Announcement: Release Candidate 1 for OProfile 1.1.0
William Cohen <[email protected]>
| Newsgroups | gmane.linux.oprofile |
|---|---|
| Message-ID | <[email protected]> |
We are pleased to announce OProfile 1.1.0 Release Candidate 1. This is primarily a bug-fix release. You can download this release at:
https://sourceforge.net/projects/oprofile/files/oprofile/oprofile-1.1.0rc1/
Please download and test this release candidate, and send your feedback by replying to this message. Please include your hardware platform and Linux distribution information in your reply.
Thanks.
-William Cohen
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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
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.
- Use a named default for the Intel Broadwell cycle_activity default
unit_mask
- Since default unit mask for Intel Broadwell cycle_activity cannot be
uniquely specified by numbers, the default has to be replaced by a
named one.git
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