rename st_trace -> st-trace-schedule

Let's use consistent tool names...

1 files changed, 105 insertions, 0 deletions

diff --git a/st-trace-schedule b/st-trace-schedule
new file mode 100755
index 0000000..680772e
--- /dev/null
+++ b/st-trace-schedule
@@ -0,0 +1,105 @@
+#!/bin/bash
+
+PATH_TO_SCRIPT=`dirname $0`
+function find_helper()
+{
+        IN_PATH=`which $1`
+        REL_TO_PATH="$PATH_TO_SCRIPT/$2"
+        if [ -z "$IN_PATH" ] && [ ! -z "$PATH_TO_SCRIPT" ] &&  [ -x "$PATH_TO_SCRIPT/$1" ]
+        then
+                echo "$PATH_TO_SCRIPT/$1"
+        elif [ -z "$IN_PATH" ] && [ ! -z "$PATH_TO_SCRIPT" ] &&  [ -x "$REL_TO_PATH/$1" ]
+        then
+            echo "$REL_TO_PATH/$1"
+        else
+                echo "$IN_PATH"
+        fi
+}
+
+function die()
+{
+        echo "Error: $*"
+        exit 1
+}
+
+
+[ -z "$FTCAT" ] && FTCAT=`find_helper ftcat ../ft_tools`
+[ -z "$FTCAT" ] && die "Can't find 'ftcat' utility."
+[ -z "$FTDEV" ] && FTDEV=/dev/litmus/sched_trace
+
+if [ "$1" == "-s" ]
+then
+  AUTO=1
+  shift
+fi
+
+PIDS=""
+
+# signal that we're done gathering data and clean up
+on_finish()
+{
+    echo "Ending Trace..."
+    kill $PIDS
+    wait $PIDS
+
+    exit 0
+}
+
+# register shutdown signal handler
+trap 'on_finish' SIGUSR1
+
+
+
+# Setup up sched_trace tracing.
+
+# works for sparc64 and Intel x86 if all CPUs are online
+NUM_CPUS=`egrep -c '^processor|online'   /proc/cpuinfo`
+
+# Trace ID Key:
+# 501 - sched_trace_task_name
+# 502 - sched_trace_task_param
+# 503 - sched_trace_task_release
+# 504 - sched_trace_task_switch_to
+# 505 - sched_trace_task_switch_away
+# 506 - sched_trace_task_completion
+# 507 - sched_trace_task_block
+# 508 - sched_trace_task_resume
+# 509 - sched_trace_action
+# 510 - sched_trace_sys_release
+ST_IDS="501 502 503 504 505 506 507 508 509 510"
+
+DIR=`mktemp -d` || die "mktemp failed"
+
+TAG=$1
+PIDS=""
+COUNT=0
+for x in `seq 0 $(($NUM_CPUS - 1))`
+do
+    TARGET="st-${TAG}_cpu=${x}.bin"
+    echo -n "CPU $x: "
+    $FTCAT -p "$DIR/cpu${x}.pid" "$FTDEV$x" $ST_IDS > "$TARGET"  &
+    PIDS="$PIDS $!"
+    echo $! "> $TARGET [$?]"
+    COUNT=$((COUNT + 1))
+done
+
+READY=`ls $DIR/*.pid | wc -l`
+while [[ $READY != $COUNT ]]
+do
+    sleep 0.5
+    READY=`ls $DIR/*.pid | wc -l`
+done
+
+rm $DIR/*.pid
+rmdir $DIR
+
+if [[ $AUTO != 1 ]]
+then
+    echo "Press Enter to end tracing..."
+    read
+    on_finish
+else
+    # wait for SIGUSR1 to terminate
+    echo "Waiting for SIGUSR1 to end tracing..."
+    wait $PIDS
+fi