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|
#!/bin/bash
do_sort=0
sort_ave=0
sort_cnt=0
sort_min=0
sort_max=0
sort_tot=0
show_all=1
verbose=""
function usage {
echo "Usage: nfsdcalltimes [-Aachnmtv]"
echo " -A - Do all possible sorting"
echo " -a - sort by Ave ns"
echo " -c - sort by Count"
echo " -n - sort by Min ns"
echo " -m - sort by Max ns"
echo " -t - sort by Total ns"
echo " -v - turn on SystemTap debugging"
echo " -h - print this help text"
}
while getopts Aachnmtv option; do
case $option in
A) sort_ave=1; sort_cnt=1; sort_min=1;
sort_max=1; sort_tot=1; do_sort=1;;
a) sort_ave=1; do_sort=1;;
c) sort_cnt=1; do_sort=1 ;;
n) sort_min=1; do_sort=1 ;;
m) sort_max=1; do_sort=1 ;;
t) sort_tot=1; do_sort=1 ;;
v) verbose="-v "$verbose ;;
h|?|*) usage
exit 1;;
esac
done
if [ $do_sort -eq 1 ]; then
show_all=0
fi
echo "Creating and building SystemTap module..."
stap "$verbose" -e '
global timebyfunc, top
global start
probe begin {
printf("Collecting nfsd data - type Ctrl-C to print output and exit...\n")
}
probe module("nfsd").function("*@fs/nfsd/*")
{
start[probefunc(), tid()] = gettimeofday_ns()
}
probe module("nfsd").function("*@fs/nfsd/*").return
{
if (!([probefunc(), tid()] in start)) next
delta = gettimeofday_ns() - start[probefunc(), tid()]
timebyfunc[probefunc()] <<< delta
delete start[probefunc(), tid()]
}
function print_header() {
printf("%-26s %10s %12s %12s %12s %12s\n",
"Call", "Count", "Total ns",
"Avg ns", "Min ns", "Max ns")
}
probe end {
if ('$sort_ave' != 0) {
printf("\nSorted nfsd data by Avg ns \n")
print_header()
foreach (call in timebyfunc)
top[call] = @avg(timebyfunc[call])
foreach (call in top- limit 20)
printf("%-26s %10d %12d %12d %12d %12d\n", call,
@count(timebyfunc[call]),
@sum(timebyfunc[call]),
@avg(timebyfunc[call]),
@min(timebyfunc[call]),
@max(timebyfunc[call]))
delete top
}
if ('$sort_cnt' != 0) {
printf("\nSorted nfsd data by Count\n")
print_header()
foreach (call in timebyfunc)
top[call] = @count(timebyfunc[call])
foreach (call in top- limit 20)
printf("%-26s %10d %12d %12d %12d %12d\n", call,
@count(timebyfunc[call]),
@sum(timebyfunc[call]),
@avg(timebyfunc[call]),
@min(timebyfunc[call]),
@max(timebyfunc[call]))
delete top
}
if ('$sort_tot' != 0) {
printf("\nSorted nfsd data by Total ns\n")
print_header()
foreach (call in timebyfunc)
top[call] = @sum(timebyfunc[call])
foreach (call in top- limit 20)
printf("%-26s %10d %12d %12d %12d %12d\n", call,
@count(timebyfunc[call]),
@sum(timebyfunc[call]),
@avg(timebyfunc[call]),
@min(timebyfunc[call]),
@max(timebyfunc[call]))
delete top
}
if ('$sort_min' != 0) {
printf("\nSorted nfsd data by Min ns\n")
print_header()
foreach (call in timebyfunc)
top[call] = @min(timebyfunc[call])
foreach (call in top- limit 20)
printf("%-26s %10d %12d %12d %12d %12d\n", call,
@count(timebyfunc[call]),
@sum(timebyfunc[call]),
@avg(timebyfunc[call]),
@min(timebyfunc[call]),
@max(timebyfunc[call]))
delete top
}
if ('$sort_max' != 0) {
printf("\nSorted nfsd data by Max ns\n")
print_header()
foreach (call in timebyfunc)
top[call] = @min(timebyfunc[call])
foreach (call in top- limit 20)
printf("%-26s %10d %12d %12d %12d %12d\n", call,
@count(timebyfunc[call]),
@sum(timebyfunc[call]),
@avg(timebyfunc[call]),
@min(timebyfunc[call]),
@max(timebyfunc[call]))
delete top
}
if ('$show_all' != 0) {
print_header()
foreach (call in timebyfunc)
printf("%-26s %10d %12d %12d %12d %12d\n", call,
@count(timebyfunc[call]),
@sum(timebyfunc[call]),
@avg(timebyfunc[call]),
@min(timebyfunc[call]),
@max(timebyfunc[call]))
}
delete timebyfunc
}'
|
