| #!/bin/sh |
| |
| # |
| # Exercises code in mincore.c mm/ |
| # |
| . ./hw_vars |
| |
| #check for max shared memory allowed on system |
| MAX_SHARE_SEGMENT=$(cat /proc/sys/kernel/shmmax) |
| |
| #segment size being requested |
| SHM_SIZE=$((mem / nr_task)) |
| #echo "shared segment size being requested $SHM_SIZE" |
| |
| #echo "Max shared segment allocatable is set to $MAX_SHARE_SEGMENT" |
| |
| #check to see if the request can be satisfied else exit with error |
| if [ $MAX_SHARE_SEGMENT -lt $SHM_SIZE ] |
| then |
| echo "Cannot allocate more shared memory segment than $MAX_SHARE_SEGMENT" |
| echo "exiting now..." |
| exit 1 #exit on failure |
| fi |
| |
| for i in `seq nr_task` |
| do |
| create_sparse_file $SPARSE_FILE-$i $SHM_SIZE |
| $USEMEM -t $nr_task -f $SPARSE_FILE -N --prealloc --readonly --random $SHM_SIZE & |
| done |
| wait |
| |
| rm $SPARSE_FILE-* |
