Messages in this thread | | | Date | Thu, 9 Oct 2008 12:23:13 +0200 | From | "Frédéric Weisbecker" <> | Subject | Re: [PATCH] rudimentary tracing for Classic RCU |
| |
2008/10/9 Paul E. McKenney <paulmck@linux.vnet.ibm.com>: > Hello! > > This is a tracing patch for Classic RCU, which creates an "rcu/rcucb" > file in debugfs. This patch can be handy when you need to work out > why RCU is refusing to end the current grace period. > > Reading from the file results in something like the following: > > rcu: cur=1129 completed=1128 np=0 s=0 > 0,3,7 > rcu_bh: cur=-287 completed=-287 np=0 s=0 > > online: 0-7
Hi Paul,
Why don't you use the ring-buffer tracing engine? You will really make your life better by putting it as a tracer in kernel/trace and by using the relevant API. That will avoid you to manage the debugfs things, the memory allocation, the buffer managment.....
| |