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Linux block I/O tracing - Collabora
https://www.collabora.com/news-and-blog/blog/2017/03/28/linux-block-io-tracing/
Linux block I/O tracing. Collabora Like starting a car with the hood open, sometimes you need to run your program with certain analysis tools attached to get a full sense of what is going wrong – or right. Be it to debug an issue, or simply to learn how that program works, these probing tools can provide a clear picture of what is going on inside the CPU at a …
Linux Block I/O Tracing - Linux.com
https://www.linux.com/topic/networking/linux-block-io-tracing/
blktrace(8) - Linux man page
https://linux.die.net/man/8/blktrace
Exploring the Linux Storage Path - Tracing block I/O kernel events
https://blog.csdn.net/yiyeguzhou100/article/details/80541186
Enabling the Linux kernel to trace block I/O events When the kernel is enabled for tracing, the compiler inserts a small No-Operation instruction of 5 bytes at the beginning of every kernel function. That instruction is used in the tracer calls, when tracing is enabled, to gather the timestamp of each function entry.
blktrace: generate traces of the i/o traffic on block …
https://www.systutorials.com/docs/linux/man/8-blktrace/
Linux Tracing Technologies — The Linux Kernel …
https://www.kernel.org/doc/html/latest/trace/index.html
Single thread tracing. function graph tracer. dynamic ftrace. Selecting function filters via index. Dynamic ftrace with the function graph tracer. ftrace_enabled. …
The Linux Guide: How to disable Trace/Track in …
https://www.linuxcnf.com/2017/08/how-to-disable-tracetrack-in-apachehttpd.html
The TRACE method is enabled by default in an apache/httpd installation. This could expose server to certain Cross-Site Scripting attacks. There are two methods directive and rewrite rule to disable the TRACE method. In this tutorial, we will show how to check for TRACE support on Apache2/httpd server using curl, and then disable if it is enabled. To check the …
How to Use the traceroute Command on Linux
https://www.howtogeek.com/657780/how-to-use-the-traceroute-command-on-linux/
To do this, we’ll use the -w (wait time) option to change it to seven seconds. (Note this is a floating-point number.) We type the following command: traceroute -w 7.0 blarneycastle.ie. That didn’t make much of a difference, so the responses are probably timing out.
Tracing on Linux
https://events.static.linuxfound.org/images/stories/pdf/lceu2012_zannoni.pdf
• Start: start tracing but keep data in kernel ring buffer • Stop: stop collecting data into the kernel ring buffer • Extract: extract data from ring buffer into trace.dat • List: list available plugins (-p) or events (-e) • Version 2.0 just released • git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git
Event Tracing — The Linux Kernel documentation
https://www.kernel.org/doc/html/latest/trace/events.html
The events which are available for tracing can be found in the file /sys/kernel/debug/tracing/available_events. To enable a particular event, such as ‘sched_wakeup’, simply echo it to /sys/kernel/debug/tracing/set_event. For example: # echo sched_wakeup >> /sys/kernel/debug/tracing/set_event Note
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