Hi,
I come across the macro GSH_CACHE_PAD.
what I can guess from its name is it is used for padding, but unable to
understand, where exactly it is needed, also what the number indicates.
To be specific I am talking about below structure:
struct req_q_pair {
const char *s;
GSH_CACHE_PAD(0);
struct req_q producer; /* from decoder */
GSH_CACHE_PAD(1);
struct req_q consumer; /* to executor */
GSH_CACHE_PAD(2);
};
In above if I need to add another field like below, do I need to add the
pad ?
struct req_q_pair {
const char *s;
GSH_CACHE_PAD(0);
struct req_q producer; /* from decoder */
GSH_CACHE_PAD(1);
struct req_q consumer; /* to executor */
GSH_CACHE_PAD(2);
uint64_t total; /* cumulative */
};
Thanks in advance.
--
with regards,
Sachin Punadikar
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