• Frederic Weisbecker's avatar
    perf tools: Add perf trace · 5f9c39dc
    Frederic Weisbecker authored
    This adds perf trace into the set of perf tools.
    
    It is written to fetch the tracepoint samples from perf events
    and display them, according to the events information given by
    the debugfs files through the util/trace* tools.
    
    It is a rough first shot and doesn't yet handle the cpu,
    timestamps fields and some other things.
    
    Example:
    
     perf record -f -e workqueue:workqueue_execution:record -F 1 -a
     perf trace
    
           kblockd/0-236   [000]     0.000000: workqueue_execution: thread=:236 func=cfq_kick_queue+0x0
         kondemand/0-360   [000]     0.000000: workqueue_execution: thread=:360 func=do_dbs_timer+0x0
         kondemand/0-360   [000]     0.000000: workqueue_execution: thread=:360 func=do_dbs_timer+0x0
         kondemand/1-361   [000]     0.000000: workqueue_execution: thread=:361 func=do_dbs_timer+0x0
         kondemand/1-361   [000]     0.000000: workqueue_execution: thread=:361 func=do_dbs_timer+0x0
         kondemand/1-361   [000]     0.000000: workqueue_execution: thread=:361 func=do_dbs_timer+0x0
         kondemand/1-361   [000]     0.000000: workqueue_execution: thread=:361 func=do_dbs_timer+0x0
         kondemand/1-361   [000]     0.000000: workqueue_execution: thread=:361 func=do_dbs_timer+0x0
         kondemand/1-361   [000]     0.000000: workqueue_execution: thread=:361 func=do_dbs_timer+0x0
         kondemand/1-361   [000]     0.000000: workqueue_execution: thread=:361 func=do_dbs_timer+0x0
         kondemand/1-361   [000]     0.000000: workqueue_execution: thread=:361 func=do_dbs_timer+0x0
         kondemand/1-361   [000]     0.000000: workqueue_execution: thread=:361 func=do_dbs_timer+0x0
         kondemand/1-361   [000]     0.000000: workqueue_execution: thread=:361 func=do_dbs_timer+0x0
         kondemand/1-361   [000]     0.000000: workqueue_execution: thread=:361 func=do_dbs_timer+0x0
         kondemand/1-361   [000]     0.000000: workqueue_execution: thread=:361 func=do_dbs_timer+0x0
         kondemand/1-361   [000]     0.000000: workqueue_execution: thread=:361 func=do_dbs_timer+0x0
    
    Todo:
    
    - A lot of things!
    Signed-off-by: default avatarFrederic Weisbecker <fweisbec@gmail.com>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
    Cc: Mike Galbraith <efault@gmx.de>
    Cc: "Luis Claudio R. Goncalves" <lclaudio@uudg.org>
    Cc: Clark Williams <williams@redhat.com>
    Cc: Jon Masters <jonathan@jonmasters.org>
    Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
    Cc: Christoph Hellwig <hch@infradead.org>
    Cc: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
    Cc: Zhaolei <zhaolei@cn.fujitsu.com>
    Cc: Li Zefan <lizf@cn.fujitsu.com>
    Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
    Cc: Masami Hiramatsu <mhiramat@redhat.com>
    Cc: Tom Zanussi <tzanussi@gmail.com>
    Cc: "Frank Ch. Eigler" <fche@redhat.com>
    Cc: Roland McGrath <roland@redhat.com>
    Cc: Jason Baron <jbaron@redhat.com>
    Cc: Paul Mackerras <paulus@samba.org>
    Cc: Jiaying Zhang <jiayingz@google.com>
    Cc: Anton Blanchard <anton@samba.org>
    LKML-Reference: <1250518688-7207-4-git-send-email-fweisbec@gmail.com>
    Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
    5f9c39dc
util.h 9.36 KB