Messages in this thread | | | From | Vaibhav Nagarnaik <> | Subject | [PATCH 0/2] Add tracepoints to trace all x86 system IRQs | Date | Fri, 29 Jul 2011 16:59:36 -0700 |
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This is a patch series aiming to trace all the x86 system IRQs. The tracepoints make it easier to understand IRQ interaction with other system events and how do the IRQs affect the system behavior.
Patch#0 adds irq_handler_{entry,exit} tracepoints to x86 timer interrupt handler. Patch#1 creates a irq_vectors/ event sub system and irq_vectors_{entry,exit} trace events. It adds tracepoints to all x86 IRQ vector handlers.
Currently the patch only adds tracepoints to x86. A similar approach can be taken with other architectures to trace IRQ vectors in the system.
Previous iterations of this patch set: https://lkml.org/lkml/2011/4/22/321 https://lkml.org/lkml/2011/7/14/309
Vaibhav Nagarnaik (2): trace,x86: Add tracepoint to x86 timer interrupt handler trace,x86: Add x86 irq vector entry/exit tracepoints
arch/x86/include/asm/irq_vectors.h | 50 ++++++++++++++++++++++++++ arch/x86/kernel/apic/apic.c | 7 ++++ arch/x86/kernel/cpu/mcheck/therm_throt.c | 3 ++ arch/x86/kernel/cpu/mcheck/threshold.c | 3 ++ arch/x86/kernel/irq.c | 6 +++- arch/x86/kernel/irq_work.c | 3 ++ arch/x86/kernel/smp.c | 7 ++++ arch/x86/kernel/time.c | 15 +++++--- arch/x86/kernel/traps.c | 3 ++ arch/x86/mm/tlb.c | 3 ++ include/trace/events/irq_vectors.h | 56 ++++++++++++++++++++++++++++++ 11 files changed, 149 insertions(+), 7 deletions(-) create mode 100644 include/trace/events/irq_vectors.h
-- 1.7.3.1
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