[#CORE-1469] Improve performance of database file growth after CORE-1228 was fixed

Firebird Core

Improve performance of database file growth after CORE-1228 was fixed

Created: 18/Sep/07 04:07 AM Updated: 19/Jan/16 05:02 AM

Component/s:

None

Affects Version/s:

2.1 Beta 1

Fix Version/s:

2.1 Beta 2

Issue Links:

Depend

This issue block progress on:

~~CORE-4445~~ Extend main database file faster when physical backup state changed from stalled to merge

Relate

This issue relate to:

~~CORE-4443~~ Use fast file grow on those Linux systems which supports it

This issue is related to:

~~CORE-1228~~ Database often became corrupted after an out of disk space condition

QA Status:

No test

Sub-Tasks:

All

Open

1.	~~Windows implementation~~		Closed	Vlad Khorsun
2.	~~Posix implementation~~		Closed	Alexander Peshkov

Description

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~~CORE-1228~~ introduced one aditional write of every new allocated page to ensure there are space on disk for it.
This degrade performance when FW = ON. It can be improved if new pages will be written in relatively large groups.
Testing show that one single write of 128-512KB is much faster then 16-64 writes by 8KB

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