Messages in this thread | | | Date | Mon, 01 Mar 2010 14:24:58 -0800 | From | "H. Peter Anvin" <> | Subject | Re: [GIT PULL] x86/cpu changes for v2.6.34 |
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On 03/01/2010 11:42 AM, Steven Rostedt wrote: > > As Frederic has said you can use 'ftrace=function_graph' on the kernel > command line. It will be initialized in early_initcall (which I believe > is before CPUs are set up. Then add a tracing_off() after the trouble > code. You can make the trace buffers bigger with the kernel command > line: > > trace_buf_size=10000000 > > The above will make the trace buffer 10Meg per CPU. Unlike the > "buffer_size_kb" file, this number is in bytes, even though it will > round to the nearest page. (I probably should make this into kb, and > rename it to trace_buf_size_kb, and deprecate trace_buf_size). >
Memory sizes specified on the kernel command line should generally be in units of bytes, but accepting suffixes.
-hpa
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