Object-server: keep SLO manifest files in page cache.

Code Issues Proposed changes

Currently, SLO manifest files will be evicted from page cache
after reading it, which cause hard drives very busy when user
requests a lot of parallel byte range GETs for a particular
SLO object.
This patch will add a new config 'keep_cache_slo_manifest', and
try keeping the manifest files in page cache by not evicting them
after reading if config settings allow so.
Co-Authored-By: Tim Burke <tim.burke@gmail.com>
Co-Authored-By: Clay Gerrard <clay.gerrard@gmail.com>
Co-Authored-By: Alistair Coles <alistairncoles@gmail.com>
Change-Id: I557bd01643375d7ad68c3031430899b85908a54f

This commit is contained in:

Jianjian Huo

2023年06月05日 11:09:27 -07:00

parent 1b7cf29476

commit cb1e584e64

5 changed files with 202 additions and 3 deletions

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5
etc/object-server.conf-sample

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@@ -143,6 +143,11 @@ use = egg:swift#object

# if small enough

# keep_cache_private = false

#

# If true, SLO object's manifest file for GET requests may be kept in buffer cache

# if smaller than 'keep_cache_size'. And this config will only matter when

# 'keep_cache_private' is false.

# keep_cache_slo_manifest = false

#

# on PUTs, sync data every n MB

# mb_per_sync = 512

#

Object-server: keep SLO manifest files in page cache.

5 etc/object-server.conf-sample Unescape Escape View File

5
etc/object-server.conf-sample

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