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| -rwxr-xr-x | common/scripts/odp-on-isolated-cpu.sh | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/common/scripts/odp-on-isolated-cpu.sh b/common/scripts/odp-on-isolated-cpu.sh new file mode 100755 index 0000000..c0b0d11 --- /dev/null +++ b/common/scripts/odp-on-isolated-cpu.sh @@ -0,0 +1,112 @@ +#!/bin/bash +# +# Author: Santosh Shukla <santosh.shukla@linaro.org> +# +# This script uses is-cpu-isolated.sh script (superset script) to isolate +# a cpu or set of cpu (comma separated cpus list passed as arguement $1 to +# this script, Migrate possible kernel background tasks to boot core or other +# non-isolated cpus) +# +# We record odp app isolation time using is-cpu-isolated.sh script "duration" arguement. +# +# SCRIPT ARGUMENTS +# $1: isolate cpu list comma separated +# $2: Full odp_ command format look like +# example +#./common/scripts/odp-on-isolated-cpu.sh 1,2 "/home/santosh/my_project/odp/example/l2fwd/odp_l2fwd -i 0,2 -m 0 -c 2" & +#./common/scripts/odp-on-isolated-cpu.sh 1,2 "/usr/local/bin/odp_isolation -l 1,2" +# +# note : it is assumed that odp_xxx bin copied to filesystem location /usr/local/bin +# + +# Script arguments +ISOL_CPUS=1 # comma separated isolated cpulist + +# Global Var +ODP_APP=odp_isolation # odp test binary run default odp_isolation + +# Run odp thread on dplane core +# argument - $1=odp thread_pid +# $2=isol core +run_odp_app() { + + echo " cpu no "$2" and thd pid : "$1" " + cpu_mask=$2 + + # Move shell to isolated CPU + echo $1 > /dev/cpuset/dplane/cpu$cpu_mask/tasks +} + + +# Create odp setup +odp_create_setup() { + # parse odp_ string and store them in variable + parsed=$(echo $ODP_APP | sed 's/*.,//g' | cut -d " " -f 2-) + + # get actual binary name out from big parsed string + ODP_APP=`echo $parsed | cut -f1 -d " "` + + # Isolate cpu + $(pwd)/common/scripts/is-cpu-isolated.sh -c 1,2 -t $ODP_APP -f "isolate" + + #echo " "$ODP_APP" :: "$ISOL_CPUS" " + + # Run odp application + $parsed & + + + # retreive main odp process list in proc_pid var + proc_pid=$! + + echo "$poc_pid" + + # move main odp process to boot core + taskset -p 1 $proc_pid + + # list odp thread pid in var thd_pid_list + thd_pid_list=$(ls /proc/$proc_pid/task | grep -v $proc_pid) + + echo $thd_pid_list + + # fill odp threads pid into arr[] + k=0 + for i in `echo $thd_pid_list | sed 's/ / /g'`; do + arr[k]=$i; + let k++ + done + + k=0 + for i in `echo $ISOL_CPUS | sed 's/,/ /g'`; do + run_odp_app ${arr[$k]} $i + let k++ + done + + echo " Data plane application running duration " + $(pwd)/common/scripts/is-cpu-isolated.sh -c 1,2 -t $ODP_APP -f "duration" + + echo " Data plane application clear cpuset " + $(pwd)/common/scripts/is-cpu-isolated.sh -c 1,2 -t $ODP_APP -f "clear" +} + +# Parse argument +[ $1 ] && ISOL_CPUS=$1 + +# odp_* binary complete comand +ODP_APP=$@ + +## Check validity of arguments +USAGE="Usage: $0 <CPUs to isolate (default 1), comma separated list> <odp_* binary full command in double quote>" + +if [ "$1" = "-h" -o "$1" = "--help" ]; then + echo $USAGE >&2 + exit 0 +fi + +if [ $# -eq 0 ]; then + echo $USAGE >&2 + exit 0 +fi + +odp_create_setup + + |