| @example |
| @c man begin SYNOPSIS |
| usage: kvm_stat [OPTION]... |
| @c man end |
| @end example |
| |
| @c man begin DESCRIPTION |
| |
| kvm_stat prints counts of KVM kernel module trace events. These events signify |
| state transitions such as guest mode entry and exit. |
| |
| This tool is useful for observing guest behavior from the host perspective. |
| Often conclusions about performance or buggy behavior can be drawn from the |
| output. |
| |
| The set of KVM kernel module trace events may be specific to the kernel version |
| or architecture. It is best to check the KVM kernel module source code for the |
| meaning of events. |
| |
| Note that trace events are counted globally across all running guests. |
| |
| @c man end |
| |
| @c man begin OPTIONS |
| @table @option |
| @item -1, --once, --batch |
| run in batch mode for one second |
| @item -l, --log |
| run in logging mode (like vmstat) |
| @item -t, --tracepoints |
| retrieve statistics from tracepoints |
| @item -d, --debugfs |
| retrieve statistics from debugfs |
| @item -f, --fields=@var{fields} |
| fields to display (regex) |
| @item -h, --help |
| show help message |
| @end table |
| |
| @c man end |
| |
| @ignore |
| |
| @setfilename kvm_stat |
| @settitle Report KVM kernel module event counters. |
| |
| @c man begin AUTHOR |
| Stefan Hajnoczi <stefanha@redhat.com> |
| @c man end |
| |
| @c man begin SEEALSO |
| perf(1), trace-cmd(1) |
| @c man end |
| |
| @end ignore |