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The xenmon.py script does not work on Solaris because of (1) its
assumption that xenbaked is in the users path and, (2) the use of the
killall command. Changed xenmon.py to use pkill instead and provided
the path to xenbaked on Solaris.
Signed-off-by: Tariq Magdon-Ismail <tariqmi@sun.com>
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The xenbaked daemon and xenmon utility communicate via a mmap'ed
shared file. Since this file is located in /tmp, unprivileged users
can cause arbitrary files to be truncated by creating a symlink from
the well-known /tmp filename to e.g., /etc/passwd.
The fix is to place the shared file in a directory to which only root
should have access (in this case /var/run/).
This bug was reported, and the fix suggested, by Steve Kemp
<skx@debian.org>. Thanks!
Signed-off-by: Keir Fraser <keir@xensource.com>
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Signed-off-by: Masaki Kanno <kanno.masaki@jp.fujitsu.com>
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Signed-off-by: Masaki Kanno <kanno.masaki@jp.fujitsu.com>
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parameter, xenmon did not become an error.
This patch adds a checking of wrong parameter into xenmon.
If wrong parameter is given, xenmon shows the following error
messages.
usage: xenmon.py [options]
xenmon.py: error: No parameter required
Signed-off-by: Masaki Kanno <kanno.masaki@jp.fujitsu.com>
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If a value of "--ms_per_sample" option is larger than a value of
"--time" option, xenmon may generate no log file. So, too large
"--ms_per_sample" should be treated as an error.
e.g.
% xenmon.py --ms_per_sample=2000 -t 1 -n
usage: xenmon.py [options]
xenmon.py: error: option --ms_per_sample: too large (> 1000 ms)
# Notice that a unit of "--time" is a second.
Signed-off-by: KUWAMURA Shin'ya <kuwa@jp.fujitsu.com>
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"--ms_per_sample=", a negative value should be invalid.
e.g.
% xenmon.py -n --ms_per_sample=-1
usage: xenmon.py [options]
xenmon.py: error: option --ms_per_sample: invalid negative value: '-1'
Signed-off-by: KUWAMURA Shin'ya <kuwa@jp.fujitsu.com>
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This patch addresses the problem of xenbaked/xenmon not dealing with
large domain ID's. Xen Domain ID's increase monotonically as domains
are created; The ID's are not (often) recycled. Xenbaked was using the
domain
ID's as indices to arrays of data, and this scheme blows up as soon as
a domain ID exceeds the array size. Code has been changed in xenbaked
and xenmon to isolate domain id's from array indices, so everything is
indirect. Users should not notice any difference in behavior.
From: Rob Gardner <rob.gardner@hp.com>
Signed-off-by: Keir Fraser <keir@xensource.com>
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The number "31" means the idle domain ID.
In detail:
- display the idle domain ID with "Idle" instead of "31"
- write to the file "log-idle.log" instead of "log-dom31.log".
Signed-off-by: KUWAMURA Shin'ya <kuwa@jp.fujitsu.com>
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The primary purpose of this patch is to add support for non-polling
access to the xen trace buffers. The hypervisor changes have already
been accepted.
Also included are a few bug fixes and some minor new features:
1. If xenmon is run without first allocating trace buffers (via
'setsize') and enabling them (via 'tbctl'), then this is done
automatically using sensible defaults.
2. There was a bug that caused the first second's worth of data output
from xenmon to be erroneous; This has been fixed.
3. There was a bug that caused xenmon to sometimes not display data for
newly created domains; This has also been fixed.
4. The xenmon display has a 'heartbeat' which flickers once per second.
This is to show that xenmon is still alive, even though the display
isn't changing at all, a situation that can happen sometimes when there
is nothing at all happening on a particular cpu.
5. Added cpu utilization display to the top of the xenmon window.
6. Added a bunch of options in xenmon to control exactly which metrics
are displayed, so the screen doesn't get cluttered with stuff you're not
interested in. The new options are:
--allocated
--noallocated
--blocked
--noblocked
--waited
--nowaited
--excount
--noexcount
--iocount
--noiocount
7. Added an option ("--cpu=N") to xenmon to specify which physical cpu
you'd like data displayed for.
8. Updated the README with information about default trace buffer size, etc.
Signed-off-by: Rob Gardner <rob.gardner@hp.com>
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Signed-off-by: Diwaker Gupta <dgupta@cs.ucsd.edu>
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Fix duration to sleep between iterations (earlier hardcoded to 1sec)
Signed-off-by: Diwaker Gupta <dgupta@cs.ucsd.edu>
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No functionality is added or removed. Tested on x86/32 smp and x86/64.
Signed-off-by: Rob Gardner <rob.gardner@hp.com>
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Signed-off-by: Rob Gardner <rob.gardner@hp.com>
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