Re: When and how to use ftrace?

2010-06-09 Thread Ryan Wang
2010/6/9 Neependra Khare : > > > On Wed, Jun 9, 2010 at 11:02 AM, Ryan Wang wrote: >> >> I really want to know is the differences between ftrace and other kernel >> debug >> tools such as kdump, kdb, etc. > > Lets say you want to know what ext2/ext3/ext4 functions are called when you > run mkdir c

Re: When and how to use ftrace?

2010-06-09 Thread Ryan Wang
2010/6/9 wu zhangjin : > Hi, > > On Wed, Jun 9, 2010 at 4:14 PM, Ryan Wang wrote: > [...] -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecar...@nl.linux.org Please read the FAQ at http://kernelnewbies.org/FAQ >>> >>> >> >> Seems f

Re: When and how to use ftrace?

2010-06-08 Thread Neependra Khare
On Wed, Jun 9, 2010 at 11:02 AM, Ryan Wang wrote: > > I really want to know is the differences between ftrace and other kernel > debug > tools such as kdump, kdb, etc. > Lets say you want to know what ext2/ext3/ext4 functions are called when you run mkdir command on ext2/ext3/ext4 mounted filesy

Re: When and how to use ftrace?

2010-06-08 Thread Ryan Wang
2010/6/9 Steven Rostedt : > On Wed, 2010-06-09 at 09:38 +0800, Ryan Wang wrote: >> Hi all, >> >>        I'm new to kernel development, and I'm learning >> ftrace recently. I have one question: >>        When to use ftrace, or in which cases ftrace can be >> more efficient? > > I can't really answer