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test: add support for testing with asymmetric jitter

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This commit is contained in:
Miroslav Lichvar 2016-08-24 13:13:20 +02:00
parent 648bf8bd3e
commit dd02d67224
1 changed files with 13 additions and 3 deletions
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16
test/simulation/test.common
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@ -31,6 +31,7 @@ default_time_offset=1e-1
default_freq_offset=1e-4
default_base_delay=1e-4
default_jitter=1e-4
default_jitter_asymmetry=0.0
default_wander=1e-9
default_refclock_jitter=""
default_refclock_offset=0.0
@ -154,7 +155,16 @@ get_wander_expr() {
get_delay_expr() {
echo "(+ $base_delay (* $jitter (exponential)))"
local direction=$1 asym
if [ $jitter_asymmetry == "0.0" ]; then
asym=""
elif [ $direction = "up" ]; then
asym=$(awk "BEGIN {print 1 - 2 * $jitter_asymmetry}")
elif [ $direction = "down" ]; then
asym=$(awk "BEGIN {print 1 + 2 * $jitter_asymmetry}")
fi
echo "(+ $base_delay (* $asym $jitter (exponential)))"
}
get_refclock_expr() {
@ -378,8 +388,8 @@ run_test() {
echo "node${i}_shift_pll = $shift_pll"
for j in $(seq 1 $nodes); do
[ $i -eq $j ] && continue
echo "node${i}_delay${j} = $(get_delay_expr)"
echo "node${j}_delay${i} = $(get_delay_expr)"
echo "node${i}_delay${j} = $(get_delay_expr up)"
echo "node${j}_delay${i} = $(get_delay_expr down)"
done
done > tmp/conf