diff options
| author | Bjoern B. Brandenburg <bbb@cs.unc.edu> | 2011-07-25 12:42:27 -0400 |
|---|---|---|
| committer | Bjoern B. Brandenburg <bbb@cs.unc.edu> | 2011-07-25 12:42:27 -0400 |
| commit | a55f6ec8f509ddecaeb153d16065ab256bb8086a (patch) | |
| tree | f3165f5bf3d7409a1d10f8b34c6a4e2686c1dcdb /include/litmus/rt_param.h | |
| parent | 038e435397bb5c2913a9a5796982d6843fc8d4ea (diff) | |
locking: trace system call entry/exit cost
Diffstat (limited to 'include/litmus/rt_param.h')
| -rw-r--r-- | include/litmus/rt_param.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/litmus/rt_param.h b/include/litmus/rt_param.h index 3fb3c76225f2..57496662afde 100644 --- a/include/litmus/rt_param.h +++ b/include/litmus/rt_param.h | |||
| @@ -66,6 +66,9 @@ struct control_page { | |||
| 66 | * its non-preemptive section? */ | 66 | * its non-preemptive section? */ |
| 67 | int delayed_preemption; | 67 | int delayed_preemption; |
| 68 | 68 | ||
| 69 | /* locking overhead tracing: time stamp prior to system call */ | ||
| 70 | uint64_t ts_syscall_start; /* Feather-Trace cycles */ | ||
| 71 | |||
| 69 | /* to be extended */ | 72 | /* to be extended */ |
| 70 | }; | 73 | }; |
| 71 | 74 | ||