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UFTRACE-TUI(1) UFTRACE-TUI(1)

NAME

uftrace-tui - (Interactive) Text-based User Interface

SYNOPSIS

uftrace tui [options]

DESCRIPTION

This command starts an interactive window on a terminal which can show same output of other commands like graph, report and info. Users can navigate the result easily with key presses. The command line options are used to limit the initial data loading.

TUI OPTIONS

Customize fields in the output. This option basically indicates graph fields. Possible values are total, self and addr. The default value is `total'. But if this option is used with –report option, this option indicates report fields. Possible values are total, total-avg, total-min, total-max, total-stdv, self, self-avg, self-min, self-max, self-stdv, call and size. The default value is `total,self,call'. Multiple fields can be set by using comma. If given field name starts with “+”, then it’ll be appended to the default fields. The special field `none' can be used (solely) to hide all fields. See uftrace-graph(1) or uftrace-report(1) for an explanation of fields. The stdv in total-stdv and self-stdv stands for relative standard deviation (RSD), it would only contain value if the function is invoked multiple times.
Sort functions by given KEYS. Multiple KEYS can be given, separated by comma (,). Possible keys are total (time), total-avg, total-min, total-max, self (time), self-avg, self-min, self-max, call, func and size. This option must be used with –report option.

COMMON OPTIONS

Set filter to trace selected functions and their children functions. This option can be used more than once. See uftrace-replay(1) for an explanation of filters.
Set filter not to trace selected functions and their children functions. This option can be used more than once. See uftrace-replay(1) for an explanation of filters.
Set filter to trace callers of selected functions only. This option can be used more than once. See uftrace-replay(1) for an explanation of filters.
Set trigger on selected functions. This option can be used more than once. See uftrace-replay(1) for an explanation of triggers.
Set trace limit in nesting level.
Do not show functions which run under the time threshold. If some functions explicitly have the `trace' trigger applied, those are always traced regardless of execution time.
Do not show functions smaller than SIZE bytes.
Set filter to trace selected source locations. This option can be used more than once. See FILTERS.
Do not show library calls.
Do not show any events. Implies --no-sched.
Do not show schedule events.
Do not show preempt schedule events but show regular(sleeping) schedule events.
Use pattern match using TYPE. Possible types are regex and glob. Default is regex.
Read symbol data from the .sym files in DIR directory instead of the binary. This can be useful to deal with stripped binaries. The file name of the main binary should be the same when saved and used.

COMMON ANALYSIS OPTIONS

Set filter not to trace selected functions. It doesn’t affect their subtrees, but hides only the given functions. This option can be used more than once. See uftrace-replay(1) for an explanation of filters.
Show all kernel functions called outside of user functions.
Show kernel functions only without user functions.
Show all (user) events outside of user functions.
Only print functions called by the given tasks. To see the list of tasks in the data file, you can use uftrace report --task or uftrace info. This option can also be used more than once.
Use demangled C++ symbol names for filters, triggers, arguments and/or return values. Possible values are “full”, “simple” and “no”. Default is “simple” which ignores function arguments and template parameters.
Only show functions executed within the time RANGE. The RANGE can be <start>~<stop> (separated by “~”) and one of <start> and <stop> can be omitted. The <start> and <stop> are timestamp or elapsed time if they have <time_unit> postfix, for example `100us'. The timestamp or elapsed time can be shown with -f time or -f elapsed option respectively in uftrace replay(1).

OUTLINE

If there’s only one session (the usual case) it’ll start with the graph mode to show a full (function) call graph of the session. Users can change to different mode by pressing some keys. The h key always is available for help.

The current line (marked with `>' below) is displayed with inverted color and arrow keys are used to move the cursor to a different location.



 TOTAL TIME : FUNCTION
>  7.548 us : (1) t-abc


   1.811 us :  ├─(1) __monstartup


            :  │


   1.266 us :  ├─(1) __cxa_atexit


            :  │


   4.471 us :  └─(1) main


   3.743 us :    (1) a


   3.194 us :    (1) b


   2.454 us :    (1) c


   1.000 us :    (1) getpid


 uftrace graph: session 2a22812ebbd06f40 (/tmp/uftrace/tests/t-abc)

If there’re more than one session, it’ll start with session selection mode. The graph mode is separated for each session but report mode is merged for the whole sessions.



 Key uftrace command
> G  call Graph for session #1: t-forkexec


     call Graph for session #2: t-abc


  R  Report functions


  I  uftrace Info


  h  Help message


  q  quit


 session a27acff69aec5c9c:  exe image: /tmp/uftrace/tests/t-forkexec

KEYS

Following keys can be used in the TUI window:

•
Up, Down: Move cursor up/down
•
PageUp, PageDown: Move page up/down
•
Home, End: Move to the first/last entry
•
Enter: Fold/unfold graph or Select session
•
G: Show full graph of the current session
•
g: Show backtrace and call graph of the current function
•
R: Show uftrace report
•
r: Show uftrace report of the current function
•
s: Sort by the next column (in report mode)
•
I: Show uftrace info
•
S: Show session list
•
O: Open editor for current function
•
c/e: Collapse/Expand direct children graph node
•
C/E: Collapse/Expand all descendant graph node
•
n/p: Move to next/prev sibling (in graph mode)
•
u: Move up to parent (in graph mode)
•
l: Move to the longest executed child (in graph mode)
•
j/k: Move cursor up/down (like vi)
•
z: Set current line to the center of screen
•
/: Start search
•
</P: Search previous match
•
>/N: Search next match
•
v: Show debug message
•
f: Customize fields in graph or report mode
•
h/?: Show help window
•
q: Quit

SEE ALSO

uftrace(1), uftrace-graph(1), uftrace-report(1), uftrace-info(1), uftrace-replay(1)

AUTHORS

Namhyung Kim <namhyung@gmail.com>.

Jun, 2018 Uftrace User Manuals