To identify which java thread was hogging the cpu on linux I used to have to convert the lightweight thread id from a ps command (ps -eLo pid,ppid,tid,pcpu,comm | grep <PID>) to a hex value, take a thread dump and find the nid with the same hex value. I tried that recently on Enterprise Linux Enterprise Linux Server release 5.2 and SUSE Linux Enterprise Server 10 (x86_64) and the tid from the ps output and the tid in the thread dump were the same decimal value and the nid value was missing. Can anyone tell me when this changed e.g. kernel version?
I used the below script to Sum up a field in a file based on some unique values. But the problem is when it is summing up the units, it is truncating to 2 decimals and not 6 decimals as in the input file (Input file has the units with up to 6 Decimals – Sample data below, when the units in the 2... (4 Replies)
Hi ,
seq can be 0...128
int windex = seq / 8;
int bindex = seq % 8;
unsigned char bitvalue = '\x01' << (7-bindex) ;
bpv.bitmapvalue = bitvalue;
This is the part of a program to convert decimal to bitmap value of hexadecimal.
I want this to change to convert only to... (1 Reply)
Hi,
I want to convert two hexadecimal numbers to decimal using unix command line.
1cce446295197a9d6352f9f223a9b698
fc8f99ac06e88c4faf669cf366f60d
I tried using
`echo "ibase=16; $no |bc`
printf '%x\n' "1cce446295197a9d6352f9f223a9b698"
but it doesn't work for such big number it... (4 Replies)
I am trying to install VirtualBox on RHEL 5 but I need the 32 bit version for 32 bit Windows. When I run yum I get the following:
sudo yum localinstall /auto/spvtg-it/spvss-migration/Software/VirtualBox-4.3-4.3.2_90405_el6-1.i686.rpm
Loaded plugins: fastestmirror
Setting up Local Package... (13 Replies)
Hello,
This is a programming question as well as a suse question, so let me know if you think I should post this in programming.
I have an application that I compiled under opensuse 12.2 using g77-3.3/g++3.3. The program compiles and runs just fine. I gave the application to a colleague who... (2 Replies)
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
Design an algorithm that accepts an input a decimal number and converts it into BCD (Binary... (2 Replies)
Anybody please help me...
Design an algorithm that accepts an input a decimal number and converts it into BCD (Binary Coded Decimal) representation. Also, draw its Flow Chart.
This is a unix qn...
plz post algorithm for that :confused: (1 Reply)
Hi everyone,
I am new here in www.unix.com, i found this site because I am looking for an answer to this problem of mine.
I need to know a UNIX command to display an inode's thread id and process id.
Hope someone can help me on this.
Thanks :D (8 Replies)
KILL(1) User Commands KILL(1)NAME
kill - terminate a process
SYNOPSIS
kill [-s signal|-p] [-q sigval] [-a] [--] pid...
kill -l [signal]
DESCRIPTION
The command kill sends the specified signal to the specified process or process group. If no signal is specified, the TERM signal is sent.
The TERM signal will kill processes which do not catch this signal. For other processes, it may be necessary to use the KILL (9) signal,
since this signal cannot be caught.
Most modern shells have a builtin kill function, with a usage rather similar to that of the command described here. The '-a' and '-p'
options, and the possibility to specify processes by command name are a local extension.
If sig is 0, then no signal is sent, but error checking is still performed.
OPTIONS
pid... Specify the list of processes that kill should signal. Each pid can be one of five things:
n where n is larger than 0. The process with pid n will be signaled.
0 All processes in the current process group are signaled.
-1 All processes with pid larger than 1 will be signaled.
-n where n is larger than 1. All processes in process group n are signaled. When an argument of the form '-n' is given, and it
is meant to denote a process group, either the signal must be specified first, or the argument must be preceded by a '--'
option, otherwise it will be taken as the signal to send.
commandname
All processes invoked using that name will be signaled.
-s, --signal signal
Specify the signal to send. The signal may be given as a signal name or number.
-l, --list [signal]
Print a list of signal names, or convert signal given as argument to a name. The signals are found in /usr/include/linux/signal.h
-L, --table
Similar to -l, but will print signal names and their corresponding numbers.
-a, --all
Do not restrict the commandname-to-pid conversion to processes with the same uid as the present process.
-p, --pid
Specify that kill should only print the process id (pid) of the named processes, and not send any signals.
-q, --queue sigval
Use sigqueue(2) rather than kill(2) and the sigval argument is used to specify an integer to be sent with the signal. If the
receiving process has installed a handler for this signal using the SA_SIGINFO flag to sigaction(2), then it can obtain this data
via the si_value field of the siginfo_t structure.
NOTES
It is not possible to send a signal to explicitly selected thread in a multithreaded process by kill(2) syscall. If kill(2) is used to
send a signal to a thread group, then kernel selects arbitrary member of the thread group that has not blocked the signal. For more
details see clone(2) CLONE_THREAD description.
The command kill(1) as well as syscall kill(2) accepts TID (thread ID, see gettid(2)) as argument. In this case the kill behavior is not
changed and the signal is also delivered to the thread group rather than to the specified thread.
SEE ALSO bash(1), tcsh(1), kill(2), sigvec(2), signal(7)AUTHOR
Taken from BSD 4.4. The ability to translate process names to process ids was added by Salvatore Valente <svalente@mit.edu>.
AVAILABILITY
The kill command is part of the util-linux package and is available from Linux Kernel Archive <ftp://ftp.kernel.org/pub/linux/utils/util-
linux/>.
util-linux March 2013 KILL(1)