DWS/chrony
1
0
Fork 0
mirror of https://gitlab.com/chrony/chrony.git synced 2025-12-04 16:15:07 -05:00
Code Issues Packages Projects Releases Wiki Activity

sys: set tick_update_hz to 100 by default in Linux driver

Browse Source 
We can't reliably detect the internal kernel HZ, it may not even be
fixed (CONFIG_NO_HZ). Use a fixed value of 100.
This commit is contained in:
Miroslav Lichvar
2014-05-22 15:49:11 +02:00
parent e8bb95ba55
commit 14687d003d
1 changed files with 4 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
sys_linux.c
View File

@@ -298,7 +298,10 @@ get_version_specific_details(void)
basic_freq_scale = dshift_hz / dhz; basic_freq_scale = dshift_hz / dhz;
nominal_tick = (1000000L + (hz/2))/hz; /* Mirror declaration in kernel */ nominal_tick = (1000000L + (hz/2))/hz; /* Mirror declaration in kernel */
max_tick_bias = nominal_tick / 10; max_tick_bias = nominal_tick / 10;
tick_update_hz = hz;
/* We can't reliably detect the internal kernel HZ, it may not even be fixed
(CONFIG_NO_HZ aka tickless), assume the lowest commonly used fixed rate */
tick_update_hz = 100;
/* The basic_freq_scale comes from: /* The basic_freq_scale comes from:
* the kernel increments the usec counter HZ times per second (if the timer * the kernel increments the usec counter HZ times per second (if the timer