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This patch adds the core of LITMUS^RT:
- library functionality (heaps, rt_domain, prioritization, etc.)
- budget enforcement logic
- job management
- system call backends
- virtual devices (control page, etc.)
- scheduler plugin API (and dummy plugin)
This code compiles, but is not yet integrated with the rest of Linux.
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This patch integrates LITMUS^RT's sched_trace_XXX() macros with
Linux's notion of tracepoints. This is useful to visualize schedules
in kernel shark and similar tools. Historically, LITMUS^RT's
sched_trace predates Linux's tracepoint infrastructure.
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This patch introduces the sched_trace infrastructure, which in
principle allows tracing the generated schedule. However, this patch
does not yet integrate the callbacks with the kernel.
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This patch adds support for tracing release latency in LITMUS^RT.
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This patch adds a basic litmus/litmus.h, which is required for basic
LITMUS^RT infrastructure to compile.
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This patch adds the PCB extensions required for LITMUS^RT.
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This patch adds the infrastructure for the TRACE() debug macro.
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This patch hooks up Feather-Trace's ft_irq_fired() handler with
Linux's interrupt handling infrastructure.
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This patch adds the main infrastructure for tracing overheads in
LITMUS^RT. It does not yet introduce any tracepoints into the kernel.
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This patch adds the ftdev device driver, which is used to export
samples collected with Feather-Trace to userspace.
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This patch adds the simple fallback implementation and creates dummy
hooks in the x86 and ARM Kconfig files.
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