Messages in this thread | | | Date | Thu, 15 Apr 2010 16:55:25 +0200 | From | Michal Simek <> | Subject | sched_clock - microblaze |
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Hi Thomas and Steven,
I would like to improve time measuring for ftrace (Log below)
I looked at http://lkml.org/lkml/2009/11/16/181 where Thomas suggested to create sched_clock() function. I used the same solution as Wu proposed but it is not nice.
Is unimplemented sched_clock the reason why ftrace not show fine grain time?
Or is there any other thing which is wrong?
Thanks, Michal
Dumping ftrace buffer: --------------------------------- 0) ! 10000.00 us | } 0) <========== | 0) ! 10000.00 us | } 0) ! 10000.00 us | } 0) 0.000 us | get_seconds(); 0) 0.000 us | tcp_rcv_rtt_update(); 0) 0.000 us | tcp_ack(); 0) 0.000 us | tcp_rcv_rtt_update(); 0) 0.000 us | tcp_urg(); 0) | tcp_data_queue() { 0) 0.000 us | __sk_mem_schedule(); 0) 0.000 us | tcp_event_data_recv(); 0) 0.000 us | sock_def_readable(); 0) 0.000 us | } 0) 0.000 us | tcp_check_space(); 0) | __tcp_ack_snd_check() {
-- Michal Simek, Ing. (M.Eng) PetaLogix - Linux Solutions for a Reconfigurable World w: www.petalogix.com p: +61-7-30090663,+42-0-721842854 f: +61-7-30090663
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