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alsa: Reduce jitter in irq based software timestamping

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We would timestamp within an unlikely block, which would introduce
additional jitter to current_time, which would have an impact on
the performance of the timer sensitive code.
This commit is contained in:
Dimitrios Katsaros 2024-02-14 09:26:08 +01:00 • committed by Wim Taymans
parent 4e24b6e265
commit 32f507d687
1 changed files with 1 additions and 1 deletions
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2
spa/plugins/alsa/alsa-pcm.c
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@ -3180,7 +3180,7 @@ static void alsa_wakeup_event(struct spa_source *source)
uint64_t expire, current_time; uint64_t expire, current_time;
int res, suppressed; int res, suppressed;
if (SPA_UNLIKELY(state->disable_tsched)) { if (state->disable_tsched) {
/* ALSA poll fds need to be "demangled" to know whether it's a real wakeup */ /* ALSA poll fds need to be "demangled" to know whether it's a real wakeup */
int err; int err;
unsigned short revents; unsigned short revents;