什麼是 rrdtool 呢 ? 其實他和 mrtg 是同一家族,
主要都是在產生 time-series 的圖檔(如流量,負載,溫度,人數…..),
不過因為 mrtg 當初的考量是畫兩種資料在圖上(或四個值),後來原作者覺得不足,所以另外又開發了 rrdtool,
rrdtool 本身可和 mrtg 結合,但其結合基本上僅在於將 mrtg 的文字檔的log 轉成 rrd 儲存格式,
通常 user 尚需要 mrtg-rrd/rrdcgi 去轉換,不過總覺得美中不足,
雖然還有像 my14all (http://my14all.sourceforge.net/) 這類的 tools 可以轉換並畫圖,
但其追根究底 還是以 rrdtool 為 base, 所以 rrdtool 變成了最終也是最好的選擇。
:item2: rrdtool 教學
TO: ALL EMPLOYEES
SUBJECT: SPECIAL HIGH INTENSITY TRAINING
In light of the increase in competitor activity and to assure highest
levels of quality work and productivity from employees, it will be our
policy to keep all employees well trained through our program of SPECIAL
HIGH INTENSITY TRAINING (S.H.I.T.)
We are trying to give employees more S.H.I.T. than anyone else. If
you feel that you do not receive your share of S.H.I.T. on the job, please
see your manager.
You will be placed on the top of the S.H.I.T. list and managers are
especially skilled at seeing that you get all the S.H.I.T. that you
can handle. Employees who don’t take S.H.I.T. will be placed in
DEPARTMENTAL EMPLOYEE EVALUATION PROGRAMS (D.E.E.P. S.H.I.T.).
Those who fail to take D.E.E.P. S.H.I.T. seriously will have to go to
EMPLOYEE ATTITUDE TRAINING (E.A.T. S.H.I.T.).
Since our managers took S.H.I.T. before they were promoted, they don’t
have to take S.H.I.T. again. If you are already full of S.H.I.T.
you may be interested in training others. We can add your name
to our BASIC UNDERSTANDING LECTURE LIST (B.U.L.L. S.H.I.T.).
Those who are full of B.U.L.L. S.H.I.T. will get the S.H.I.T. jobs,
and can apply for promotion to DIRECTOR OF INTENSITY PROGRAMMING
If you have any further questions, please direct them to our
HEAD OF TRAINING, SPECIAL HIGH INTENSITY TRAINING (H.O.T. S.H.I.T.).
BOSS IN GENERAL
SPECIAL HIGH INTENSITY TRAINING (B.I.G. S.H.I.T.)
BOY : May I hold your hand?
GIRL : No thanks, it isn’t heavy.
GIRL : Say you love me! Say you love me!
BOY : You love me…
GIRL : If we become engaged will you give me a ring??
BOY : Sure, what’s your phone number??
GIRL : I think the poorest people are the happiest.
BOY : Then marry me and we’ll be the happiest couple
GIRL : Darling, I want to dance like this forever.
BOY : Don’t you ever want to improve??
BOY : I love you and I could die for you!
GIRL : How soon??
BOY : I would go to the end of the world for you!
GIRL : Yes, but would you stay there??
SHARON : Have you ever had a hot passionate, burning kiss??
TRACY : I did once. He’d forgotten to take the cigarette out of his mouth.
MAN : You remind me of the sea.
WOMAN : Because I’m wild, romantic and exciting?
MAN : NO, because you make me sick.
WIFE : You tell a man something, it goes in one ear and comes out of the other.
HUSBAND : You tell a woman something: It goes in both ears and comes out of the mouth.
MARY : John says I’m pretty. Andy says I’m ugly.What do u think,
PETER : A bit of both. I think you’re pretty ugly.
1) Girlfriend : “…And are you sure you love me and no one else ?”
Boyfriend : “Dead Sure! I checked the whole list again yesterday”.
2) Teacher : “Which is more important to us, the sun or the moon?”
Pupil : “The moon”.
Teacher : “Why?”
Pupil : “The moon gives us light at night when we need it but the sun gives us light only in the day time when we don’t need it”.
3) Teacher : “What do you call a person who keeps on talking when people are no longer interested?”
Pupil : “A teacher”.
4) Waiter : “Would you like your coffee black?”
Customer : “What other colors do you have?”
5) My father is so old that when he was in school, history was called current affairs.
6) Teacher : “Sam, you talk a lot !”
Sam : “It’s a family tradition”.
Teacher : “What do you mean?”
Sam : “Sir, my grandpa was a street hawker, my father is a teacher”.
Teacher : “What about your mother?”
Sam : “She’s a woman”.
7) Tom : “How should I convey the news to my father that I’ve failed?”
David: “You just send a telegram: Result declared, past year’s performance repeated”.
8) Teacher : “Now, children, if I saw a man beating a donkey and stopped him, what virtue would I be showing?”
Student : “Brotherly love”.
9) Teacher : “Now, Sam, tell me frankly do you say prayers before eating?”
Sam : “No sir, I don’t have to, my mom is a good cook”.
10) Patient : “What are the chances of my recovering doctor?”
Doctor : “One hundred percent. Medical records show that nine out of ten people die of the disease you have. Yours is the tenth case I’ve treated. The others all died”.
11) Teacher : ” Can anybody give an example of COINCIDENCE?”
One Student : “Sir, my Mother and Father got married on the same day and at the same time.”
12) Teacher : ” George Washington not only chopped down his father’s Cherry tree, but also admitted doing it.
Now do you know why his father didn’t punish him ?”
One Student: ” Because George still had the axe in is hand.”