Warning: main(/www/www/htdocs/style/globals.php) [function.main]: failed to open stream: No such file or directory in /www/www/docs/6.4.1/neutrino/utilities/t/tracelogger.html on line 1
Warning: main() [function.include]: Failed opening '/www/www/htdocs/style/globals.php' for inclusion (include_path='.:/www/www/common:/www/www/php/lib/php') in /www/www/docs/6.4.1/neutrino/utilities/t/tracelogger.html on line 1
Warning: main(/www/www/htdocs/style/header.php) [function.main]: failed to open stream: No such file or directory in /www/www/docs/6.4.1/neutrino/utilities/t/tracelogger.html on line 8
Warning: main() [function.include]: Failed opening '/www/www/htdocs/style/header.php' for inclusion (include_path='.:/www/www/common:/www/www/php/lib/php') in /www/www/docs/6.4.1/neutrino/utilities/t/tracelogger.html on line 8
Log tracing information into an event file
|
- You must be root to run this utility.
- In order to log trace events, your system must be running an
instrumented version of
procnto.
|
tracelogger [-cEPRrw] [-A attribute] [-b num] [-d mode]
[-F num] [-f file] [-k num] [-M -S size] [-n num]
[-s num] [-v[v...]]
QNX Neutrino
x86, PPC, SH-4, ARM, and MIPS
- -A attribute
- Specify an attribute to add to the log.
The attribute is in the form name=value, where
the name and value are arbitrary strings.
|
You can't use the following in the name or value:
If you do, tracelogger prints a message and ignores the
attribute.
|
You can use one or more occurrences of this option to add information
to identify the scenario that you're logging.
For example:
tracelogger -s1 -A MACHINE_NAME=tx86 -A PERIOD=1s
- -b num
- The maximum number of dynamic buffers to allocate in
tracelogger; the default is 64. Each buffer has a size
of approximately 11 KB.
- -c
- Operate in continuous mode; the default is to run in iterations mode.
- -d mode
- Currently, the mode is:
- 1 (“One”)
- Launch in daemon mode.
Unless you also specify the -E option, tracelogger
ignores all its other options, leaving your application to configure,
start, and stop the tracing.
- -E
- Extend the daemon (-d1) mode by honoring the other options to
tracelogger.
Your application still needs to call
TraceEvent()
to start capturing trace events.
- -f file
- The name of the file to store logged events in.
The default is /dev/shmem/tracebuffer.kev.
- -F num
- Filtering for different num values, as follows:
- 0
- Don't set any filtering.
- 1
- Disable Kernel calls class.
- 2
- Disable Interrupt class.
- 3
- Disable Process class.
- 4
- Disable Thread class.
- 5
- Disable VThread class.
- 6
- Disable Communication class.
- 7
- Disable System class.
You can specify more than one filter by using multiple -F
options.
For example, to disable both the Interrupt and VThread classes,
specify -F2 -F5.
- -k num
- The number of buffers to allocate in the kernel; the default is 32.
Each buffer has a size of approximately 16 KB.
- -M
- Map the log file directly instead of writing. If you use this option,
the log file must be in shared memory, and you must use the -S
option to specify the maximum file size.
- -n num
- The number of iterations to log in iterations mode.
The default is 32; specify 0 for unlimited iterations.
- -P
- Preserve the kernel instrumentation buffers in a shared memory block in
/dev/shmem.
If you specify this option, then
when tracelogger exits, it doesn't deallocate the in-kernel
buffer memory; you can then specify the -R option
on subsequent runs to make tracelogger reuse the same buffers
without reallocating memory.
- -R
- Reuse the kernel instrumentation buffers that were previously created
when you used the -P option.
If there are no buffers to reuse, tracelogger allocates the
kernel buffers as usual.
- -r
- Set the kernel buffer to ring mode.
The default is linear mode.
- -s num
- The number of seconds to log in continuous mode (as specified by the
-c option).
The default is 0, specifying an unlimited duration.
- -S size
- The maximum size of the log file. Use M for megabytes or
K for kilobytes. If you
don't use M or K, the units are assumed to be bytes.
You must specify this option if you use the -M option.
- -v[v...]
- Be verbose; more v characters cause more verbosity.
- -w
- Log wide events; the default is to log fast events.
The tracelogger daemon receives events from the instrumented kernel
(procnto*-instr)
and saves them in a file or on a device for later analysis.
It logs the requested number of iterations, and then terminates.
You can start tracelogger using:
- Full tracelogger support (limited control)
- Instrumentation with full tracelogger support
is the simplest way to obtain the tracing information.
In this case, the tracelogger performs all initialization
and runtime control of the instrumentation module in addition
to its normal task of saving the trace buffers to the filesystem.
- Partial tracelogger support (daemon mode, full control)
- Instrumentation with partial tracelogger support is the
most flexible way of controlling the instrumentation process.
However, it requires the largest amount of user support during
initialization. Except for specifying the number of buffers,
the tracelogger doesn't perform any initialization of the
instrumentation module and its almost exclusive task is
to log the “received” trace events to the filesystem.
Start tracelogger in wide mode and display operational information
on the console screen; store the logged data in the named file and stop
logging when 12 trace buffers are full:
#tracelogger -f /dev/shmem/my_tracebuffer -n 12 -w
Start tracelogger in ring mode (background)
using 5 internal buffers and wait for an asynchronous
signal (e.g. Ctrl-C) to stop it:
#tracelogger -r -b 5
Run tracelogger in continous mode for 20 seconds:
tracelogger -c -s20
- -1
- An error occurred.
Severe errors cause tracelogger to terminate.
Run only one instance of tracelogger at a time.
traceprinter
TraceEvent()
in the Neutrino Library Reference
System Analysis Toolkit User's Guide
Warning: main(/www/www/htdocs/style/footer.php) [function.main]: failed to open stream: No such file or directory in /www/www/docs/6.4.1/neutrino/utilities/t/tracelogger.html on line 354
Warning: main() [function.include]: Failed opening '/www/www/htdocs/style/footer.php' for inclusion (include_path='.:/www/www/common:/www/www/php/lib/php') in /www/www/docs/6.4.1/neutrino/utilities/t/tracelogger.html on line 354