Messages in this thread | | | From | Namhyung Kim <> | Date | Thu, 1 Jun 2023 09:14:50 -0700 | Subject | Re: [PATCH] perf script: Increase PID/TID width for output |
| |
Hi Adrian,
On Wed, May 31, 2023 at 9:54 PM Adrian Hunter <adrian.hunter@intel.com> wrote: > > On 31/05/23 23:32, Namhyung Kim wrote: > > On large systems, it's common that PID/TID is bigger than 5-digit and it > > makes the output unaligned. Let's increase the width to 7. > > Might be worth noting that currently the biggest PID_MAX_LIMIT > is 2^22 so pids don't get bigger than 7 digits presently.
Nice, will add that.
> > > > > Before: > > > > $ perf script > > ... > > swapper 0 [006] 1540823.803935: 1369324 cycles:P: ffffffff9c755588 ktime_get+0x18 ([kernel.kallsyms]) > > gvfsd-dnssd 95114 [004] 1540823.804164: 1643871 cycles:P: ffffffff9cfdca5c __get_user_8+0x1c ([kernel.kallsyms]) > > perf-exec 1558582 [000] 1540823.804209: 1018714 cycles:P: ffffffff9c924ab9 __slab_free+0x9 ([kernel.kallsyms]) > > nmcli 1558589 [007] 1540823.804384: 1859212 cycles:P: 7f70537a8ad8 __strchrnul_evex+0x18 (/usr/lib/x86_64-linux-gnu/libc.so.6> > > sleep 1558582 [000] 1540823.804456: 987425 cycles:P: 7fd35bb27b30 _dl_init+0x0 (/usr/lib/x86_64-linux-gnu/ld-linux-x86-64.so.2> > > dbus-daemon 3043 [003] 1540823.804575: 1564465 cycles:P: ffffffff9cb2bb70 llist_add_batch+0x0 ([kernel.kallsyms]) > > gdbus 1558592 [001] 1540823.804766: 1315219 cycles:P: ffffffff9c797b2e audit_filter_syscall+0x9e ([kernel.kallsyms]) > > NetworkManager 3452 [005] 1540823.805301: 1558782 cycles:P: 7fa957737748 g_bit_lock+0x58 (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0.7400.5> > > > > After: > > > > $ perf script > > ... > > swapper 0 [006] 1540823.803935: 1369324 cycles:P: ffffffff9c755588 ktime_get+0x18 ([kernel.kallsyms]) > > gvfsd-dnssd 95114 [004] 1540823.804164: 1643871 cycles:P: ffffffff9cfdca5c __get_user_8+0x1c ([kernel.kallsyms]) > > perf-exec 1558582 [000] 1540823.804209: 1018714 cycles:P: ffffffff9c924ab9 __slab_free+0x9 ([kernel.kallsyms]) > > nmcli 1558589 [007] 1540823.804384: 1859212 cycles:P: 7f70537a8ad8 __strchrnul_evex+0x18 (/usr/lib/x86_64-linux-gnu/libc.so.6> > > sleep 1558582 [000] 1540823.804456: 987425 cycles:P: 7fd35bb27b30 _dl_init+0x0 (/usr/lib/x86_64-linux-gnu/ld-linux-x86-64.so.2> > > dbus-daemon 3043 [003] 1540823.804575: 1564465 cycles:P: ffffffff9cb2bb70 llist_add_batch+0x0 ([kernel.kallsyms]) > > gdbus 1558592 [001] 1540823.804766: 1315219 cycles:P: ffffffff9c797b2e audit_filter_syscall+0x9e ([kernel.kallsyms]) > > NetworkManager 3452 [005] 1540823.805301: 1558782 cycles:P: 7fa957737748 g_bit_lock+0x58 (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0.7400.5> > > > > Signed-off-by: Namhyung Kim <namhyung@kernel.org> > > Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Thanks for your review! Namhyung
> > > --- > > tools/perf/builtin-script.c | 6 +++--- > > 1 file changed, 3 insertions(+), 3 deletions(-) > > > > diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c > > index 029d5a597233..70549fc93b12 100644 > > --- a/tools/perf/builtin-script.c > > +++ b/tools/perf/builtin-script.c > > @@ -801,11 +801,11 @@ static int perf_sample__fprintf_start(struct perf_script *script, > > } > > > > if (PRINT_FIELD(PID) && PRINT_FIELD(TID)) > > - printed += fprintf(fp, "%5d/%-5d ", sample->pid, sample->tid); > > + printed += fprintf(fp, "%7d/%-7d ", sample->pid, sample->tid); > > else if (PRINT_FIELD(PID)) > > - printed += fprintf(fp, "%5d ", sample->pid); > > + printed += fprintf(fp, "%7d ", sample->pid); > > else if (PRINT_FIELD(TID)) > > - printed += fprintf(fp, "%5d ", sample->tid); > > + printed += fprintf(fp, "%7d ", sample->tid); > > > > if (PRINT_FIELD(CPU)) { > > if (latency_format) >
| |