Login or Register to Ask a Question and Join Our Community


Programming

Pls give me some advice

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Programming Pls give me some advice
# 1  
Old 08-31-2006
Pls give me some advice
hi everyone
i have a problem in design as follows:

there is a structured file ,for example ,
field 1, field 2 .......
--------------
--------------
i read it into my memory ,there are some change in the memory
maybe add some record or change one field in an existing record.
i am going to check the status the memory every minute.
if it changed, in order to avoiding the system crash, i need to rewrite the memory into the file,

the problem is i think this method may reduce the performance of system because writing to file so frequently.
pls give me some advice,thanks.
# 2  
Old 09-01-2006
Are you working with mmap?
Login or Register to Ask a Question

Previous Thread | Next Thread

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Need Advice

Guys, Can you tell me what value would additional knowledge of PERL and CGI scripting will add to my skill set of UNIX shell scripting and ORACLE PL/SQL? I understand that PERL is a good tool for text processing. (1 Reply)
Discussion started by: yabhi_22
1 Replies

2. UNIX for Advanced & Expert Users

About to give up on XEmacs 21.5.29

Folks, I am hoping someone out there can help me. I have been writing code for in-excess of 10 years. Throughout all this time I have used Xemacs. I have picked up bits of customizations here and there over the years, but would not profess to be anything of an expert in Lisp (or have a heavily... (3 Replies)
Discussion started by: petermc
3 Replies

3. Shell Programming and Scripting

Error Handling -pls advice

Dear friends, I am using the below command in my unix script ----------------------------------------------- File_Name=`ls $CTRY*$DATE_SUFFIX*zip` --> Command-1 ..... if then unzip -a $File_Name -d $CTRY_DIR/$CTRY else echo "File for $CTRY dated $DATE_SUFFIX does not exist... (2 Replies)
Discussion started by: sureshg_sampat
2 Replies

4. Red Hat

Any advice would help

Hi everyone. I must admit up front that I am not very strong when it comes to Linux. I am actually a Windows guy, but don't let that count against me. :) I work for a very small company so we do not have a Server/Linux Admin on staff. Most of our needs have been handled by our WebHost. We have... (2 Replies)
Discussion started by: liquidstyleb
2 Replies

5. UNIX for Dummies Questions & Answers

need advice

i am currently running windows vista home premium, i want to install unix because i just started a computer programing course, i am just wondering if i install unix will i still have vista?? how does it work? will i get a choice of which os to run on system startup?? (1 Reply)
Discussion started by: naner9
1 Replies

6. Shell Programming and Scripting

looking for advice...

Hi. First of all, Im an msoft guy, and when it comes to linux/unix, I'm retarded. Here is what I'm trying to do. I want to start I want to automatically connect to a remote server. Then I need it to login(https) -insert the licensce in the box(vi) -based on that licensce, the... (1 Reply)
Discussion started by: bravo24601
1 Replies

7. Shell Programming and Scripting

Please give your inputs !!!!

I am trying to extract two fields from the output of ifconfig command on one of my sun server . The output looks like : root@e08k18:/tmp/test# ifconfig -a lo0: flags=1000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4> mtu 8232 index 1 inet 127.0.0.1 netmask ff000000 ce0:... (9 Replies)
Discussion started by: kpatel786
9 Replies

8. Shell Programming and Scripting

if i give this command what would be the value...

if i give dir=/tmp/${0##*/} what would b the value stored in dir ..i'm more concerned about the 0##*/ part.. (1 Reply)
Discussion started by: suri
1 Replies

9. UNIX Desktop Questions & Answers

Looking for some advice

I am looking for some advice on wether to use unix or red hat linux? I have played with most windows OS and Mac OS up to in and including OS X. any and all advice would be appreciated (4 Replies)
Discussion started by: justawind
4 Replies
Login or Register to Ask a Question