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Feature #4782

osd: build writeback model to replace async flusher

Added by Sage Weil over 6 years ago. Updated over 6 years ago.

Status:
Resolved
Priority:
High
Assignee:
Category:
OSD
Target version:
% Done:

0%

Source:
Development
Tags:
Backport:
Reviewed:
Affected Versions:
Pull request ID:

Description

build a model that includes

- dirty bytes value
- dirty files values
- a cost function of bytes and inodes
- an lru
- a writeback initiator with some threshold (analogous to dirty_background_bytes)
- a writeback blocker with some threshold (analogous to dirty_bytes)

replace the current background flush thing with the above.

set sane defaults for btrfs, xfs that roughly model how expensive inode vs content writes are


Related issues

Related to Ceph - Bug #4579: kclient + ffsb workload makes osds mark themselves down Resolved 03/29/2013

Associated revisions

Revision e21f8df1
Added by Samuel Just over 6 years ago

Merge branch 'wip_osd_throttle'

Fixes: #4782
Reviewed-by: Sage Weil

History

#1 Updated by Sage Weil over 6 years ago

  • Target version set to v0.63

#2 Updated by Sage Weil over 6 years ago

  • Target version changed from v0.63 to v0.64

#3 Updated by Sage Weil over 6 years ago

  • translation missing: en.field_story_points set to 8.00

#4 Updated by Ian Colle over 6 years ago

  • Assignee set to Samuel Just

#5 Updated by Ian Colle over 6 years ago

  • Status changed from New to Testing

#6 Updated by Samuel Just over 6 years ago

  • Status changed from Testing to Resolved

#7 Updated by Sage Weil over 6 years ago

  • Target version changed from v0.64 to v0.65

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