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author | Steven Rostedt (Red Hat) <rostedt@goodmis.org> | 2015-07-16 21:58:52 -0400 |
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committer | Steven Rostedt <rostedt@goodmis.org> | 2015-07-20 22:30:52 -0400 |
commit | 82c355e81afbf16bc1ab379899a79eb66e2b7504 (patch) | |
tree | dbee4e29dbf6eee3ee87f1e0feec4181158d1ede /kernel/trace | |
parent | 8e436ca042d904533a1e14fdc85f0facdfca752f (diff) | |
download | op-kernel-dev-82c355e81afbf16bc1ab379899a79eb66e2b7504.zip op-kernel-dev-82c355e81afbf16bc1ab379899a79eb66e2b7504.tar.gz |
ftrace: Fix function_graph duration spacing with 7-digits
Jungseok Lee noticed the following:
Currently, row's width of 7-digit duration numbers not aligned with
other cases like the following example.
3) $ 3999884 us | }
3) | finish_task_switch() {
3) 0.365 us | _raw_spin_unlock_irq();
3) 3.333 us | }
3) $ 3999976 us | }
3) $ 3999979 us | } /* schedule */
As adding a single white space in case of 7-digit numbers, the format
could be unified easily as follows.
3) $ 2237472 us | }
3) | finish_task_switch() {
3) 0.364 us | _raw_spin_unlock_irq();
3) 3.125 us | }
3) $ 2237556 us | }
3) $ 2237559 us | } /* schedule */
Instead of making a special case for 7-digit numbers, the logic
of the len and the space loop is slightly modified to make the
two cases have the same format.
Link: http://lkml.kernel.org/r/1436626300-1679-2-git-send-email-jungseoklee85@gmail.com
Reported-by: Jungseok Lee <jungseoklee85@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace')
-rw-r--r-- | kernel/trace/trace_functions_graph.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/trace/trace_functions_graph.c b/kernel/trace/trace_functions_graph.c index 8968bf7..ca98445 100644 --- a/kernel/trace/trace_functions_graph.c +++ b/kernel/trace/trace_functions_graph.c @@ -715,13 +715,13 @@ trace_print_graph_duration(unsigned long long duration, struct trace_seq *s) snprintf(nsecs_str, slen, "%03lu", nsecs_rem); trace_seq_printf(s, ".%s", nsecs_str); - len += strlen(nsecs_str); + len += strlen(nsecs_str) + 1; } trace_seq_puts(s, " us "); /* Print remaining spaces to fit the row's width */ - for (i = len; i < 7; i++) + for (i = len; i < 8; i++) trace_seq_putc(s, ' '); } |