Re: Announcement: Release Candidate 1 for OProfile 0.9.8

[Maynard J. <may...@us...>]

On 08/08/2012 04:53 PM, Maynard Johnson wrote:
> We are pleased to announce OProfile 0.9.8 Release Candidate 1.  You can download this release at:
> 	http://sourceforge.net/projects/oprofile/files/oprofile/oprofile-0.9.8/oprofile-0.9.8-RC1.tar.gz/download
> 
> 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.

I'll be meditating in the wilderness for the next week.  It would be great to see some feedback/testing results when I return.  If no major issues are reported by the time I get back, I'll officially announce 0.9.8 GA.

Thanks.
-Maynard

> 
> Thanks.
> -Maynard Johnson
> 
> -----------------------------------------------------------------
> 
> Release Notes
> ===============
> OProfile is a powerful system-wide profiler for Linux. And now
> with the announcement of the 0.9.8 release, OProfile can also
> be used to profile single processes.
> 
> Read more at http://oprofile.sf.net.
> 
> OProfile 0.9.8 has been released. OProfile is still in alpha,
> but has been proven stable for many users.
> 
> 
> Incompatibilities with previous release
> ---------------------------------------
> 
> - Support for pre-2.6 kernels has been removed
> - Relating to the above, the "--with-kernel-support" configure option is
>   no longer needed nor valid
> - The sample data format has changed (see bug #3309794 below for details)
> - The configure.in file has been renamed to configure.ac (should be a
>   transparent change to users)
> 
> New features
> ------------
> 
> - A new 'operf' program is now available that allows non-root users to profile
>   single processes. 'operf' can also be used for system-wide profiling, but
>   root authority is required.
> 
> - New Processors Supports
>     * Tilera tile64
>     * Tilera tilepro
>     * Tilera tile-gx
>     * IBM System z10
>     * IBM System z196
>     * Intel Ivy Bridge
>     * ARMv7 Cortex-A5
>     * ARMv7 Cortex-A15
>     * ARMv7 Cortex-A7
> 
> 
> Bug fixes
> ---------
> 
> Filed bug reports:
> -------------------------------------------------------------------------
> |  BUG ID   |  Summary 
> |-----------|------------------------------------------------------------
> |  3483426  |  Fix configure on newer Debian and Ubuntu systems when using
> |           |  --enable-gui=qt4
> |  3448632  |  Make opcontrol --status show session dir
> |  3451782  |  Fix opimport to not try to import .jo ELF files
> |  3400883  |  Fix oparchive so a relative path can be passed in with
> |           |  --session-dir option
> |  3386923  |  Document that 'opannoate -a' needs symbol info
> |  3521382  |  Fix 'make check' warning treated as error when using newer gcc
> |  3448739  |  Change "Nr. event lost ..." field in the oprofiled.log to "Nr.
> |           |  samples lost ..."
> |  3448699  |  Fix how "Nr. non-backtrace samples" from oprofiled.log is
> |           |  calculated
> |  3309794  |  Change type for sample header mtime field to u64
> |  3393079  |  Document non-support for event-based profiling in guest
> |           |  environments
> |  3470511  |  Fix debuginfo processing to handle no symbol info in debuginfo
> |           |  file
> |  2573008  |  Fix debuginfo processing for ppc64 (incorrect source file/line#
> |           |  info)
> |  3405711  |  Fix opreport -X so total samples for the binary does not
> |           |  include any module counts
> -------------------------------------------------------------------------
> 
> Bugs without a filed report (e.g., posted to the list):
> ---------------
> - OProfile fix to pass string of options from opannotate to objdump
> - Fix build error on Fedora Rawhide (size_t type needed for bfd.h)
> - Fix compile error on Ubuntu 12.10
> - Fix build warning on Fedora 17 with gcc 4.7.0
> - Fix configure to not alter user variables and remove non-working --with-gcc
>   option
> - Fix opjitconv to not end abnormally when no jit dump directory is found
> - Add #include "config.h" before bfd.h (for build error "config.h must be
>   included before this header")
> - Make autogen.sh a bit more discriminating on automake version (fixes problem
>   on Fedora Rawhide)
> - Fix opannotate --assembly to work with prelinked runtime lib and non-prelink
>   debuginfo
> - Discard user context kernel samples for which we have no app_cookie
> - Print correct clock speed when using timer mode
> - Fix oprofile build warnings when using gcc 4.6.1 or newer
> - Fix event name clash in scorpion/scorpionmp
> - Fix debuginfo processing in prelink environments
> 
> 
> Known problems and limitations
> -------------------------
> - AMD Instruction Based Sampling (IBS) is not currently supported with the new
>   operf program.  Use the "legacy" opcontrol commands for IBS profiling.
> 
> - When using operf to profile multiple events, the absolute number of events
>   recorded will usually be substantially fewer than expected. This is due
>   to a bug in the Linux kernel's Performance Events Subsystem that was fixed
>   sometime between Linux kernel version 3.1 and 3.5.
> 
> - If NMI watchdog is not disabled (x86), opcontrol may fail to
>   allocate the hardware performance counter(s) it needs (bug #1468916).
> 
> - Many Alpha ev67 events do not work (bug #931875).
> 
> 
> 
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