How to get microseconds of system time from Redhat Linux 4.0
Answers were Sorted based on User's Feedback
Answer / rajeev kumar verma
The systemcall "gettimeofday" can be used to get the time in microseconds. The call takes two arguments.
1- struct timeval
2- struct timezone ( for timezone information). you can have second argument null.
timeval structure has two fields:
tv_sec ( represents time in seconds)
tv_usec ( represents time in microseconds )
the code snapshot is :
////
struct timeval t_time;
gettimeofday(&t_time,NULL);
| Is This Answer Correct ? | 2 Yes | 0 No |
Answer / mahesh
what is difference between Big endian and Small Endian ????
| Is This Answer Correct ? | 0 Yes | 1 No |
what is sudo on linux?
linux system its not booting up its showing groub error what i need to do?
1.Diff between Active and passive FTP? 2.What is anacron? 3.Diff between yum update and yum install while doing for kernel? 4.root_squash and no_root_squash does what? 5.What are the commands will you execute to find a new hardware? 6.How will you find out a lun allocated from SAN? 7.What is the main diff in CaT5 and CAT6 cable, except the 1/100 and 1/1000? 8.What is stale NFS and How will you fix it? 9.What is kernel panic error? 10.How will you recover password and shadow file, in case both got deleted. Explain the steps? 11.Explain boot process 12.What is network bonding. Explain the steps? 13.What are the exit codes returned by FSCK? 14.What is LDOM? 15.Diff between block and character device?
what are the different ways the Linux can swich from User Space to Kernel Space & vice-versa ?
what is iptabe on redhat linux?
diff b/w spinlock, seamaphores and mutex and where to use it.
if root user forget the password how to change it?
how to configure ftp server on redhat linux?
what are different ways the context switch happens from user to kernel space or vice-versa ?
what is stored in /proc ? what is significance of /proc in linux ?
what is samba, what is configuration file, how it will work?
what is cups and how to configure?