.ProcessExplorerData__DLLs.txt
firebird.exe.ProcessExplorerData__Resources.txt
IBP_TEST_FB30_D3.7z

Firebird does not release memory after completion of load tests.

Size of each memory leaks ~ equal to size of page cache

One interest moment:
1. When I execute (sequential) two "load tests set" without pause - FB not releases memory after second set.
@call run_test_w64_local2_d3.bat
@call run_test_w32_local2_d3.bat

Memory leak (approximately) == 3.5 GB

2. When I added a pause (10 min) between runs - I see 2xLeaks.
@call run_test_w64_local2_d3.bat
sleep 10m
@call run_test_w32_local2_d3.bat

Memory leak (approximately) == 7GB

---------------
Database Page: 16KB

Changes in firebird.conf:
DefaultDbCachePages = 200000
UserManager = Srp, Legacy_UserManager
MaxUnflushedWrites = -1
MaxUnflushedWriteTime = -1
WireCrypt = Enabled

----------------
Additional information for attached screenshots - because I executed parallel tests for two databases, memory leaks was multiplied by two and equal (at current moment) to 21GB.

Commits: 889f749 de191b7

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firebird-issue-importer commented Dec 9, 2016

Modified by: @ibprovider

Attachment: fb_image.png [ 13042 ]

Attachment: fb_performance.png [ 13043 ]

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firebird-issue-importer commented Dec 9, 2016

Modified by: @ibprovider

Attachment: firebird.exe.ProcessExplorerData__DLLs.txt [ 13045 ]

Attachment: firebird.exe.ProcessExplorerData__Resources.txt [ 13046 ]

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firebird-issue-importer commented Dec 11, 2016

Commented by: @hvlad

Did you set database linger to some non-zero value at test database ?

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firebird-issue-importer commented Dec 11, 2016

Commented by: @ibprovider

>Did you set database linger to some non-zero value at test database ?

No....

Database was created with default settings.

See attached archive with test database.

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firebird-issue-importer commented Dec 11, 2016

Commented by: @ibprovider

Empty test database for FB3, third dialect.

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firebird-issue-importer commented Dec 11, 2016

Modified by: @ibprovider

Attachment: IBP_TEST_FB30_D3.7z [ 13048 ]

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firebird-issue-importer commented Apr 3, 2017

Modified by: @hvlad

assignee: Vlad Khorsun [ hvlad ]

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firebird-issue-importer commented Apr 5, 2017

Modified by: @cincuranet

Link: This issue block progress on DNET743 [ DNET743 ]

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firebird-issue-importer commented Apr 5, 2017

Modified by: @hvlad

Version: 3.0.1 [ 10730 ]

Version: 3.0.0 [ 10740 ]

Version: 4.0 Initial [ 10621 ]

Fix Version: 4.0 Alpha 1 [ 10731 ]

Fix Version: 3.0.3 [ 10810 ]

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firebird-issue-importer commented Apr 5, 2017

Modified by: @hvlad

status: Open [ 1 ] => Resolved [ 5 ]

resolution: Fixed [ 1 ]

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