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-rw-r--r--src/vcl/vcl_private.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/src/vcl/vcl_private.h b/src/vcl/vcl_private.h
index 8345e34e0c1..41a11b7123f 100644
--- a/src/vcl/vcl_private.h
+++ b/src/vcl/vcl_private.h
@@ -675,7 +675,11 @@ vcl_session_add_want_deq_ntf (vcl_session_t *s, svm_fifo_deq_ntf_t evt)
{
svm_fifo_t *txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
if (txf)
- svm_fifo_add_want_deq_ntf (txf, evt);
+ {
+ svm_fifo_add_want_deq_ntf (txf, evt);
+ /* Request tx notification only if 3% of fifo is empty */
+ svm_fifo_set_deq_thresh (txf, 0.03 * svm_fifo_size (txf));
+ }
}
static inline void