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Performance regression when restoring database with big metadata [CORE2634] #3042

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firebird-issue-importer opened this issue Sep 18, 2009 · 6 comments

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@firebird-issue-importer

Submitted by: @AlexPeshkoff

Relate to CORE3079

Restore of metadata only backup for database with about 100 000 records in RDB$FIELDS runs approximately 20-25 times longer on 2.X compared with 1.5.

According to Dmitry, the reason is new type of deferred work, added in 2.0, which is posted after any insert of the record into RDB$FIELDS table. Time is wasted when workign with DFW is stored in linear linked list.

Commits: b19dace d1d8b30 57b4001

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@firebird-issue-importer firebird-issue-importer commented Sep 18, 2009

Modified by: @AlexPeshkoff

assignee: Alexander Peshkov [ alexpeshkoff ]

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@firebird-issue-importer firebird-issue-importer commented Sep 18, 2009

Modified by: @AlexPeshkoff

Fix Version: 2.1.4 [ 10361 ]

summary: Performance regression when restoring database with bug metadata. => Performance regression when restoring database with big metadata

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@firebird-issue-importer firebird-issue-importer commented Sep 29, 2009

Modified by: @AlexPeshkoff

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

resolution: Fixed [ 1 ]

Fix Version: 2.5 RC1 [ 10362 ]

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@firebird-issue-importer firebird-issue-importer commented Nov 12, 2009

Modified by: @pcisar

status: Resolved [ 5 ] => Closed [ 6 ]

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@firebird-issue-importer firebird-issue-importer commented Jul 26, 2010

Modified by: @hvlad

Link: This issue relate to CORE3079 [ CORE3079 ]

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@firebird-issue-importer firebird-issue-importer commented Jan 18, 2016

Modified by: @pavel-zotov

QA Status: No test

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