NAME¶
uftrace-info - Print tracing information for trace data
SYNOPSIS¶
uftrace info [options] [COMMAND]
DESCRIPTION¶
This command prints metadata recorded in the header of a given data file.
OPTIONS¶
- --symbols
- Print symbols table instead of the recorded tracing info. It will print
two symbol tables - normal symbols and dynamic symbols. The normal symbols
are from the executable itself, and dynamic symbols are for library calls.
When COMMAND is given, it should provide symbol information which might
not be available from the recorded path of 'exe image' or the symbol file
in the data directory.
EXAMPLE¶
This command shows information like below:
-
$ uftrace record abc
$ uftrace info
# system information
# ==================
# program version : uftrace v0.5-191-g30a3
# recorded on : Tue May 24 15:59:00 2016
# cmdline : uftrace record abc
# cpu info : Intel(R) Core(TM) i7-3930K CPU @ 3.20GHz
# number of cpus : 12 / 12 (online / possible)
# memory info : 19.8 / 23.5 GB (free / total)
# system load : 0.02 / 0.07 / 0.11 (1 / 5 / 15 min)
# kernel version : Linux 4.5.4-1-ARCH
# hostname : sejong
# distro : "Arch Linux"
#
# process information
# ===================
# number of tasks : 1
# task list : 8284
# exe image : /home/namhyung/tmp/abc
# build id : a3c50d25f7dd98dab68e94ef0f215edb06e98434
# exit status : exited with code: 0
# cpu time : 0.003 / 0.000 sec (sys / user)
# context switch : 1 / 1 (voluntary / involuntary)
# max rss : 3104 KB
# page fault : 0 / 169 (major / minor)
# disk iops : 0 / 24 (read / write)
To see the symbol table, one can use the --symbols
option.
-
$ uftrace info --symbols
Normal symbols
==============
[ 0] _start (0x400590) size: 42
[ 1] __gmon_start__ (0x4005c0) size: 59
[ 2] a (0x4006c6) size: 19
[ 3] b (0x4006d9) size: 19
[ 4] c (0x4006ec) size: 49
[ 5] main (0x40071d) size: 19
[ 6] __libc_csu_init (0x400730) size: 101
[ 7] __libc_csu_fini (0x4007a0) size: 2
[ 8] atexit (0x4007b0) size: 41
Dynamic symbols
===============
[ 0] getpid (0x400530) size: 16
[ 1] _mcleanup (0x400540) size: 16
[ 2] __libc_start_main (0x400550) size: 16
[ 3] __monstartup (0x400560) size: 16
[ 4] mcount (0x400570) size: 16
[ 5] __cxa_atexit (0x400580) size: 16
AUTHORS¶
Namhyung Kim <namhyung@gmail.com>.