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    perf evlist: Store pointer to the cpu and thread maps · 7e2ed097
    Arnaldo Carvalho de Melo 提交于
    So that we don't have to pass it around to the several methods that
    needs it, simplifying usage.
    
    There is one case where we don't have the thread/cpu map in advance,
    which is in the parsing routines used by top, stat, record, that we have
    to wait till all options are parsed to know if a cpu or thread list was
    passed to then create those maps.
    
    For that case consolidate the cpu and thread map creation via
    perf_evlist__create_maps() out of the code in top and record, while also
    providing a perf_evlist__set_maps() for cases where multiple evlists
    share maps or for when maps that represent CPU sockets, for instance,
    get crafted out of topology information or subsets of threads in a
    particular application are to be monitored, providing more granularity
    in specifying which cpus and threads to monitor.
    
    Cc: Frederic Weisbecker <fweisbec@gmail.com>
    Cc: Ingo Molnar <mingo@elte.hu>
    Cc: Mike Galbraith <efault@gmx.de>
    Cc: Paul Mackerras <paulus@samba.org>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Stephane Eranian <eranian@google.com>
    Cc: Tom Zanussi <tzanussi@gmail.com>
    LKML-Reference: <new-submission>
    Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
    7e2ed097
evlist.c 8.7 KB