Bug 1174 - Using load figure leads to bad load balancing if iowait is high.
Summary: Using load figure leads to bad load balancing if iowait is high.
Alias: None
Product: ThinLinc
Classification: Unclassified
Component: VSM Server (show other bugs)
Version: trunk
Hardware: PC Linux
: P2 Normal
Target Milestone: MediumPrio
Assignee: Pierre Ossman
Keywords: focus_loadbalancer, interesting_210
Depends on:
Blocks: 4429
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Reported: 2005-03-15 15:43 CET by Erik Forsberg
Modified: 2017-02-14 15:01 CET (History)
0 users

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Acceptance Criteria:


Description Erik Forsberg cendio 2005-03-15 15:43:06 CET
When using local drives, the load figure can be very high due to programs
waiting for files/directories residing on local drives that have been disconnected.

This leads to bad load balancing. A server that has 15 in load may very well
have place for more new sessions than a server that has 3 in load.

We should investigate if there is a better way of finding out how much CPU is used.
Comment 1 Peter Åstrand cendio 2005-05-03 10:47:53 CEST
If easy, solve to 1.5. 
Comment 2 Pierre Ossman cendio 2007-02-15 13:07:18 CET
We should probably use CPU time instead (which you can read from /proc/stat).
This also allows us to take into account io to local drives and ignore network
Comment 3 Peter Åstrand cendio 2008-04-04 13:35:27 CEST
Investigate, but perhaps not to 2.1.0 if hard. 
Comment 4 Pierre Ossman cendio 2008-04-24 13:18:57 CEST
Time est is just how long time we're willing to devote for this cycle.

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