I want to measure performance of some kernel functions using Ftrace but I want to measure it selectively for particular value of argument. This is because the same/other programs calling the same function (but with different argument) pollute my Ftrace output logs. Also, I don't want to set PID filter as it would not solve my issue (I'm running multiple parallel kernel threads, and same program can also call that function with different arguments) What's the best possible way of doing it without affecting the measurements? Is there any Ftrace functionality (or possibly customizing the trace points) that I'm missing?
Logging the kernel Ftrace point selectively for particular arguments
285 Views Asked by shivank At
1
There are 1 best solutions below
Related Questions in LINUX
- Best way to pass an environment variable to several config files
- Openshift context path
- KeyStore file is not found in jar, although present in jar
- phpseclib of how to get PID and kill
- Unable to connect database of lamp instance from servlet running on tomcat instance of google cloud
- Spring and Tomcat: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set
- How can I get a custom header from the client in Tomcat?
- why lost Mysql connection pool after a period?
- Eclipse Java EE + Bitnami Tomcat Stack
- Service not starting using Spring-boot during integration tests
Related Questions in PERFORMANCE
- Best way to pass an environment variable to several config files
- Openshift context path
- KeyStore file is not found in jar, although present in jar
- phpseclib of how to get PID and kill
- Unable to connect database of lamp instance from servlet running on tomcat instance of google cloud
- Spring and Tomcat: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set
- How can I get a custom header from the client in Tomcat?
- why lost Mysql connection pool after a period?
- Eclipse Java EE + Bitnami Tomcat Stack
- Service not starting using Spring-boot during integration tests
Related Questions in PROFILING
- Best way to pass an environment variable to several config files
- Openshift context path
- KeyStore file is not found in jar, although present in jar
- phpseclib of how to get PID and kill
- Unable to connect database of lamp instance from servlet running on tomcat instance of google cloud
- Spring and Tomcat: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set
- How can I get a custom header from the client in Tomcat?
- why lost Mysql connection pool after a period?
- Eclipse Java EE + Bitnami Tomcat Stack
- Service not starting using Spring-boot during integration tests
Related Questions in PERF
- Best way to pass an environment variable to several config files
- Openshift context path
- KeyStore file is not found in jar, although present in jar
- phpseclib of how to get PID and kill
- Unable to connect database of lamp instance from servlet running on tomcat instance of google cloud
- Spring and Tomcat: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set
- How can I get a custom header from the client in Tomcat?
- why lost Mysql connection pool after a period?
- Eclipse Java EE + Bitnami Tomcat Stack
- Service not starting using Spring-boot during integration tests
Related Questions in FTRACE
- Best way to pass an environment variable to several config files
- Openshift context path
- KeyStore file is not found in jar, although present in jar
- phpseclib of how to get PID and kill
- Unable to connect database of lamp instance from servlet running on tomcat instance of google cloud
- Spring and Tomcat: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set
- How can I get a custom header from the client in Tomcat?
- why lost Mysql connection pool after a period?
- Eclipse Java EE + Bitnami Tomcat Stack
- Service not starting using Spring-boot during integration tests
Trending Questions
- UIImageView Frame Doesn't Reflect Constraints
- Is it possible to use adb commands to click on a view by finding its ID?
- How to create a new web character symbol recognizable by html/javascript?
- Why isn't my CSS3 animation smooth in Google Chrome (but very smooth on other browsers)?
- Heap Gives Page Fault
- Connect ffmpeg to Visual Studio 2008
- Both Object- and ValueAnimator jumps when Duration is set above API LvL 24
- How to avoid default initialization of objects in std::vector?
- second argument of the command line arguments in a format other than char** argv or char* argv[]
- How to improve efficiency of algorithm which generates next lexicographic permutation?
- Navigating to the another actvity app getting crash in android
- How to read the particular message format in android and store in sqlite database?
- Resetting inventory status after order is cancelled
- Efficiently compute powers of X in SSE/AVX
- Insert into an external database using ajax and php : POST 500 (Internal Server Error)
Popular # Hahtags
Popular Questions
- How do I undo the most recent local commits in Git?
- How can I remove a specific item from an array in JavaScript?
- How do I delete a Git branch locally and remotely?
- Find all files containing a specific text (string) on Linux?
- How do I revert a Git repository to a previous commit?
- How do I create an HTML button that acts like a link?
- How do I check out a remote Git branch?
- How do I force "git pull" to overwrite local files?
- How do I list all files of a directory?
- How to check whether a string contains a substring in JavaScript?
- How do I redirect to another webpage?
- How can I iterate over rows in a Pandas DataFrame?
- How do I convert a String to an int in Java?
- Does Python have a string 'contains' substring method?
- How do I check if a string contains a specific word?
We can use Conditional Tracepoints for this kinds of case. This patch may also be helpful in understanding. One can check this file -
samples\trace_events\trace-events-sample.hin linux kernel to see sample examples.In
samples\trace_events\trace-events-sample.h, It became crystal-clear to me after seeing this macro -TRACE_EVENT_CONDITION(). Thanks to the author for providing a detailed documentation there.Moreover, one can use pre-defined event-tracepoints or define a new custom event tracepoint in
include/trace/events/*.hand filter the trace logs by adding condition inTRACE_DIR/tracing/events/EVENT/filter. This kernel documentation link is very helpful to understand this.