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Limit memory usage for a single Linux process with only a function?

1

1

This is a shell script with a function timeout() to limit the CPU time usage for a single process. Is it possible to limit memory usage for a single Linux process with a similar function?

#!/bin/bash

################################################################################
# Executes command with a timeout
# Params:
# $1 timeout in seconds
# $2 command
# Returns 1 if timed out 0 otherwise
timeout() 

 time=$1

 # start the command in a subshell to avoid problem with pipes
 # (spawn accepts one command)
 command="/bin/sh -c "$2""

 expect -c "set echo "-noecho"; set timeout $time; spawn -noecho $command; expect timeout exit 1 eof exit 0 "

 if [ $? = 1 ] ; then
 echo "Timeout after $time seconds"
 fi



timeout 100 "./program.exe"

done
exit 0

I've read a similar question Limit memory usage for a single Linux process, all the answers below rely on extra tools or configurations. I tried some but failed (for example, the accepted answer https://unix.stackexchange.com/a/44988/302092 recommends a tool, but I got an unexpected output when I run the example given by its Github page).

ulimit works but the I needs reset the ulimit to unlimited after the last process done. So I wonder is there any easier way (maybe with only a function) to achieve this currently?

linux memory ulimit

share|improve this question

asked 2 days ago

siriussirius

64

New contributor

sirius is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment | 

1

1

This is a shell script with a function timeout() to limit the CPU time usage for a single process. Is it possible to limit memory usage for a single Linux process with a similar function?

#!/bin/bash

################################################################################
# Executes command with a timeout
# Params:
# $1 timeout in seconds
# $2 command
# Returns 1 if timed out 0 otherwise
timeout() 

 time=$1

 # start the command in a subshell to avoid problem with pipes
 # (spawn accepts one command)
 command="/bin/sh -c "$2""

 expect -c "set echo "-noecho"; set timeout $time; spawn -noecho $command; expect timeout exit 1 eof exit 0 "

 if [ $? = 1 ] ; then
 echo "Timeout after $time seconds"
 fi



timeout 100 "./program.exe"

done
exit 0

I've read a similar question Limit memory usage for a single Linux process, all the answers below rely on extra tools or configurations. I tried some but failed (for example, the accepted answer https://unix.stackexchange.com/a/44988/302092 recommends a tool, but I got an unexpected output when I run the example given by its Github page).

ulimit works but the I needs reset the ulimit to unlimited after the last process done. So I wonder is there any easier way (maybe with only a function) to achieve this currently?

linux memory ulimit

share|improve this question

asked 2 days ago

siriussirius

64

New contributor

sirius is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment | 

This is a shell script with a function timeout() to limit the CPU time usage for a single process. Is it possible to limit memory usage for a single Linux process with a similar function?

#!/bin/bash

################################################################################
# Executes command with a timeout
# Params:
# $1 timeout in seconds
# $2 command
# Returns 1 if timed out 0 otherwise
timeout() 

 time=$1

 # start the command in a subshell to avoid problem with pipes
 # (spawn accepts one command)
 command="/bin/sh -c "$2""

 expect -c "set echo "-noecho"; set timeout $time; spawn -noecho $command; expect timeout exit 1 eof exit 0 "

 if [ $? = 1 ] ; then
 echo "Timeout after $time seconds"
 fi



timeout 100 "./program.exe"

done
exit 0

I've read a similar question Limit memory usage for a single Linux process, all the answers below rely on extra tools or configurations. I tried some but failed (for example, the accepted answer https://unix.stackexchange.com/a/44988/302092 recommends a tool, but I got an unexpected output when I run the example given by its Github page).

ulimit works but the I needs reset the ulimit to unlimited after the last process done. So I wonder is there any easier way (maybe with only a function) to achieve this currently?

linux memory ulimit

share|improve this question

asked 2 days ago

siriussirius

64

New contributor

sirius is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

#!/bin/bash

################################################################################
# Executes command with a timeout
# Params:
# $1 timeout in seconds
# $2 command
# Returns 1 if timed out 0 otherwise
timeout() 

 time=$1

 # start the command in a subshell to avoid problem with pipes
 # (spawn accepts one command)
 command="/bin/sh -c "$2""

 expect -c "set echo "-noecho"; set timeout $time; spawn -noecho $command; expect timeout exit 1 eof exit 0 "

 if [ $? = 1 ] ; then
 echo "Timeout after $time seconds"
 fi



timeout 100 "./program.exe"

done
exit 0

share|improve this question

asked 2 days ago

siriussirius

64

New contributor

sirius is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this question

asked 2 days ago

siriussirius

64

New contributor

sirius is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 2 days ago

siriussirius

64

New contributor

sirius is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 2 days ago

siriussirius

64