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Subject[PATCH 0/8] tracing: further shrinking trace events
patch 1-2: reduce per trace event foot print
patch 3-5: convert some trace events to DEFINE_EVENT
patch 6-8: do some cleanups and thus shrink text size a bit

Save ~5.7K in text and ~2.9K in data:

text data bss dec hex filename
7018612 2034376 7251132 16304120 f8c7f8 vmlinux.o.orig
7012847 2031440 7251132 16295419 f8a5fb vmlinux.o

And save considerable memory allocated by trace_define_event().

---
include/linux/syscalls.h | 2 -
include/trace/events/ext4.h | 61 +++--------
include/trace/events/sched.h | 32 ++-----
include/trace/events/timer.h | 80 ++++++--------
include/trace/syscall.h | 1 -
kernel/trace/trace.h | 2 +
kernel/trace/trace_events.c | 209 ++++++++++++++++--------------------
kernel/trace/trace_events_filter.c | 27 +++--
kernel/trace/trace_export.c | 8 +--
kernel/trace/trace_kprobe.c | 10 +--
kernel/trace/trace_syscalls.c | 7 +-
11 files changed, 174 insertions(+), 265 deletions(-)


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