[Bug kprobes/2062] Return probes does not scale well on SMP box

[bibo dot mao at intel dot com]

------- Additional Comments From bibo dot mao at intel dot com  2006-07-13 06:21 -------
Created an attachment (id=1157)
 --> (http://sourceware.org/bugzilla/attachment.cgi?id=1157&action=view)
test case for multi-thread contention kretprobe

This patch tests kretprobe performance by getpid() system call, generally it
will link tls-libc library where pid is cache in thread info and will generate
sys_getpid system call for later times.
So I compile getpid.c with --static option, it will be good if there is better
method.

-- 


http://sourceware.org/bugzilla/show_bug.cgi?id=2062

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