1boot-benchmark(1)           Virtualization Support           boot-benchmark(1)
2
3
4

NAME

6       boot-benchmark - Benchmark the time taken to boot the libguestfs
7       appliance
8

SYNOPSIS

10        ./run utils/boot-benchmark/boot-benchmark
11

DESCRIPTION

13       Benchmark the time taken to boot the libguestfs appliance.
14
15       It is essentially the same as doing:
16
17        time guestfish -a /dev/null run
18
19       except that it warms up the caches and repeats the test many times,
20       printing out the mean time and standard deviation.
21
22       This needs to be run on a quiet machine, so that other processes
23       disturb the timing as little as possible.  The program is completely
24       safe to run at any time.  It doesn't read or write any external files,
25       and it doesn't require root.
26
27       You can run it from the build directory on the built copy of libguestfs
28       like this:
29
30        make
31        ./run utils/boot-benchmark/boot-benchmark
32
33       If you omit "./run" then it is run on the installed copy of libguestfs.
34

OPTIONS

36       --help
37           Display brief help.
38
39       --append "OPTIONS"
40           Append "OPTIONS" to the kernel command line.
41
42       -m MB
43       --memsize MB
44           Set the appliance memory size in MB.
45
46       --smp N
47           Enable "N" virtual CPUs.
48

SEE ALSO

50       guestfs-performance(1), http://libguestfs.org/.
51

AUTHOR

53       Richard W.M. Jones http://people.redhat.com/~rjones/
54

56       Copyright (C) 2016 Red Hat Inc.
57

LICENSE

59       This program is free software; you can redistribute it and/or modify it
60       under the terms of the GNU General Public License as published by the
61       Free Software Foundation; either version 2 of the License, or (at your
62       option) any later version.
63
64       This program is distributed in the hope that it will be useful, but
65       WITHOUT ANY WARRANTY; without even the implied warranty of
66       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
67       General Public License for more details.
68
69       You should have received a copy of the GNU General Public License along
70       with this program; if not, write to the Free Software Foundation, Inc.,
71       51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
72

BUGS

74       To get a list of bugs against libguestfs, use this link:
75       https://bugzilla.redhat.com/buglist.cgi?component=libguestfs&product=Virtualization+Tools
76
77       To report a new bug against libguestfs, use this link:
78       https://bugzilla.redhat.com/enter_bug.cgi?component=libguestfs&product=Virtualization+Tools
79
80       When reporting a bug, please supply:
81
82       ·   The version of libguestfs.
83
84       ·   Where you got libguestfs (eg. which Linux distro, compiled from
85           source, etc)
86
87       ·   Describe the bug accurately and give a way to reproduce it.
88
89       ·   Run libguestfs-test-tool(1) and paste the complete, unedited output
90           into the bug report.
91
92
93
94libguestfs-1.38.2                 2018-05-15                 boot-benchmark(1)
Impressum