abonerib/bscpkgs
Archived
1
0
Fork 0
forked from rarias/bscpkgs
Code Pull Requests 1 Activity

nanos6: add patch to use CLOCK_MONOTONIC in CTF

Browse Source
This commit is contained in:
Rodrigo Arias
2021-03-10 18:42:59 +01:00
parent b192fc44f5
commit 4780a81d70
2 changed files with 23 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
bsc/nanos6/clock-monotonic.patch Normal file
View File

@@ -0,0 +1,21 @@
diff --git a/src/instrument/ctf/ctfapi/CTFClock.hpp b/src/instrument/ctf/ctfapi/CTFClock.hpp
index 7df821c9..27cf269b 100644
--- a/src/instrument/ctf/ctfapi/CTFClock.hpp
+++ b/src/instrument/ctf/ctfapi/CTFClock.hpp
@@ -9,13 +9,9 @@
#include <time.h>
-// We prefer CLOCK_MONOTONIC_RAW to prevent dynamic NTF time adjustments.
-// However, if the system does not support it, we fall back to CLOCK_MONOTONIC
-
-#ifdef CLOCK_MONOTONIC_RAW
-#define CTF_CLOCK CLOCK_MONOTONIC_RAW
-#else
+// Always use the CLOCK_MONOTONIC clock as it is drift-corrected by NTP,
+// and is the most reliable to compensate changes the oscillator
+// frequency. It is not affected by time jumps.
#define CTF_CLOCK CLOCK_MONOTONIC
-#endif
#endif // CTF_CLOCK_HPP