Messages in this thread | | | Date | Fri, 10 Jul 2009 14:46:48 +0800 | From | Li Zefan <> | Subject | Re: [PATCH -tip -v11 11/11] tracing: Add kprobes event profiling interface |
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> +Event Profiling > +--------------- > + You can check the total number of probe hits and probe miss-hits via > +/sys/kernel/debug/tracing/kprobe_profile. > + The fist column is event name, the second is the number of probe hits,
s/fist/first
> +the third is the number of probe miss-hits. > + > + ... > +/* Probes profiling interfaces */ > +static int profile_seq_show(struct seq_file *m, void *v) > +{ > + struct trace_probe *tp = v; > + > + if (tp == NULL) > + return 0; > +
tp will never be NULL, which is guaranteed by seq_file
> + seq_printf(m, "%s", tp->call.name); > + > + seq_printf(m, "\t%8lu %8lu\n", tp->nhits, > + probe_is_return(tp) ? tp->rp.kp.nmissed : tp->kp.nmissed); > + > + return 0; > +}
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