DTrace and function names

[O'Connor, Daniel]

Hi,
I am trying to debug why astro/gpsd uses a lot of CPU so I thought I'd try the 'hotuser' Dtrace toolkit script but the output looks like so..
[midget 9:24] ~ >sudo  /usr/local/share/DTraceToolkit/hotuser -p 37690
Password:
Sampling... Hit Ctrl-C to end.
^C
FUNCTION                                                COUNT   PCNT
libc.so.7`0x801631777                                       1   0.0%
libc.so.7`strtol                                            1   0.0%
libc.so.7`0x801631658                                       1   0.0%
libc.so.7`0x801631625                                       1   0.0%
libc.so.7`0x801631636                                       1   0.0%
libc.so.7`0x801631566                                       1   0.0%
libc.so.7`0x801631623                                       1   0.0%
gpsd`0x405ba6                                               1   0.0%
gpsd`0x404fd6                                               1   0.0%
libc.so.7`0x801631797                                      10   0.0%
libc.so.7`0x8016315f9                                      50   0.2%
libc.so.7`0x80163165c                                      63   0.2%
libc.so.7`0x80163179b                                     115   0.4%
libc.so.7`0x8016315b9                                     119   0.4%
libc.so.7`0x801631794                                     135   0.5%
libc.so.7`0x801631791                                     170   0.6%
libc.so.7`0x801631601                                     212   0.8%
libc.so.7`0x80163165d                                     226   0.8%
libc.so.7`0x801631757                                     233   0.8%
libc.so.7`0x8016315bd                                     235   0.8%
gpsd`0x4028bc                                             237   0.8%
libc.so.7`0x801631736                                     238   0.9%
libc.so.7`0x80163156a                                     239   0.9%
libc.so.7`0x801631617                                     243   0.9%
gpsd`0x4084ea                                             246   0.9%
gpsd`0x408508                                             251   0.9%
libc.so.7`0x8016317a0                                     251   0.9%
libc.so.7`0x801631571                                     252   0.9%
libc.so.7`0x801631749                                     252   0.9%
libc.so.7`0x801631583                                     253   0.9%
libc.so.7`0x8016315c7                                     256   0.9%
libc.so.7`0x801631727                                     259   0.9%
gpsd`0x4084fa                                             261   0.9%
libc.so.7`0x8016315ed                                     264   0.9%
libc.so.7`0x8016315a6                                     264   0.9%
libc.so.7`0x801631775                                     264   0.9%
libc.so.7`0x801631789                                     266   1.0%
libc.so.7`0x801631564                                     267   1.0%
libc.so.7`0x8016316e4                                     268   1.0%
libc.so.7`0x8016316eb                                     271   1.0%
libc.so.7`0x8016315d9                                     274   1.0%
libc.so.7`0x801631771                                     276   1.0%
libc.so.7`0x801631656                                     278   1.0%
libc.so.7`0x8016315dd                                     287   1.0%
libc.so.7`0x8016316e0                                     288   1.0%
libc.so.7`0x801631615                                     292   1.0%
libc.so.7`0x801631782                                     295   1.1%
libc.so.7`0x801631611                                     306   1.1%
libc.so.7`0x80163175c                                     336   1.2%
libc.so.7`0x801631790                                     349   1.3%
libc.so.7`0x8016315b3                                     485   1.7%
libc.so.7`0x80163177e                                     529   1.9%
libc.so.7`0x801631767                                     550   2.0%
libc.so.7`clock_gettime                                   769   2.8%
libc.so.7`0x801631764                                     796   2.9%
libc.so.7`0x8016315d5                                     800   2.9%
libc.so.7`0x80163164f                                    1029   3.7%
libc.so.7`0x801631607                                    1106   4.0%
libc.so.7`0x801631593                                    1335   4.8%
libc.so.7`0x8016315a0                                    1634   5.9%
libc.so.7`0x80163159a                                    1849   6.6%
libc.so.7`0x80163160c                                    2132   7.6%
gpsd`gpsd_report                                         2162   7.8%
libc.so.7`0x80163179d                                    3052  10.9%

So it shows _some_ function names from libc but mostly not.. Is there a way to improve it?

--
Daniel O'Connor
"The nice thing about standards is that there
are so many of them to choose from."
 -- Andrew Tanenbaum
GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C