Re: [PATCH v7 3/3] binder: add transaction latency tracer

peter enderborg
2020-09-07T14:42:21Z

On 8/4/20 3:59 PM, Frankie Chang wrote:
> +void probe_binder_txn_latency_free(void *ignore, struct binder_transaction *t,
> + int from_proc, int from_thread,
> + int to_proc, int to_thread)
> +{
> + struct rtc_time tm;
> + struct timespec64 *startime;
> + struct timespec64 cur, sub_t;
> +
> + ktime_get_ts64(&cur);

I think sched_clock is what you want.

> + startime = &t->timestamp;
> + sub_t = timespec64_sub(cur, *startime);
> +
> + /* if transaction time is over than binder_txn_latency_threshold (sec),
> + * show timeout warning log.
> + */
> + if (sub_t.tv_sec < binder_txn_latency_threshold)
> + return;
> +
> + rtc_time_to_tm(t->tv.tv_sec, &tm);