<a href="http://download.fedora.redhat.com/pub/epel/5/x86_64/repoview/atop.html">http://download.fedora.redhat.com/pub/epel/5/x86_64/repoview/atop.html</a><br><br>EPEL repo<br><br><div class="gmail_quote">On Fri, Oct 8, 2010 at 1:07 PM, Lightner, Jeff <span dir="ltr"><<a href="mailto:jlightner@water.com">jlightner@water.com</a>></span> wrote:<br>
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<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: navy;">What RHEL repo did you find this in? It
doesn’t seem to be in the standard RHEL5 or CentOS5 repos.</span></font></p>
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<p class="MsoNormal"><b><font size="2" face="Tahoma"><span style="font-size: 10pt; font-family: Tahoma; font-weight: bold;">From:</span></font></b><font size="2" face="Tahoma"><span style="font-size: 10pt; font-family: Tahoma;">
<a href="mailto:ale-bounces@ale.org" target="_blank">ale-bounces@ale.org</a> [mailto:<a href="mailto:ale-bounces@ale.org" target="_blank">ale-bounces@ale.org</a>] <b><span style="font-weight: bold;">On Behalf Of </span></b>Jim Kinney<br>
<b><span style="font-weight: bold;">Sent:</span></b> Friday, October 08, 2010
9:36 AM<div class="im"><br>
<b><span style="font-weight: bold;">To:</span></b> Atlanta
Linux Enthusiasts - Yes! We run Linux!<br>
<b><span style="font-weight: bold;">Subject:</span></b> Re: [ale] Collectl and
other peformance tools</div></span></font></p>
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<p class="MsoNormal" style="margin-bottom: 12pt;"><font size="3" face="Times New Roman"><span style="font-size: 12pt;">the per-process
statistics of atop are exactly the detail level I'm looking for. Many thanks!
It's not a default installed package with RHEL/Fedora but it's in the repos.</span></font></p><div><div></div><div class="h5">
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<p class="MsoNormal"><font size="3" face="Times New Roman"><span style="font-size: 12pt;">On Thu, Oct 7, 2010 at 8:49 PM, Brian Pitts <<a href="mailto:brian@polibyte.com" target="_blank">brian@polibyte.com</a>> wrote:</span></font></p>
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<p class="MsoNormal" style="margin-bottom: 12pt;"><font size="3" face="Times New Roman"><span style="font-size: 12pt;">On 10/07/2010 05:44 PM,
Brian Pitts wrote:<br>
> Atop will change your life.<br>
><br>
> <a href="https://lwn.net/Articles/387202/" target="_blank">https://lwn.net/Articles/387202/</a><br>
></span></font></p>
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<p class="MsoNormal"><font size="3" face="Times New Roman"><span style="font-size: 12pt;">Sorry for the top post earlier, I'm not used to sending email from my<br>
phone. I wanted to take a minute to follow up and further tout the<br>
virtues of atop.<br>
<br>
When your performance monitoring system (be it collectd, xymon, opennms,<br>
or whatever) tells you there's a problem with a server, atop is what you<br>
want to use when you log in to find the problem. It has completely<br>
displaced my use of the sysstat suite of tools. It presents all the<br>
information you could get from sar and pidstat from within the friendly<br>
interface of top. You can view cpu, memory, i/o, and network statistics<br>
at the system and per-process level. You can do this in real time or you<br>
can step through samples recorded earlier. The next time a user<br>
complains about how things were "slow" the day before, you'll be able
to<br>
go back and pinpoint exactly what was happening. Although the<br>
interactive interface is what really shines, if you still need sar style<br>
reports there's atopsar.<br>
<br>
The lwn article I linked to earlier is a great overview of what you can<br>
do with atop. For a more limited but in depth example of using atop this<br>
paper [0] is good. It's also worth reading because the beginning is a<br>
good refresher on virtual memory and the end presents a good use case<br>
for cgroups.<br>
<br>
[0] <a href="http://www.atoptool.nl/download/case_leakage.pdf" target="_blank">http://www.atoptool.nl/download/case_leakage.pdf</a><br>
<br>
--<br>
All the best,<br>
<font color="#888888"><span style="color: rgb(136, 136, 136);">Brian Pitts</span></font></span></font></p>
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