THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
oprofile
This is a sampling profiler, so it has minimal impact on Traffic Servers performance.
bcall@snowball trafficserver$ sudo opcontrol --start-daemon
WARNING: Deprecated config file /etc/modprobe.conf, all config files belong into /etc/modprobe.d/.
Detected stale lock file. Removing.
Using default event: CPU_CLK_UNHALTED:100000:0:1:1
Using 2.6+ OProfile kernel interface.
Using log file /var/lib/oprofile/samples/oprofiled.log
Daemon started.
bcall@snowball trafficserver$ sudo opcontrol --status
Daemon running: pid 29524
Separate options: library
vmlinux file: none
Image filter: none
Call-graph depth: 6
- run some benchmark
bcall@snowball trafficserver$ sudo opcontrol -s; sleep 60; sudo opcontrol -t
Profiler running.
Google profiler
- Main Page: http://code.google.com/p/google-perftools/
- CPU Profiler: http://google-perftools.googlecode.com/svn/trunk/doc/cpuprofile.html
This too is a sampling profiler, so it has minimal impact on Traffic Servers performance.
Callgrind
Callgrind is will slow down the performance of traffic server significantly.