calculating in MB

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# 1  
Old 09-13-2009
calculating in MB

hi all,
have got a ksh script which tries to monitor memory usage of app servers. i do a
 ps -0 rss -p <PID>

to get the memory size in KB but when i divide by 1024 to convert to MB i dont know how to round it up ??

thanks in advance.
# 2  
Old 09-13-2009
add 512 to the KB size then divide by 1024....
# 3  
Old 09-13-2009
i get a value of '1274496' from the
 ps -o rss -p <pid>

command and when i add 512 to this and divide by 1024 it comes to '1245.125'

is there a function in ksh to round this up so the value returned is '1245' ??

# 4  
Old 09-14-2009
use expr to add 512 and again to divide by 1024

X=`expr val_in_kilobytes + 512`
MB=`expr $X / 1024`

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