[Asterisk-Users] ztdummy inaccuracy on linux-2.6

[Tamas]

Hello,

I have some ugly numbers given by zttest for ztdummy on an AMD64 box
running linux-2.6.15 compiled for Athlon64.

linux-2.6.15, zaptel/branches/1.2 r900, jiffies
./zttest
Opened pseudo zap interface, measuring accuracy...
99.975586% 99.975586% 99.975586% 99.975586% 99.975586% 99.975586% 99.975586%
99.975586% 99.975586% 99.975586% 99.975586% 99.975586% 99.975586%
99.975586% 99.975586%
99.975586% 99.975586% 99.975586% 99.975586% 99.975586% 99.975586%
99.975586% 99.975586%
99.975586% 99.975586% 99.975586% 99.975586% 99.975586% 99.975586%
99.975586% 99.975586%
99.975586% 99.975586% 99.975586% 99.987793% 99.975586% 99.975586%
99.975586% 99.975586%
99.975586% 99.975586% 99.975586% 99.975586% 99.975586% 99.975586%
99.975586% 99.975586%
99.975586% 99.975586% 99.975586% 99.975586% 99.975586% 99.975586%
99.975586% 99.975586%
99.975586% 99.975586% 99.975586% 99.975586% 99.975586% 99.975586%
99.975586% 99.975586%
99.975586% 99.975586% 99.975586% 99.975586% 99.975586% 99.975586%
99.975586% 99.975586%
99.975586% 99.975586% 99.975586% 99.975586% 99.975586% 99.987793%
99.975586% 99.975586%
99.975586% 99.975586% 99.975586% 99.975586% 99.975586% 99.975586%
99.975586% 99.975586%
99.975586% 99.975586% 99.975586% 99.975586% 99.975586% 99.975586%
99.975586% 99.975586%
99.975586% 99.975586% 99.975586% 99.975586% 99.975586% 99.975586%
99.975586% 99.975586%
99.975586% 99.975586% 99.975586% 99.975586% 99.975586% 99.975586%
99.975586% 99.975586%
99.975586% 99.975586% 99.975586% 99.975586% 99.975586% 99.975586%
99.975586% 99.987793%
99.975586% 99.975586% 99.975586% 99.975586% 99.975586% 99.975586%
99.975586% 99.975586%
99.975586% 99.975586% 99.975586% 99.975586% 99.975586% 99.975586%
99.975586% 99.975586%
99.975586%
--- Results after 136 passes ---
Best: 99.987793 -- Worst: 99.975586 -- Average: 99.975853

linux-2.6.15, zaptel/branches/1.2 r900, RTC
Opened pseudo zap interface, measuring accuracy...
99.938965% 99.963379% 99.938965% 99.963379% 99.963379% 99.938965% 99.963379%
99.938965% 99.963379% 99.938965% 99.963379% 99.963379% 99.938965%
99.963379% 99.938965%
99.963379% 99.963379% 99.938965% 99.963379% 99.938965% 99.963379%
99.938965% 99.963379%
99.963379% 99.938965% 99.963379% 99.951172% 99.963379% 99.938965%
99.963379% 99.963379%
99.938965% 99.963379% 99.938965% 99.963379% 99.938965% 99.963379%
99.963379% 99.938965%
99.963379% 99.938965% 99.963379% 99.938965% 99.963379% 99.963379%
99.938965% 99.963379%
99.938965% 99.963379% 99.963379% 99.938965% 99.963379% 99.938965%
99.963379% 99.938965%
99.963379% 99.963379% 99.938965% 99.963379% 99.938965% 99.963379%
99.938965% 99.963379%
99.963379% 99.938965% 99.963379% 99.938965% 99.951172% 99.938965%
99.963379% 99.963379%
99.938965% 99.963379% 99.938965% 99.963379% 99.963379% 99.938965%
99.963379% 99.938965%
99.963379% 99.938965% 99.963379% 99.963379% 99.938965% 99.963379%
99.938965% 99.963379%
99.938965% 99.963379% 99.963379% 99.938965% 99.963379% 99.938965%
99.963379% 99.938965%
99.963379%
--- Results after 96 passes ---
Best: 99.963379 -- Worst: 99.938965 -- Average: 99.952942

 linux-2.6.15, zaptel/branches/1.2 r900+patch
bugs.digium.com/view.php?id=5971, RTC

Opened pseudo zap interface, measuring accuracy...
99.987793% 99.719238% 99.707031% 100.000000% 99.890137% 99.865723%
100.000000%
99.987793% 100.000000% 99.975586% 100.000000% 99.987793% 99.975586%
100.000000% 100.000000%
99.987793% 99.975586% 99.768066% 99.768066% 99.987793% 99.926758%
99.926758% 99.987793%
99.975586% 100.000000% 99.975586% 99.987793% 100.000000% 100.000000%
99.975586% 99.938965%
100.000000% 99.975586% 99.816895% 99.816895% 100.000000% 99.987793%
99.975586% 100.000000%
99.975586% 100.000000% 99.987793% 100.000000% 99.975586% 99.987793%
100.000000% 99.719238%
99.707031% 99.987793% 99.877930% 99.865723% 100.000000% 99.987793%
99.975586% 100.000000%
99.987793% 100.000000% 99.975586% 100.000000% 99.987793% 99.987793%
100.000000% 99.768066%
99.768066% 99.975586% 99.938965% 99.926758% 99.975586% 100.000000%
99.987793% 100.000000%
99.975586% 100.000000% 99.975586% 99.987793% 100.000000% 100.000000%
99.987793% 99.829102%
99.816895% 99.975586% 99.987793% 99.975586% 100.000000% 99.987793%
99.975586% 100.000000%
99.975586% 99.987793% 100.000000% 100.000000% 99.719238% 99.694824%
100.000000% 99.890137%
99.877930% 99.987793% 100.000000% 99.975586% 99.987793% 100.000000%
99.975586% 99.987793%
99.987793% 100.000000% 99.975586% 100.000000% 99.780273% 99.755859%
100.000000% 99.938965%
99.938965% 99.975586% 100.000000% 99.987793% 99.975586% 100.000000%
99.987793% 100.000000%
99.975586% 100.000000% 99.987793% 99.975586% 99.816895% 99.816895%
100.000000% 100.000000%
99.975586% 99.975586% 99.987793% 100.000000% 100.000000% 99.987793%
99.975586% 100.000000%
99.975586%
--- Results after 136 passes ---
Best: 100.000000 -- Worst: 99.694824 -- Average: 99.951973

HW:
Tyan Tomcat K8E, Athlon64 3000+, 1GB RAM, 3ware 8006, 2x Maxtor HDD

SW:
Ubuntu 5.10, linux-2.6.15, zaptel from 1.2 branch

Any idea what can be wrong?

Thanks in advance,
	Tamas