xiaoxiang781216 commented on pull request #4035:
URL: https://github.com/apache/incubator-nuttx/pull/4035#issuecomment-876485440
> So we use more resources and couple work-queues with watch dogs, but the
performances is superior.
>
work_s has 6 int before modification, need 7 int, so each work requre
additional 4 bytes. but we can use union like this to achieve the same size as
before:
```
work_s
{
union
{
struct sq_entry_s sq;
struct wdog_s timer;
};
worker_t worker;
FAR void *arg;
};
```
since sq and timer is never used at the same time.
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