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pp2: change default queue size

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Reduce default queue size to twice the vlib frame size. This throttles
the PP from transferring more packets than are necessary for the next
round of graph execution on a core. When combined with DMA'ing into L3
cache, Mpps for 64B packets increases 35%.

Change-Id: I0afe426d23560f262fdc56accb6302b099bd0076
Signed-off-by: Brian Brooks <brian.brooks@arm.com>
This commit is contained in:
Brian Brooks
2018-06-27 15:53:46 -05:00
committed by Dave Barach
parent f91080c011
commit 9bae0ca53b
1 changed files with 2 additions and 2 deletions
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4
src/plugins/marvell/pp2/pp2.c
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@@ -200,8 +200,8 @@ mrvl_pp2_create_if (mrvl_pp2_create_if_args_t * args)
n_outqs = tm->n_vlib_mains;
/* defaults */
args->tx_q_sz = args->tx_q_sz ? args->tx_q_sz : 2048;
args->rx_q_sz = args->rx_q_sz ? args->rx_q_sz : 2048;
args->tx_q_sz = args->tx_q_sz ? args->tx_q_sz : 2 * VLIB_FRAME_SIZE;
args->rx_q_sz = args->rx_q_sz ? args->rx_q_sz : 2 * VLIB_FRAME_SIZE;
if (vec_len (ppm->per_thread_data) == 0)
{