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| author | Jason Yeh <jason.yeh@amd.com> | 2008-07-23 23:05:53 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-26 11:48:16 +0200 |
| commit | 1a960b402a51d80abf54e3f8e4972374ffe5f22d (patch) | |
| tree | 108222afe94df145e7a71f44bb077067c35f0131 /arch/x86/kernel/relocate_kernel_64.S | |
| parent | 6852fd9b86d05063c6ef49d2e12e061cc7f6a105 (diff) | |
| download | linux-1a960b402a51d80abf54e3f8e4972374ffe5f22d.tar.gz linux-1a960b402a51d80abf54e3f8e4972374ffe5f22d.tar.bz2 linux-1a960b402a51d80abf54e3f8e4972374ffe5f22d.zip | |
Oprofile Multiplexing Patch
This patch introduces multiplexing support for the Oprofile kernel
module. It basically adds a new function pointer in oprofile_operator
allowing each architecture to supply its callback to switch between
different sets of event when the timer expires. Userspace tools can
modify the time slice through /dev/oprofile/time_slice.
It also modifies the number of counters exposed to the userspace through
/dev/oprofile. For example, the number of counters for AMD CPUs are
changed to 32 and multiplexed in the sets of 4.
Signed-off-by: Jason Yeh <jason.yeh@amd.com>
Signed-off-by: Robert Richter <robert.richter@amd.com>
Cc: oprofile-list <oprofile-list@lists.sourceforge.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/relocate_kernel_64.S')
0 files changed, 0 insertions, 0 deletions