[Bug breakpoints/15697] New: Unnecessary =breakpoint-modified event when hitting dprintf

[Bug breakpoints/15697] New: Unnecessary =breakpoint-modified event when hitting dprintf

[marc.khouzam at ericsson dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=15697

            Bug ID: 15697
           Summary: Unnecessary =breakpoint-modified event when hitting
                    dprintf
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: breakpoints
          Assignee: unassigned at sourceware dot org
          Reporter: marc.khouzam at ericsson dot com

I believe there was an agreement that it was not a good idea to send a
=breakpoint-modified event each time a dprintf was hit.  When a dprintf is in a
loop, these event can become quite inefficient.  Furthermore, these events are
not sent when using 'agent' dprintf-style.

Please see discussion and agreement here:
http://sourceware.org/ml/gdb-patches/2013-03/msg00260.html
http://sourceware.org/ml/gdb-patches/2013-03/msg00380.html

(note that if this change is made, it would nullify Bug 15694)

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[Bug breakpoints/15697] Unnecessary =breakpoint-modified event when hitting dprintf

[marc.khouzam at ericsson dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=15697

--- Comment #1 from Marc Khouzam <marc.khouzam at ericsson dot com> ---
I'm still worried about this =breakpoint-modified being sent every time a
dprintf hits.  Sounds like excessive noise towards the frontend.

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[Bug breakpoints/15697] Unnecessary =breakpoint-modified event when hitting dprintf

[malaperle at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=15697

Marc-Andre Laperle <malaperle at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |malaperle at gmail dot com

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[Bug breakpoints/15697] Unnecessary =breakpoint-modified event when hitting dprintf

[marc.khouzam at ericsson dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=15697

--- Comment #2 from Marc Khouzam <marc.khouzam at ericsson dot com> ---
Proposed fix:
https://sourceware.org/ml/gdb-patches/2014-04/msg00601.html

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[Bug breakpoints/15697] Unnecessary =breakpoint-modified event when hitting dprintf

[marc.khouzam at ericsson dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=15697

Marc Khouzam <marc.khouzam at ericsson dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |WONTFIX

--- Comment #3 from Marc Khouzam <marc.khouzam at ericsson dot com> ---
It turns out that it was not the =breakpoint-modified event causing a
performance degradation but the extra *running events reported by bug 15693.

I'm marking this bug as WONTFIX based on Pedro's arguments:
https://sourceware.org/ml/gdb-patches/2014-04/msg00623.html

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