[issue19199] Remove PyThreadState.tick_counter field

[STINNER Victor]

New submission from STINNER Victor:

The C structure "PyThreadState" has a counter which is incremented in the bytecode evaluation loop (ceval.c), but never used.

    /* XXX doesn't mean anything anymore (the comment below is obsolete)
       => deprecate or remove? */
    /* tick_counter is incremented whenever the check_interval ticker
     * reaches zero. The purpose is to give a useful measure of the number
     * of interpreted bytecode instructions in a given thread.  This
     * extremely lightweight statistic collector may be of interest to
     * profilers (like psyco.jit()), although nothing in the core uses it.
     */
    int tick_counter;

Antoine Pitrou added the XXX comment when he merged the "new GIL" of Python 3.2.

Can we now remove it?

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messages: 199256
nosy: haypo, pitrou, serhiy.storchaka
priority: normal
severity: normal
status: open
versions: Python 3.4

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue19199>
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