[sheepdog] [PATCH 0/5] add graph stat function

[Liu Yuan]

This patch set add a new command 'graph stat', this is useful to get how much
time each function spends in a top style view.

For a simple glance, we can see that our event_loop is doing too much.

$ collie trace graph stat
   Function Name                    |  Time(ms)
--------------------------------------------------
eventfd_xread                       | 110817.996257
do_process_work                     | 87415.051934
do_push_object                      | 84434.906931
push_cache_object                   | 84426.040582
gateway_create_and_write_obj        | 82382.884469
exec_local_req                      | 82038.293182
gateway_forward_request             | 81968.317720
event_loop                          | 48661.499542
do_event_loop                       | 48650.993934
xpwrite                             | 38091.275768
sheep_do_op_work                    | 36608.988329
peer_create_and_write_obj           | 36608.802587
default_create_and_write            | 36607.231493
object_cache_push                   | 28783.994126
do_background_push                  | 27332.938972
local_release_vdi                   | 3455.208848
object_cache_flush_vdi              | 3452.805846
read_cache_object_noupdate          | 2309.550495
...

Liu Yuan (5):
  collie: ranme SUBCMD_FLAG_XXX as CMD_XXX
  collie/trace: move trace_cat to graph subcommand
  util: add list_sort()
  collie/trace: add graph stat function
  collie/trace: use macro for the width of thread name

 collie/cluster.c    |   12 ++--
 collie/collie.c     |    4 +-
 collie/collie.h     |    4 +-
 collie/common.c     |    5 +-
 collie/node.c       |   16 ++---
 collie/trace.c      |  173 ++++++++++++++++++++++++++++++++++++++++++++++-----
 collie/vdi.c        |   36 +++++------
 include/list.h      |    3 +
 include/sheep.h     |    4 +-
 lib/util.c          |  137 ++++++++++++++++++++++++++++++++++++++++
 sheep/trace/graph.c |    1 +
 11 files changed, 337 insertions(+), 58 deletions(-)

-- 
1.7.9.5