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https://github.com/ceph/ceph
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55 lines
1.3 KiB
ReStructuredText
55 lines
1.3 KiB
ReStructuredText
=====================
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Installing Oprofile
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=====================
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The easiest way to profile Ceph's CPU consumption is to use the `oprofile`_
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system-wide profiler.
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.. _oprofile: http://oprofile.sourceforge.net/about/
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Installation
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============
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If you are using a Debian/Ubuntu distribution, you can install ``oprofile`` by
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executing the following::
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sudo apt-get install oprofile oprofile-gui
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Compiling Ceph for Profiling
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============================
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To compile Ceph for profiling, first clean everything. ::
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make distclean
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Then, export the following settings so that you can see callgraph output. ::
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export CFLAGS="-fno=omit-frame-pointer -O2 -g"
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Finally, compile Ceph. ::
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./autogen.sh
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./configure
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make
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You can use ``make -j`` to execute multiple jobs depending upon your system. For
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example::
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make -j4
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Ceph Configuration
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==================
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Ensure that you disable ``lockdep``. Consider setting `logging`_ to
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levels appropriate for a production cluster. See `Ceph Logging and Debugging`_
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for details.
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.. _logging: ../../rados/configuration/log-and-debug-ref
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.. _Ceph Logging and Debugging: ../../rados/configuration/ceph-conf/#ceph-logging-and-debugging
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See the `CPU Profiling`_ section of the RADOS Operations documentation for details on using Oprofile.
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.. _CPU Profiling: ../../rados/operations/cpu-profiling |