Cheng Hu wrote: > > > Hello, > > Problem 1 > ========= > > This may seem absurd but I have a need to specify --start 0 or some small > number with rrdtool create. That is, I want it to start timing from 0 or 1 > seconds after 1970. However if I specify 0 or 1, the start time defaults > to now. If I specify 100 say, I get an error message asking if I meant > month 100 instead, but I don't. (If you really want to know why I need to > do this, I've included it at the end)
The workaround probably is to use the following format: "--start" "19700101 00:00" Note that this assumes UTC time. For Europe, use time "19700101 01:00" This may not work because of internal checks in the code, in which case you really need to change the check. That shouldn't be hard. > Problem 3 > ========= > I'd like to display seconds since 1970 on my x-axis, but no strftime > format will let me do it. Is there a way? Hack the souce and just print the number. A single "%s", not together with %lf (in which case it would mean the SI unit) could mean seconds since the epoch. I think that already is in the developers release. > (Reason: I am running of network stack monitoring program that I wrote > that generates data on microsecond resolution, and generates a lot of > data. I'd like to graph this using rrdtool (is there a better tool for > this purpose?) so I convert microseconds to second, and seconds times > 1000000. To avoid overflow, I need to start from time 0) RRDtool is not a picture generator. There are better tools for that. Don't ask me which is best. Why not simply use "gd" yourself? HTH -- __________________________________________________________________ / [EMAIL PROTECTED] [EMAIL PROTECTED] \ | work private | | My employer is capable of speaking therefore I speak only for myself | +----------------------------------------------------------------------+ | Technical questions sent directly to me will be nuked. Use the list. | +----------------------------------------------------------------------+ | http://faq.mrtg.org/ | | http://rrdtool.eu.org --> tutorial | +----------------------------------------------------------------------+ -- Unsubscribe mailto:[EMAIL PROTECTED] Help mailto:[EMAIL PROTECTED] Archive http://www.ee.ethz.ch/~slist/rrd-users WebAdmin http://www.ee.ethz.ch/~slist/lsg2.cgi
