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diff --git a/src/ceph/doc/rados/troubleshooting/cpu-profiling.rst b/src/ceph/doc/rados/troubleshooting/cpu-profiling.rst deleted file mode 100644 index 159f799..0000000 --- a/src/ceph/doc/rados/troubleshooting/cpu-profiling.rst +++ /dev/null @@ -1,67 +0,0 @@ -=============== - CPU Profiling -=============== - -If you built Ceph from source and compiled Ceph for use with `oprofile`_ -you can profile Ceph's CPU usage. See `Installing Oprofile`_ for details. - - -Initializing oprofile -===================== - -The first time you use ``oprofile`` you need to initialize it. Locate the -``vmlinux`` image corresponding to the kernel you are now running. :: - - ls /boot - sudo opcontrol --init - sudo opcontrol --setup --vmlinux={path-to-image} --separate=library --callgraph=6 - - -Starting oprofile -================= - -To start ``oprofile`` execute the following command:: - - opcontrol --start - -Once you start ``oprofile``, you may run some tests with Ceph. - - -Stopping oprofile -================= - -To stop ``oprofile`` execute the following command:: - - opcontrol --stop - - -Retrieving oprofile Results -=========================== - -To retrieve the top ``cmon`` results, execute the following command:: - - opreport -gal ./cmon | less - - -To retrieve the top ``cmon`` results with call graphs attached, execute the -following command:: - - opreport -cal ./cmon | less - -.. important:: After reviewing results, you should reset ``oprofile`` before - running it again. Resetting ``oprofile`` removes data from the session - directory. - - -Resetting oprofile -================== - -To reset ``oprofile``, execute the following command:: - - sudo opcontrol --reset - -.. important:: You should reset ``oprofile`` after analyzing data so that - you do not commingle results from different tests. - -.. _oprofile: http://oprofile.sourceforge.net/about/ -.. _Installing Oprofile: ../../../dev/cpu-profiler |