[MDEV-15019] InnoDB: store ReadView on trx - Jira

Details

Type: Task
Status: Closed (View Workflow)
Priority: Major
Resolution: Fixed
Fix Version/s: 10.3.5
Component/s: Storage Engine - InnoDB
Labels:
None

Epic Link:
arm64 optimization

Description

This will allow us to reduce critical section protected by trx_sys.mutex:
1. no need to maintain global m_free list
2. eliminate if (trx->read_view == NULL) condition

On x86_64 sizeof(Readview) is 144 mostly due to padding, sizeof(trx_t) with ReadView is 1200.

Attachments

Issue Links

causes

MDEV-22680 InnoDB trx_sys improvements

Open

Activity

Ascending order - Click to sort in descending order

Sergey Vojtovich created issue - 2018-01-21 08:09

Sergey Vojtovich made changes - 2018-01-21 08:09

Field	Original Value	New Value
Epic Link		MDEV-14442 [ 64369 ]

Sergey Vojtovich made changes - 2018-01-21 09:35

Status

Open [ 1 ]

Confirmed [ 10101 ]

Sergey Vojtovich made changes - 2018-01-21 09:36

Assignee	Sergey Vojtovich [ svoj ]	Marko Mäkelä [ marko ]
Status	Confirmed [ 10101 ]	In Review [ 10002 ]

Sergey Vojtovich made changes - 2018-01-22 12:26

Assignee

Marko Mäkelä [ marko ]

Sergey Vojtovich [ svoj ]

Sergey Vojtovich made changes - 2018-01-22 12:26

Status

In Review [ 10002 ]

Stalled [ 10000 ]

Sergey Vojtovich made changes - 2018-01-22 12:27

Fix Version/s		10.3.5 [ 22905 ]
Fix Version/s	10.3 [ 22126 ]
Resolution		Fixed [ 1 ]
Status	Stalled [ 10000 ]	Closed [ 6 ]

Sergey Vojtovich made changes - 2020-05-23 08:43

Link

This issue causes MDEV-22680 [ MDEV-22680 ]

Sergei Golubchik made changes - 2021-12-06 21:23

Workflow

MariaDB v3 [ 84984 ]

MariaDB v4 [ 133441 ]

People

Assignee:: Sergey Vojtovich

Reporter:: Sergey Vojtovich

Votes:: 0 Vote for this issue

Watchers:: 2 Start watching this issue

Dates

Created:: 2018-01-21 08:09

Updated:: 2020-05-23 08:43

Resolved:: 2018-01-22 12:27

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