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| author | Paul E. McKenney <[email protected]> | 2009-12-02 12:10:16 -0800 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2009-12-03 11:35:27 +0100 |
| commit | 8bfb2f8e655b9d0c45fde679fcd5fd97e34513db (patch) | |
| tree | 2a37bd385f3a6012ced116b1ff8d8cd3b8efb289 /tools/perf/scripts/python/check-perf-trace.py | |
| parent | d9a3da0699b24a589b27a61e1a5b5bd30d9db669 (diff) | |
rcu: Make RCU's CPU-stall detector be default
The RCU_CPU_STALL_DETECTOR costs almost nothing and has located
some bugs that might otherwise have been difficult to track
down. Make it be default for the TREE RCU implementations.
The vmlinux size impact is limited (on 64-bit x86 defconfig):
text data bss dec hex filename
8440248 1260076 995588 10695912 a334e8 vmlinux.before
8440774 1260060 995588 10696422 a336e6 vmlinux.after
+526 bytes - acceptable default cost.
For RAM starved systems, TINY_RCU does not support CPU-stall detection
and is much smaller, but then again it is a uniprocessor...
Signed-off-by: Paul E. McKenney <[email protected]>
Acked-by: Lai Jiangshan <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
LKML-Reference: <12597846162906-git-send-email->
[ v2: added image size calculations to the changelog ]
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/check-perf-trace.py')
0 files changed, 0 insertions, 0 deletions