| Commit message (Collapse) | Author | Age | Files | Lines | |
|---|---|---|---|---|---|
| * | x86, trace: Change user|kernel_page_fault to page_fault_user|kernel | H. Peter Anvin | 2013-11-11 | 1 | -2/+2 |
| | | | | | | | | | | | | | | | | | | Tracepoints are named hierachially, and it makes more sense to keep a general flow of information level from general to specific from left to right, i.e. x86_exceptions.page_fault_user|kernel rather than x86_exceptions.user|kernel_page_fault Suggested-by: Ingo Molnar <mingo@kernel.org> Acked-by: Seiji Aguchi <seiji.aguchi@hds.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com> Link: http://lkml.kernel.org/r/20131111082955.GB12405@gmail.com | ||||
| * | x86, trace: Add page fault tracepoints | Seiji Aguchi | 2013-11-08 | 1 | -0/+52 |
| This patch introduces page fault tracepoints to x86 architecture by switching IDT. Two events, for user and kernel spaces, are introduced at the beginning of page fault handler for tracing. - User space event There is a request of page fault event for user space as below. https://lkml.kernel.org/r/1368079520-11015-2-git-send-email-fdeslaur+()+gmail+!+com https://lkml.kernel.org/r/1368079520-11015-1-git-send-email-fdeslaur+()+gmail+!+com - Kernel space event: When we measure an overhead in kernel space for investigating performance issues, we can check if it comes from the page fault events. Signed-off-by: Seiji Aguchi <seiji.aguchi@hds.com> Link: http://lkml.kernel.org/r/52716E67.6090705@hds.com Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> | |||||
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index : op-kernel-dev | |
| Development kernel branch for OpenPOWER systems | Raptor Engineering, LLC |
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