Bug 151931

Summary:	kernel 1191 doesn't effectively cache using highmem, or has some other balancing issue
Product:	[Fedora] Fedora	Reporter:	Bill Nottingham <notting>
Component:	kernel	Assignee:	Dave Jones <davej>
Status:	CLOSED WORKSFORME	QA Contact:	Brian Brock <bbrock>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	rawhide	CC:	pfrields, rvokal, wtogami
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2005-04-20 03:05:15 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Bill Nottingham 2005-03-23 17:36:53 UTC

Description of problem:

Laptop with 1.5GB of memory.

When using 1191.FC4, cache is not effectively used. 

LowFree is 8-12MB
HighFree is 312-400MB

and cache is constantly being evicted (for example, open mailbox A. Close it,
go to a different mailbox. Go back to A. A is no longer in cache.).

Going back to 1177.FC4 makes things much better:

...
Cached:         295248 kB
SwapCached:          0 kB
Active:         179756 kB
Inactive:       256464 kB
HighTotal:      654720 kB
HighFree:       239616 kB
LowTotal:       899440 kB
LowFree:        456008 kB
...


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Comment 1 Bill Nottingham 2005-04-20 03:05:15 UTC

Didn't reoccur. *shrug*