Announcement: OProfile 1.0.0
William Cohen <[email protected]>
| Newsgroups | gmane.linux.oprofile |
|---|---|
| Message-ID | <[email protected]> |
We are pleased to announce the general availability of OProfile 1.1.0.
You can download this release at:
http://oprofile.sourceforge.net/download/
-Will Cohen
OProfile is a powerful system-wide profiler for Linux.
Read more at http://oprofile.sf.net
OProfile 1.1.0 has been released.
New features
------------
- New/updated Processor Support
* Broadcom Brahmma-B15 CPU
* Intel Skylake
* Intel Airmont
* Intel Xeon D
Bug fixes
---------
Filed bug reports:
-------------------------------------------------------------------------
| BUG ID | Summary
|-----------|------------------------------------------------------------
| 277 | Fix compile error missing <time.h> include for uClibc platform
| 275 | oprofile-1.0.0 fails to recognize AMD Athlon-XP CPU
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Other bug fixes and improvements without a filed report (e.g., posted to the list):
---------------
- Prevent dropping of samples when the JVM changes memory mappings
- Better handling of IBM Power JVM generated zero-sized mappings
- Correct handling of anon_hugepage mmap entries for Java
- Improved oparchive documentation and man page
- Fixed compile error when using compile fortification
- Support IBM Power 8 event code larger than sizeof int
- Avoid changing POSIXLY_CORRECT environment variable for processes monitored
by operf and ocount
- Ensure correct setting of the extra bits (edge, inv, cmask) for Intel
processors
- Fix default unit masks for Intel Haswell and Broadwell processors
- Correctly initialize operf temporary file header information
Known problems and limitations
-------------------------
- When using operf to profile multiple events, the absolute number of
events recorded may be substantially fewer than expected. This can be
due to known bug in the Linux kernel's Performance Events Subsystem that
was fixed sometime between Linux kernel version 3.1 and 3.5.
- Since the default unit mask for Intel Broadwell cycle_activity
cannot be uniquely specified by numbers, the default has to be
replaced by a named one and named unit masks should be used rather
than numbers for this event.
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