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virsh: Rework the perf event names into a table. 

Should be easier to read
This commit is contained in:
John Ferlan 2016-08-03 12:30:01 -04:00
parent 29b2f253af
commit 6a0e41519c
1 changed files with 14 additions and 9 deletions
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@ -2225,16 +2225,21 @@ from different sources can be supported by perf.
Currently only QEMU/KVM supports this command. The I<--enable> and I<--disable>
option combined with B<eventSpec> can be used to enabled or disable specific
performance event. B<eventSpec> is a string list of one or more events
separated by commas. Valid event names are "cmt", "mbmt", "mbml".
CMT is a PQos (Platform Qos) feature to monitor the usage of cache by
applications running on the platform.
MBM (Memory Bandwidth Monitoring) provides a way to monitor the Total
system memory bandwidth between one level of cache and another (mbmt)
and the amount of data (bytes/s) sent through the memory controller on
the socket (mbml).
separated by commas. Valid event names are as follows:
The statistics can be retrieved using the B<domstats> command using the
I<--perf> flag.
B<Valid perf event names>
cmt - A PQos (Platform Qos) feature to monitor the
usage of cache by applications running on the
platform.
mbmt - Provides a way to monitor the total system
memory bandwidth between one level of cache
and another.
mbml - Provides a way to limit the amount of data
(bytes/s) send through the memory controller
on the socket.
B<Note>: The statistics can be retrieved using the B<domstats> command using
the I<--perf> flag.
If I<--live> is specified, affect a running guest.
If I<--config> is specified, affect the next boot of a persistent guest.