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#!/usr/sbin/dtrace -s
#
# Show the time taken for a query, including the time taken to
# sort the results using filesort
#pragma D option quiet
dtrace:::BEGIN
{
printf("%-2s %-10s %-10s %9s %18s %-s \n",
"St", "Who", "DB", "ConnID", "Dur microsec", "Query");
}
mysql*:::query-start
{
self->query = copyinstr(arg0);
self->who = strjoin(copyinstr(arg3),strjoin("@",copyinstr(arg4)));
self->db = copyinstr(arg2);
self->connid = arg1;
self->querystart = timestamp;
self->filesort = 0;
self->fsdb = "";
self->fstable = "";
}
mysql*:::filesort-start
{
self->filesort = timestamp;
self->fsdb = copyinstr(arg0);
self->fstable = copyinstr(arg1);
}
mysql*:::filesort-done
{
this->elapsed = (timestamp - self->filesort) /1000;
printf("%2d %-10s %-10s %9d %18d Filesort on %s\n",
arg0, self->who, self->fsdb,
self->connid, this->elapsed, self->fstable);
}
mysql*:::query-done
{
this->elapsed = (timestamp - self->querystart) /1000;
printf("%2d %-10s %-10s %9d %18d %s\n",
arg0, self->who, self->db,
self->connid, this->elapsed, self->query);
}
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