04 Sep, 2013
3 commits
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same story as with oprofilefs_mkdir()
Signed-off-by: Al Viro
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it's always equal to ->d_sb of the second argument (parent dentry),
due to either being literally that, or ->d_sb of parent's parent.Signed-off-by: Al Viro
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Signed-off-by: Al Viro
29 Oct, 2009
1 commit
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This patch updates percpu related symbols in oprofile such that percpu
symbols are unique and don't clash with local symbols. This serves
two purposes of decreasing the possibility of global percpu symbol
collision and allowing dropping per_cpu__ prefix from percpu symbols.* drivers/oprofile/cpu_buffer.c: s/cpu_buffer/op_cpu_buffer/
Partly based on Rusty Russell's "alloc_percpu: rename percpu vars
which cause name clashes" patch.Signed-off-by: Tejun Heo
Acked-by: Robert Richter
Cc: Rusty Russell
20 Jul, 2009
2 commits
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This patch moves the multiplexing switch counter from x86 code to
common oprofile statistic variables. Now the value will be available
and usable for all architectures. The initialization and
incrementation also moved to common code.Signed-off-by: Robert Richter
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The number of hardware counters is limited. The multiplexing feature
enables OProfile to gather more events than counters are provided by
the hardware. This is realized by switching between events at an user
specified time interval.A new file (/dev/oprofile/time_slice) is added for the user to specify
the timer interval in ms. If the number of events to profile is higher
than the number of hardware counters available, the patch will
schedule a work queue that switches the event counter and re-writes
the different sets of values into it. The switching mechanism needs to
be implemented for each architecture to support multiplexing. This
patch only implements AMD CPU support, but multiplexing can be easily
extended for other models and architectures.There are follow-on patches that rework parts of this patch.
Signed-off-by: Jason Yeh
Signed-off-by: Robert Richter
10 Jul, 2009
1 commit
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The bt_lost_no_mapping is not getting reset at the start of a
profiling run, thus the oprofiled.log shows erroneous values for this
statistic. The attached patch fixes this problem.Signed-off-by: Maynard Johnson
Signed-off-by: Robert Richter
Signed-off-by: Ingo Molnar
16 Oct, 2008
2 commits
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Signed-off-by: Robert Richter
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Signed-off-by: Robert Richter
28 Apr, 2008
1 commit
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Change cpu_buffer from array to per_cpu variable in oprofile functions.
[akpm@linux-foundation.org: coding-style fixes]
Cc: Philippe Elie
Signed-off-by: Mike Travis
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
