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ftrace: make output nicely spaced for up to 999 cpus 

Currently some of the ftrace output goes skewiff if you have more
than 9 cpus, and some if you have more than 99.

Twiddle with the headers and format strings to make up to 999 cpus
display without causing spacing problems.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Michael Ellerman 2008-08-20 16:36:11 -07:00 коммит произвёл Ingo Molnar
Родитель 2ff01c6a17
Коммит a6168353d1
1 изменённых файлов: 14 добавлений и 14 удалений
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28
kernel/trace/trace.c
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@ -1409,21 +1409,21 @@ seq_print_ip_sym(struct trace_seq *s, unsigned long ip, unsigned long sym_flags)
static void print_lat_help_header(struct seq_file *m)
{
seq_puts(m, "# _------=> CPU# \n");
seq_puts(m, "# / _-----=> irqs-off \n");
seq_puts(m, "# | / _----=> need-resched \n");
seq_puts(m, "# || / _---=> hardirq/softirq \n");
seq_puts(m, "# ||| / _--=> preempt-depth \n");
seq_puts(m, "# |||| / \n");
seq_puts(m, "# ||||| delay \n");
seq_puts(m, "# cmd pid ||||| time | caller \n");
seq_puts(m, "# \\ / ||||| \\ | / \n");
seq_puts(m, "# _------=> CPU# \n");
seq_puts(m, "# / _-----=> irqs-off \n");
seq_puts(m, "# | / _----=> need-resched \n");
seq_puts(m, "# || / _---=> hardirq/softirq \n");
seq_puts(m, "# ||| / _--=> preempt-depth \n");
seq_puts(m, "# |||| / \n");
seq_puts(m, "# ||||| delay \n");
seq_puts(m, "# cmd pid ||||| time | caller \n");
seq_puts(m, "# \\ / ||||| \\ | / \n");
}
static void print_func_help_header(struct seq_file *m)
{
seq_puts(m, "# TASK-PID CPU# TIMESTAMP FUNCTION\n");
seq_puts(m, "# | | | | |\n");
seq_puts(m, "# TASK-PID CPU# TIMESTAMP FUNCTION\n");
seq_puts(m, "# | | | | |\n");
}
@ -1508,7 +1508,7 @@ lat_print_generic(struct trace_seq *s, struct trace_entry *entry, int cpu)
comm = trace_find_cmdline(field->pid);
trace_seq_printf(s, "%8.8s-%-5d ", comm, field->pid);
trace_seq_printf(s, "%d", cpu);
trace_seq_printf(s, "%3d", cpu);
trace_seq_printf(s, "%c%c",
(field->flags & TRACE_FLAG_IRQS_OFF) ? 'd' : '.',
((field->flags & TRACE_FLAG_NEED_RESCHED) ? 'N' : '.'));
@ -1598,7 +1598,7 @@ print_lat_fmt(struct trace_iterator *iter, unsigned int trace_idx, int cpu)
if (verbose) {
comm = trace_find_cmdline(field->pid);
trace_seq_printf(s, "%16s %5d %d %d %08x %08x [%08lx]"
trace_seq_printf(s, "%16s %5d %3d %d %08x %08x [%08lx]"
" %ld.%03ldms (+%ld.%03ldms): ",
comm,
field->pid, cpu, field->flags,
@ -1694,7 +1694,7 @@ static int print_trace_fmt(struct trace_iterator *iter)
ret = trace_seq_printf(s, "%16s-%-5d ", comm, field->pid);
if (!ret)
return 0;
ret = trace_seq_printf(s, "[%02d] ", iter->cpu);
ret = trace_seq_printf(s, "[%03d] ", iter->cpu);
if (!ret)
return 0;
ret = trace_seq_printf(s, "%5lu.%06lu: ", secs, usec_rem);