spin_lock cause ?

["Kelly, Mark (RIS-BCT)" <Mark.Kelly@lexisnexis.com>]

Hi,

Perf report for our application shows:

  34.27%  [kernel]                    [k] _spin_lock
   8.19%  libjlib.so                  [.] CLZWExpander::expand(void*)
   4.62%  libjhtree.so                [.] CMRUCacheOf<CKeyIdAndPos, CJHTreeNode>
   1.97%  [kernel]                    [k] futex_wait_setup
   1.51%  [kernel]                    [k] native_write_msr_safe
   1.34%  [kernel]                    [k] futex_wake

Any suggestion for how to trace where/who is responsible for the spin_lock ?

thank you in advance,
mark



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