[PATCH v5] graph: add optional profiling stats

[Morten Brørup]

> From: saeed bishara [mailto:saeed.bishara.os at gmail.com]
> Sent: Tuesday, 23 June 2026 10.34
> 
> > > > > +               /** Fast path area cache line 3. */
> > > > > +#ifdef RTE_GRAPH_PROFILE
> > > > > +               struct {
> > > > > +                       uint64_t calls;     /**< Calls
> processing
> > > > resp. 0 or 1 objects. */
> > > > > +                       uint64_t cycles;    /**< Cycles spent
> > > > processing resp. 0 or 1 objects. */
> > > > > +               } usage_stats[2];       /**< Usage when this
> node
> > > > processed 0 or 1 objects. */
> > > > > +               uint64_t full_burst_calls;  /**< Calls
> processing a
> > > > full burst of objects. */
> > > > > +               uint64_t full_burst_cycles; /**< Cycles spent
> > > > processing a full burst of objects. */
> > > > > +               uint64_t half_burst_calls;  /**< Calls
> processing a
> > > > half burst of objects. */
> > > > > +               uint64_t half_burst_cycles; /**< Cycles spent
> > > > processing a half burst of objects. */
> > > > > +               /** Fast path area cache line 4. */
> > > > > +#endif
> > > >
> > > > Is it an ABI breakage?
> Can you consider one array for all cases?

Ack.

> also, instead of adding cacheline for this profiling data, can we
> share with line 1 that used solely for xstats?

This profiling data is 4 indexes * 2 values * 8-byte fields, so one cache line in itself.