• Namhyung Kim's avatar
    perf tools: Introduce timestamp__scnprintf_usec() · 99620a5d
    Namhyung Kim authored
    Joonwoo reported that there's a mismatch between timestamps in script
    and sched commands.  This was because of difference in printing the
    timestamp.  Factor out the code and share it so that they can be in
    sync.  Also I found that sched map has similar problem, fix it too.
    
    Committer notes:
    
    Fixed the max_lat_at bug introduced by Namhyung's original patch, as
    pointed out by Joonwoo, and made it a function following the scnprintf()
    model, i.e. returning the number of bytes formatted, and receiving as
    the first parameter the object from where the data to the formatting is
    obtained, renaming it from:
    
       char *timestamp_in_usec(char *bf, size_t size, u64 timestamp)
    
    to
    
       int timestamp__scnprintf_usec(u64 timestamp, char *bf, size_t size)
    Reported-by: default avatarJoonwoo Park <joonwoop@codeaurora.org>
    Signed-off-by: default avatarNamhyung Kim <namhyung@kernel.org>
    Cc: David Ahern <dsahern@gmail.com>
    Cc: Jiri Olsa <jolsa@kernel.org>
    Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
    Link: http://lkml.kernel.org/r/20161024020246.14928-3-namhyung@kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
    99620a5d
util.c 13.9 KB