20 Questions
What is VTune Profiler?
A performance analyzer for Java services
True or false: VTune Profiler is capable of analyzing hardware resource utilization?
True
What type of profiling is available on most cloud VMs?
Software-based sampling
True or false: VTune Profiler requires an Intel processor to collect data?
True
What type of performance processes can VTune Profiler analyze?
System-level
What is required to enable Java-based sampling on a cloud instance?
Perf event paranoid enabled
What is the flame graph view used for?
To be more familiar to Java profilers
True or false: VTune Profiler can be used to profile instances remotely from the web server?
True
What is the name of the hypervisor on AWS that provides access to most performance counters?
Nitro
How many ways are available to collect data with VTune?
Two
What type of sampling is used to analyze hotspots?
Hardware event-based sampling
True or false: VTune Profiler can be installed via the command line on the target instance?
True
What is required to use the hardware-based sampling?
All of the above
True or false: VTune Profiler is capable of looking at application-level performance processes?
True
What is the minimum number of file descriptors required for Java-based sampling?
1024
How can VTune be used to profile instances that are remote from the web server?
By installing it on one instance
What is the first step to set up VTune for profiling?
Using the VTune web server capability
What type of hardware architectures does VTune keep up with?
Intel GPUs
What can VTune be used to analyze?
All of the above
How can you determine if an application is not using memory or CPUs efficiently?
By analyzing what the application is doing
Study Notes
- VTune Profiler is a performance analyzer that can be used to profile Java services in the cloud.
- VTune Profiler is capable of all the performance collection capabilities just described, from looking at the system-level to application-level performance processes.
- VTune is constantly updated to keep up with the new Intel hardware architectures, such as the latest Intel GPUs so that you can identify performance issues on all the newest hardware capabilities.
- After a deeper analysis, you may have determined a function in your application isn't performing well, but you don't know why. So, you will want to look at what that function is doing, or what the application is doing to see if you can determine whether it's not using memory or CPUs efficiently.
- VTune can be used to analyze the performance of an application in a variety of ways, from hardware resource utilization to threading parallelism.
- There are two ways to collect data with VTune: software-based sampling, which works with almost every environment, and hardware-based sampling, which requires an Intel processor and the ability to run a hardware collector such as the VTune drivers or Linux perf.
- VTune has a flame graph view that is more familiar to Java profilers.
- Setting up VTune for profiling is possible in three ways: using the VTune web server capability, SSHing into the target system, or using the VTune Agent.
- VTune can be used to profile instances that are remote from the web server.
- You can use VTune to profile other instances by installing it on one instance and then using the profiler server.
- VTune can also be used to profile the target instance by running the VTune GUI on your local system and connecting to the target.
- The third way is to install via the command line on the target instance.
Explore how VTune Profiler can be used to analyze the performance of Java services in the cloud. Learn about the various profiling capabilities, including system-level and application-level performance processes, analysis of hardware resource utilization, and profiling instances remotely from the web server.
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