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<p>Hello,</p>
<p>I'm trying to understand behavior of fairshare factor. I set a
munin monitoring for several accounts and observe the changes in
time, and they're not clear for me.</p>
<p>A background:<br>
My users are split into two groups: sfglab and faculty,<br>
in sfglab every one are equal, and in faculty they are
additionally split into project accounts i which they they are
also equal.<br>
</p>
<p>for example:<br>
<font face="monospace">root<br>
sfglab<br>
sfglab_user_1 <br>
sfglab_user_2<br>
...<br>
faculty<br>
project_1<br>
faculty_user_1<br>
faculty_user_2<br>
project_2<br>
faculty_user_1<br>
faculty_user_3<br>
...</font><br>
</p>
<p>I do have 2 particularly active users that run a large jobs in
sfglab, and activity of faculty users is very variable. From very
active to dead souls.<br>
</p>
<p>Now this is fairshare factor for last week:<br>
<br>
<img src="https://i.imgur.com/2sfOUFn.png"
alt="https://i.imgur.com/2sfOUFn.png"><br>
<br>
Image also available on-line:<br>
<a class="moz-txt-link-freetext" href="https://i.imgur.com/2sfOUFn.png">https://i.imgur.com/2sfOUFn.png</a><br>
<br>
</p>
<p>What I would expect there should be rather smooth changes instead
of those high point changes.<br>
I would also expect to see some small constant changes from
PriorityDecayHalfLife, which is set for two weeks and recalculated
every 5 minutes.</p>
<p>It would be great if someone could comment on that, before my
users will start comply on low priority of their jobs.<br>
<br>
Here is my Priority config.<br>
<br>
<font face="monospace">PriorityParameters = (null)<br>
PrioritySiteFactorParameters = (null)<br>
PrioritySiteFactorPlugin = (null)<br>
PriorityDecayHalfLife = 14-00:00:00<br>
PriorityCalcPeriod = 00:05:00<br>
PriorityFavorSmall = No<br>
PriorityFlags = <br>
PriorityMaxAge = 7-00:00:00<br>
PriorityUsageResetPeriod = NONE<br>
PriorityType = priority/multifactor<br>
PriorityWeightAge = 100000<br>
PriorityWeightAssoc = 0<br>
PriorityWeightFairShare = 200000<br>
PriorityWeightJobSize = 0<br>
PriorityWeightPartition = 0<br>
PriorityWeightQOS = 0<br>
PriorityWeightTRES = (null)</font><br>
<br>
</p>
<div class="moz-signature">-- <br>
best regards | pozdrawiam serdecznie<br>
<b>Michał Kadlof</b><br>
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