mark-shih.blogspot.com

MarkS Note

Wednesday, October 24, 2012. 話說,個人覺得"Data alignment"的部份自己略有小著墨,但這兩三天卻被有關Data alignment的給弄掛了狀況是這樣的, 為何傳遞的封包大小計算經sizeof(X)應該為58,但卻會大於我自己認為的大小？經過網路上搜尋後才意識到, 對於32bit(4 Bytes)的CPU在擷取資料時會為了效率問題而執行"Data Alignment的動作, 所以儲存的資料皆為 4 Bytes的倍數為主.下列即為人家所探討的部份. (特別是下列Ex3 Ex5的解釋, 我覺得非常有意思). Http:/ kf99916cs.blogspot.tw/2012/10/data-structure-alignment.html. Http:/ kezeodsnx.pixnet.net/blog/post/27585076-data-structure%E7%9A%84%E5%B0%8D%E9%BD%8A%28alignment%29. Data Structure Alignment 究竟是何物？ Ex 1: 使用系統預設的alignment下為4B...

http://mark-shih.blogspot.com/

OVERVIEW OF mark-shih.blogspot.com

TRAFFIC RANK

>1,000,000

REVIEWS

0

PAGES IN THIS WEBSITE

16

LINKS TO THIS WEBSITE

CONTACTS

ADDRESSES

SOCIAL LINKS

ONLINE SINCE

WEBSITE DETAILS

SEO

PAGES

SIMILAR SITES

TRAFFIC RANK FOR MARK-SHIH.BLOGSPOT.COM

TODAY'S RATING

>1,000,000

TRAFFIC RANK - AVERAGE PER MONTH

BEST MONTH

October

AVERAGE PER DAY Of THE WEEK

HIGHEST TRAFFIC ON

Tuesday

TRAFFIC BY CITY

Sign up

CUSTOMER REVIEWS

Average Rating: 3.6 out of 5 with 10 reviews

5 star

2

4 star

6

3 star

0

2 star

0

1 star

2

Hey there! Start your review of mark-shih.blogspot.com

AVERAGE USER RATING

Write a Review

WEBSITE PREVIEW

LOAD TIME

0.4 seconds

FAVICON PREVIEW

16x16
32x32

CONTACTS AT MARK-SHIH.BLOGSPOT.COM

ADD CONTACT

Login

TO VIEW CONTACTS

Remove Contacts

FOR PRIVACY ISSUES

CONTENT

PAGES IN
THIS WEBSITE

16

SSL

EXTERNAL LINKS

0

SITE IP

172.217.164.97

LOAD TIME

0.368 sec

SCORE

6.2

PAGE TITLE

MarkS Note | mark-shih.blogspot.com Reviews

<META> DESCRIPTION

Wednesday, October 24, 2012. 話說,個人覺得Data alignment的部份自己略有小著墨,但這兩三天卻被有關Data alignment的給弄掛了狀況是這樣的, 為何傳遞的封包大小計算經sizeof(X)應該為58,但卻會大於我自己認為的大小？經過網路上搜尋後才意識到, 對於32bit(4 Bytes)的CPU在擷取資料時會為了效率問題而執行Data Alignment的動作, 所以儲存的資料皆為 4 Bytes的倍數為主.下列即為人家所探討的部份. (特別是下列Ex3 Ex5的解釋, 我覺得非常有意思). Http:/ kf99916cs.blogspot.tw/2012/10/data-structure-alignment.html. Http:/ kezeodsnx.pixnet.net/blog/post/27585076-data-structure%E7%9A%84%E5%B0%8D%E9%BD%8A%28alignment%29. Data Structure Alignment 究竟是何物？ Ex 1: 使用系統預設的alignment下為4B...

<META> KEYWORDS

1 marks note

2 linux下data alignment工作方式

3 花點時間紀錄一下自己最近所發生過的小狀況啦～

4 1 data alignment

5 它是為了加快執行速度而有的一種方式

6 struct align test

7 pragma pack 2

8 struct d {

9 int a;

10 char b;

CONTENT

Page content here

KEYWORDS ON PAGE

marks note,linux下data alignment工作方式,花點時間紀錄一下自己最近所發生過的小狀況啦～,1 data alignment,它是為了加快執行速度而有的一種方式,struct align test,pragma pack 2,struct d {,int a;,char b;,pragma pack,struct mixeddata {,char data1;,short data2;,int data3;,char data4;,memory offset,struct

SERVER

GSE

CONTENT-TYPE

utf-8

GOOGLE PREVIEW

MarkS Note | mark-shih.blogspot.com Reviews

https://mark-shih.blogspot.com

Wednesday, October 24, 2012. 話說,個人覺得"Data alignment"的部份自己略有小著墨,但這兩三天卻被有關Data alignment的給弄掛了狀況是這樣的, 為何傳遞的封包大小計算經sizeof(X)應該為58,但卻會大於我自己認為的大小？經過網路上搜尋後才意識到, 對於32bit(4 Bytes)的CPU在擷取資料時會為了效率問題而執行"Data Alignment的動作, 所以儲存的資料皆為 4 Bytes的倍數為主.下列即為人家所探討的部份. (特別是下列Ex3 Ex5的解釋, 我覺得非常有意思). Http:/ kf99916cs.blogspot.tw/2012/10/data-structure-alignment.html. Http:/ kezeodsnx.pixnet.net/blog/post/27585076-data-structure%E7%9A%84%E5%B0%8D%E9%BD%8A%28alignment%29. Data Structure Alignment 究竟是何物？ Ex 1: 使用系統預設的alignment下為4B...

INTERNAL PAGES

mark-shih.blogspot.com

1

MarkS Note: April 2011

http://mark-shih.blogspot.com/2011_04_01_archive.html

Sunday, April 24, 2011. Http:/ blog.roodo.com/eshingx/archives/1731986.html). Reference from http:/ linuxbyte.net/view.php? 65306;包含設備驅動代碼。每類設備有相應的子目錄，如. 65306;內核頭檔，對每一種體系結構，分別有相應的子目錄。 Setup arch(&command line);. Parse options(command line);. Kernel thread(init,NULL, CLONE FS CLONE FILES CLONE SIGNAL). Processor type and features - -. 3GB) Maximum Virtual Memory. General setup - -. ELF) Kernel core (/proc/kcore) format. Kernel support for ELF binaries. File systems - -. Proc file system support. Net/netw...

2

MarkS Note: November 2011

http://mark-shih.blogspot.com/2011_11_01_archive.html

Monday, November 14, 2011. What is different between fork() and vfork()? Http:/ csie-tw.blogspot.com/2009/04/vforkuclinux.html. 節錄自：大黑狗之嵌入式系統專案實務與產業觀察. 65114;，但呼叫 vfork(). 會被暫停，直到被複製出來的 child process. 上；首先我們必須先介紹一下 ”copy-on-write”. 一個程式在執行時會佔據記憶體空間，粗略可分為程式段、資料段、堆疊段與常數段，其中程式段與堆疊段是唯讀的，資料段與堆疊段的內容則有可能在執行時期被改變。 Linux. 配置堆疊段，其他的記憶體區段都是共用的；實際上在 child process. 去執行另一個程式前，諸如程式段以及常數段這些內容不可以被改變的記憶體區段始終可以共用。可是資料段就不能一直共用，如果 parent. 去執行其他程式是最常用的流程，以此說來，雖然每個 process. 都必須有獨立的資料段，但馬上為 child process. Links to this post.

3

MarkS Note: January 2012

http://mark-shih.blogspot.com/2012_01_01_archive.html

Tuesday, January 10, 2012. C語言中資料結構(struct)的大小 - attribute ( packed). 轉： http:/ chunchaichang.blogspot.com/2010/06/cstruct-attributepacked.html? C語言中資料結構(struct)的大小 - attribute ( packed). 當要使用到時，也不會想去用手算到底佔掉多少，大多是直接使用sizeof來做計算。做最佳化，也就是資料對齊。為了這個目的，compiler會為struct多準備一些記憶體。 Printf("sizeof(ABC) = %d n", sizeof(struct ABC) ;. Printf("sizeof(DEF) = %d n", sizeof(struct DEF) ;. 1 若我們直接去計算struct ABC和strcut DEF時，. Struct ABC = 4 6 4 = 14 (struct ABC用掉14個byte). Strcut DEF = 4 3 = 7 (struct DEF用掉7個byte). SESSION...

4

MarkS Note: October 2011

http://mark-shih.blogspot.com/2011_10_01_archive.html

Friday, October 28, 2011. Ref: http:/ linux.sheup.com/linux/linux2601.htm. Ref: http:/ tc.wangchao.net.cn/bbs/detail 1614627.html. Ref: http:/ blog.chinaunix.net/space.php? Linux設備驅動程式在Linux的內核源代碼中佔有很大的比例，源代碼的長度日益增加，主要是驅動程式的增加。在Linux內核的不斷升級過程中，驅動程式的結構還是相對穩定。在2.0.xx到2.2.xx的變動裏，驅動程式的編寫做了一些改變，但是從2.0.xx的驅動到2.2.xx的移植只需做少量的工作。網路設備在Linux裏做專門的處理。Linux的網路系統主要是基於BSD unix的 socket. 機制。在系統和驅動程式之間定義有專門的資料結構(sk buff)進行資料的傳遞。系統裏支援對發送資料和接收資料的緩存，提供流量控制機制，提供對多協定的支援。所有的Linux網路驅動程式遵循通用的介面。設計時採用的是面向物件的方法。一個設備就...初始化程式完成硬體的初...

5

MarkS Note: March 2011

http://mark-shih.blogspot.com/2011_03_01_archive.html

Tuesday, March 22, 2011. 轉：http:/ technet.microsoft.com/zh-tw/library/cc738412%28WS.10%29.aspx. Updated: January 21, 2005. Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2. Note the use of spaces to pad the computer name. Before you can establish a file and print sharing connection, a TCP connection must be created. In order for a TCP connection to be established, the NetBIOS name "CORPSERVER [20]" must be resolved to an IP address. B-nod...

UPGRADE TO PREMIUM TO VIEW 11 MORE

TOTAL PAGES IN THIS WEBSITE

16

SOCIAL ENGAGEMENT

rpjday

OTHER SITES

mark-shepherd.net

Mark Shepherd

Mark Shepherd, a financial professional with nearly two decades of experience, has served as the Senior Vice President of Investments for UBS Financial Services in Fresno, California. Since 2008. In this position, Shepherd collaborates with individual investors to map out an all-inclusive financial strategy that includes prudent planning, portfolio management, and retirement modeling. He also works with small- to mid-sized businesses to develop their retirement plans and investment policies.

mark-sheridan.blogspot.com

Mark Sheridan

Team training in 1993, what a flight this was, as you are about to discover we were nearly sent back to the UK before we had even put our feet on Cypriot soil. The whole team arrived at Heathrow for a BA flight to Cyprus for a winter training trip at Kingsfield Airstrip. To have a drink but don't kick the arse out of it and 3hrs to wait before boarding was pointless, anyway the word went around to screw the nut.yeah right. We did a lot of Hospital and School demo's to get back in the good books, which wo...

mark-sheridan.com

HOME - Mark Sheridan Image Bank

HOME - Mark Sheridan Image Bank. New Products for 2017. You are viewing the text version of this site. To view the full version please install the Adobe Flash Player and ensure your web browser has JavaScript enabled. You need Flash to use this feature.

mark-sherrill.com

° motionpxl °

mark-shields.com

Freezone

mark-shih.blogspot.com

MarkS Note

Wednesday, October 24, 2012. 話說,個人覺得"Data alignment"的部份自己略有小著墨,但這兩三天卻被有關Data alignment的給弄掛了狀況是這樣的, 為何傳遞的封包大小計算經sizeof(X)應該為58,但卻會大於我自己認為的大小？經過網路上搜尋後才意識到, 對於32bit(4 Bytes)的CPU在擷取資料時會為了效率問題而執行"Data Alignment的動作, 所以儲存的資料皆為 4 Bytes的倍數為主.下列即為人家所探討的部份. (特別是下列Ex3 Ex5的解釋, 我覺得非常有意思). Http:/ kf99916cs.blogspot.tw/2012/10/data-structure-alignment.html. Http:/ kezeodsnx.pixnet.net/blog/post/27585076-data-structure%E7%9A%84%E5%B0%8D%E9%BD%8A%28alignment%29. Data Structure Alignment 究竟是何物？ Ex 1: 使用系統預設的alignment下為4B...

mark-shiloh.blogspot.com

Every day stuff

Discuss Christian doctrines that affect everyday life. Saturday, August 4, 2012. You didn't build that". Is their no responsibility there when things in civil society go to pot? The borrower is the lenders slave". Remember that proverb? Of course it's always easier to blame someone else and demand that they change so we can continue in our own sinful dysfunctional ways. My name is mark breese. Tuesday, June 5, 2012. My name is mark breese. Monday, January 9, 2012. Christianity is often presented as a rel...

mark-shoes.com

Domena mark-shoes.com jest utrzymywana na serwerach nazwa.pl

Domena jest utrzymywana na serwerach nazwa.pl. Na naszych stronach internetowych stosujemy pliki cookies. Korzystając z naszych serwisów internetowych bez zmiany ustawień przeglądarki wyrażasz zgodę na stosowanie plików cookies zgodnie z Polityką Prywatności. Akceptuję, nie pokazuj więcej.

mark-shop.jp

マグネットシートの印刷加工販売専門店

ＡＭ9 30 ＰＭ6 30. 日祝祭日ＧＷお盆. Ｅ-ｍａｉｌ markshop@palec.co.jp. もちろん社名などを塗装印刷した社用車、看板、扉、壁、車などマグネット磁石が貼りつく所なら社名、キャンペーン、期間限定のお知らせ等を印刷したマグネットシートを貼って告知することができます。認定を受けた自動車運転代行業者は、随伴用自動車お客さんの車に随伴する業者の車の両側面に随伴用自動車である旨の標示をしなければなりません。営業日月曜日土曜日ＡＭ9 30 ＰＭ6 30 土曜日ＰＭ1 30迄. 定休日日祝祭日ＧＷお盆年末年始. Ｅ-ｍａｉｌ markshop@palec.co.jp.

mark-shu.blogspot.com

The Evolution of Technology

mark-shutterbug.livejournal.com

mark_shutterbug

You are viewing the most recent 20 entries. August 14th, 2009. For you sci fi fans. I think a few of you out there might find this interesting:. Http:/ www.whereiwrite.org/index.ph. It's a photo project of portraits of fantasy and sci fi authors in their writing spaces. August 12th, 2009. Ear worm del giorno. What happens when a show queen goes to see. Titian, Tintoretto, Veronese. From A Little Night Music:. At the palace of the Duke of Ferrara,. Who was prematurely deaf but a dear,. Plus a tiny Titian.