- Running applications with the profiler
- Profile local applications
- Attaching agent to running application
- Profile remote applications
- Startup options
- Profiling overhead: how to reduce or avoid
- Connect to profiled application
- Capturing snapshots
- Solving performance problems
- CPU profiling
- Threads
- Memory profiling
- Garbage collection
- Exception telemetry
- Probes: monitor higher level events
- Performance charts
- Inspections: automatic recognition of typical problems
- Automatically trigger actions on event
- Summary, snapshot annotation, automatic deobfuscation
- Integration with Microsoft Visual Studio
- Time measurement (CPU time, wall time)
- Filters
- Snapshot directory customization
- Export of profiling results to HTML, CSV, XML, plain text
- Profiler API
- Command line tool to control profiling
Profile remote applications
Remote profiling is the case when the profiled application and the profiler UI run on different machines, usually on a server and your developer machine correspondingly.
See also Profile local applications.
1. Enable profiling on the remote machine
Download the command line tool to the remote machine,
unpack it to arbitrary directory and run the following command in command prompt started as administrator:
YourKitTools.exe enable
If you want to specify startup options, run:
YourKitTools.exe enable <comma-separated startup options>
You may need to restart Windows. For detail, please refer to the following MSDN article
Special notes on profiling a Windows service can be found here.
2. Start the application on the remote machine
Start the application you want to profile. It should start with the profiler agent.
To ensure it has started with the profiler, check whether the profiler agent log file has been created:
<user home>\.ynp\log\<session name>-<PID>.log
3. Create new connection to the remote machine
To profile .NET applications running on the remote machine with agent use Profile remote application... action on Welcome screen or in "Profile" menu.
Specify the host name or IP address of the remote machine in the opened "Profile Remote Application" dialog.
Profiler discovers applications running with the profiler agent. Ports in the given range will be scanned. By default the profiler agent port is allocated in the range 10001-10010. If the profiler port was changed with startup option 'port', also change the Profiler agent port(s) field accordingly.
SSH tunnel
If the remote host is not directly reachable you can build SSH tunnel. To do so, navigate to the SSH Tunnel tab and enable SSH tunnel using Use SSH tunnel checkbox.
4. Connect to the remote application
Created connection will appear in the "Monitor Applications" list on Welcome screen under a given name. You can then connect to the application to perform profiling.
If you do not see your application it the list, please read Remote profiling troubleshooting.
Please note that for SSH connections known hosts are not checked, and StrictHostKeyChecking SSH parameter is set to no.