Blktap devices information isn't shown by xentop currently.
xen-unstable c/s 17813 said "blktap devices have statistics
counters (e.g., rd_req, wr_req, oo_req) prepended by tap_".
In fact, it is as follows.
# ls -l /sys/devices/xen-backend/tap-1-769/statistics/
total 0
-r--r--r-- 1 root root 4096 Dec 3 20:37 oo_req
-r--r--r-- 1 root root 4096 Dec 3 20:37 rd_req
-r--r--r-- 1 root root 4096 Dec 3 20:37 rd_sect
-r--r--r-- 1 root root 4096 Dec 3 20:37 wr_req
-r--r--r-- 1 root root 4096 Dec 3 20:37 wr_sect
The statistics counters haven't had "tap_" because it was removed
by linux-2.6.18-xen c/s 34.
This patch reverts xen-unstable c/s 17813, then we can get the
blktap devices information by using xentop.
Signed-off-by: Masaki Kanno <kanno.masaki@jp.fujitsu.com>
Overview: update xenstat vbd statistics parsing from
/sys/devices/xen-backend to process blktap disks
Reason:
-blktap devices (now referenced as tap rather than vbd in
/sys) have statistics counters
(e.g., rd_req, wr_req, oo_req) prepended by tap_
-xenstat behavior did not previously account for this
behavior, which resulted in 0 disks
visible and similarly impacted disk statistics
To reproduce these conditions, make a domain with tap:aio backed disks
on 3.2.x, run xentop, and press B to view VBD stats (nothing will
appear for the domain using tap:aio)
Signed-off-by: steve.maresca@gmail.com
When I changed the name of a domain by using xm rename command, the
name of the domain that xentop shows did not change. This patch
reflects new domain name to the name of domains that xentop shows.
Signed-off-by: Masaki Kanno <kanno.masaki@jp.fujitsu.com>
Recent Solaris enhancements have changed the way virtual NIC
statistics are collected - fix libxenstat up for this.
Signed-off-by: John Levon <john.levon@sun.com>
sysctl.physinfo.nr_cpus. This also avoids miscalculation of
sockets_per_node by Xen where the number of CPUs in the system is
clipped.
From: Elizabeth Kon <eak@us.ibm.com>
Signed-off-by: Keir Fraser <keir@xensource.com>
If we test multiple domain create/shutdown many times.
sometimes abnormal values of cpu(%) are appeared.
This is because shutdown domain remove failure.
(in other words, memory corruption of struct )
This corruption makes abnormal cpu(%) values are shown xentop
sometimes.
Signed-off-by: Atsushi SAKAI <sakaia@jp.fujitsu.com>
Some curses libraries don't work with xentop in batch mode, avoid
those calls. Avoid the over-verbose summary lines when batch mode is
requested.
Signed-off-by: Gary Pennington <gary.pennington@sun.com>
Signed-off-by: Keir Fraser <keir@xensource.com>
Our @us.ibm.com emails cannot forward to us; we do not have access to
them when not interning at IBM. People have attempted to reach us via
those addresses and failed; occasionally they've Googled for a current
address, which made us realize the problem. Change each email to a
more permanent address, so people can reach us in the future. Change
bug reporting addresses to a xen mailing list rather than an
individual.
Signed-off-by: Josh Triplett <josh@kernel.org>
1. platform_op -- used by dom0 kernel to perform actions on the
hardware platform (e.g., MTRR access, microcode update, platform
quirks, ...)
2. domctl -- used by management tools to control a specified domain
3. sysctl -- used by management tools for system-wide actions
Benefits include more sensible factoring of actions to
hypercalls. Also allows tool compatibility to be tracked separately
from the dom0 kernel. The assumption is that it will be easier to
replace libxenctrl, libxenguest and Xen as a matched set if the
dom0 kernel does not need to be replaced too (e.g., because that
would require vendor revalidation).
From here on we hope to maintain dom0 kernel compatibility. This
promise is not extended to tool compatibility beyond the existing
guarantee that compatibility will not be broken within a three-level
stable release [3.0.2, 3.0.3, etc.].
Signed-off-by: Keir Fraser <keir@xensource.com>
Currently, xenstat_get_node exits with a failure and returns NULL if a
VM is deleted between the time the list of VMs is obtained and the time
it attempts to collect information about the VMs. This patch modifies xenstat
to ignore domains that transition during the call.
Signed-off-by: Simon Graham <Simon.Graham@stratus.com>
to the xentop utility. It also adds the ability to specify the
number of iterations xentop should produce before exiting.
a) xentop -b
will output to stdout.
b) xentop -i <number>
will iterate <number> times and exit (option "n" is already used by
xentop. Hence the choice of "i"). This option can be used for both the
curses and batch modes.
From: Hariprasad Nellitheertha <mlisthari@gmail.com>
Signed-off-by: Keir Fraser <keir@xensource.com>
