kernel/git/stable/linux.git/drivers/oprofile/oprofile_stats.c, branch master

drivers: Remove CONFIG_OPROFILE support

2021-01-29T04:36:24+00:00

The "oprofile" user-space tools don't use the kernel OPROFILE support any more, and haven't in a long time. User-space has been converted to the perf interfaces. Remove kernel's old oprofile support. Suggested-by: Christoph Hellwig Suggested-by: Linus Torvalds Signed-off-by: Viresh Kumar Acked-by: Robert Richter Acked-by: Paul E. McKenney #RCU Acked-by: William Cohen Acked-by: Al Viro Acked-by: Thomas Gleixner

oprofilefs_create_...() do not need superblock argument

2013-09-04T02:52:48+00:00

same story as with oprofilefs_mkdir() Signed-off-by: Al Viro

oprofilefs_mkdir() doesn't need superblock argument

2013-09-04T02:52:47+00:00

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

don't bother with passing superblock to oprofile_create_stats_files()

2013-09-04T02:52:47+00:00

Signed-off-by: Al Viro

percpu: make percpu symbols in oprofile unique

2009-10-29T13:34:13+00:00

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

oprofile: Adding switch counter to oprofile statistic variables

2009-07-20T14:43:21+00:00

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

oprofile: Implement performance counter multiplexing

2009-07-20T14:33:53+00:00

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

oprofile: reset bt_lost_no_mapping with other stats

2009-07-10T10:35:36+00:00

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

oprofile: fixing whitespaces in drivers/oprofile/*

2008-10-16T13:01:40+00:00

Signed-off-by: Robert Richter

oprofile: more whitespace fixes

2008-10-15T18:55:51+00:00

Signed-off-by: Robert Richter