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    Subject[PATCH 0/4] [GIT PULL] memory saving ring buffer for tip/tracing/ftrace

    This patch series implements a better memory management by the
    ring buffer. It only allocates the buffers for the online CPUS, as well
    as keeps the buffers to a minimum size until they are used.

    Please pull the latest tip/tracing/ftrace tree, which can be found at:


    Steven Rostedt (4):
    tracing: keep ring buffer to minimum size till used
    tracing: expand the ring buffers when an event is activated
    tracing: fix trace_wait to know to wait on all cpus or just one
    ring-buffer: only allocate buffers for online cpus

    kernel/trace/ring_buffer.c | 266 +++++++++++++++++++++++++++++++++++--------
    kernel/trace/trace.c | 118 +++++++++++++++----
    kernel/trace/trace.h | 3 +
    kernel/trace/trace_events.c | 8 ++
    4 files changed, 319 insertions(+), 76 deletions(-)

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      Last update: 2009-03-12 03:43    [from the cache]
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