8502fa874
Denys Vlasenko
2019-02-15
Subject
ntpd: increase SLEW_THRESHOLD from 0.125 to 0.5
Binary
No binary (build failed)
Architecture & Compiler Flags
—
Build Log
(log yok)
Commit Diff GitHub →
networking/ntpd.c+4 -5
| @@ -177,12 +177,11 @@ | |
| */ | |
| #define STEP_THRESHOLD 1 | |
| /* Slew threshold (sec): adjtimex() won't accept offsets larger than this. | |
| - | * Using exact power of 2 (1/8) results in smaller code |
| + | * Using exact power of 2 (1/8, 1/2 etc) results in smaller code |
| */ | |
| - | #define SLEW_THRESHOLD 0.125 |
| - | //^^^^^^^^^^^^^^^^^^^^^^^^^^ TODO: man adjtimex about tmx.offset: |
| - | // "Since Linux 2.6.26, the supplied value is clamped to the range (-0.5s, +0.5s)" |
| - | // - can use this larger value instead? |
| + | #define SLEW_THRESHOLD 0.5 |
| + | // ^^^^ used to be 0.125. |
| + | // Since Linux 2.6.26 (circa 2006), kernel accepts (-0.5s, +0.5s) range |
| /* Stepout threshold (sec). std ntpd uses 900 (11 mins (!)) */ | |
| //UNUSED: #define WATCH_THRESHOLD 128 | |