[oprof-cvs] [SF SCMS]oprofile branch master updated. PRE_RELEASE_1_0-64-gb3c20ae

[William C. <wc...@us...>]

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commit b3c20ae8b52c10aa631ca0b931388df98ca3183d
Author: Michael Petlan <mp...@re...>
Date:   Fri Sep 23 13:35:54 2016 +0200

    Intel Goldmont default event
    
    Hi all,
    
    when testing oprofile on an Intel Goldmont machine, I have found out
    that the default event cpu_clk_unhalted returns always zero. Thus, I
    checked the configuration and Intel SDM, and I think there must be a
    mistake.
    
    According to the Intel SDM, table 19-24, the event is 0x3c as usual.
    It has two unit masks (0x00 (core_p) and 0x01 (ref)). With this, the
    event starts giving reasonable results.
    
    The current configuration  which is coded in oprofile is not even in
    the SDM tale 19-24, so it is expectable that the following will give
    zero value:
    
    perf stat -e cpu/event=0x00,umask=0x02/ ls
    
    Please consider applying the attached patch.
    
    CC'ing Andi to verify the fix.
    
    Thank you,
    Michael
    
    commit df73e385442236fd6e763cc192185c606e59feda
    Author: Michael Petlan <mp...@re...>
    Date:   Fri Sep 23 13:16:00 2016 +0200
    
        Fixed default event on Intel Goldmont
    
        According to the Intel SDM, table 19-24, the event cpu_clk_unhalted
        has the event number 0x3c and has two unit masks (0x00, 0x01). This
        also corresponds to other Intels where the event is also 0x3c.
    
        Tested on a Goldmont Harrisonville (model 95).
    
        Before the patch:
    
        $ ocount ls
        Events were actively counted for 1761229 nanoseconds.
        Event counts (actual) for /usr/bin/ls:
                Event                   Count                    % time counted
                cpu_clk_unhalted        0                        100.00
    
        After the patch:
    
        Event counts (actual) for /usr/bin/ls:
                Event                   Count                    % time counted
                cpu_clk_unhalted        2,948,142                100.00
    
        Signed-off-by: Michael Petlan <mp...@re...>

-----------------------------------------------------------------------

Summary of changes:
 events/i386/goldmont/events     |    2 +-
 events/i386/goldmont/unit_masks |    4 +---
 2 files changed, 2 insertions(+), 4 deletions(-)


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