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Feature #9299

open

mds: improve cache lru

Added by Sage Weil over 9 years ago. Updated almost 8 years ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
Performance/Resource Usage
Target version:
-
% Done:

0%

Source:
Development
Tags:
Backport:
Reviewed:
Affected Versions:
Component(FS):
MDS
Labels (FS):
Pull request ID:

Description

it appears to be very easy for a single task/client to push everything out of the cache. we have a stratified lru, but it only has two levels (top and bottom). I wonder if we need an N-layer LRU so that inodes/dentries that are repeatedly hit are hard to push out of the cache.

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 #1

Updated by Sage Weil over 9 years ago

  • Subject changed from mds: improve cache behavior to mds: improve cache lru
  • Description updated (diff)
  • Source changed from other to Development
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 #2

Updated by Sage Weil over 9 years ago

  • Target version deleted (v0.86)
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 #3

Updated by Greg Farnum almost 8 years ago

  • Category set to 47
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 #4

Updated by Greg Farnum almost 8 years ago

  • Category changed from 47 to Performance/Resource Usage
  • Component(FS) MDS added
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