<div dir="ltr"><br><br><div class="gmail_quote">On Tue, Dec 11, 2012 at 7:57 PM, Shachar Shemesh <span dir="ltr"><<a href="mailto:shachar@shemesh.biz" target="_blank">shachar@shemesh.biz</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div>On 12/11/2012 02:35 PM, Orna Agmon
Ben-Yehuda wrote:<br>
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<blockquote type="cite">
<div dir="ltr">Hello Haifuxers,<br>
<br>
Cgroups is a way way to cap specific resource use of
applications. For example, you can read about what DotCloud does
with it:<br>
<a href="http://blog.dotcloud.com/kernel-secrets-from-the-paas-garage-part-24-c" target="_blank">http://blog.dotcloud.com/kernel-secrets-from-the-paas-garage-part-24-c</a>.<br>
Since in the KVM hypervisor each virtual machine is actually a
process, it can also work for virtual machine resource capping.<br>
<br>
Is anybody interested in giving a Haifux talk about Cgroups?<br>
<br>
I will use this opportunity to remind that we still have an open
invitation for a tickless kernel talk.<br clear="all">
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What would you want to know about the tickless kernel? I don't think
it is a particularly large subject to carry a complete talk.<span class="HOEnZb"><font color="#888888"><br></font></span></div></blockquote><div><br><br>How does it work? What is the paradigm change? How should applications behave to make better use of it? How should one profile the use of a tickless kernel?<br>
<br>Gilad Ben-Yossef intended to give a talk about this, as well as some related topics. His abstract (<a href="http://www.haifux.org/lectures/JIFFIE/">http://www.haifux.org/lectures/JIFFIE/</a>) was:<br><br><h1><font>How Time Flies: Jiffies, Hi-Res Timers and the Tickless Kernel - Gilad Ben-Yossef</font></h1>
<font>
</font><h2><font>Abstract</font></h2>
<p>
This lecture, by Gilad Ben-Yossef, describes the Linux time keeping mechanism and related features, covering:
</p><ul><li>Jiffies and HZ: how the Linux kernel measure the passing of time</li><li>Hi-Res Timers: Accuracy and precision of the Linux time keeping code</li><li>Clock sources: abstractions of time keeping hardware</li>
<li>Tick-less kernel: how the above contribute to a better Linux
performance in real time, power consumption and virtualization domains</li></ul><br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div text="#000000" bgcolor="#FFFFFF">
<span class="HOEnZb"><font color="#888888">
<br>
Shachar<br>
<pre cols="72">--
Shachar Shemesh
</pre>
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<br></blockquote></div><br><br clear="all"><br>-- <br>Orna Agmon Ben-Yehuda.<br><a href="http://ladypine.org">http://ladypine.org</a><br>
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