> On Sun, 29 Jul 2007 01:35:32 +0800, Dinesh Nair wrote: > > > On Fri, 27 Jul 2007 17:10:07 -0700, David G Lawrence wrote: > > > > > Attached is a slightly improved version of my ztdummy.c that should > > > work if system HZ is larger than 1000. > > > > david, > > > > this is excellent. i'll check it out a little bit on the various freebsd > > boxes we've got, and if it does work, i'll commit it to the zaptel-bsd > > subversion repository. > > just a cursory build and test on my hp nc6230 notebook running freebsd 6.2 > shows that your ztdumy gives about 99.53% accuracy as measured by zttest. > the original ztdummy used to vary from 94% to 99% and was quite > inconsistent in this regard. more testing is obviously required, > especially by systems which are not synced with ntp.
I don't know how long zttest does its testing, but with a stablized NTP synced clock, it should be 100% accurate over the somewhat longer term (say a few minutes). In other words, it should actually be more accurate over the long term than an un-synced Zaptel hardware timer. -DG David G. Lawrence President Download Technologies, Inc. - http://www.downloadtech.com - (866) 399 8500 Co-Founder, The FreeBSD Project - http://www.freebsd.org Pave the road of life with opportunities. _______________________________________________ --Bandwidth and Colocation Provided by http://www.api-digital.com-- Asterisk-BSD mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-bsd
