From mboxrd@z Thu Jan 1 00:00:00 1970 From: zhengda1936@gmail.com (Da Zheng) Date: Wed, 06 Jul 2011 17:46:09 -0700 Subject: can we enable perf during the kernel initialization? Message-ID: <4E1501D1.4030805@gmail.com> To: kernelnewbies@lists.kernelnewbies.org List-Id: kernelnewbies.lists.kernelnewbies.org Hello, Does the current kernel allow us to enable perf during the kernel initialization? perf is initialized in a very early stage, but I cannot find any kernel parameters that can enable perf. Has anyone tried to use perf to profile the kernel during its initialization? Thanks, Da