git: kernel - Record token & mplock collisions in thread->td_wme
commit 2a9d466332523e6c2d4eb9fd0495ec2f79314658
Author: Matthew Dillon <dillon@apollo.backplane.com>
Date: Sat Dec 11 00:38:45 2010 -0800
kernel - Record token & mplock collisions in thread->td_wmesg
* Record token & mplock collisions which the lwkt thread schedule spins
on in the thread wmesg, which will show up in ps, top, etc.
This makes it a lot more obvious when a thread is stalling on a token
or the mplock and is generally superior to the old per-cpu collision
record.
Summary of changes:
sys/kern/lwkt_thread.c | 26 +++++---------------------
sys/kern/lwkt_token.c | 5 ++---
sys/sys/mplock2.h | 13 +++++++++++++
sys/sys/thread.h | 2 +-
4 files changed, 21 insertions(+), 25 deletions(-)
http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/2a9d466332523e6c2d4eb9fd0495ec2f79314658
--
DragonFly BSD source repository