Searching for Oprofile Kernel Support Not Available information? Find all needed info by using official links provided below.
http://oprofile.sourceforge.net/faq/
Yes, starting with OProfile 0.8 and kernel version 2.6, callgraph support is available on many (but not all) architectures, such as x86, ARM, and ppc/ppc64. What about the "security hole" CVE-2006-0576? This "problem" only occurs if you actively, and mistakenly, configure access to OProfile via sudo.
https://sourceforge.net/p/oprofile/mailman/message/23144818/
After comipiling i copied binaries to target device . When run opcontrol --no-vmlinux Iam getting this mount: mounting nodev on /dev/oprofile failed: Device or resource busy Kernel support not available, missing opcontrol --init as root ? Kindly help wat else i have to do for oprofile to run without any issues Thanks in advance Manoj
http://oprofile.sourceforge.net/news/
OProfile 0.5.1 has been released. x86-64 on 2.4 support has been added. Kernel profiles can be separated per-application. A new C++ demangler has been added, which is still experimental. An important daemon crash fix and a number of other bugs have been fixed. 2003-02-04 OProfile mailing list available via NNTP
https://wiki.eclipse.org/Linux_Tools_Project/OProfile/User_Guide
The OProfile plug-in allows you to configure a profile run using several available OProfile options. These options are exposed via the launch configuration in a user-friendly manner, allowing for a more complex profile. ... If your processor (or kernel) does not support the hardware profiling registers OProfile uses, OProfile will run in timer ...
https://sourceforge.net/p/oprofile/mailman/message/9344062/
I am using oprofile kernel module for 2.6 when i load oprofile module it says: "oprofile: using timer interrupt." ... , as it says at boot: CPU#0: Intel P4/Xeon Extended MCE MSRs (12) available Counters worked fine in 2.4, but now under 2.6 ... they do not i was experimenting with different kernel options and got it to use NMI interrupt, but ...
https://oprofile.sourceforge.io/about/
Performance counter support Enables collection of various low-level data, and assocation with particular sections of code. Call-graph support With an x86 or ARM 2.6 kernel, OProfile can provide gprof-style call-graph profiling data. Low overhead OProfile has a typical overhead of 1-8%, dependent on sampling frequency and workload. Post-profile ...
https://docs.fedoraproject.org/en-US/fedora/rawhide/system-administrators-guide/monitoring-and-automation/OProfile/
Hardware performance counters do not work on guest virtual machines — Because the hardware performance counters are not available on virtual systems, you need to use the timer mode. ... To learn more about Java support in OProfile, ... To configure OProfile not to monitor the kernel, select No kernel image. Figure 2. OProfile Configuration.
https://en.wikipedia.org/wiki/OProfile
In computing, OProfile is a system-wide statistical profiling tool for Linux.John Levon wrote it in 2001 for Linux kernel version 2.4 after his M.Sc. project; it consists of a kernel module, a user-space daemon and several user-space tools.. OProfile can profile an entire system or its parts, from interrupt routines or drivers, to user-space processes.It has low overhead.License: GPL
https://documentation.suse.com/sles/12-SP4/html/SLES-all/cha-tuning-oprofile.html
OProfile is a profiler for dynamic program analysis. It investigates the behavior of a running program and gathers information. This information can be viewed and gives hints for further optimization. It is not necessary to recompile or use wrapper libraries to use OProfile. Not even a kernel patch is needed. Usually, when profiling an application, a small overhead is expected, depending on ...
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