On 02/09/2023 18:31, Mateusz Guzik wrote:
Looks like you have a lot of unrelated traffic in there.
Run this script:
#pragma D option dynvarsize=32m
profile:::profile-997
/execname == "find"/
{
@oncpu[stack(), "oncpu"] = count();
}
/*
* The p_flag & 0x4 test filters out kernel threads.
*/
sched:::off-cpu
/execname == "find"/
{
self->ts = timestamp;
}
sched:::on-cpu
/self->ts/
{
@offcpu[stack(30), "offcpu"] = sum(timestamp - self->ts);
self->ts = 0;
}
dtrace:::END
{
normalize(@offcpu, 1000000);
printa("%k\n%s\n%@d\n\n", @offcpu);
printa("%k\n%s\n%@d\n\n", @oncpu);
}
dtrace -s script.d -o out
# pwd
/home/grahamperrin/Documents/IT/BSD/FreeBSD/kernel-cpu
# ./2023-09-02-18-31.sh
./2023-09-02-18-31.sh: profile:::profile-997: not found
./2023-09-02-18-31.sh: /execname: not found
./2023-09-02-18-31.sh: 6: Syntax error: "(" unexpected (expecting "}")
# whoami
root
# echo $
$
# echo $0
sh
# echo $SHELL
/bin/csh
# exit
root@mowa219-gjp4-8570p-freebsd:/home/grahamperrin/Documents/IT/BSD/FreeBSD/kernel-cpu
#
